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Kenma fidgeted with the gold KT charm that dangled from his red, silk collar as he stood beside his alpha inside the elevator and waited to arrive at their floor. His nerves had settled somewhat since they talked on the drive here and Tetsurou’s hand on his lower back was a soothing, comforting reminder that this would be okay. It’d be the first time Kenma would be having sex with anyone that wasn’t Tetsurou, not to mention it’d be another alpha who was one of their closest friends.
His husband casually brought up the idea a few months ago when he caught Kenma staring at the other couple’s vacation photos, it was likely meant as a joke, but the seed was firmly planted in Kenma’s head. He generally didn’t have much sexual interest in people who weren’t Tetsurou, they’d been together since high school and didn’t wait too long to get married afterwards. His alpha gave him everything he could ever want, treated him a bit like a spoiled omega, and Kenma loved how their relationship worked... he rarely desired for more when Tetsurou was his definition of perfect.
But on this topic... Kenma had a few... dirty thoughts about their best friends and Tetsurou's subtle encouragement let him explore them without feeling guilt over it. Hajime was certainly his type on a physical level when it came to an alpha and Tooru was pretty as heck, knowing that they were both alphas and imagining what their sex life could possibly be like fueled Kenma’s hand at times when he was alone.
Months of mulling over it and Tetsurou teasing him about his little crush on Hajime, he asked his husband if he’d actually be okay with them swapping... just once. It took so much for Kenma to gather the confidence in doing so because he knew how jealous Tetsurou could get over other alphas even looking in his direction and gosh he wouldn’t be able to live if this brought their divorce.
Of course Kenma’s mind was being dramatic as Tetsurou was completely on board with the idea and said they should ask the other couple together over dinner later that week. Tooru was absolutely shocked that Tetsurou would let anyone touch his little omega and Hajime felt somewhat honored about it... his smugness only escalated when Tetsurou informed them that Kenma had a cute crush on him. Tooru got huffy as expected because why is Hajime always so popular and revealed that he also had a thing for Tetsurou back during their college days.
Kenma felt better that he wasn’t totally alone in this and that he wasn’t cheating simply because Hajime happened to turn him on in the same way his husband did. Tetsurou didn’t have strong feelings either way, he trusted that nothing would go catastrophically wrong with them and he wanted to make his wife happy. Kenma honestly couldn’t believe they were seriously planning on this, that within two weeks time he’d have another alpha fucking him.
They laid down their boundaries and went over everything that would occur so there’d be no surprises and hopefully prevent them from getting uncomfortable. Kenma found himself to be rather excited after their dinner together and Tetsurou was sure to take advantage of that once he got his horny omega in bed that night. The days of waiting afterwards were a true test of patience for him, Tetsurou insisted on the two week buffer just in case Kenma or the other two wanted to change their mind (he’s pretty sure it was mainly for Kenma’s sake).
There was another gentle reminder in the form of the thick plug that was snug in his ass right now and made itself known when they left the elevator, Tetsurou spent his sweet time fingering Kenma’s open and having him cum on his tongue. Kenma nearly found himself begging for his knot, even though they had enough time to wait for it to deflate, but Tetsurou said nope , his needy wife can wait ‘til Hajime is burying his cock inside of him.
It was embarrassing just how wet he got them that sentence alone and Tetsurou could feel the slick evidence on his long fingers, leading to him stuffing his face into Kenma’s cunt once more. His alpha was genuinely excited about this, to see his small omega get handled and fucked by a strong alpha that he trusted so deeply... and wasn’t afraid that Hajime would try to steal Kenma away either. The Oikawa’s love and obsession for each other was obvious to anyone who spoke to them for longer than a few minutes and from the comments of their other friends, Kenma knew his own marriage was viewed in the same positive light.
Tetsurou gave the door a brief set of knocks before using the card to step in, they chose a love hotel for this event to transpire in just to save them potential awkwardness and neither Tetsurou nor Tooru wanted foreign lingering scents in their bedrooms. The other couple had already made themselves comfortable on the large bed, Tooru was sucking a hickey onto Hajime’s neck while stroking his cock.
“Couldn’t keep your hands off each other for ten minutes, eh?” Tetsurou commented as Tooru pulled away and winked back at him.
“I was only getting him ready,” Tooru made a show of squeezing the base of Hajime’s cock, “Puddi-kun’s throne is ready for use~”
“Don’t say it like that, asshole,” Hajime grumbled, but Kenma didn’t miss how his hips weakly thrusted up into the alpha’s circled fist. His cock was definitely on the thicker side while Tetsurou was longer, but Kenma was excited to feel how full it’d make him.
“Seems your little omega wants him too,” Tooru remarked as they all went without scent patches and blockers and Kenma was always so... easy to react when it came to that. Tetsurou brought his hand to the nape of Kenma’s neck and bent down to inhale his sweet scent coming from his scent gland there, sending a pleasurable, hot shiver down the omega’s spine. All three of the alpha’s were paying attention to him, his eyes landing on Hajime whose hungry gaze back on the omega had him wanting to submit... to someone that wasn’t Tetsurou.
His alpha subordinates and business associates would be downright shocked by this behavior from the Kozume Kenma, world famous streamer who also ran the successful multi-billion yen game development studio, Bouncing Ball. The omega was a household name, idolized by thousands, if not millions of younger omegas who saw his rise in fame and objection to the alphas who wanted to dismiss or deride him. Kenma wasn’t an omega who allowed himself to get stomped on and frankly didn’t care about all those stereotypical societal norms when it came to bending the knee to alphas.
For his public persona, anyway.
“You can back out of this whenever you want, kitten,” Tetsurou softly whispered in his ear, “I do want you to have your fun though, seeing how fucking horny you are for Hajime.”
“Thank you, Tetsu,” Kenma turned his head to plant a kiss on his husband’s lips, it was full of reassurance and knowing that they were both into this, “that goes for you too...”
“Oh trust me, I’m... more excited about this than I probably should be.”
“Pervert,” Kenma flatly said as Tetsurou chuckled in response, he then left his alphas side to approach the foot of the bed where Hajime was sitting. His shirt was discarded elsewhere, his cock was hard and leaking, waiting for Kenma to hop onto his lap, and the omega had to brace himself just for a moment. Hajime pulled him in by the waist, his touch gentle as compared to his rough appearance, and Kenma placed his hands on Hajime’s broad shoulders as he straddled his lap.
Their lips met in a cautious, shy kiss that made Kenma feel as if he was a nervous virgin all over again, his stomach fluttered as Hajime held him closer and they quietly acquainted themselves with light kisses. Kenma ventured to explore further by licking his tongue against Hajime’s lips and the alpha was fast to give him access, letting Kenma take the lead in this. It’s not something that Kenma was opposed to, but after a decade and a half with Tetsurou wrecking him in every way conceivable, the omega had certain... expectations .
“It’s okay if you touch me and... you know,” Kenma said, far too used to Tetsurou simply reading his mind or doing what he wanted, “I like when Tetsu takes control... so you can too.”
“I got you,” Hajime dipped his fingers underneath Kenma’s sweater to pull it off of him, then captured his lips in a more aggressive kiss that Kenma had to keep up with. Large, warm hands slid up his small torso to pinch and tweak his nipples, getting soft moans out of him since he was so terribly sensitive in that area. Hajime caught on almost immediately and took those nubs between his thumb and forefinger, rubbing and tugging at them to make this little omega whine and squirm on his lap.
“Shit...” Tooru commented as he’d left the bed to join Tetsurou.
“I know...”
Both of the alphas were entranced by their partners together, seeing the size difference between them alone was incredible . Hajime must’ve been so used to being with an alpha like Tooru and now he had to adjust to someone much smaller, more easier to handle how he wanted. Kenma arched his back as Hajime dropped his lips to suck on one of his nipples while his hand went to travel into Kenma’s jeans, pulling down the zipper so he could take hold of his small cock.
“God, I wanna fuck him...” Tetsurou palmed at his own crotch as Tooru went to slap his hand away, “hey-”
“Your little omega says otherwise,” Tooru smirked as Tetsurou just glared back at him, “it’s been five minutes and you’re already breaking the rules, what a stubborn alpha.”
“Oh hush,” Tetsurou grumbled, “why don’t you get started then?”
“Nah, I like making you wait.”
Kenma’s soft whimper drew their attention back to him as Hajime went from tugging his cock to playing with the plug, he dragged the toy out just enough , then thrust it back in. His mouth was still licking and sucking on Kenma’s pretty nipples, teeth gazing against the pale flesh as he teased the omega and left Kenma craving for more , he had to get this alpha inside him.
“Want your cock, alpha...” Hajime looked at Kenma once he made his request and only responded by fucking into him with the toy, “mmm... please! Hajime...”
“I hear ya,” Hajime responded, leaving wet, opened mouthed kisses all over his chest, “I’m just savoring how cute you are, Tetsurou’s a very lucky man.”
“I’d say you’re luckier since you’ve been running through his head all month,” Tetsurou replied, “typical omega slut, one alpha can’t be enough for him.”
“Could your small, tight body take all three of us?” Hajime lowered his voice so only Kenma could hear, “all of our knots splitting you apart.”
“ Yes ,” Kenma moaned as Hajime let out a light laugh.
“Maybe if we do this again,” Hajime pulled the plug out, setting it onto the bed and easily picked up Kenma to turn him around, “look at this, I made your wife this way.”
Kenma saw that look on Tetsurou’s face, his fists balled at his sides and the ever obvious bulge in his slacks that he wasn’t allowed to touch. Hajime rid Kenma of his pants and underwear, then had Kenma relax back on his chest before lining his cock up with his ass. Kenma felt like that could be the moment that Tetsurou would snap and end all of this, but he just watched as Hajime filled his wife with his huge cock and wow, Kenma would need a few to adjust to this size.
They didn’t do anal that often since Tetsurou preferred fucking and stuffing his cunt, but he didn’t want Hajime's cock there at all. The alpha’s cock remained still inside of him as those fingers were on his nipples again, a hot mouth kissing on his neck as well. It’s just what Kenma asked for because he loved being a good cockwarmer for Tetsurou and if he was going to watch Tooru fuck his man, well... this was the best seat in the house.
“You guys can get started,” Kenma said once he was sure that his husband was comfortable enough with this.
Tooru was fast to move by grabbing the other alpha and shoved him backwards onto the bed, he landed just beside Hajime and Kenma. He wasn’t given much time to react as Tooru was on him within seconds and Kenma was greeted with the delightful show of Tetsurou and Tooru angrily making out. Alpha on alpha was something that lived in Kenma’s porn history and getting to see Tooru be so demanding and dominate over his husband was hot as fuck.
It’s something that Kenma tried a few times in their bedroom, but his submissive instincts and overall preferences always took over and Tetsurou was more than happy to overpower him. Kenma’s place was as his omega, he was there to serve his alphas needs and be fucked without question, it’s what made Kenma happy and it did take some convincing for Tetsurou to totally be fine with that. His husband rarely hesitated these days when it came to just using Kenma as his own fuck toy or treating him like nothing more than a dumb sub.
But seeing this alpha who so regularly exhibited his strength over his omega having to be at Tooru’s whims, it must’ve been difficult on some level. Tetsurou didn’t seek to make it easy on his old friend as their kisses turned into biting and wandering hands were just a means of testing the other alpha. Kenma subconsciously ground down on Hajime’s cock as Tooru held Tetsurou down by the throat and rolled his hips down on the other alpha, both of their cocks still covered by their pants.
“ Fuck, your scent is killing me,” Hajime whispered from behind Kenma, he gave a few hard thrusts up into his ass before recollecting himself and forced Kenma to be still, “no more moving, you devil.”
“Can’t help it,” Kenma whined, “they’re so hot together.”
“I know,” Hajime groaned, “half tempted just to knot you right now from how tight you feel around me... and you smell amazing .”
“Alpha...” Kenma’s moan only got him Hajime pushing three fingers into his mouth.
“I don’t know how anyone expects me to hold back when you sound like that,” Hajime said as Kenma diligently sucked on his fingers.
“You want me to fuck you, Tetsurou?” Tooru grinned from above him, “ask me nicely.”
“Fuck you,” Tetsurou growled back.
“Don’t you want to make your wifey happy? Throw away that stubborn alpha pride and beg for my fucking knot,” Tooru curled his fingers tighter around Tetsurou’s throat, “or maybe I’ll fuck Kenma myself? He’s so adorable I might take him back home.”
“You touch him and you’re dead ,” Tetsurou spat out.
“Then you know what to say, alpha~” Tooru bucked his hips forward as Tetsurou let out a soft moan, “I’m waiting for it.”
“Yes, yes... give me your fucking knot, I really... I want it,” Tetsurou said, “just don’t touch Kenma...”
“We’ll see about that,” Tooru flashed him a smile and went to yank Tetsurou’s pants right off of him. Kenma reached out to grab for Tetsurou’s hand, causing Hajime to withdraw his fingers from his mouth.
“Gimme both.”
His husband did so as Tooru was standing at the side of the bed and pulled him towards the edge, letting Kenma hold both of his wrists above his head.
“... traitor,” Tetsurou murmured, getting a small smile from his wife.
Tooru shed his own clothing and Kenma got a nice look at his pretty, slick cock that mirrored Tetsurou’s, just a little smaller, but Kenma had a feeling his alpha would be getting wrecked by it either way. Tooru collected the slick that came from his cock with his fingers and moved to wedge himself between Tetsurou’s legs, then Kenma saw as that hand was lowered and Tetsurou tensed beneath him. It wasn’t the first time that his husband ever had anything in his ass, but he’d never been fucked there either... Kenma simply lacked the interest.
“You’re going to have to relax for me, Tetsu-chan,” Tooru chided as he slowly pushed a single digit in, “it’s perfectly fine to let your ass get rammed.”
His alpha was clearly holding back laughter as he responded, “that’s what an omega for, I’m not like that.”
“Bit late to be saying that when you’re laid out so pretty on your back and with your slutty legs spread open for me,” Tooru must’ve slipped in another finger as Tetsurou let out a groan, “doesn’t he make such a handsome omega, Puddi-kun?”
“Yeah...” Kenma replied as he was loving the expression on Tetsurou’s face right now, was that how Kenma looked when Tetsurou was fingering him? The alpha’s mouth dropped open as Tooru went to lick his cock and wrapped his lips around it. Kenma dug his blunt nails into Tetsurou’s wrist and felt Hajime’s hips stutter upwards, fuck that was going to be rough on them.
Tooru was pleased with this direction as he gradually took Tetsurou further down his throat and fucked him right open with his fingers. Hajime’s grip on Kenma’s waist would prove to be bruising as he was trying so hard not to fuck this omega silly from watching his own husband suck cock. Tetsurou was just reduced to moans and quiet curses as Kenma held his wrists in place, Tooru was a fucking expert at deepthroating his massive cock when Kenma still had trouble with it.
“Fuck... ‘Ru, you’re gonna make me cum if you keep going... I don’t wanna-” Tetsurou said as his back was starting to arch off the bed, his sheer pleasure rife in his voice.
“You want to cum on my cock, is that it?” Tooru popped his mouth off, leaving Tetsurou to whine at the loss, “you want to be fucked like a needy omega, Tetsurou?”
“Yeah, just fucking do it,” Tetsurou replied, only to get an taunting laugh from the alpha.
“You’ll get my cock when I say so,” Tooru winked back at Kenma before swallowing down Tetsurou once again, his fingers thrusting at a punishing pace that had Tetsurou moaning louder. Hajime’s self restraint was truly on the wire as he couldn’t help fucking up into Kenma, it was a nice and slow grind that Kenma was wholly enjoying.
“Ru... I’m gonna, fuck ,” Tetsurou nearly yelled as Tooru suddenly withdrew from him again , “asshole!”
“Is where you want my knot,” Tooru smiled, waiting for Tetsurou to slump back against the bed before even touching him, “Hajime you could make it less obvious that you’re fucking him.”
“You try staying still with a cute omega squeezing the fuck out of your cock,” Hajime bit back, but Tooru just snickered in delight.
“Do what you want babe, I’m having so much fun with Tetsu-chan,” Tooru introduced his fingers back to Tetsurou’s hole and the alpha sighed in relief. Kenma was amazed because Tetsurou usually hated getting teased, especially for how much he thrived in dishing it out.
“You’re doing good, Tetsu.”
“Kenma...” Tetsurou briefly smiled up at him before Tooru was pulling another moan out of him, his cock delving into that lewd mouth. Tooru and Kenma chatted privately about how long it’d take Tetsurou to break, but he seemed intent on pleasing his omega and meeting his needs. This definitely worked out in Tooru’s favor as he got to turn this alpha into an utter mess and suck his cock as much as he wanted, fuck how was anyone this dick hungry?
Hajime made an abrupt stop as Kenma felt the telltale swelling of a knot against his walls, the alpha buried his face in Kenma’s hair and quietly cursed, waiting on it to go back down. Kenma took one of his hands off of Tetsurou’s wrists to rest it over the one holding his waist, a silent commendation of Hajime’s great efforts not to cum before he’s allowed to.
“Kenma, you’re killing me ,” Hajime ducked his head to kiss his neck, “omegas are somethin’ different, man.”
“Do you want me to be an omega, Hajime?” Tetsurou cursed again because of course Tooru stopped sucking him off, “is that what you seek deep down?”
“No,” Hajime flatly said, “I love you the way you are, baby.”
“Aww, I love you too!” Tooru said, “cherish that little omega in your lap, savor his cute ass warming your cock.”
“I will,” Hajime’s low growl went straight to his genitals, he was a sopping, wet mess by now, “but I don’t know how long I can hold back if you don’t get to fucking Tetsurou.”
“Ugh, you alphas are so impatient,” Tooru rolled his eyes as he pumped his fingers into Tetsurou for a few more moments before taking them out, “but I guess you deserve now.”
“Please, holy fuck, I want you inside me now ,” Tetsurou pleaded and even that seemed to rile Tooru up as he grabbed his cock and lined himself up with Tetsurou’s hole, “go, go now , ‘Ru.”
“I’ll take care of you, alpha,” Tooru said as he slid down to the hilt, “god, yes...”
Kenma felt Hajime shift behind him, guiding Kenma with a back on his back to lean forward a bit, then bucked his hips up into him. Kenma let his grip loose on Tetsurou's wrists and instead trailed his fingers downward to his armpits, lightly brushing the sensitive skin there. Tetsurou’s immediate protests were cut off as Tooru slammed harder into him just as Kenma got to abusing his true weakness, his ticklish body while getting fucked.
“No, no, no that’s- stop that Kenma!” Tetsurou’s mix of giggles and moans was downright delicious, Kenma would’ve been more efficient about torturing his husband with tickles if Hajime wasn’t pounding into him so fast . Tetsurou was squirming and whining nonetheless as Kenma’s fingers tickled his armpits, that must’ve felt great for Tooru as he was letting out soft moans now and having to hold the alpha down by his hips.
“Kenma, come here,” Tooru’s breathy voice had Kenma looking up to see Tooru bent forward just enough for them to kiss right above Tetsurou. Kenma tasted his husband on Tooru’s lewd tongue, and fuck it was erotic as hell, he was eager to explore Tooru’s mouth with his own tongue.
“Too much, it’s too much...” Tetsurou whined just as he finally came all over his stomach, some reaching up to his neck and chin. Kenma moaned right into Tooru’s mouth as Hajime’s thrusts accelerated, he was seriously using Kenma’s ass to chase down his orgasm.
“Go on babe, knot his cute wife,” Tooru said as he broke away from the kiss, “give him your pups.”
“Fuck, Tooru,” Hajime cursed, giving it two, three more thrusts before his knot ballooned inside of Kenma and his ass was full to the brim of his cum. Kenma was pulled back onto Hajime’s chest and a large hand wrapped around his weeping cock, it didn’t take much for him to be gushing and making more of a mess.
Tooru’s constant teasing was left behind as he had one goal in mind and Tetsurou would get the knot he so happily begged for. Kenma really didn’t want this to stop, he was addicted to watching his alpha get fucked and used like an omega, like Kenma himself. Tetsurou was beautiful, fingers curling into the sheets as his mouth hung open and Tooru plunged deep in him to spill his seed and claim his ass with a fat knot.
Kenma couldn’t be more pleased...
...
“Would you do that again, kitten?”
Kenma glanced over at his husband, he was rather relaxed with one hand casually resting on the wheel and the other squeezing Kenma’s thigh. They reserved that room just for a few hours so they had some cuddles and had to clean up soon after. Everyone appeared to leave in a very good mood, although no plans had been set for another night like this.
“Yeah... if you want to,” Kenma admitted, “I liked it.”
“Me too,” Tetsurou gave his thigh a gentle squeeze, “never saw myself getting fucked by Tooru, but... I have to say he was really god damn good at making me beg.”
“Very sexy of him,” Kenma smiled, “maybe you could switch roles next time?”
“Maybe...” Tetsuroou hummed, “... I’m starting to see why you like taking my knot so much.”
“I do have a few toys that can serve in that area,” Kenma said, knowing full well that Tetsurou used them on him... quite often.
“We’ll use ‘em next time we fuck,” Tetsurou smirked, “my little alpha.”
Hmm... Kenma could grow to like that...