Work Text:
"Koutarou, I'm scared I might hurt Kenma…"
They were sat in Tetsurou's nest, the late morning sun shining through the window that Tetsurou naturally gravitated towards the warm spot on his nest. Akaashi was at work, Kenma went back to sleep after breakfast since he stayed up streaming and Koutarou flew over as he typically did these days. Having his collar and microchip meant he wouldn't get in trouble with authorities, but he still managed to avoid being seen as he glided high above the clouds.
"Why?" Koutarou tilted his head like the owl he was, his soft white and gray wings were folded against his back. He reached out to take Tetsurou's hand, a comforting gesture that eased the tension in Tetsurou's body if only a little.
"I have these… nightmares about… before, just a blur of our past jobs and the people we killed… and sometimes Kenma's face pops up and I can't stop myself, I— I can hear him in my head when I kill him," Tetsurou murmurs, his tail wraps tight around his body as his ears lay flat on his head, "… and there's these urges too, they show up out of nowhere, the beast inside of me that wants to… tear someone apart, but I don't want to, Kou! I never want to go back."
"I've had those thoughts too, it's okay," Koutarou squeezes his hand as his thumb caresses the top of it, "they kinda stopped after I went to Osaka and dealt with all those assholes, but sometimes they still come up, the violent urges."
"What do you do about it?" Tetsurou was desperate for any answer, he'd run away and dive into the ocean with a cinder block chained to his ankle before ever laying a hand on his master. He thought the nightmares had quit coming, but they made a grand return after Atsumu and his group blew up their old compound and everything came rushing back to Tetsurou's mind.
The assassinations, the days of brutal, nonstop training, the rampant abuse by his former masters… they only ever saw him as a tool or a thing to be sold to perverts. His only solace was in Koutarou, his lifelong partner that he went on countless mission with, he could get through all of pain and torture as long as he was with Koutarou at the end of the day.
But he'd been with Kenma for months now, almost a year possibly? His life was radically different in comparison and he loved his master. There were no beatings, Kenma never screamed at him, he spoiled Tetsurou with all sorts of toys and treats and affection. And he was so, so gentle with Tetsurou on his heat, the feline still thinks on it from time to time and can't wait for his next heat so master will devote all his attention to him.
"Keiji took me out to the countryside… far enough away from civilization so I could safely blow off steam without hurting myself or breaking any of his things," Koutarou said with a small snort, "I thought about bringing you with me, but I wasn't sure if you were experiencing all that… and in Osaka there were other hybrids to spar with, so that helped a bunch too!"
"Sparring…" Tetsurou thought on it, they used to do that quite a bit just to kill time in between missions, it's definitely one of the ways he leveled up his combat levels to be the elite former soldier he was today, "… you're sure no one would see us?"
"Yeah, it's way off in the middle of the forest really… master would bring his book sometimes to read or write stuff while I was off punching trees and fighting wolves," Koutarou grinned, his wings fluttered a bit from excitement, "we could go together, just us… or invite our masters too? Maybe Osamu would wanna join…"
"Just us, I don't want Kenma seeing me like that," Tetsurou said, Kenma would probably get scared if he saw Tetsurou's true animalistic form and his raw power, "and… maybe you can show me what goes on in Osaka?"
"I'd love to!" Now Koutarou's wings were unfurling, the owl could hardly hide his happiness, "the only rule is don't kill your opponent so literally anything goes, but you're almost as strong as me so you'll wipe the floor with those scrubs!"
"Almost? Just tell me who had the highest tally of wins in our spars?" Tetsurou nudged at Koutarou's shoulder with a small smirk. The memories flashed back in his mind, Koutarou was bigger with much more muscle and weight, but Tetsurou always had him beat with speed and agility. Plus brains.
"That barely matters when you can't slither your way out of getting pinned down!" Koutarou then pushed Tetsurou's chest and well… now it was on as it took mere seconds for them start wrestling. They'd been holding back all this time, the barest hints of their sheer power under the veneer of their play fights and rough housing, but the thought of being out in the woods…
Letting loose with his primal instincts…
The two of them rolled around until Tetsurou wound up on his back, surrounded by a mess of clothes and blankets, staring up at Koutarou with a feral grin. He should flip the owl hybrid off of him, go on the total offense with his claws and fangs out, tear his fragile throat open to taste his blood. But the owl ducks down, his golden eyes locking with Tetsurou's for a moment before their lips meet in a soft kiss.
Not their first… no that was last month shortly after Koutarou came back and Tetsurou couldn't help himself while they were cuddling. He liked kissing his master, he wanted to kiss Koutarou… and so they did. He was different from Kenma in every way, a little more demanding, dominant, sloppy and excitable like a puppy.
Nevermind how Koutarou managed to make Tetsurou feel so small underneath him.
He really liked making out with Koutarou, liked those huge hands pushing under his sweater, liked how Koutarou would roll his hips so Tetsurou could feel his fat cock. He still loved his master more, all the lewd things they'd do together and the range of toys… but with Koutarou it was for fun, it felt good with his best friend.
"Pretty kitty…" Koutarou would murmur in his ear as his hand slid downwards, under Tetsurou's waistband and into his panties. Now that Tetsurou knows what it's called, there was always sexual tension between them, but with everything else… Tetsurou was trained for anything sexual to hurt. He didn't want to chase that.
Kenma reversed most of those icky feelings… and Koutarou may have been a little rougher, but Tetsurou enjoyed his touch as well. Thick fingers slipping through his damp folds, circling around his wet hole before steadily pushing into the knuckle, Koutarou was a greedy to swallow down his moans.
"Koutarou… more…" Tetsurou would plead, his pants hanging off from his thighs and an obvious bulge between Koutarou's legs. He's only ever had Kenma inside of him, they haven't went beyond Koutarou fingering him… and sometimes using his mouth. Tetsurou would never say no to Koutarou though, he trusts his best friend… wants to know what it feels like to be fucked by him.
"I've got you, princess." Koutarou only pulled away to push his sweats down enough to get his huge cock out, much bigger than Kenma's. Tetsurou tossed off his own pants and invited Koutarou to lay between his spread legs, a soft purr rumbled from his chest. Their lips met again and this felt like the lazy morning sex he'd have with master, Kenma awake enough to slide into and fuck him as they made out.
Koutarou thrust himself in with little hesitation, he grabbed for Tetsurou's sweater to push it up, wanting to see his cute tits. Tetsurou was happy to lay there and take the pounding as Koutarou sped up, his wings fanning out behind him and making him look even more imposing… sexier.
"Tight as Keiji… fuck, wish I did this sooner…" Koutarou held onto his hip with one hand and used the other to grope Tetsurou's chest, obsessed with pinching and tugging on his hardened nipples. Tetsurou was just thrilled to be full, stuffed with Koutarou and used by him, made the restlessness in his body simmer down when he could submit so easily.
"You make the cutest noises, didn't know you could moan so sweetly." Koutarou mused, dragging his cock out then slamming it in for Tetsurou to whine his name. Over and over, Koutarou hit the right spot to have Tetsurou's hips and back arching off the bed as his voice only got louder. Koutarou chased those noises, grinding his cock deeper in Tetsurou's cunt, delighting in how wet this kitten was for him… such a little slut.
"So good… keep going, don't stop…!" Tetsurou scrambled to grab for Koutarou's shoulders, his claws ripping at the black fabric of his shirt. Koutarou groaned from the pain, but that only fueled him as he pounded harder into his tight hole, Tetsurou wasn't holding back at all with his moans.
"Inside, come inside…" Tetsurou begged and Koutarou already had a one track mind, that just gave him more motivation to rock into Tetsurou faster, being selfish about his pleasure. Tetsurou liked it though, as long as Koutarou was happy, filling him all the way up to the brim with his hot seed… Tetsurou purred even more as his claws scratched into Koutarou's shoulder blades.
"Mmm… Tetsurou…" Koutarou kissed his cheek and neck, "… lemme eat you out."
Tetsurou would never opposed to that, he fell back on his nest as Koutarou scooted downward, eyes locked on his pussy dripping with his semen. Tetsurou rested his hand in Koutarou's hair just as the door opened and revealed a very drowsy Kenma.
"… This is what happens when I leave you two alone…" Kenma grumbled as Koutarou peered over his shoulder with a sheepish grin, "Rintarou would be right…"
"Are we in trouble?" Tetsurou so innocently asked.
"You woke me up from my sleep, be quieter next time," Kenma's eyed darted between the two hybrids, "… finish what you're doing and we can talk when I'm proper awake."
Koutarou gave him a thumbs up that Kenma simply blinked at as a yawn escaped his mouth and he wandered off. Koutarou wasn't shy to get back down to business and Tetsurou was writhing soon after from his skilled tongue and fingers…
He wishes master stayed to see how good he's being.
"Master!" Tetsurou moaned, rocking his cunt down on Koutarou's mouth and within moments his favorite pudding head was popping up in the doorway again.
"Stay… please?"
It was adorable when his master was still overtaken by sleep, but he stepped into the room and got a much better view of Koutarou tongue fucking his pretty hole. He then climbed onto the nest and snuggled up next to Tetsurou, letting his hand rest on his tummy.
"You liked Kou fucking you?" Kenma's voice was heavy with sleep, but intrigue as Tetsurou eagerly nodded, "you were a good kitten for him?"
"Yes, master… I- ah!" Tetsurou whined as Koutarou's tongue licked deep into his core, hungry to devour his slick and his own seed that he pumped into the feline.
"Keiji's gonna be so pissed he missed this," Kenma let out a soft chuckle, but he seemed content to watch his cute kitten get taken apart by Koutarou, "gonna let me fuck you next?"
"Please, please, want you master!"
"We'll see how many orgasms Koutarou can wring out of you, hm?" A challenge that the owl was absolutely willing to take head on, "earn master's cock since you're so needy for me."
I can do that… I can please master!
The cool earth on his bare feet and the looming canopy above had Tetsurou connecting to the beast that lingered in his bones and every inch of his body. That's just what they all called it back in the lab, once they broke you down and reconstructed you in their vision, controlling your behaviors through the microchips. All the hybrids who escaped or were sold off alive still had remnants like shattered glass in their minds, stepping on them would only trigger that monster and send you into a blind rage if you weren't careful.
Tetsurou knew the signs too well, he'd seen other hybrids fall into psychosis or break out into mania because they were too mind broken in the end. He couldn't tell you how he survived all those years under their boot, was it only by Koutarou standing by him? Their other friends? Sheer willpower that there was more outside of those walls and the blood they were forced to spill time after time.
The lives that Tetsurou ended, the blood lusted thrill that was creeping in through subconsciousness, did he miss that previous life? No, it's just the only thing he knew of since birth… and Kenma, he was always safe to be around, so why would Tetsurou ever want to kill him? Would the hunger last for a lifetime… would he have to stay away from Kenma in the future?
No, no… he can fix it. He loves his master.
As much as Tetsurou wanted it to be the two of them, Akaashi and Kenma insisted on coming nonetheless and Tetsurou can't say no to his master. Kenma reassured him that he wasn't going to scare him away or send Tetsurou off somewhere, this was another part of the hybrid that they had to work on together. Tetsurou definitely gave Kenma a bone crushing hug and kissed him until he was breathless.
Koutarou was just across from him, dressed similarly in a loose tank and shorts, despite the chilly late February weather. Both hybrid always ran hot and given their… enhanced modifications, only extreme temperatures truly affected their bodies. Tetsurou should probably write down a list sometime, all the experiments, drugs pumped into them, the excessive training that turned them into elite killers.
Tetsurou would've been happy repressing it all, but his body wouldn't allow for that.
"You ready?"
"… Yeah, don't hold back, Kou."
Koutarou grinned back him, his golden eyes feral before launching towards the feline and Tetsurou's body moved on muscle reflex, shielding himself to defend from Koutarou's razor sharp talons. That's when it all kicked in, like a sleeper agent waiting for the exact moment to act, Tetsurou's battle hardened instincts woke and the two former soldiers were focus entirely on getting the other to yield.
Punching, kicking, clawing at each other as Tetsurou sank his sharp fangs into Koutarou's forearm and the owl shot off into the messy canopy above, attempting to shake him off. Tetsurou let out a pained groan as he was smashed into a tree and finally released Koutarou's bloody arm, but the copper taste had his hazel eyes bright and starving for more.
If there was one thing about Koutarou, he was never one to back down during their spars so he was in Tetsurou's face almost immediately, slugging it out as if he feline hadn't tried to rip his arm off. Adrenaline pumped through Tetsurou veins as his physical attributes shifted into his bestial form, a werecat some would call it in the manga that Tetsurou picked up. Although, the full moon wasn't really involved…
Nonetheless, Tetsurou grew bigger, his arms, shoulders, and chest were hairier and Koutarou had to avoid his giant maw before another limb was at risk of getting torn off. They darted around the forest, catching each other and fighting covered in blood and dirt and all sorts of scratches and bites, it was messy and so violent, their masters were probably worried. But Tetsurou… he was having fun, he was pent up for months on end and having an outlet in Koutarou was doing wonders for the anxiety that'd been building inside of him.
Kenma would never, ever be a target of his aggression.
... Right?
Koutarou was built to withstand it all, he could push back and match Tetsurou blow for blow without either having to worry. In the past they could spar on and off for hours, keeping counting of their wins, knowing exactly how the other functioned on a cellular level. That's why they were the top tier team, called by shady fuckers all over the world, militaries, CEOs… and it's only by some miracle the government hadn't discovered and stolen them right back.
They were all so fragile too... just like Kenma. Easy to scoop up and crush his throat. Bash his head into the wall. Hold him under the water...
"… That's enough playing around."
Tetsurou heard his voice from above before he was smashed onto the ground, chest first with Koutarou's hand stiff around the back of his neck. Tetsurou attempted to buck him off as Koutarou laid his heavy body on his back, he could feel Koutarou's hard cock rubbing against his backside.
"What are you doing?" Tetsurou hissed, still struggling beneath him, Koutarou was like a fucking boulder that wouldn't move, Tetsurou needed to fight back, needed to kill.
"You're too far gone, I need to rein you back in." Koutarou sounded too serious for his liking, if he could just— oh. The hand on his neck squeezed a little tighter as Koutarou hooked a finger into Tetsurou's waistband and tugged down his shorts just below the curve of his ass.
"Koutarou…" Tetsurou whined, there was a huge part of him that still wanted to fight, had to rip Koutarou to shreds, plunge his claws into his fucking chest, "let me go, I can control it!"
"I know you much better than you know yourself, Tets," Koutarou casually replied, pushing two fingers inside of his cunt, causing Tetsurou to growl in frustration. His tail whipped at the air, trying to smack Koutarou's face, but at the same time his innate need to please was bubbling up. He could submit… he can be good…
"Can't risk you going after our masters," Koutarou swiftly fucked in a third, the urge to fight it was dying down within Tetsurou, "good boy."
Tetsurou hissed again, the haze was beginning to fog up his brain, he thought of Kenma holding him down like this and praising him. Master, my alpha…
Koutarou didn't spend too long fingering him open, satisfied enough as Tetsurou stopped growling and trying to throw him off. The push of his cock head sent a wave of pleasure and submission through the feline, why should he fight when Koutarou will stuff his needy cunt? It was easy to hike his hips up a little more, arch his back for the owl fucking quickly into him on the forest floor.
"Knew you'd give in to my cock, such a slutty kitten." Koutarou drawled in his ear, there were the slaps of skin on skin and Tetsurou didn't care about his knees digging into the dirt and how bloody he was, he just needed this.
"More, more… please, please, please." Tetsurou chanted. The hand that was holding him by the neck was removed, soon replaced by Koutarou's teeth sinking into the juncture between his neck and shoulder. His fangs only increased Tetsurou's pleasure tenfold, having Koutarou hold him down by his teeth and fucking him like a wild dog.
If only Koutarou could knot him…
That thought was swiftly brushed aside when he let out a high whine, Koutarou snuck a hand between his legs to play with his clit and was driving into him so roughly, Tetsurou was gushing on his cock within moments. The owl gave a few more thrusts, unlatching his sharp teeth from Tetsurou and leaving a deep bite mark in his wake.
"Back to normal now?!"
"… Mmm… you know, there's several other techniques to make me lucid," Tetsurou murmured as he felt Koutarou still rocking into him, his own hips pushed back, "or were you just that horny?"
"Yes," Koutarou gripped his waist and chased his own orgasm, groaning under his breath as his cock pulsed and he spilled his seed inside of the feline, "I was always this horny when we sparred! But I didn't know what to do about it."
"Ridiculous…" Tetsurou snorted as he crawled away from Koutarou and felt so dirty… because he was. And now he was exhausted. And sore. And there was come running down his thighs.
"I feel like you could have tried harder though, if you really wanted me off of you."
He should have slapped Koutarou's cheeky smile off of him, it's not his fault he's weak once cock gets into the equation…
"Let's go find our masters, I'm sure they think we killed each other."
"I knew you were a walking weapon, but…" Tetsurou felt Kenma placing another patch of gauze on his lower back, "… it's kind of a trip seeing it in person."
"Did I scare you?"
Kenma was silent for a moment, Tetsurou wished he could see his face, but what if master was scared? Mad at him? Horrified? Wanted him gone?
"A little," Kenma admitted just as he patted the space between Tetsurou's fluffy ears, "as long as you feel better though, I'll be here to patch you back up whenever you have to fight your inner demons."
"… Hopefully not anytime soon," Tetsurou purred as Kenma petted him, "I can't promise I'm… stable… but I'll never hurt you."
"I know you won't."
Kenma's lips were soft on the nape of his neck as his arms wrapped around Tetsurou's middle. And that's why he loved Kenma, just a few words could lift all of Tetsurou's worries from his shoulders.
Bonus -
» To Keiji 🍙
YOUROWL
IS FUCKING MY CATTTTTTTTTTT
» From Keiji 🍙
what
WHAT ASENSE WHEN?????????
DID YOU STOP THEM'????
» To Keiji 🍙
no i just heard a bunch of yowling AND I WALKED IN AND THERE THEY WERE
BOS FACE WAS IN HIS PUSSY
why is rintarou right
» From Keiji 🍙
ughhhhhhhhhhhhhhhh
do we just............. let them
» To Keiji 🍙
well i might have encouraged it
a little
and it was gonna happen anyway...........
» From Keiji 🍙
wdym encourage
» To Keiji 🍙
i will explain in detail when you get off work
cuz then you'll probably want to get off
» From Keiji 🍙
u joined our pets in their sex
oh my god
WHY DID I EVEN GO TO WORK TODAY
