Story Posting!- Onsen Plan Gone Horribly Wrong For the Foxy Trickster-(Naruto/DxD)- Naruko x Issei H- For JM

**everyone in this story is eighteen years of age or older (flips bird at Patreon MA content guidelines) and everything is consensual. Blah, blah.

*Also fair warning- will involve Full-on Genderswapping for one particular character. This story was just done recently and also for a patron. Enjoy

Still going to work on the list selections this week and do FCFS again on Friday/Saturday.

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Onsen Plan Gone Horribly Wrong For The Foxy Pervert’

Naruto Series/ DxD

By Azure/For J

Chapter One- Bodyguard Duty WIth Booty Call, Naruto’s Sexy Jutsu Mishap Gone Awry (Naruko x Issei Hyoudou)

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Inside of Konohagakure…

….

“For the last time, Naruto, you are doing this mission and that’ll be the last I hear of all this whining. Seriously, you’re a Leaf Ninja for goodness’s sake. Aren't you used to doing missions like these as a Genin? Well, you technically are still a Genin, but my point still stands that this Diplomatic visit requires you to play Bodyguard for this young man.” Came the voice of a sultry yet brusque woman as she stared down the indignant face coming from someone far younger. Her eyes were a lovely shade of almond, her skin was pristine in its milky porcelain hue, and her body was rife with curves all around that were all unfairly covered up by her clothing, apart from her breasts always sticking out through her Kimono-style blouse. She was the Fifth Hokage, the Godaime known as Tsunade Senju and right now she was sporting a vein at the right top half of her forehead while she stared down Naruto with her arms crossed.

Across from her was the All-Star ‘Elite’ Ninja in training, Naruto Uzumaki, who had stood there indignantly with a bit of a pouty face after being told what his mission was going to be all weekend. He was wearing his typical orange jumpsuit with dark stripes and trimmed sleeves, his headband stayed worn around his forehead at all times like always, and his often fierce pair of ocean blue eyes which usually burn with determination and energy, now looked irate after he was given the most humbling mission he had ever received. 

“B-b-but..! Oba-San..! You could leave bodyguard duty to some of the other guys, can’t you? I had a training trip scheduled today for this weekend with some of the other guys in our friends group. Why am I going to stay behind to babysit some guy from a school I’ve never heard of? I hate to sound braggy and come off like a show-off, but this is a waste of my time andI used to recapture lost pet cats for every wife of a Daimyo all the time back then too. Hmph..!” Naruto fumed adorably, reminding Tsunade that he was still very much a kid deep down, despite how disciplined he seemed to be when it came to life-or-death matters of the Ninja world. 

Together, they were inside a hallway somewhere inside of the Hokage Tower with Tsunade impatiently tapping her right foot onto the surface of the ground while looking annoyed at Naruto right now. She put her hands on her hips and stood tall and proud, reminding the blonde that she was in charge around here and even broadcasted a strong Killing Intent to keep him rooted in place out of fear.

“Emph..! H-hey…whoa hold on..! Relax now, okay? I..I..I..never said I wasn’t going to do this mission, j-just that I hated having to get picked for it, Oba-San…! Heheeh.” Naruto chuckled nervously as he saw the very literal waves of murderous intent emanating from Tsunade’s body as she began to explain herself while he listened intently this time around.

“Now that’s what I like to hear, Naruto. And besides, all our other ninjas are busy on faraway missions, including the Rookie Nine. You’re the only capable one I have on staff right now, and this mission couldn’t have come at a better time. I need one of my best Shinobi to protect this boy, Issei Hyoudou, while he’s here on a diplomatic visit from Kuoh. It is in our village’s best interest to foster a very positive relationship with this school and let them know that the Hidden Leaf is an ally to them, no matter what. There is more to it than just that, however, but I cannot say more nor stress the importance of this mission. You got it?” Tsunade then stomped her right foot down on the ground hard, creating a small shockwave that nearly shook Naruto off his feet as he anxiously nodded in begrudging acceptance after hearing her reasons. “Good. Trust me, I wouldn’t be wasting your precious time with something so menial when you could be doing more important work, but this is vital to our village’s reputation and success in establishing faraway relations with other powers. And this boy, Issei, is important to Kuoh. Simply show him to the Onsen for the rest of the day since he’s…ahem.. requested to go spying on women there before he arrives in my office.”

Tsunade added the last part almost shamefully, with her head hanging a bit. Uon hearing that last part, Naruto was left in disbelief as he looked at her with a cocked eyebrow.

“He…what…?! Are you kidding me? I thought you wouldn't allow something like that. I mean, I got pummeled a bunch of times for accidentally falling into the women’s bath a while back, why does this guy get such special treatment?” Naruto asked vehemently, hearing his leader sigh as she raised her head to resume her earlier composure with a forced smile.

“Because, Naruto, he has Diplomatic immunity, and we want to establish a secure relationship with Kuoh and Issei’s particularly talented group. Believe me, I was stumped when I first heard that, too, but unfortunately, the Head of his group within that school vouched for him personally and agreed to such an outrageous request. There’s nothing I can do, so just show  him to the Onsen and let him do his business, and then, he’ll be gone before you know it as the weekend flies.”

Naruto ruefully nodded back to her and saw the woman gesture back to the Hokage Office, where the ‘guest’ was waiting for him. 

“Okay, Oba-san. I guess I’ll just take him to the onsen and see what happens if he says he wants to stay there for a while. And here I thought I was going to see some action when you called me over here for an important mission.” Naruto bitterly replied, resulting in a pleased grin appearing on Tsunade’s face as she went over to slide open the doors to her office, where he saw the aforementioned guest waiting in a chair.

He was hardly any younger than Naruto, and yet, he seemed a bit more mature in terms of physique from what he could tell when he turned his head to greet the pair after they returned from out in the hallway.

“Hey there, Lady Tsunade. So, have we sorted things out? Because I’m ready to enjoy a full day’s worth of an Onsen trip here! The name’s Issei Hyoudou, by the way. Hope we get along.~” The boy exclaimed in a sly, energetic manner as he got up from the chair, greeting Tsunade and Naruto with a friendly smile. He didn’t try to avoid being caught staring at the former’s humongous breasts when they faced each other and watched for every meticulous movement of those large lumps of flesh, shaking slightly when she bowed her head politely to him. ‘Mmmngghh! Oohhh man! She’s seriously got the biggest boobs I’ve seen so far..! I hope all the other gals at that place will be just as abundant with Oppai size as she is. If they’re flatsville, then this trip might become a lot less fun than I was promised.’

Tsunade spoke up by clearing her throat and gesturing toward Naruto while smiling politely at him.

“Hyoudou-San, again I’d like to thank you for coming here to visit as per your leader’s recommendations for our continued cooperation with my Village. This boy here is one of my most elite Ninjas, he’ll be your bodyguard for your stay here and show you the sights our Village has to offer once you are finished enjoying the Onsen we have here. The hot, mineral-enriched bath waters we have at that place are incredible, trust me on that. I’ve already informed the Onsen manager to let the two of you stay there the entire day if you like. You are welcome to come and go at any time.~” Tsunade said, maintaining absolute composure with a sweet, polite smile on her face while Naruto resisted the urge to grumble when reaching for Issei’s offered hand to shake. 

“My name is Naruto Uzumaki. If you’re ready, then let’s go. I know the quickest route to the Onsen.” Naruto said with a half-empty smile as he shook Issei’s hand. The other boy was tall, had a fairly built figure despite being lean and youthful. He was surprised by what he was wearing, which consisted of a simple red t-shirt underneath an open uniform jacket with matching pants, both colored dark. Naruto had to admit it was stylish, if a bit basic,and he wondered how this young man could possibly be so important to Kuoh.

“Sounds perfect..! Lead the way, pal. I’m ready to see the sights and enjoy the view aplenty at the Onsen. I bet there’ll be a lot of busty, gorgeous women there, I can just feel it!~” Issei beamed excitedly, making Naruto slump his head in disbelief again while Tsunade maintained her peaceful expression of composure and tranquility. Secretly, she was being reminded of Jiraiya and partially wanted to slug the young man into next week for daring to peek into the female side of the Onsen. 

‘Naruto better keep an eye on him so that he doesn’t get into any too much trouble. The last thing we need is a diplomatic incident with that School, but I also don't want a perverted young man to go peeking at our women, either. I am in a rough place, maintaining this peaceful facade and wanting to give in to punishing this young horndog.’ She thought somewhat angrily, whereas Naruto just had one thought in his head regarding Issei’s eagerness to peek at women.

‘Is this guy related to Jiraiya-Sensei, perhaps? Seriously, it's as if he's haunting me from the grave by throwing another lecherous Onsen pervert at me to babysit..! Guh..!’ Naruto winced and swallowed his disgruntled attitude down with a cheerful smile before nudging his head in the direction of the doors when speaking to Issei again. “Alright, let’s go, Hyoudou! This way.~”

“Alright..! Time to enjoy the sights! Hee hee.” Issei chuckled perversely as he walked past Tsunade, following Naruto and missing the popped vein appearing on the side of the woman’s forehead as they left. ‘If they’re all as big as hers then I’ll be one happy diplomatic guest here. I’ve heard so much about this foreign land rife with Ninjutsu, deadly assassins, and gorgeous Kuniochi wearing skimpy clothing. Ooohh, I hope it's everything that manga hypes it to be like.’

With that, the two left and the doors slid close behind them, leading tsunade to visibly breathe a great sigh of relief as she was one moment away from wanting to slug Issei in the face for staring at her massive tits earlier.

“Oh boy, Jiraiya’s spirit lives on in that boy. I hope Naruto can handle him and whatever antics he may bring when they get there. Hmmm, I’m sure it’ll be fine.” Tsunade said to herself as she returned to work behind the Hokage Desk while Naruto and Issei made their way out of the tower to head over to the Onsen.

….

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Inside of the Onsen, after checking in with the Inn manager and booking themselves a pair of towels and bathing buckets to take with them, Naruto and Issei ventured into the illustrious bathhouse together while wearing only their bathrobes at the moment. They were given the Mixed Baths as part of Issei’s request, and there, it was dimly lit with a myriad of floating lanterns in the scenery along with the usual floating candles within the waters. Naruto guided Issei inside and, to his misfortune, saw that there was no one else around besides them.

…

“Huh…?! What gives? I was expecting at least a ratio of men and women here, preferably the women, but it doesn't look like anyone’s here at all. I thought Mixed Baths were supposed to be a blessing in disguise for guys like me.” Issei complained and anxiously looked around in hopes of seeing any attractive, busty women nearby as he pulled aside one bush and another in the scenery in hopes of spotting a hidden spot somewhere where women could be bathing. 

To his disappointment, it wasn’t like that at all, and there was no one in the Mixed Baths with them to be seen. 

‘I can’t believe I agreed to bodyguard this guy while he tries to be a peeping Tom on our village’s women.’ Naruto thought to himself in disgruntlement, eventually hearing Issei sigh loudly before slumping over on his way to sit down inside of the hot waters of the bath.

“Oh well, guess I’ll just soak in the atmosphere. Hmph, talk about a letdown. This whole trip has been nothing but a disappointment. I mean, I hate to sound too much like my friends, Matsuda and Motohama, but there’s a severe lack of Oppai goodness in this village, Naruto-san! Seriously, I live on big breasts…! Live, I tell ya, and the only one who's got them in spades is that smoking hot Village Chief of yours. Uuaaagh..!” Issei despairs, comically slumping his head back as he rests his arms over the sides of the stone rim leading into the water around them. He was wearing his towel around his waist alongside Naruto and audibly groaned in disappointment again while the knuckle-headed Ninja reluctantly stepped into the waters with him after a moment. “I can’t believe Rias-Chan said that it was super important for me to visit and that the moment I’d set foot here, I’d see a lot of busty Ninja women during my stay. Mmmnmpp..! Weep for me, Naruto-San. For I have been deceived and feel dejected.”

“Heh, you don't say. I totally weep for you, Hyoudou-san.” Naruto replied dryly as he went on to explain, while getting into the water with him.”Maybe it's just one of those days when this bath isn’t as busy as it usually is. I mean it is barely Friday afternoon, after all. This place isn’t bustling much around this time of the day until later at night.” 

Naruto said this to him with half-hearted reassurance. He was visibly wincing with annoyance at Issei’s attitude as he continued to dramatically hang his head to the side, feeling obviously very disappointed that there weren’t any women here. 

‘Seriously, somebody seems full of himself here, and that says a lot coming from me. Who does this guy think he is anyway? Going on about our village’s women and their lack of large breasts? Hmph..! He’s just as big of a pervert as Jiraiya-Sensei was when we traveled together to train outside in the world away from the Village for three years. I think somebody needs to be taught a lesson, and I know just the way to do it too.~’ Naruto thought to himself while hearing Issei groan some more in frustration. 

The two of them were basking in the glowing atmosphere of the Onsen’s steamy, tranquil environment. The only sounds they heard were the built-in water fountains in the background to keep them company.

“You know, Hyoudou-San, if you were here with another girl instead of me, then she still wouldn’t let you fool around with other women in her presence, let alone let you peek at them at an Onsen. Did your Boss, this… Rias gal, really say you could behave in such a way when visiting another country on a diplomatic visit? Maybe you could consider it Karma in advance for wanting to peek at them since there is no one else here besides us.” Naruto said as he tried brokering a more peaceful relationship with Issei right now than going with his extreme idea of humbling him. Issei turned his face to the side to stare at him in a comically disheartened look before shrugging with indifference.

“I don't know about that, Naruto-san. I mean, none of my girlfriends back home mind it all that much when I go sneaking into the girls’ locker room at my school. And oh, Rias and Akeno both have the biggest breasts you’d ever see. Right now I wish I could smother my face in them and let them pat my head while I motorboat those beauties. Mnnhbhp..! Just being here away from them at all, and so far away in a place lacking so much busty Oppai has me deprived of my joys in life, you know.” Issei said, putting on a dramatic flair to his words while Naruto looked at him in disbelief, with his jaw falling open in shock.

“You..have girlfriends? As in plural? W-why…how…? What are you even doing hounding other women when you’ve got them…?” Naruto asked incredulously, trying to keep his voice level and not offend his village’s guest, while Issei simply went on without a care in the world. 

“Yeah, I’ve got several of them and they all take turns sharing my attention, mostly so I can focus on their individual needs more often. And by needs, I mean the ever-burning desire to take them to bed and turn those bedsheets into a messy scene right out of a smutty movie. It's never enough with my girls, trust me. Both Akeno and Rias are even among the horniest of them all and that’s saying something. Ah, I always enjoy following around with them in and outside of Kuoh’s walls, sometimes out in public where no one could see us, too. Even if they occasionally did, Rias would always cast a Spell on them to make them forget or I’d have Akeno simply flash her gigantic boobs to make any male onlookers gush a massive nosebleed till they pass out. Any female ones would just seethe with envy and run away from the scene, feeling inadequate in comparison to their bust sizes. Heh, we always so much fun together on our escapades.~” Issei bragged, steadily raising Naruto’s anger levels to the extreme as he took a look at Issei’s crotch, where he wore only a tiny towel to cover his waist before deciding to humiliate him. ‘Seriously, Akeno’s tits dwarf Rias’s in size and bounciness with those perfect shapes. I always enjoy them both equally, as with the others, but still, if they were to do a breast-measuring contest, then Rias would be put to shame. I miss them so much right now.’

‘He’s got..multiple girlfriends and it's still not enough..?! Alright, I’ve had it! Time to take this guy down a peg..!’ Naruto thought to himself, feeling invigorated with a sense of vengeance as he continued to soak in the Onsen’s scolding hot waters for just a few minutes while he thought up a plan to make Issei feel utterly humiliated by his own lust. When piecing together the last few components of his wild and rather crazy idea, Naruto was left smirking widely as he decided that now was the time to put his esteemed guest in his place. 

Quickly checking the sides and all of his surroundings to make sure they were alone, the Knucklheaded Leaf Ninja arose from within the hot waters while keeping his towel worn around his waist. Issei was busy tilting back his head with his eyes closed, relaxing with his arms resting on the flat stone basin around the edge to notice him till he heard Naruto clear his throat to say something.

“Ahem…! Ugh..hey, I uh….gotta go take care of something that I just remembered I needed to do for this…mission. I’m sending someone I trust in here to cover the rest of my shift as your acting bodyguard in just a few minutes, okay? She’ll be here in no time at all, okay? She’s someone I trust explicitly.~” Naruto hastily reassured as he kept his towel held tightly around his waist, secretly grinning as Issei nodded back to him absentmindedly without caring what he was saying. He was far too relaxed, from what Naruto could see.

“Uh huh, yeah sure, pal. Try not to keep me waiting too long, I wanna see if this wonderful Village of yours has got any other places with gorgeous women lingering around. Preferably any with gigantic boobs, heh.~” Issei responded with a cocky smile, tilting his head back some more while Naruto hastily shuffled toward the nearest exit to this Onseen room. He was visibly seething with contempt for the young man at the moment, for a variety of reasons, and once he had left the steamy room to go out into the hallway, Naruto got ready to initiate his ‘foolproof’ plan to embarrass the man.

….

“Pft, you shameless dog. I’ll show you. Time to really put in the Chakra on this Henge and make it last a long time to sell the illusion. This is how you say ‘you’ve been Punkt’, Hyodou-san.~” Naruto said quietly to himself as he formed the proper Jutsu Kata signs with his fingers when standing still, channeling a good bit of his abundant Chakra and closing his eyes to concentrate on the ‘Henge’ transformation that he desired. When he got it in mind, he smiled, then called out the words of the Ninjutsu art in a hushed fashion. “Sexy-No-Jutsu..!”

!

A body-sized puff of smoke came about as a result of the transformation’s success, leaving a slightly taller and rather beautiful blonde girl in Naruto’s place when it cleared. She had the exact same fair-hued skintone as Naruto, the same whisker marks around her face, bright blue eyes full of wonder, and a highly voluptuous body worthy of envy. She was decently filled out in terms of bombastic hip proportions, a slim waist, and extremely sizable tits just bobbing around gently from inside the towel she was wearing. They were at least G-cup-sized, but Naruto amped them up to be a bit bigger than they’d normally be when performing the Sexy Jutsu Art. They were about the size of her head at a robust I-cup size, and the change went well with the rest of her body’s proportions. Her long, silken blonde hair was done in its usual pair of low-hanging twintails just dangling off the sides of her head with a pair of feathery bangs combed over her forehead. She grinned confidently with a toothy smile as she put both hands around her waist, strutting her stuff in a nearby hallway mirror when checking to see if there were any mistakes.

To Naruto’s relief, there wasn’t. And as of right now, ‘Naruko’ was here to take his place as bodyguard for Issei with only one goal in mind.

“Alright, everything looks good! Hehehe, time to humiliate this guy and make him regret wanting to perv on my Village’s women so shamelessly. Hmph, I can never stand perverted types, so this’ll be sweet Karma since he has girlfriends and still wants to do that sort of thing.” Naruko said in her transformed voice which sounded as shrill and as girly as Naruto came to expect when doing the transformation Jutsu. It was as if he had been swapped out with a twin sister who possessed a very developed body and she checked herself out one more time before winking at her reflection and going into the Onsen room again. ‘Here goes. As much as I’d hate to risk a diplomatic incident of sorts, I still think that you deserve some humbling,  Hyoudou-san. Hopefully Oba-san doesn’t punch me to the Moon for doing this when…or if..she finds out about it.’

Before she moved, however, Naruko felt something was..off with this transformation that she couldn’t quite figure out. She paused in her steps and examined her hands with a furtive frown of confusion, feeling as though every part of her Transformed body felt ‘real’ rather than fake as it normally should. She felt up her ass and her sides with her hands, finding the sensation of touch strange and more intuitive than a Henge should normally be as she perked an eyebrow.

‘Huh, that feels…weird. It's like the whole solid illusion part of the Ninjutsu…changed somehow. Maybe it's just my imagination, and I’m overthinking it since it's been a while since I used this. Henge Jutsu was never my speciality anyway, but this’ll be good enough to wear while I go in there and prank him.’ Naruko thought, not realizing that even the voice of her thoughts had matched the appearance of a beautiful girl.

Walking back into the steamy Onsen room, Naruko found her way back over to the spot she had left as Naruto, making Issei perk up when he heard the sounds of water rippling with her re-entry into its scolding hot surface. As if Issei had some kind of supernatural sense when it came to gorgeous women, he perked up right away and opened his eyes to see the awe-inspiring sight of a beautiful and very well-endowed blonde girl now sitting next to him.

“Uuhhh…!? Holy..! Ngghh! W-who are you, beautiful?!” Issei exclaimed excitedly with his nostrils spreading open to puff out large huffs of air due to his newly excited state of mind. He had never seen such a gorgeous girl before, especially when she had gigantic breasts the size of her head. ‘Seriously..! She’s even bigger than Akeno and Rias-Chan..! And that’s saying something since they’re huge..! Is this a dream that I received while marinating inside of these hot bath waters…?’

‘Hehehe, hook, line, and sinker.’ Naruko thought before speaking up and putting on a smiling face when greeting Issei. “Hello there, my name is Uzumaki Naruko. I’m Naruto’s sister, he called for me to watch over you while he goes off and takes care of something important.”

“Oh ho ho? Is that so, yeah? Well, I’m perfectly fine with that, you gorgeous girl! Hehe, my name is Issei Hyoudou, I hope we can get to know each other intimately while he’s gone.~” Issei greets, eying the girl’s bust shamelessly as he scoots closer to her from within the waters, bringing the sight of his towel-laden crotch closer to her legs. Naruko pretended to be bashful and anxious around him, brushing a hand through her hair from the side while eying Issei more sternly and speaking up again.

“Hehehe, ohhh..Hyoudou-San, are you hitting on me? Not very professional, given that you’re here on an important diplomatic visit, you know? Shame on you.~” Naruko pointed out in a cutesy manner, making Issei bashfully rub the back of his neck as he nodded to her accusation without shame. He stayed close to her and had his masculine, highly ripped upper body leaning close to her right shoulder from the side, where he admired the robust cleavage the girl had peeking through her towel. Naruto was glad that he made the Henge Art expand the towel size from what it was; otherwise, he’d get Issei acting even more brazen and forward with her. ‘Uugh..! You’re getting way too close and intimate for me, pal. I’d better pull off that towel of yours and put my plan into motion. It’s time for you to feel the wrath of a girl mocking you for your penis size, and I’m assuming you’ve got a small  one down there.’

“Well, it’s alright if I do. I’ve already got my girlfriends’ permission to flirt with any local women I meet here. Rias-Chan knows how I work and approves of it as long as I keep myself in control. And believe me, with Ddraig, it can be pretty hard to keep this Dragon Emperor’s sex drive in check sometimes. Hence the need for multiple girlfriends and a very active sex life.~” Issei explained, making Naruko give him a flat stare as she chuckles dryly with no amusement to be seen on her face.

“You don't say. Well I doubt they said that they were okay with that at all, Hyoudou-san. Not to sound skeptical or rude, but I don't believe you have a whole harem of girlfriends who gave you the go-ahead to flirt with other women. Also, just because you’re in the company of a beautiful one such as myself, doesn’t mean you’ll be getting lucky with me anyway.” Naruko chastised, and Issei simply nodded along with whatever she was saying, not truly paying attention to her, which annoyed her even more. ‘Uughhh! This guy..! He’s totally not listening to me! I’d better pull off that towel and mock him with all the scathing insults I know. Sai-san’s constant dick comments back when we met will serve as a good example.’

Issei then looked up into Naruko’s eyes, finding himself getting lost in those dazzling blue orbs just as much as he was admiring her boisterous pair of tits up close. Naruko kept the towel around her chest, tightly clutching the opening folds together, when she heard Issei counter her earlier assumption with a confident smile.

“Oh, believe me, I’m telling the truth, Naruko-Chan. My girls all love me and we’ve all come to understand each other, which is more than I can say for anyone else who is lucky enough to have a harem of loyal, beautiful girls waiting for him to come home to fuck them into nearly comatose states of post-sex bliss. They know how I am and are okay with it, but more than that, they trust me to always keep them close to my heart, even when I’d have to obey my urges with other women in other faraway places like this village.~” Issei said, making Naruko visibly groan with her right hand rubbing down the surface of her forehead as she shot another nasty look at him. ‘Even from here, I can see it all. She’s got the thickest ass I’ve seen, which is perfectly in-shape with a supermodel’s, putting Rias-Chan to shame. And her tits, ooohhh..her tits, are easily bigger than Akeno’s and I never thought that was possible till today. I…I’ve gotta do something with her, I can’t stand waiting any longer since it's been a while already..!’

“Okay, I refuse to believe that any girl would see anything worthwhile in a pervert like you, let alone have a harem of them. You can try and sell it all you want, Hyoudou-san, but I’m not buying it. I’d bet you even got a tiny dick down there too..!” Naruko spat impatiently, pointing down at his crotch with a finger as she had had enough of Issei’s boasting. She was smirking arrogantly, thinking she had him pinned down by her accusation, but to her surprise, Issei was smiling back just as confidently as before as he stood up from within the waters. “Err…what are you----”

!

He pulled open his miniature towel from around his waist, brandishing what looked to be the biggest cock she had ever seen, bar none. 

“W-w-whoahh..! W-what’s that..?!” Naruko screeched out in surprise, blushing red at the sight of Issei’s massive, wrist-thick, fourteen-inch-sized cock standing firmly erect as though it were a thick tube made of flesh. He was easily as comparable to a horse in terms of anatomy as a human male could get, and what made it worse was that Issei also had a surprisingly ripped body that made him appear as a bodybuilder when he had stood up from the waters. Earlier, he was just wearing his bathrobe before getting in, and now he was showing off an arm-length cock that stood tall before Naruko’s gobsmacked face. ‘He’s…huuuuuuuuuge! What the hell…!? T-t-this…may have shot down my plans to mock him and humiliate him…’

Issei loved the look she was giving his cock as he remained standing upright atop the flat stone surface of the basin underneath the waters. His cock was thick and hard with his balls drooping stiffly in all their tangerine-sized shapes beneath his shaft. To anyone who’d be looking in from the outside, they’d think Issei had sprouted a slightly smaller third arm from between his legs. He was just that thick and well-endowed, making Naruko unknowingly rub her thighs together as she felt a hint of sensitivity blooming from inside of her womanhood somehow. Her mouth was left gaping as she stared at it for almost half a minute until Issei spoke, bringing her out of her trance.

“Well, so much for that ‘tiny dick’ assumption, eh? I think things were getting a bit hostile there, Naruko-Kun, but I assure you that my girlfriends are real and we love each other very much. This right here is one of the prime reasons they do, but it's also the reason why I have such a relentlessly abundant sex drive most of the time.~” Issei boasted, leading to Naruko crossing her arms underneath her breasts and huffing indignantly as she tried looking away from his cock.

“Hah..! It’s not…s-s-s-so big…! You know..! I’ve seen…b-b-bigger than that…! Yeah..! And I bet you probably wouldn't last that long in bed anyway…!” She claimed, obviously bluffing, which made Issei grin in amusement as he cupped his chin into one of his hands while admiring Naruko’s humongous breasts from above. She was flustered and having trouble hiding it, which made her even hotter in his eyes as he felt his dick twitching slightly with excitement.

“Oh really? Well, wanna bet on that assumption then, Naruko-Chan? I’d love to make you eat your words.~” Issei challenged, drawing Naruko’s attention back onto him as she focused her eyes on his face rather than his crotch when turning her head to face him. 

“Hmph, what’s your wager, Hyoudou-san?” She asks warily, and Issei, popping his crotch in front of her face a bit as a show of confidence, smiles as he goes on.

“Simple, since you’re so sure I won’t last long with this bitch-breaker here, I challenge you to a bet. You’ll try and make me cum prematurely with an early ejaculation in the span of just a few minutes. That’s the weakest any man can do, most of the time. If you can work your magic and humble me by doing that, I’ll behave by doing whatever you ask of me while I’m here in Konoha and even buy you whatever you want during my stay.” Issei challenged, making Naruko perk up with the fantasy of ordering up mountains of Premium Quality Ramen bowls appearing in her mind. This caused her to salivate a little as Issei went on. “But if I win by outlasting…let’s say four minutes, then I…get to fuck you. Right here. Right now, and for however long I want during my stay in Konoha for the rest of my visit. What do you say?”

“Urghh! T-those are steep conditions alright, b-b-but if it gets you to behave and buy me mountains of Ramen bowls…then I’m all for it! I hereby accept your conditions and take you on this bet. Let’s do this..!” Naruko said, feeling pumped full of excitement and feeling that lingering sensation of ‘authenticity’ in how her Henge’d body felt lingering in the back of her mind. This caused her to worry a bit, and naturally, Naruto felt disgusted at the idea of using his Henge disguise as a woman to bring Issei off. He was secretly worried this might backfire in some way or another, but the promise of a nearly endless supply of Ramen as well as having Issei behave for the rest of his mission was too tempting to reconsider.

“Awesome, alright then…I’ll just sit down here and get comfortable first. But you must take off that towel and use those enormous breasts of yours in your efforts to bring me off. Let me just set this Magic timer first.” Issei said, taking a seat at the edge of the Flat stone basin on the edge of the waters with his enormous cock remaining sticking out like a ship’s mast. Just seeing it made Naruko nervous as she watched him manifest a strange-looking Red Gauntlet around his right arm and materialize a holographic hourglass made of magical energy. It had the number set to four minutes, and he was ready to tilt it, beginning their challenge, but he waited to see her unwrap her towel first. “C’mon, if you don't take out those tits for me to see and to feel around my dick, then the bet is off.”

“Uurrghh! Fine, you pervert. Here..!” Naruko quietly fumed as she pulled open her towel, releasing her lush pair of I-cup-sized tits to the world. They bobbled around the surface of the water gently like beachballs with slightly puffy nipples and robust, teardrop shapes, which made Issei smile widely upon seeing. His cock visibly lurched with excitement as she bashfully discarded her towel before floating over to place herself between Issei’s legs. ‘I really hope the Henge doesn’t come undone suddenly and turn me back into Naruto while I do this. That’d be the embarrassment of a lifetime for me…and maybe the end of my career as a Shinobi if Oba-san gets wind of it, but still… something does feel off. Everything feels…real somehow. This Henge shouldn't be so intuitive, nor feel life-like. Ugh…! Let’s just get this over with already, he’s probably going to burst with just a few actions using these breasts anyway.’

Naruko thought this to herself as she bashfully fumed with a red face when bringing her boisterous set of tits over to sensually surround both sides of Issei’s cock by pressing their gluttonous shapes into his shaft from each end of its surface. To her, it felt like she was pressing them against a solid, cylindrical shape made of granite-like flesh when she made skin contact, causing her to become flustered all of a sudden.

!

“Mmnngnhhhhh! Oohhh..yeahh! That’s the stuff..! These tits are amazing…! Aaah! Ooooopppaaaiiiiiii!” Issei chanted loudly with excitement as he remained propped back on his palms, leaning back a bit to allow Naruko more space in which she could work her tits buoyantly around the massive shape of his member. Naruko clumsily swivels them around in a gyrating motion, taking advantage of how ‘real’ her tits felt when pressing them around Issei’s throbbing member. Just the sight of his cock pulsating the way that it did disturbed Naruko on a lot of levels as she decided to pick up the pace by squishing them against each other while sliding even faster.

“Uh..uuh..uuhh..uuhh..uhh..uuhhh..c’mon..! Burst already, will you..?! I still can’t believe you have a dick this large..! Nnghh! Uuh..uuhh..uhhh..uhhh…I hope you’re enjoying my breasts, Hyoudou-San..! I bet they’re making you want to blow your load already, don't they?~” Naruko bluffed as she felt no change in the throbbing pulsations of his massive erection as it continued to slide out from between her tits over and over again with the waters swishing around her waist while she worked. To say his size astounded her was an understatement, and it made her body feel tingly down between her legs the longer she rolled her tits down the thick surface of his erect penis. ‘Seriously..! C’mon! Explode already..! Gnghh! I don't wanna be doing this for too much longer.’

Issei, however, was greatly enjoying the sensation of her lush tits as they were easily the softest he’d felt by far. Not even Akeno’s or Rias’s breasts felt as good when they squeezed themselves against both sides of his cock. And Naruko’s exuberance in trying to get him off certainly added to the pleasure he felt as she was really giving it everything she got. Still, Issei felt that a bit more effort was needed as he tilted his head forward with a wry grin, being directed at her. The girl’s ample body jostled about from within the waters with her long twin-tails dancing around each side of her face with the increase in momentum she was giving her movements.

“Yeaahh! This feels great and all that, it really does..! But it’d feel better and may likely cause me to cum early if you use your mouth to suck on the tip while doing that. It’s basic stuff, and I figured that Kunoichi were predisposed to acting as seductive spies with plenty of knowledge in the art of sex to know what makes a man tick. C’mon, Naruko-Chan. I’m waiting for you to give it a wholehearted try now. Hehe.~” Issei teased as he chuckles in amusement at the girl’s obvious struggle to get him off. It felt so good for him to have those smooth, massive breasts smothering nearly every inch of his cock as she was exhibiting a tantric flow of movement, sliding them up and down till she slowed herself a bit before leaning forward.

“Uugh! Fine..I guess I’ll..use my mouth then, you’d better appreciate my willingness to indulge in your perversions, whereas other Kunoichi would just knock your lights out before tossing you out of the Onsen, Hyoudou-san.~” Naruko said to her with an embarrassed look on her face as she dipped her down between her tits a bit more, noticing that Issei wasn’t fazed by her words in the slightest as she opened her mouth wide. She was in disbelief over her actions as she brought out her tongue and pressed it against the thick glans of the young man’s monstrous cock before pursing her lips around it entirely. “Annhnmhh….slrlrrlurup...mmhmm..hhmhm..slrlrup..slrlrrhuppp..sssllrrup..mhn..nhmh..nghmm..nbhm!~”

She began sucking off the tip in earnest, keeping her lips squeezed tightly around the head while virulently pumping her tits in coordination with her head-bobbing movements. Deep down, Naruko was admittedly disgusted with herself, yet another part of her body started feeling truly aroused the longer she had the taste of Issei’s cock on her tongue. The more she felt this way, the more real her ‘Henge’ disguise as she gnashed her thighs together while hearing Issei moan aloud with enjoyment.

“Nnhhmhh! Yeahh! Finally! You’re bringing out your ‘A’ game now, Naruko-Chan! Nnhhmhh! Keep an eye on the timer now, it’s got your number, and I’m not feeling ready to pop just yet. You’d better pull out all the stop..aaanhh! Fuuuck! Nnghh! That feels so freaking good..! Keep going..! Nhm!~” Issei said between heavy breaths of elation as he felt the girl smothering her tits together when bringing them toward her lips for a tri-fold sensation involving her lips and breasts. Her tongue came rolling out all over his glans again and again, noisily slurping it all while eying Issei and the timer. 

Gradually, she began putting in a lot more effort in her breast-swaying motions while ignoring the need to beat Issei at his own game, only thinking about how much she was enjoying the taste and smell of his cock plunging partially into her mouth.

“Mmnh…slrlrlrurpp…slrlrulrrp..mmh..hnhm…mmhmm..sllrrupp..srhrrhpp..slslrurrpp..mnghghmhh! C’monn..! Nnuugh!” Naruko voiced between lurid noises of suction and moans as she watched the timer ticking down to the last minute. ‘I can’t believe I’m saying this, but the smell..and the taste…of his dick between my lips…is nauseatingly addictive..! Nnhmh! I can’t get enough of it, but why am I saying this..?! I’m not into other guys. I’m my original self as Naruto, aren’t I?! I’m….not Naruko. I’m not..! Right? Uuughh! Something about the Henge went wrong..! I can feel it..! Something’s changed! Nnhmm..nhmm…mnhmm…noooo! My time is about to be up and he hasn’t even let out a dribble of pre-cum yet either..!’

She panicked and started furiously swishing her tits up and down his shaft while hungrily slurping the tip of his cock even more strongly than before. She bobbed her head, weaving it between her tits in virulent bobbing motions as she cupped her tits tightly to bring them down his shaft even faster than earlier. She could tell he was getting close to cumming, judging by the volume of his moans and the sight of his cock throbbing heavily with his balls beginning to rumble underneath her breasts. Issei cast a look at the holographic timer beside him and smirked when he looked at Naruko, seeing panic in her beautiful blue eyes as she feverishly worked her tits down his cock to get him to explode. It was in the final five seconds, and Issei looked assured that victory was well in hand despite feeling ready to cum inside of Naruko’s tight, slimy mouth.

5…

‘Nooooo! C’mon! Cum! Nnhm..mhm…nhm..mnhmm!~’ Naruko thought as the lurid slurping noises escalated into a faster cacophony of ‘music’ filling the room.

4….

“Nnhmmh! Almost there! I mean the timer, not me..!  Nnh! Uuuuhhh..yeah! You’re doing a good job, by the way.!~” Issei commented aloud, enjoying the slick feeling of Naruko’s lips as she continued to massage his cock in vain while her lips felt the slow rumbling of his ginormous appendage getting ready to go off. 

But not soon enough, and in her eyes, it seemed as though he was completely in control of the impulses of his body.

3….

2…

1…

Beep..beep..beeeeeeep!

…

‘Damn it all! I lost..! Gaaaaaaaaagghhh!’ Naruko wailed in despair as she heard the holographic hourglass deliver the sound of her resounding defeat, beginning to remove her hands from her tits as she was ready to remove her mouth from the tip of his cock as well. That was until Issei’s right hand lunged out to grab the back of the girl’s head and forced her to swallow his cock all the way to the back of her throat! She was being held there above his waist with her entire mouth being filled up by his cock and forced to give him an impromptu deep throat. “Gnngghghh! srlrlrurupp..sshrlrlrurpp…srlrhrupp..srlrlrurpp..mmh..nngh..mnghgh..slrlrurururpp…srlrlrup....nghgmh!”

He continued holding her face there as he enjoyed the slimy visage of her slender throat for a few more minutes just before he ejaculated deep inside of it.

!

“Nngngghhhh! Here it comes! Gobble it all down, Naruko-Chan..! Mmnnghm!~” Issei howled loudly with pleasure as he felt his release coming forth in a surge from his length. His cock spewed forth thick blasts of sperm that came with incredible force down her throat, forcing the girl to swallow it all as quickly as it came, with the hope of avoiding being drowned in his sperm!

“Hmmpffbbhhhh!!! Gulp…gulp…..gulp….gulp….gulppp…gulpp...mngghhbbhhfff!” Naruko let out a series of muffled moans and grunts while her cheeks pumped outward, becoming full of Issei’s cum. Her throat bulged repeatedly as she struggled to swallow every last ounce he deposited into her esophagus for about a minute and a half till he was finally done and let go. ‘Uuughhh! How much spunk can this guy produce…!? Seriously..! It's as if he were a horse..! There’s sooo much..! Aaaaaahhhh..! Let go of my head already, bastard..!~’

Just when he finished cumming like a firehose inside of her mouth, he let go of her head, which resulted in Naruko throwing back her head with her mouth sputtering open in a series of choking coughs and gagging noises.

“Ahh…yeah! This is what I was talking about when I came here..! Heh! That Ramen-loving idiot brother of yours should’ve just brought you in from the start and left me with you for this mission of keeping me company. This arrangement is waaaaayy better, don't you think?~” Issei remarked, insulting Naruto a little after having enjoyed the slippery suction of his sister’s throat. Naruko herself wanted to bite back with an insult of her own, but she was too busy choking to really care or consider answering back while she recovered.

“Uuuuughgh! Cough..cough…..ggnghh! Gackk! uuugughhh!...huff..huff...you dick..! cough..cough...you came so much you could've choked the life out of me with that amount…! Uughh! I’m never going to forget the taste of your semen on my lips now….” Naruko said aloud, coughing a bit more as some of Issei’s sperm dripped down her chin and into the waters, with much more of it having gone down her throat. She raised her head back a bit to let the rest lingering around her palette to drip down into her stomach with a few more gulping sounds until she was finished. “Uuugh! huff…huff…...oh,  right….I lost….”

“That’s right, according to this timer here, you couldn't get me to pop my top before your given time was up. That means I officially win, fair and square….and you know what that means, don't you?~” Issei asked with a devilish smile on his face, eying Naruko’s massive breasts and examining the rest of her highly voluptuous body still halfway submerged in the water. The look of embarrassment and shame on her face made her look adorable, and he partially wondered if she was going to beg him for leniency on their wager till he heard her sigh.

“Fine….I guess that means you want to fuck me now, right? I gave my word and I won’t go back on it. Uugh…let’s…do it over there on the border outside of the Onsen’s waters so that we..don't prune up?” Naruko shakily suggested while hugging her arms into her hands, allowing her bulbous breasts to pop outward and jiggle a little in front of Issei’s eyes. It was purely unintentional on her part, yet it stoked the fire inside of his libido as he gleefully arose from his spot atop the underwater basin and offered her a hand.

“Yes, let’s do this. We’ll begin by going a little basic in terms of positions. I can guess that you’re probably a virgin, since you’re so unsure about this and look so bashful like a virgin maiden. Here I thought Kunoichi were trained to be sex spies from training earlier on, but that makes this even better. Come along and let me make you into a woman..” Issei offered with a suave, hungry voice that sent chills down the blonde’s spine as she took his hand and was led out of the Onsen’s waters with her towel being left behind. Issei got a good look at her supple ass and found himself salivating at the sight of her compact pussy with barely any pubic hair above her mound. What really caught his eye was the unique ‘marking’ on the surface of her stomach in the form of a fiery seal with eight ends and a spiral sign in the center. Ultimately, Issei hardly cared about that mark and didn’t ask, as the rest of her body was what he marveled at while she got out of the water. Her hips were wide and her waist was slender, making the rest of her gorgeous body perfect in his eyes. “Umffhh! Hot damn, I got lucky coming to Konohagakure after all! You’ve got a banging, hourglass body that’s perfect for me. Heheh.!”

“Uuuughh..! Kami, help me..” Naruko adorably whimpered as they took a few more steps to where a spot along the border rim of the Onsen was smooth enough to be comfortable to lie back on. 

She got down on it first and lay flat on her back with her face red with shame while Issei got on top of her, spreading her legs around his sides while guiding his massive cock over to the cusp of her cherry-colored sex with anticipation. Just seeing it above her, casting a shadow over her chest and stomach, made Naruko feel nervous while also feeling a tingle of wetness between her folds. 

‘I.. really shouldn't be feeling aroused at all by this..!  Something’s happened and I feel as though my body..as Henge’d woman…became real somehow..! Uuuuhh! That thing is going to split me open once he pushes it inside of me.’ Naruko thought, realizing her mental voice also became feminine without a trace of her original male self to be found. Just as Issei held up each of her thighs and guided the thick, bulbous head of his dick into the cusp of her folds, Naruko braced for the worst as he shoved his pelvis forward with a sharp thrust and a smile of glee.

“Hnnghh!~” Issei grunts as he pushes himself forward, sliding his dick into the girl’s virgin pussy and breaching her once-protected hymen in a single thrust!

Squealch!

“Gggrrrggnghhhhhh! Aaaaaaaahhh! Ooohhhhh! My…hymen..! Uuughgh! Oohh..the pain…b-b-but…it feels…too good…having such a big thing inside of meeeaaaaaaaaaaghghhhh!~” Naruko cried out in slight pain at first, then wailed in ecstasy as her legs shot out with toes curling around Issei’s sides.  Her pussy gushed outward in a series of spasms as her insides flexed tightly around the enormity of Issei’s cock, almost as if Naruko’s body was telling her to accept it immediately into her womb. Her body shuddered and sloshed around atop the floor, making her amazingly large breasts jostle buoyantly atop her chest, with her mouth falling open in shock and unwanted euphoria. 

Issei noticed the trickle of hymen’s blood leaking down her thighs and ignored it while giving Naruko a moment to adjust before he started hammering his pelvis into her groin from above. The feeling of her fresh, slick pussy squeezing its interior around him as though it was a second mouth was out of this world for Issei. Nothing felt tighter or more compact than the insides of Naruko’s taut sex gushing wetly around his cock while she tried to become adjusted to the pain. 

“Ohhhh…yeahhh! Nnhmhhhh! This has got to be the tightest pussy I’ve ever felt constricting itself around me..! Nnhmhh! I doubt even Akeno or Rias could compare, but then again, you’re in a league of your own when it comes to sexiness. I’m glad nobody else got to pop your cherry before me..! Also, did you just cum from me putting it in?” Issei asked this with a smug smile on his face as he felt Naruko’s insides flex tightly around his length while a troubled look appeared on her adorable face. He would’ve started off gentle, at first, before going wild on fucking her raw and taking the busty Kunoichi for a loop, but he was too excited to want to be a gentleman right now. Naruko’s flustered demeanor also added to his arousal and lit a fire in his libido as he began raising his thighs underneath hers with his pelvis drawing back only to slam into her navel hard. “Uunghh!”

“Aaaahhh! Uuaaahhhh! Mmghh! You’re…going already…!? Nngghh..! Sow down and let me get used to it first, you big-dicked jerk..! Rrrrgghghh!” Naruko refuted with a few moans of pleasure coming out between her loud yells. She felt Issei’s enormous cock quickly plunging the entirety of her pussy after piercing her cervix. Every part of her vaginal muscle just latched onto it tightly, causing the young man to moan loudly as he began fucking her with increasing strength by raising his hips and letting them crash onto her waist with every roll of his pelvis. ‘Damn it..! Raaaaarrrrhhhh! This Henge went completely wrong…somehow..! Rrrnrgghghhh! I should’ve been able to feel pleasure as a woman, nor even have a cherry for him to pop..! It’s become…really me now..! I’ve..turned into a busty chick…and I’m going crazy over feeling this asshole’s cock churning my insides..! Ooohhhhh..Kami! Help me..! Because I think I’m beginning to enjoy this a little too much now..! Raahh!’

“Mm..nh..mmhhg….mngh….mgn..ngh..mmgh..ngghh…mmghhh! Uuhhhhh! Yeah! Your pussy is the best! The tightest hole I’ve ever fucked..! That’s saying something when I’ve been with Koneko, Kuroka, Asia, and all the other girlfriends of mine in our Peerage..! Uuurrghghhh! Time to really go wild now, Naruko-Chan..! You’re going to love me soon enough and crave this out of addiction..! Uun…uuh..uun..uunh..uh..uungh…uunghg…guunngh! You’re such a slut for cumming when I just put it in, aren't you…!?  You’re a wanna be  whore now with how tight your pussy is squeezing around me! Nnh…mnh..mh..ngh..mnghhm!~” Issei yelled out as he began accelerating his pace, making his buttocks row and retract with his cock plunging ever deeper into Naruko’s juicy pussy with every clap of flesh-smacking coitus filling the air. 

His balls swung forth even faster as well, slapping into her ass while scraping the surface of her thighs as Issei dropped his lower body down onto hers in an ever-intensifying display of domination. With each plunge of his cock, Naruko’s pussy would squelch and squirt outward onto Issei’s crotch out of euphoria alone. Her insides flexed and wriggled as her cervix tightly held onto his length while the thick of Issei’s massive meat plunged directly into the girl’s womb repeatedly. Tantric sounds of wet flesh slapping together with more wet flesh became abundant with Naruko, gradually uttering more moans of pleasure rather than pain from the sensation. 

Her body curved upward in response to the rising collisions between both sexes, and her breasts shook around more salaciously than before, causing Issei’s lust to rise like a burning fire as he loved to see gigantic tits shaking for him in the middle of sex. He withdrew his crotch faster and thrust harder each time, sheathing his meat deeply into Naruko’s squirming pussy while Naruto’s mind slowly faded away into a series of female screams of pleasure inside of her head.

“Aaaaahahhh! Ahh..ahh..aaahh..aaahh..aaahh..aahh…aahh..aahhh..aaahh…! Ngghhh! I’m not…a slut..! Or a whore..! Uuaaaaahhhhh! Oohhh…! Nngghhhh! Uuh…uuhh..uuhh…uuhh..uhh..uuahh..aahh..ahhh..! Not…so rough..! Slow down..and c-c-control yourself, will you…?! Raaaaaaahhhh!~” Naruko howled in pleasure with teeth clenched, trying to endure the overload of sensations of having Issei's cock churning her insides like a horse. His cock was just that big and girthy, making it difficult for her not to be overwhelmed as she reached over to his chest in a weak attempt to push him off. Alas, her strength was sapped amid the constant sensation of pleasure flooding through her system and Issei was, apparently, much stronger than her in terms of physicality as he rutted non-stop without slowing down or tiring out.  

He bats away her hands with his right knuckle and reaches forth to grab onto each of her bulbous tits, squeezing them both between his fingers and expertly prodding every weak point he detected when fondling them earlier on. The instant his fingers touched her massive tits while her pussy was being hollowed out by his cock turned Naruko on immensely as she threw back her head to howl quietly in pleasure with her legs trembling around Issei’s sides. Her lips became pursed, and she struggled to stifle her increasingly loud moans while the noise of their crotches colliding together became more intense. Every other second, she’d feel the entirety of his cock sheathing inside of her pussy all the way to his balls, disrupting any rational thought she’d have in that moment. 

“Hmmhhh! Oohhh..your tits feel so freaking nice to grope while we’re doing this..! It's like your body was made to be fucked, Naruko-Chan! Nnh..nnh..nh..mh..mmh…mhhh! I'm betting you're really enjoying the way my fingers clutch your boobs. You really are a whore deep down who just wants a well-hung guy like me to fuck her into submission! Mnh..mnh..mmnh..ngh..nggh..nggh..nnghghh! Our bodies are so compatible that I’ve made up my mind..! I’m taking you with me as my newest lover..and we’ll fuck for the entirety of my stay here in Konoha.! Uuh…uuhh..uuh…uh…uh..uh..uh..uuh..uuuhhnh!~” Issei yelled out as he continued rolling out his hips between Naruko’s legs, enjoying the increasing tightening her pussy’s slimy walls were doing around his cock. It plunged in and out with increasing frenzy, causing the girl to feel gigantic waves of pulsation deep within her womanhood. Naruko couldn’t think about anything else besides the sensation of feeling Issei’s cock burying itself all the way to the inside of her womb, where it thumped against her uterus tirelessly like a stallion.

Her lips were slowly curling into a delirious smile as her eyes started rolling north; she was losing herself as ‘Naruto Uzumaki’ and embracing her new self as ‘Naruko’ with the last vestiges of his former identity screaming at her to remember who she really was.

‘I’m..Naruto! Not Naruko…! I’m the man who’s going to be Hokage one day..! Rrrrghhh! Uuaah…aahh..aahh..aahh..aahh..remember how you are…aaaahhhhh! I’m not.. about to let whatever happened…keep me this way while he has me wrapped around his finger..! Grrnnghmh! No, no,no…don’t give in..! don't give in, Narukooooooo! Aaaaaaaaahhhh!’ Naruko’s thoughts screamed at her as she began raising her waist higher while beginning to feel her legs go numb with another impending orgasm about to wrack her body. She was about to cum hard and likely bring Issei with her when she did. Naruko cast a quick look in the direction opposite of her face to see her reflection in a polished wall close by, seeing only herself as Naruko and no longer thinking she was really Naruto after feeling Issei’s dick pounding the inside of her pussy so much now. “Gnngghmhh! I’m about to cum..! Aaaahhh..!”

“Good! Me too! Mnh..mnh..mnh..nnh..mnhm…mnhmm..mmhh! And guess where it’s going..!~” Issei revealed as he kept his crotch thunderously slamming away into her waist, making her wall shudder tightly around his penis while she was ready to explode in euphoria any moment now. Hearing what he said made Naruko’s eyes widen with alarm as she tried to get Issei to cum anywhere else amid the incessant thrusts of his waist.

“N-no..! You can't..! Not inside! Please..! Anywhere but there..! Anywheerrreraaaaaaahahhhhhh..! Here it comes..! Guugnnnghghh!~” Naruko tried to say before her orgasm overrode her body’s commands, leading to her back arching forward into the sky from the ground while her body trembled with orgasmic release. One that was so explosive that she couldn’t resist making an Ahegao face while squirting heavily all over Issei’s crotch. 

Upon feeling her insides tightening to absurd levels around his meat, Issei grinned viciously as he rolled back his hips and slammed into Naruko’s waist one more time before shuddering with climax. His cock stiffened up and lurched like a beating organ inside the blonde’s womb before dispersing extremely thick loads of sperm directly into her uterus with a smile.

“Mmnghh! Me..too..! Take it all, you ninja slut..! Mmmmmnnghhhmm!~” Issei announced as he let loose a thick torrent of cum deep inside of Naruko’s sex, shuddering loudly with bliss as he felt a backed-up amount flow directly into her body and likely filling up her womb as they came together. Naruko’s toes curled tightly while her legs straightened out into the air. The last vestiges of her psychological identity as Naruto Uzumaki immediately shattered into pieces to be replaced with a new mindset tailored to simply being Naruko Uzumaki, a girl who gladly gave Issei her virginity and permission to breed her with his large cock.

!

‘Gaaaaaaagghhhhhhhh! Ohhhhh…! I’m Naruko now..! Narukooo..! Mmnhhh! I’m so happy to be a woman, to feel Issei-Kun’s cum pouring into me! Nnghhhhh! Oohhhh…yessss..! Yess..yess, fill me, Issei-Kunnnn! Uuunhhhh!~’ She cried out mentally with her eyes rolling up into her sockets while her mouth remained agape with her tongue spilling out. Her entire body shook as the sperm spewing from Issei’s gargantuan cock filled her newly transformed womb to the brim with joy in Naruko’s heart.

Sppllrt….spplrrt…splrrt..pplrrt..splrrt…spplrrt…spllrrtttt…spllrrtrtt…spplrrtt..splrrtt!

 “Nnnghmm! Nnhm! Mmnhmm! Oohhh..there we go..! Another satisfied customer, one who happens to be a babe with big knockers, no less..! Mnhnh…!~” Issei hummed with satisfaction as he finished cumming deep inside of Naruko’s pussy, shuddering a few more times before slowly pulling out of her while watching her writhe on the floor in a post-coital heap. His cock, still erect, came slipping out of her gaping cunt chock full of his sperm as he remained full of vitality. Naruko, on the other hand, was barely conscious as she remained sprawled on the ground with her legs spread and her body twitching every few seconds with that goofy smile on her face. He loved seeing that expression on his lovers as well as the abundance of cum spilling out of their stretched pussies like Naruko’s was doing right now.

“Heheheh….oooohhhh….that…was…incredible…nmhm…!~” She whimpered as she looked down to see a bit of her hymen blood trickle down with the insane amount of semen spilling out of her womb. While Naruko was recuperating and surveying the aftermath of their frenzied romp, Issei smugly grinned as he decided he wasn’t done just yet. 

“Alright, time to change positions." He said, arousing her attention and making the dizzy blonde Ninja look at her with a puzzled look on her face before suddenly feeling his hands on her hips, lifting her up from the ground, and turning her around. Naruko adapted appropriately by placing her hands on the floor to steady herself as she was now placed on all fours with her plump, heart-shaped ass staring at Issei’s face before he pulled back to allow his surprisingly hard erection to slide between her buttocks. ‘He’s still hard..!? You gotta be kidding me..! What kind of insane vitality does this guy have..!?’

“Hehe, I can tell what that look on your face means, and yeah, I can go many rounds before I even get remotely tired, Naruko-Chan. Time to fuck you from behind and watch that lucious ass shake! Nghm!~” Issei said before bringing his left palm down across Naruko’s ass to deliver a slap on her cheeks.

Whap!

“Aahhhh! Ooohhhh…!~’ She crooned blissfully from the pain and bit down on her lip when she felt him suddenly pulling on both of her twin-tails before pulling her back and sliding his cock into her pussy at the same time. He grabbed onto her other hip when doing so, ensuring that he’d go as deep as possible into her womanhood, barely catching her breath before feeling the wind getting kicked out of her lungs by his gigantic dick.

“Ummhffhh!~” Issei grunts as he slides back into her juicy snatch, filling up to the brim again and making Naruko croon pleasurably as her body shakes with elation once more.

Squeeelch!

“Raaaaaaaaarrrrhhhh! Ooohhhhhhhh! Yessss..! Nnghgmmh! Again..! Oohhhhh..Issei-Kunnn! Mhhhh!” She howled, making the young man laugh in victory as he began rolling his waist forward into her butt, causing each cheek to jiggle and shake as he started fucking her all over again. Her buttocks wriggled incessantly as he had started fast and strong, determined to slide every inch if his length deep into her cum-stuffed pussy to stuff it up even more and it was an addictive sensation of the young stud of Kuoh. “Nngh..ngh..ngnh…gngh..nngh..nngh….ngghhh..ooaaaahhhhhh..! Uuuuhhhhhnhh! Issei-Kunnnnnnn! Ooooohhhhh..!”

“Hehe, I love the way you call out my name like that, Naruko-Chan! Nhmm..mhm..mmnhm..mnhmm..mgnhmmhh! Come here!” Issei growled briskly with lust between thrusts just before he leaned over Naruko’s backside and brought his right hand to her hair. He dug his fingers in and grabbed ahold of that blonde mop and pulled back Naruko’s head, keeping his waist rhythmically rowing into her from behind as his cock freshly skewers her aching pussy with even more strength than before. He kept grunting and humping her voluptuous frame, enjoying how supple her figure was and how smooth her skin felt when pounding against him. “You’ve just become another cock--hungry slut now Naruko-Chan..! Nnghm..nh..mh..nnh..mnh..mnghmm…nghh..and I will officially make you another woman in my harem..! That, I promise you..! Uuunnmghhhh! It feels so good fucking your body..! I bet you were glad to be born a girl since you met me and got to experience this cock of mine..!”

Upon hearing his words about being born a girl, Naruko reclaimed some of her original mindset as Naruto and tried to refuse enjoying this sensation as she felt him beginning to rapidly slap her ass with his crotch intense rate. His balls swung heavily as always between her thighs, and his muscular lower half just pounded her rump while she felt each penetration cause her body to shudder with bliss. Still, Naruko tried to reject this euphoria as she attempted to resist having her mind corrupted again, only to feel Issei fucking her harder while she remained on all fours as though she was a common dog.

‘Nn-no---! No, no, no..! I’m…not a girl..! Not Naruko..! I’m Naruto..! A boy….! Aaaaaahhhhhh! Uuahahhh! If he keeps this up, I might just..break..and really will become a part of this ultra-pervert’s harem..! Gnnghh! Must..resist..! I..must..resiiiiiisstt….! Ooaaaahhhhh!~’ Naruko’s thoughts rang out in her head as she attempted to grit her teeth and endure despite the mind-blowing waves of euphoria flooding her body right now. It was as if Issei had a magic cock and it knew exactly where to strike her insides, causing her walls to crumble inward and wrap tightly around his length while the tantric sounds of wet-flesh meeting flesh continued unabated at a high output of frenzy. 

“Mmnghhh! Oohhhh! You’re getting super tight already..! Nngh! I love it..! I love your body..! You’re so ready to join my harem…and get knocked up with my seed, Naruko-Chaaaannn! Uuugnnh! Mgm! Time to pull out all the stops on this one and give it to you as good as I give the others! Hmh..mh..mh..mmh..mmnh..mmnh..mnngh..mgnh..mmgnh..mngnghh..mngghhhhh! You’re beginning to squeeze me tight! Are you ready for it…..? Even if you’re not, I’m going to pump you full of Issei Hyoudou’s genetic material in abundance! Hmnghh!” Issei grunted coarsely as he threw back his head a little, using the strength in his arm to pull Naruko onto his cock as rampantly as he was shoving his dick deeply into her squelching quim.  She was feeling tighter and tighter by the minute while he began to hear her moans border on delirious pleasure again, keeping one side of her waist held as he bottomed out of her with raucous fervor. “Uunngnghhh! So…close now! Mnh..nh..mmnh..mnh..mnnh..mnh….mgnh..mnghhhhhhhh! Get ready, Naruko..!”

“N-no..! No! I must..r-r-r-resist..! Mustn’t allow him…to ruin my mind..and keep me like this forever..! Haaaahhhh! That damned Jutsu somehow became real! I’m really going to become his breeding sow bitch…if I don't..somehow resist this incredible pleasure…! Haaaaaaaahahhhhhhhhhhhh….!~” Naruko muttered breathily to herself as the tantric sounds of bodies clapping together reached its apex with the girl suddenly cumming first, causing her vaginal muscles to aggressively suckle on Issei’s dick enough to make him clap his waist into her ass a few more times with heavy thrusts before shoving the entirety of his dick inside of her pussy and letting loose a thick torrent of cum inside of her womb..! 

“Nnghgmhh! Oohhh…yeahh! Here it comes..! Gnngghhhhh!~” Issei grunted loudly as he tossed back his head, grinding the entirety of his navel between Naruko’s buttocks as he felt his cock rumbling like an organ and pump thick blasts of highly fertile sperm directly into her sex with nothing hold back the rest of it from flooding her uterus!

!

Spplrrtttt…spplrrtt….spllrrtt….spplrrttt…sppplrrrtt…splrrttt…splrrtt…splrrtt..splrrttt..splrrtrtttt!

Instead of an internal wail of agony from Naruko’s mind, formerly Naruto’s mind, the girl let out a blithering wail of euphoria while wearing a delirious smile on her face.

“Yessssssssss! Aaaaahhhhhhhhh! Isssei-kunnn! Knock me uuuppppppp! Nnnghghhh! Ngghhhh! Nngh..mmghmm..mmghm…oohhhhh..yess..! Mngmmhmm!~” Naruko cried out as she felt the immense amount of cum flooding her vaginal channel, filling up her womb to capacity and obviously drowning out the eggs in her uterus to where she felt pregnancy was inevitable. Issei kept his pelvis pumping and rutting between her legs, enjoying how smooth and bouncy her ass felt when twitching repeatedly against his groin for a good couple of minutes now until he was finally done seeding the blonde Kunoichi’s womb in full. Narutko’s legs jolted about a few more times in a last stretch of post-coital flux when he slowly pulled his cock out of her gaping snatch, watching as a thick outpour of sperm came flooding out onto her floor from within. “Guh..!”

Naruko collapsed on her front with her ass still raised high and held against Issei’s waist, breathing laboriously with a faraway look of euphoria ghosting her face.

“Ooooooghhhh….I don't know..if I could do that again. It was so intense…so much….cum inside of me now…mmnghmm! But it felt sooooooo good! Mnnmhmm..” She whimpered quietly and heard the young stud clear his throat a few times to catch her attention, making her slowly turn her head to see the jaw-dropping sight of his cock remaining erect even now. “No…way..! Still…!? How are you still so hard..after all of that…?!”

“Heh, I’m the Red Dragon Emperor, beautiful. There's nothing I can’t do with a little magic and au natural Hyoudou virility. That being said, we’re not done yet, Naruko-Chan. Hehehe.~” Issei chuckles darkly as he eyed her magnificent frame from behind, finding a bit of sadistic amusement in seeing Naruko’s face pale nervously as he gently nudged his crotch against her buttocks some more with his erect spire of a dick remaining as steady as ever when it thrusts out from between her buttocks. 

“Mhmph…..help me…heheheh…~” She said to herself nervously before Issei grinned and reached over to pull the busty blonde Ninja into a new position for another round.

….

*********

Hours later….

…

Sitting back in the middle of the onsen waters again with a smug look of satisfaction on his face was Issei Hyoudou, Red Dragon Emperor and all-around pervert with a colossal dick that he knew how to use to full effect. The scolding waters around his waist were rippling constantly with the incessant bouncing of the blonde Ninja, Naruko, herself as she planted her hands flat on his chest and rolled her hips all over his own in an endless cajoling of sexes as she rode him cowgirl style with a lovestruck smile on her face. Her tits were swishing and bouncing gently from between the waters and in front of Issei’s face while her eyes, once burning with the Will of Fire, now carried glowing little hearts in each iris as she happily smiled at Issei while riding him raw. 

“Ahh..aahh…aahh..aahh..aahhh..aaahh..Issei-Sama..! Issei-Samaaaa..! Haaahhhh! Hhaaahhh! Aahh..aahh..aahh..ahh..aahhhh..! After this round, please fuck me some more..! I need it..! Mmhhhh..! Oohhhh..it's so good! It feels so good having your dick inside me, Issei-Sama..! Haaaahh!” Naruko breathes out as she begins hopping on his lap even harder and faster than before, letting her lovestruck gaze stay on his face while he smugly strokes her cheek before bringing his hand down to fondle her bulbous tits in turns. “Neeedd..more..cum..! I want you to cum inside of me again! And again..and again..! Oohhh..I can’t get enough of you, Issei-sama..!” 

The waters sloshed around more violently with Naruko beginning to ride him even harder now, making Issei groan loudly in satisfaction as he felt her tight pussy beginning to squeeze his dick into her deepest depths while making sure those breasts were right in front of his face. Her identity and psyche as ‘Naruto’ was long gone now, thanks to an accident with Issei’s Magical Field that intermingled with the Henge-No-Jutsu, making Naruto into a real woman now broken in by the man’s dick.

“Mmnggh..nmnggh..nnggh……ngghhh! I’m getting close now..! Again! You’ll get your wish and then some, Naruko-Chan! Guungghh! Come here..and welcome to my harem..! I think my trip in Konoha is going to be wonderful with you around to shepherd me rather than your brother..! Mnnhmh..!” Issei shouted with elation as he reached up to bring her down onto his face, resulting in a messy and very passionate kiss with Naruko closing her eyes and cupping his face while beginning to feel the rumbling of her orgasm through her body. She never let go of Issei’s face as she felt the trembling of his cock when it shot another thick geyser of semen straight into her womb once more, moaning blissfully with her eyes closed and saying goodbye to her life as ‘Naruto the Ninja’ forever. 'Seriously..! This trip is the best thing that has ever happened to me..! First it was with that Naruto guy giving me attitude, and now I’m scoring with his smoking hot sister for keeps! Mmnhm!

“Mnnghmhmhh! sllrrlurrupppp..ssllrlrurrp..ahhh! Issei-Samaaaa..! Haaaaahhh! I love yooouuuu! Mmnhmm..mnhm.*sllrlrp..sllrrlrp..mmhm!~” Naruko howled with elation, forgetting her original identity while instinctively knowing that this change was permanent and that she was likely pregnant with Issei’s child now. The thick rumbling of his cum spewing into her overstuffed womb was a surefire sign of that new step in her life.

And she regrets none of it while going cross-eyed with bliss, savoring the feel of Issei’s tongue rolling around in her mouth.

End of Chapter

To be continued..?