(I know I said a hiatus this week, but I see no reason not to give you guys your content now. Thanks for supporting the story. This isn't the last bonus chapter you'll receive at no additional cost.)
Half the time when Omilaena talked about dicks, she wasn't even half-serious. Sure, she liked a girthy cock, but the lines about bigger being better were ridiculous. She took selfish pleasure in what Kai could do with his transformations, but that had less to do with making a bigger dick than making shapes that tickled her clit while also reaching the perfect places inside.
There was one goal, however, that she was completely serious about even though it was on some level stupid: she was convinced Kai could grow two cocks.
Most of his transformations only shifted body parts that existed, true, but he could easily grow spines, wings, and extra tails. Not all of those were exactly matched to monstrous abilities, either, especially with his passive abilities. As much as she joked that her little experiments with Kai were for his development, she actually did think that it would strengthen him to learn how to use his powers more flexibly.
Obviously that didn't need to involve making cocks, but if she had that option, why not? She was already quite pleased with their tail experiments, and he'd proved able to make armor-like appendages in the right shape. But her ultimate goal was for him to produce two actual penises, ones that were really part of him.
All of this was along way of explaining why she was crouched down in front of his crotch, staring with utter concentration.
"That's really not helping," Kai said with a groan. He played along easily enough, but she knew that this was all a little much for him.
"It's essential quality control," she said with a smirk. She reached out to touch his armor-plated crotch, rubbing the thick spine. "Still too spiky."
"And that is really not helping."
Omilaena held off, because actually getting a result was more important than teasing. Their sessions were often interrupted, either by Zin Nim or by their own desires. But over time, they managed to make some significant progress.
The real breakthrough was the realization that Kai needed to blend elements from monsters and sacred beasts, in precise ways. His human body didn't want to change too much unless he underwent a monstrous transformation, but monsters had no reproductive instincts, so he needed to balance the different aspects.
There were some solid breakthroughs along the way: they managed to find a new monstrous form for Kai, where he still looked mostly like himself instead of being covered in armored plates. The dark chitin across his body hugged his muscles and was softer than normal, and she'd thoroughly confirmed that it was more sensitive than armor. Zin Nim would definitely like that form.
At last Omilaena thought they might have it. In battle mode Kai had a plate of armor across his crotch, keeping the important bits safe, but now they'd managed a partial transformation that didn't lock away the goods. His normal cock jutted up through it, but more importantly the rest of his body was larger, including his hips. They were large enough that there was enough space... and sure enough, a cock emerged beneath the first one.
It was covered by monstrous chitin at first, but when Omilaena reached out to stroke it, the armor began to shift away. That revealed a second cock, a bit unnaturally colored but apparently made of flesh. The shaft certainly felt real in her hands, which she confirmed by grabbing the first one as well.
"How does it feel?" she asked.
"Odd." Kai grimaced and shifted his hips. "My hips are too long, and I can't figure out how it all-"
"You're horrible, to be talking about that sort of thing when your wife is jerking you off." Omilaena pretended to pout, but she didn't stop caressing the two shafts. "I'm serious, though, does it feel right? There's no point to this if it doesn't feel good to you."
"You didn't care about that with the tails."
"Come on, stop bringing that up. What do I need to do to convince you?"
"We could start with some... deeper experimentation."
She smirked at the silly innuendo, but Omilaena had been thinking exactly the same thing herself. A double handjob had never been the goal, after all, so she eagerly shifted into place between his legs. The exact distancing had been a bit of an issue, but thankfully it seemed to be working out well.
When she leaned forward, Omilaena wrapped her tits around the lower cock, then continued forward and sucked the head of the upper one into her mouth. The position was strange at first, and it was surreal to actually be involved in a completely unfamiliar sex act. Both cocks felt good, though: familiar enough and heavy with Kai's masculine odor.
Omilaena quickly got into it, squeezing the lower cock tight between her tits as she managed to get the other into her throat. She couldn't go all the way from that angle, but it was fun to titfuck and deepthroat at the same time. Kai seemed to agree, grunting and beginning to thrust his hips just a little. That helped with the angle and she eagerly moved until he finally exploded.
With both cocks simultaneously: one shot seed down her throat while the other exploded across her chest.
"Fuck." Kai leaned back with a long sigh. "It's twice as hard to hold... you happy now?"
"Oh, we're just getting started." Omilaena smirked up at him as new ideas began to well up within her.
.
..
.
Despite the obvious benefits, Kai was still a bit uncertain what to think about all this. He sat in their bedroom, trying to meditate as if he didn't have two dicks on his crotch. It didn't help that Omilaena was outside, persuading Zae Zin Nim to join them, but he shoved that thought out of his mind.
The hardest part had been controlling himself with double the sensations. It didn't help that he was relying heavily on sacred beast instincts, and animals didn't care about lasting or his partners' pleasure: those instincts just sensed willing females and wanted to seed them as soon as possible. He could have solved the problem by just using armor, but Omilaena was right, that would defeat the purpose.
They'd attempted some other experiments, allowing him to build up a new sort of stamina. Lining up the two cocks for double penetration proved harder than expected, for all that Omilaena did her best to be flexible. Kai thought that it would require a different sort of body structure, and that still didn't come naturally to him, even in combat.
When the door creaked open, he jerked to alertness, and was almost embarrassed that both cocks twitched upright as well. It was as if some instinct knew that his wives were coming in, even though his human mind was worried about how they'd react.
"This..." Zae Zin Nim stared down at his crotch with her lips pressed tightly together. "I suppose it could be worse."
"Trust me, I'll change your opinion about this." Omilaena shifted behind her, encouraging her forward.
"Are you never satisfied?"
"It's because I'm so satisfied with the two of you that I keep trying new things. Come on, don't be shy, it's still him."
Zae Zin Nim knelt down in front of Kai, examining his crotch suspiciously. He had to admit that, as self-conscious as he was, having both his wives there had him rock hard. Seeing their faces so close to his cocks couldn't help but bring all sorts of thoughts to mind.
They had shared him in the past, of course, and he hadn't thought there could be anything better than having both his wives licking over his shaft, or wrapping their breasts around it. But this... he wouldn't say that it was better, but he realized how much he wanted to see both their heads bobbing on one of his cocks at the same time. Or they could each have their breasts wrapped around one, their bodies almost pressed together...
"It looks normal enough..." Zae Zin Nim reached out, touching his shaft gingerly at first, then more confidently. "It feels good, Kai?"
"Feels like normal," Kai said with gritted teeth. "You don't have to if you don't want, but..."
"No, I want to try. And Omi had a good idea." Zae Zin Nim rose suddenly and stripped before pressing herself against his chest to kiss him.
Kai kissed back, letting go of his ideas for double blowjobs or titfucks for the time being. Even though Zae Zin Nim was game, she was still a bit stiff about this, so they'd need to warm her up. Besides, the most likely first experiment would be a modification of one of her favorite positions, which Omilaena had no doubt already suggested.
As Zae Zin Nim began to relax and grind against him passionately, Kai caught glimpses of Omilaena grinning triumphantly behind her. She stripped without ceremony, clearly too eager to indulge herself for anything else. Despite all her claims about other benefits of transformation training, this had definitely been one of her goals.
"I'm ready." Zae Zin Nim pulled back enough to catch a breath. "This part... should be normal."
"You look so good like this." Omilaena kissed her neck from behind as she helped the other woman ease down Kai's chest, lining up his cock so that she sank down onto it.
Except it was only one: it felt strange for Kai to both feel his wife's pussy wrapped around a shaft, but also another one straining urgently in the cold air. Fortunately, he didn't have to wait long before Omilaena dropped down onto the lower cock, then he was fully seated inside both his wives.
That was almost enough to undo him, but fortunately they needed time to adjust as well. This was what had convinced Zae Zin Nim: she loved to mount his hips while Omilaena was against her back, teasing her from behind. Except now, when they adopted the same position, Kai was inside Omilaena as well. When the two women rocked their hips together, they were both grinding around him.
"He's... inside you too?" Zae Zin Nim breathed. She leaned back against their wife, eyes wide as if she couldn't quite believe it.
"Oh, he definitely is." Omilaena chuckled and rolled her hips a little harder. "That's good. Don't get me wrong, I love taking care of you, but this way when you feel me moving, you know its for me, too."
"I can already feel the difference." Zae Zin Nim was blushing fiercely, but she didn't pull away from either of them. "And Kai... you're okay too?"
"Just trying to hold on," he said. He managed to smile at both of them, then reached down: one hand on Zae Zin Nim's right hip while the other reached a little further to grasp Omilaena's left. It wasn't possible to control their movements with just those grips, but they knew one another so well now, they knew what he wanted.
When they all began to move together, Kai was surprised to find that he could endure it. Being inside both his wives at once was incredible, the sensations of their tight pussies making it impossible to concentrate on pleasuring them. But they were taking their own pleasure, and they had one another: Omilaena wrapped her arms around their wife, playing with a breast and teasing between her legs as usual.
The sight of them was just as incredible: he was familiar with the image of his wives together, but having them both grinding in unison on his cocks was something else. Kai slammed his eyes shut to maintain control, focusing instead on the movements of their bodies.
He hadn't realized how good it would feel to thrust and move inside both of them at once. When they used his tails, the thrusts came at different times, developing different sorts of rhythms. This way, the sensations blended together, becoming something that was more than just the combination of the two.
It was impossible to hold on as long as usual, but fortunately he didn't need to. Omilaena came first, so turned on by the new situation that he felt her shuddering wildly around his lower cock. And after she came down from the pleasure, she focused fully on Zae Zin Nim. Kai joined her, rolling his hips so that the full force of his thrusts ground into their wife, and soon Zae Zin Nim moaned out in pleasure as well.
"Now your turn," Omilaena said, smirking from over their wife's shoulder.
"We... we want it..." Zae Zin Nim agreed, leaning back against her and meeting his gaze with warm desire.
Any self control he had remaining would have been utterly demolished. Kai began to thrust into both of them, fucking deep into his wives simultaneously. Their pussies were so wet from their own orgasms, it was too much: he didn't even last a minute before he exploded inside them.
It was the hardest orgasm of his life, his hips bucking almost violently as jets of cum erupted from both his cocks. Kai grabbed his wives and crushed them to his chest, unable to do anything else as the pleasure shook his hips. It seemed to go on and on until finally he was panting for breath, just holding them close.
He felt like he should have said something, but he was too short of breath for words. But as she saw their expressions and they relaxed against him, he realized that there was nothing that needed to be said. They might have a strange relationship, but it was unquestionably theirs.