-Note-Timeline needed some adjustment. Don't think too hard about it. This isn't for the plot. I dropped the honorifics because I find them annoying to write.-Note 2-This is silly, but I always thought UA was a university. That makes this even more of an AU
1.
Izuku Midoriya didn't know why he was running toward the slime villain while the professional heroes stood by. He wasn't sure if it was because it was Kachan. It shouldn't matter; he would try to help regardless of whether it was someone else. Kachan wouldn't ask for help, he was too proud to admit he would need it. That didn't mean Izuku would let him die. If anything, Kachan needed more help than anyone. His temper constantly got him in trouble, but everyone looked the other way because he had a powerful quirk.
Now was not the time to reconsider his friendship with the moron. Time seemed to stretch, each step felt like he was moving through water.
He reached the slime villain and started to rip chunks away. His focus was on Kachan's face to keep his airways clear. The blond boy was yelling his usual string of insults even as the slime villain tried to absorb him.
A strange heat sparked within his chest. His eyes went wide. Was this a quirk activating? It had to be. That doctor had been wrong. The heat spread through his body, then focused on his lower body, more specifically, his crotch. His pants felt tighter with each moment.
How was this supposed to help? What was his quirk? Shovel Cock? Jackhammer Hips? Maybe being quirkless wasn't such a bad thing after all.
"Stop mumbling about your dick, Deku!" Kachan screamed.
Oops. He really needed to control when he let his thoughts escape through his mouth. Izuku focused on removing chunks of slime by the handful. One moment he was fighting to keep Kachan alive only for the villain vanish in a burst of air. It didn't feel like natural wind, it was too focused and tossed him off the slime.
Izuku rolled along the street, then pushed himself to his hands and knees ready to dive back at the slime. He turned to find Nana Shimura standing in the street with her fist extended. His mouth dropped. The tall, curvaceous, muscular woman dressed in a tight bodysuit that showed off her body yet covered her completely. Her white cape drifted in the breeze she had created.
The strain on his pants increased. Something in him screamed to mount the woman right there in the street. He shook the thought off as Nana Shimura pulled Kachan to his feet.
"You're lucky your friend was here," Nana said plucking bits of slime from the boy. "I was on the other side of the city."
"That stupid Deku isn't my friend!" Kachan yelled.
Kachan was yelling at Nana Shimura, one of the best heroes in the world. He was loudly denying their friendship to a pro hero after Izuku had just saved his life. Kachan was right … Bakugo was right. They weren't friends.
She narrowed her brows at the blond before turning her attention to the other boy. He had green hair and was absolutely brimming with nervous energy. It wasn't shakes from the adrenaline high. She had seen the same sort of person many times before. Skittish until things were rough, then they were the one to provide support. This kid could probably have a decent career as a hero depending on his quirk.
"What's your name?" Nana asked the green-haired boy.
The kid stuttered a little, then mumbled something.
"What?" She prompted him once more.
He bowed deeply, "Izuku Midoriya, I hope to one day be a hero as amazing as you!"
She had heard something similar hundreds of times before at least a dozen times in the last week. Usually, she had a standard response about hard work, focus, and helping others. For some reason, this kid shattered all of that. Her cheek flushed red.
"Tell me, Midoriya," Nana Shimura addressed him solely, clearly ignoring the blond. "Do you have time to come to my agency to make a statement?"
"Why would he need to go!?!" The blond screamed.
Did the kid have any volume other than annoying?
"Midoriya," She repeated before he could get distracted. "I would like to take your statement and address your intentions to be a hero."
"He's useless! That deku doesn't even have a quirk," The blond screamed loud enough for everyone to hear.
Izuku usually shrunk at those words. He would mutter something, try not to cry, and then proclaim he was going to be a hero anyway. Then Bakugo would slap him or destroy one of his precious notebooks to make the worthless moron cry.
Instead, Izuku stood straight, "I have a quirk. It activated when I tried to rescue you."
"I DIDN'T NEED TO BE RESCUED!" Bakugo continued in his usual volume.
"Child," Nana Shimura stepped between them. "Asking and accepting help isn't a sign of weakness. Allowing yourself to struggle against an overwhelming force is. You don't want expose how weak you are and how useless you feel. You don't want them to see. Asking for help isn't about being weak. It is about being strong enough to ask." She turned back to Midoriya. "Would you like to come with me?"
Izuku nodded so fast and hard it looked like he was going to bruise his sternum.
"Grab on," Nana offered him her hand.
He took her hand. His cheeks flushed as she pressed him against her. Izuku held tight as she lifted off into the sky.
This wasn't how she usually did things. She either carried the person, or her quirk was able to adapt to keeping two people in the air. For some reason she wanted this young man against her. She had to fight the urge to take off her gloves simply to touch more of him.
Nana didn't invite random citizens to her agency to take a statement. That sort of thing was done by the police. She didn't bother with that side of things. There were people in her agency for the rare occasions that paperwork did come up.
His arms wrapped around her waist tightly. He was too busy watching the world pass in wonder to try and steal a grope. She had rescued people that were a step away from death that still tried to cop a feel. This young man was certainly special.
She was certain he would be a great hero even without a quirk. There were plenty of people out there with practically useless powers. How would looking like a tin-can with legs help people? Can-Do still made it work; they had multiple sponsors as well. It wasn't that different from being quirkless.
"Woah," Izuku whispered under his breath.
Nana smiled. Seeing her agency still gave her that feeling too. Even after all of this time. The building was tall among the others without dominating the skyline. It had a half-dome at the tope that led out into a private balcony that could be shut with a simple command. The spot had become one of her favorite spots. She could stretch out, relax, and watch the sky through a specially made window that kept out the heat and muffled the sounds.
Izuku stared in wonder as they flew through the window rather than waiting for it to open. There was a slight shimmer in the air while they passed. The most notable difference was the temperature. It was nice and cool rather than the edge of summer that the rest of the city had to experience.
Nana stifled a groan as he let go of her and stepped away. She wanted him close.
"Now, Midoriya," She said trying to get herself under control. "I want to commend you for your actions today. You ran to help when even professional heroes stood by." She paused. "You said your quirk activated today?"
Izuku bowed, "Yes, Nana Shimura."
"Calm down," She chuckled. "You can call me Nana when we're in private."
His eyes bulged, "Are you sure that's allowed?"
"It's my name," She answered with a big smile. "You ran into a dangerous situation to save an … ungrateful citizen before you had a quirk?"
Izuku nodded.
"Do you know what your quirk is?" She asked.
His blush washed over his face and didn't stop until his neck was bright red too. Izuku mumbled something in reply. It was too low for her to hear.
"Say that again?" Nana prompted.
Izuku took a steadying breath, "It has something to do with my…"
He motioned to his crotch. Nana raised a questioning eyebrow. This wasn't the first time she had heard the 'my quirk needs sex' line. The kid didn't seem to be lying though.
"Explain," She prodded.
Izuku braced himself, "I could feel it getting bigger, like a lot bigger. There's something else." He paused. "I don't know how to say it. I can feel something is different."
"Hm," Nana sighed. "Let me see."
Izuku squeaked, "What?"
"Take off your pants and let me see," She repeated.
His brain was short-circuited at her words. He nodded as he unbuttoned his pants and dropped them. Izuku knew that his … penis… had grown, but seeing it was something else. It was literally down to his knee. Unfortunately, it was mostly for show. Compared to the rest of him, it looked huge, in reality, it was probably about eight inches. Not a size to be dismissed, but not the prize she was hoping for.
"Well," She tried not to sound disappointed. "It is on the bigger side for your build."
Izuku looked up at her, "What?"
"Your erection," Nana motioned to his crotch. "That is a good size for an adult."
He furrowed his brow, "This isn't an erection. This is just me."
"Oh," She said softly. A playful smile crossed her face. "Let's see how big you are hard."
She leaned over and placed a gentle kiss on his lips. Izuku gasped, inspiring her to push further, invading his mouth with her tongue. A charge sparked where her tongue touched. The energy sped through the entirety of his body. She held his gaze as she took off her gloves and unhooked her cape. His mouth dropped as she ran a finger under an unseen seam. Her glorious breasts were revealed to him inch by mind-melting inch.
A loud thud sounded through the balcony as the enlarged head of his cock slammed into his stomach.
Nana Shimura actually gasped at the sight Izuku's cock. It was incredibly hard with thick veins along the shaft that tempted her tongue. His cock looked to be as long and thick as his forearm. It had easily grown five inches, if not a little more. The absolute shock on his face as he stared at her exposed chest was priceless.
Izuku managed a little noise while his brain was short-circuited. His usual analysis regarding heroes and their capabilities came to a grinding halt at the sight of the heroine topless before him.
She smiled and took pity on Izuku before sandwiching his cock up nice and snug between her tits. She made sure her grip was strong before smothering his cock nice and tight before moving up and down like he wanted. She quickly felt him twitch between her chest like he was close to cumming already. The movements were slow at first just teasing him all as his big cock poked out the top poking her in the chin. Izuku just watched her tits swallow up his cock rubbing him up and down like the world's best hand job.
"I can't hold on the way you keep doing that," He said through moans.
With that said she looked down to bring Izuku's cock into her mouth. Just his burning red crown was sticking out of her considerable bust. Bringing her mouth to his aching tip she swirled her tongue around him while she was still stroking him with as much leverage as she could control. Thankfully, Izuku helped by thrusting up to add even more friction.
Izuku moaned and couldn't believe how good this felt.
"I'm close," Izuku warned as his hips moved faster.
He was in love with this feeling and it was a shame they couldn't do this every day. Logically, he knew she was a professional hero with more important things to do than give him a tit fuck. His brain didn't care about that right now. He just wanted her on her knees in front of him working his cock with her breasts all day.
She could feel his cock twitch and get ready to explode as his hands soon found her head to keep her sucking the tip. Something about cumming on her tits, or in her mouth, felt wrong. It belonged in her pussy, but she also wanted to know what he tasted like. She decided swallowing was a decent compromise.
Nana soon felt Izuku paint her mouth white with rope after rope of molten hot cum built up in his hefty balls after her smothering tit fuck. Her continued ministrations sucked his cock clean the best she could. At points she even wanted to go deeper but didn't want to have Izuku get carried away and fuck her throat. It had been much too long since she had done that, and her last partner hadn't been nearly as big as Izuku.
He moaned enjoying her suck his cock clean. She pulled away from him with saliva trails bridging between her mouth and his cock.
Wiping her mouth she stood up. She looked at Izuku with his cock still standing at attention ready for more.
Nana stripped out of the rest of costume, "It's been a while so you will have your work cut out for you. I might be a little backed up and I might tire you out. Do your worst."
She acted as if that would be a herculean challenge, but from what she could see it wouldn't be. Someone like Izuku seemed like someone who had everything to make her cum over and over again. His cock was already back to its full hardness. It was sure to hit the right spots.
"Yes, ma'am," Izuku replied seriously.
Neither of them knew where he got the strength as he stood on confident legs. His arms barely strained as he picked her up and carried her over to the patio set. He lifted her up, so she was sitting on the table at perfect cock height. He pressed against her, rubbing the length of his cock along her lower lips for some extra lubrication. The heat from her slip slid against the underside of his cock. He teased her for a second before he adjusted his angle. Izuku brought both hands to her nice and full tits before he abruptly thrust in with all twelve inches making her see stars and nearly cum with just one thrust.
Nana Shimura moaned at Izuku's cock easily penetrating her body roughly and deeply. Her wet soaking pussy put up no resistance clearly wanting this rough and hard shag more than she thought. Izuku was much deeper than she could ever imagine with his cock breaking all of her limits. He easily hit the back of her unsuspecting cervix. The sensation was one that she hadn't had in years. Now it was almost being punched by his cock.
"Fucking hell! So big! So good! Fuck!" Nana Shimura moaned, feeling her body tremble helplessly in Izuku's control.
Clutching onto him she just waited for more, not even wrapping her legs around him to try and stop him. She wanted to feel every thrust at his full strength. Nana kept her legs spread and inviting as Izuku started to really go at her wet and willing little slit.
Izuku smiled as he pushed inside once more as his hands found her hips, "I lost count of how many times I fucked you in my dreams over the years."
"Give it to me. Fuck me harder than in your dreams! Prove to me this was worth it!" Nana urged him on hoping it would send him off into a frenzy.
She was ready and didn't care how rough he could be with her. His strength had already been a pleasant surprise, now she wanted to see what else he hid. He could try to wear her out to the best of his ability; she could take it. She didn't want to think about how long it had been since she had a good fuck.
It seemed to work as Izuku sped up his thrust while also grabbing her hips so hard it would be sure to leave hand shaped bruises tomorrow. The sounds of their sweaty skin slapping drowned out all other sound which wasn't much besides.
"I'm cumming!" Nana Shimura was pushed to the edge in under two minutes of Izuku's full force thrusts.
She could feel his big full balls bounce off her ass and she just hoped he would join her soon enough because she was craving a cream pie from those big balls. The same ones that she wanted to squeeze every last ounce of cum out of. She had watched him spew an impressive amount of cum today and keep shooting more, never once giving a disappointing sized load.
"Cum in me Izuku. Claim me, make me yours," She moaned with a tone that bordered on madness.
Izuku couldn't resist a request like that and kept thrusting trying to build his final few hard thrusts sure to make her lose every bit of sense. She smiled feeling more than just lust as she the strange spark of her earlier interest settle into devotion. Izuku grazed her cheek with his fingers directing her lips to his. This kiss wasn't as rough or as desperate, it was almost loving. The contact made her heart flutter.
"Oh, fuck. Fill me up," Nana Shimura moaned as the big load of his spunk began to overfill her womb.
Her womb was rapidly filled with enough cum to get any woman pregnant. Izuku quickly went back to thrusting inside Nana Shimura with all of his strength, sure to remind her no one could ever hope to match him again. Izuku wanted her to only think about him and his cock that was buried inside of her. He had no idea where this sudden burst of strength and stamina had come from. Izuku certainly wasn't going to complain.
Izuku took a deep breath to steady himself. He adjusted his grip on her hips, pulled out of her, then spun her around so she was face down with her ass facing out.
"Oh!" Nana breathed out more out of shock than the contact with the table.
"Don't worry," Izuku hilted his cock back into her. "I'm not done yet."
Her eyes widened as his hips began to slam forward. The crown of his cock seemed to reach deeper with each thrust. Her mind was turning to mush with every passing second of his attack. A fuck drunk smile crossed her face as another orgasm roared through her body.
§
"Is that the time?" Izuku gasped.
Nana was spread out on her back. The table had long since been smashed. As had the majority of horizontal items on the balcony. Neither had paid enough attention to the obvious improvement to his physical capabilities. He manhandled Nana Shimura like she weighed nothing after the first hour.
"Do you have somewhere to be?" She giggled.
Izuku hurried around the room trying to find his clothes, "I need to go home. My mom is going to be worried sick."
"Oh," She nodded in understanding but couldn't form a solid thought. "One of my people can drive you."
He froze partway through putting on his pants, "Really? You'd do that?"
"I need a shower before I fly you anywhere," Nana rubbed her belly that was currently pumped so full of cum that it made her look a couple months pregnant.
Izuku sniffed himself then nodded, "Right. Shower. A shower would be good."
She gradually got to her feet. A little laugh caught in her throat as she felt the warmth flowing down her legs. There was no way she wasn't pregnant. That thought shouldn't make her so happy.
Izuku hopped toward the elevator as he got on his shoes. His shirt was buttoned crooked and his jacket was rumpled. The pants were still tight even with his cock relaxing. One of his socks had vanished. None of it would matter if he didn't get home soon.
A very confused office worker met Izuku at the elevator in the lobby then to a car. He bounced in his seat with nervous energy. Thankfully, the driver had put him in the back seat where there was a barrier between the two sections. He would have either driven the poor worker crazy with his energy or overpower them with the smell of sex. Not that he knew that. A couple hours of fucking a world class heroine didn't change the fact that he was, for the most part, completely clueless to such things.
"Thank you," Izuku yelled as he hopped out of the car the moment it came to a stop.
He made it to the front door and had the key in the lock before it opened on its own. His face was still angled down with his hand extended to put the key in. Two sets of familiar feet rested in the edge of his vision.
Slowly, he looked up to see his mother, Inko Midoriya and her friend, Mitsuki Bakugo, staring at him. His mother had red puffy eyes while Mitsuki swapped between worry and being upset. Unlike her son, Katsuki, this boy was sweep, thoughtful, and smelled absolutely delicious. She shook the thought free from her head, the horny part of her brain was too loud at the moment.
"Izuku!" Inko Midoriya launched herself at her son.
He caught her easily, rather instead of falling into a pile of flailing limbs. His brow scrunched for a moment as he remembered the brief flashes of spinning a much taller woman around without an issue as well. Maybe his quirk was more than just a big dick? Further testing was required.
"Where have you been?" Mitsuki asked with her arms crossed.
Izuku tried very hard to focus. It was much harder than it should have been, but Inko's breasts felt amazingly smooshed against his chest. His hands had instinctively went to her hips with a slight squeeze of her bum.
"Nana Shimura took me back to her agency for an interview," Izuku answered with no reason to lie. "She had one of her people give me a ride home too."
"For three hours?" Inko sobbed.
She moved a step back. Her hands began to pat him down to make sure he wasn't hurt. There were so many times that her boy would come home with bruises. His clothes were a mess, his hair stuck out at odd angles held in place with some unknown liquid, and he looked like he hadn't slept in days.
"It was a very thorough interview," Izuku replied with a serious nod.
Mitsuki narrowed her eyes at him. That sounded like there was more to it than simply an interview. She sniffed the air once more. The urge to lick to sweat from Izuku's neck surged back even stronger than before. She forced herself to focus.
"Why do you smell like sex?" Mitsuki asked.
Izuku's jaw dropped at the question. Inko turned to face her friend.
"Mitsuki! Watch your language," Inko sounded absolutely mortified.
"Inko," Her voice was steady. "Smell him."
Inko glared at her friend before turning to her son, "Sorry about this."
She sniffed him. A quick sniff turned into a long, deep inhale that made her moan. Her hands gripped his shirt as she turned around. Izuku followed behind as she dragged him through the living room. He kicked off his shoes on instinct before they hit the actual floor.
"Mom," Izuku tried to reach her through her sudden intense focus. "What are you doing?"
"You smell, Izuku," She didn't bother looking back at him. "You need a bath."
His mind was still trying to figure out what she meant by that to understand how Mitsuki knew he had had sex. All this to say he didn't realize her intent until they were standing in the bathroom. Even then, he was confused until she already had his jacket and shirt off.
She had him bend down so she could get his hair wet. A moment later a loud 'splat' echoed through the small room as she covered his hair with soap. She had the soap rubbed in to the point the bubbles covered his eyes. If he could see, he would have seen his mother drop to her knees in front of him. She stared at his crotch with near reverence. Her hands moved on their own undoing the zipper and removing his pants with a couple of hard tugs.
The floor was cold on his feet. He was correct, one of his sock was missing which meant he only had one newly soaked sock left to kick off. Inko moved in a hurried manner that was faster than it should have been. The subconscious use of her quirk helped moved things along. Izuku let out a little 'eep' as he felt hands begin to wander around his chest and torso. Her nimble fingers traced the freshly formed hickeys, scratched, and bites.
"My poor boy," Inko whispered.
He froze as he felt her lips press against one of the hickeys. She moved to the next, placing a gentle kiss on each. His focus was totally on what she was doing. The soap covering his eyes made him rely on his other senses.
"MOM!" Izuku yelled as her as her hands started to lower.
Inko shook her head as though coming out of a haze. She realized where her hands were heading.
"I'm so sorry, Izuku," She burst into tears running to hide in her room.
"Oh my," A soft voice spoke from the door.
Izuku looked over to see Mitsuki staring at him from the door. She had followed them deeper into the house to the bathroom. Mitsuki was an outspoken woman. She didn't mince words or hold back her thoughts. Seeing her speechlessness and blushing was adorable. He felt his erection roared to life.
She watched him with focused, intense interest. She let out a sharp sigh as he got to his feet. His impossible monster cock pointed at her, almost like it was claiming her right there. A feral, hungry smile crossed the face of the sweet boy she had known for years. He sprang at her. She let out a scream of shock before running down the hallway while giggling like mad. The chase was on and she was loving every moment.
Mitsuki was in charge in her relationship. She got sex when she wanted sex. Her husband was a glorified dildo in the bedroom. The situation had gone off the rails now. She was being chased through her friends' house by a naked, horny young man.
She looked over her shoulder to see where he was. Her footsteps slowed when she didn't see him. The laughter stalled in her throat.
"Izuku?" She called.
"Got you," Izuku whispered from behind her.
Mitsuki squeaked in shock. She jumped slightly at the sound. Izuku took advantage of the moment she was in the air to snatch her off her feet. Her limbs flailed at the sudden shift in her perception. A minute of scrambling later had her legs up on his shoulders while her hands were behind her desperately holding on to the edge of the couch.
She could feel the heat from his third leg through the fabric of her pants. It was only sheer luck that she hadn't worn a skirt today. She had no doubt he would have already been balls deep in her if she had. Why would she want to stop that?
Mitsuki's eyes went wide as her pants undid themselves. She watched in awe as Izuku directed her clothes from her body with a casual use of Inko's quirk. Further focus on such observations vanished as she twirled around until she found herself bent over the back of the couch.
She let out a long, shuddering moan as Izuku slammed his hips forward. Her eyes rolled back in her head as he reached deeper than any man had ever dreamed. The slap of flesh on flesh filled the room. They picked up speed and were joined by the protests of the couch she was perched on. Her voice went from a low moan to a high pitch scream then back again a few times. Each peak marked yet another orgasm. This was like any sex she had ever had. Finding someone that could give it to her hard and fast had been difficult when she was younger. She had given up after all this time as a married woman. Mitsuki had never considered cheating before today. Now she wanted to profess her love every time the head of his cock kissed her cervix.
"Izuku," She managed to whisper. "I love you … I love your cock… please don't stop… don't ever stop."
"MOM?! MISS MIDORIYA!?" Bakugo yelled as he entered the house. "IS DEK… Izuku HOME YET? LET'S GET THIS STUPID APOLOGY DONE."
Anything more he would have said ground to a halt as he took in the scene before him. Izuku had his mother bent over the back of the couch. The bastard hadn't stopped his thrusting. If anything, he sped up.
"Bakugo," Izuku met his eyes. "How did you get in here? Did we leave the door open?"
"WHAT ARE YOU DOING?!" Bakugo's voice cracked as he yelled.
Izuku gave on final, hard thrust until Mitsuki's pussy was stuffed. She bucked with as rope after hot rope of cum filled her. Her loud moan made Bakugo stop talking.
"What did you say?" Izuku asked as his breathing started to calm down.
"I ASKED YOU WHAT THE FUCK YOU THINK YOU WERE DOING?!" The blond screamed.
Izuku slowly pulled out of Mitsuki. He watched as a glob of his cum dripped from her pussy.
"I'm pretty sure we just made you a sibling," Izuku said before he smacked Mitsuki's sumptuous, upturned ass.
"Katsuki?" Mitsuki's eyes lazily searched the room. "What are you doing here?"
The blond opened his mouth to speak. Words escaped him. For the first time, there was a beautiful moment of silence instead of yelling more. He couldn't stop watched the cum slowly running along her legs.
"I… you… mom?" Bakugo finally managed.
"Go home, Katsuki," She waved toward the door. "I need to make sure Izuku accepts your apology."
Mitsuki turned around to sit on the couch rather than bent over it. She reached out and began to massage Izuku's impressive balls. Izuku let out a moan as she nuzzled his sack. She gently covered his sack with kisses. Eventually, she stopped after another moment of layering his balls with attention.
"Why are you still here?" Matsuki asked. "Go home, Katsuki. We'll talk about this more when I get home."
Bakugo didn't know how to process the scene in front of him. His brain didn't want to accept it, but his eyes weren't lying. He yelled something unintelligible before fleeing the house.
"Are you ready for more?" Katsuki reached out her legs in an attempt to trap him.
He slipped under her legs until they were set perfect on his shoulders. This was a position he had seen in a few of his favorite hentai. He grabbed her ankles as he began to hammer his cock down into her. The mating press felt even better than he had dreamed. She let out an ear-piercing scream as he hit a sensitive part deep inside that she didn't know she had. Her legs shook against his grip as the biggest orgasm yet ripped through his body.
Izuku's moan was last in the mixture of her voice and the sound of their bodies meeting. He deposited another large load directly into Mitsuki's womb. If she wasn't pregnant before, then she definitely was now.
Mitsuki's voice cut out a moment before she went limp under him. Her eyes were shut tight and her breathing was already deep. He had fucked her unconscious. It felt like quite the feat especially since he hadn't ever had sex when he woke up this morning.
Now he just needed to direct this post-nut clarity to the multiple interesting signs that pointed to a secondary part of his newly awakened quirk.