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It took a single text from Tetsurou for Keiji to finally reach his limit and stop being so passive when it came to another omega who wouldn’t leave his alpha alone. Keiji wasn’t the jealous type, he couldn’t afford to be when Koutarou got along with damn near everyone under the sun, but that also meant everyone within shouting distance knew that Koutarou was taken. Keiji was fine with his alpha being affectionate and close with his friends because that’s who Koutarou was at heart, a very loving alpha, but this behavior from Atsumu was crossing the line and Keiji needed to remind of him of just who Koutarou was mated with.
Hajime was also suffering from the same conundrum considering that his boyfriend was Oikawa Tooru and his fanclub had expanded far beyond the reaches of just their high school. Tetsurou wasn’t on the volleyball team, but he attended their matches whenever he could and dropped by the after parties for the free drinks and food before taking himself back home to Kenma. This meant that Tetsurou heard and saw quite a bit from their friends and given the massive hookup culture just on campus alone, there were always people who tried (and failed) to get with these alphas.
Keiji and Hajime stood side by side in the elevator taking them up to the penthouse that Kita’s parents bought him because apparently a normal apartment simply wasn’t enough for their son and waited to reach their floor where the party was being held. Keiji barely knew what this party was for, nor did he care as he didn’t intend on going in the first place -he had a solo date with a bottle of wine and a few romance novels-, but Tetsurou telling him that a drunk Atsumu was still attempting to get into his alpha’s pants set him off. Keiji dug through his closet to toss on his whores uniform that consisted of an off the shoulder white dress that hugged his body in all the right places and left his long, gorgeous legs exposed with matching white stiletto heels.
His wrists were lined with the silver and gold bracelets that Koutarou gifted them and dangling earrings hung from his decorated ears. On his neck was a black, thin leather collar that had a silver BK charm and two other longer necklaces that were also given to him by Koutarou. Keiji was usually content going out with the promise ring that he still held onto from high school and a bracelet or two, but he wanted to be that bitch who showed off just how much Koutarou spoiled and spent on him.
Keiji didn’t even care for jewelry before they began dating, however Koutarou was like an excited bird who had to drape Keiji in all the shiny things he found and made his mate even more beautiful. It took Keiji a while to truly accept it and not just insist that Koutarou didn’t have to, now he embraced it and wasn’t too shy to post about the new, expensive accessories Koutarou gave him. He still wasn’t as... loud about their relationship like other couples they knew, but fucking hell you’d think that Atsumu would get the hint already?
They were welcomed by the sound of some anime song playing when the elevator doors dinged open and went their separate ways to find their alphas, it seemed as if everyone they knew was at this party. Keiji made his way down the hallway to peer into one of the rooms to see Tetsurou being a wallflower while watching his boyfriend decimate the competition in smash, not much sign of Koutarou here. Tetsurou perked up as he noticed Keiji and let out a low whistle at his outfit, he was not expecting the omega to flaunt himself like that.
Keiji just crossed his arms over his chest and asked where Koutarou was, his patience was wearing thin and he was possibly regretting wearing these heels, even if he felt multiple pairs of eyes linger on him. Tetsurou informed him that he last saw Koutarou and Tooru on the roof, they were playing beer pong and Kenma wanted to go somewhere that was slightly quieter. Keiji nodded just as Tanaka was screeching about Kenma cheating and left that room to their own devices, he shot a quick text to Hajime and got a thumbs up emoji in return.
They both ascended up to the roof together where people were dancing to the next anime song that the DJ put on, others were hanging around or swimming in the pool, and there were their boyfriends. A girl that Keiji vaguely recognized, mainly from Hajime bitching about her was standing awful close to Tooru while Koutarou and Atsumu were on the same beer pong team. Not terrible on its own, but Keiji saw the flirtatious comments Atsumu left on Koutarou’s posts, he knew how often Atsumu was always asking to hang out with Koutarou and to study together. There was also the way Atsumu looked at Koutarou and behaved like a fucking omega who just presented last night, he was starved for attention and Koutarou was too damn oblivious and friendly for his own good.
Koutarou was aiming a ball at a cup when Keiji slid up by his side, causing the startled alpha to drop the ball right on the ground and a wide, happy grin on his face once he saw it was his mate. Koutarou didn’t get a chance to speak as Keiji pulled him in by his shirt to lay a possessive kiss on his lips, the taste of cheap beer was on Koutarou’s tongue, but that wouldn’t stop Keiji’s mission. It took a moment for Koutarou to match up with his boyfriend’s sudden aggression, however Keiji certainly didn’t let down when he felt those large hands rest on his ass, tempting his dress to ride up.
“I missed you and I want to fuck you, alpha,” Keiji cooed into Koutarou’s ear, he quietly noted that there was the faintest trace of Atsumu’s scent on him and pressed himself closer to his alpha.
“R-right now?” Koutarou asked as Keiji responded by kissing his neck, letting his warm tongue lick his scent gland as he caught Atsumu’s eye. The other omega was stiff in place as Keiji wrapped his arms around Koutarou’s shoulders, a victorious smirk on his lips when he saw the envy in Atsumu’s eyes.
“Right here, in front of everyone,” Keiji said, “I don’t care who sees, I want them all to know you’re my alpha.”
“Holy shit Ji, what’s gotten into you?” Koutarou pulled back just a little to get himself a good look at his boyfriend, his golden eyes raking over his pretty face, all the jewelry, the dress that barely left anything to the imagination. Keiji could see and smell how his alpha was reacting to this feast before his eyes, how his hands squeezed his ass in obvious interest of wanting to fuck his mate.
“I said I missed you,” Keiji curled his fingers tighter in his shirt, “and I’m tired of these other omegas trying to fuck you when I’m not around... you’re mine .”
“Baby, you have nothing to worry about,” Koutarou raised one of his hands to cup Keiji’s jaw, “I only have eyes for you , the only scent I can smell is yours, no one else’s.”
Keiji’s response came in mashing their lips together once more, he knew he was probably being unreasonably clingy, but he couldn’t ignore the raging urge inside of him to have Koutarou knot him right on the spot. Would that finally manage to get Atsumu to back off, did he have to see how Koutarou fucked him and only wanted him, no other damn omega? It was driving Keiji insane, he needed Koutarou’s cock now .
“Fuck,” Koutarou broke the kiss to look across the roof where a cabana sat with no one else sitting on the pristine white deck chairs underneath, “you seriously want to?”
“Yes Koutarou, don’t make me beg for it,” Keiji dropped his hands from Koutarou’s shoulders to snatch up his wrist and hurried on past the pool. The alpha was content with letting his horny omega lead the way, only taking notice that Hajime and Tooru were tailing them once Keiji pushed him onto the chair. The two alphas glanced back at each other as Keiji mounted Koutarou’s lap while Hajime was decent enough to draw down the white curtains, but their silhouettes would be rather distinct.
Keiji was running on his primal, feral instincts as they roughly kissed and his hand went to take Koutarou’s cock out of his pants, already hard and dripping slick for his needy omega. Koutarou slipped his hand under the dress and rubbed Keiji’s pussy over his panties, the fabric was soaking in his arousal and having Koutarou’s touch there just made him gush even more. He heard a groan out of Hajime that caused him to turn his head just for a moment to see that Tooru was quick to finger his greedy cunt open and whispering god knows what dirty things into his ear.
“Did you two plan this?” Koutarou asked as he pushed aside the panties to thrust in two thick fingers in Keiji’s wet heat, “were you that needy for our cocks?”
“Mmm... yeah,” Keiji rocked his hips back on Koutarou’s fingers, “do you know how annoying it is to see someone always on you? It pisses me off.”
“Gotta say, that’s really fucking sexy,” Koutarou replied as he took in his omega riding his fingers, “I love seein’ ya get all riled up and feral for me... I think this is a first.”
“Everyone has their limit,” Keiji squeezed Koutarou’s cock to get a nice moan out of him, “mine just so happens to be Atsumu fucking Miya.”
“Ugh... yeah... you really think he’s into me?” Keiji’s flat expression back at Koutarou caused him to snort, “okay, okay! I’ll tell him to knock it off.”
“Thank you,” Keiji leaned forward to leave a soft kiss on his lips, “I don’t think you’d do anything with him but...”
“Mmm, I get it,” Koutarou gave Keiji a harder thrust of his fingers, the dress had ridden up enough that his small omega cock was smearing on the white fabric, “get out your frustration on my cock, yeah?”
“I was planning on it,” Keiji said, sparing a glance over at the other couple to see Hajime clearly teasing a whining Tooru by not sitting himself down on his cock, “has he been a good enough alpha?”
“Is he ever?” Hajime replied as Tooru glared back at him, “unfortunately I’m a slut for a knot.”
“Excuse me, you were the one begging -” a hand was clapped over Tooru’s mouth and Keiji had to giggle at getting a glimpse into whatever the hell their sex life consisted of.
“I’ve been good...” Koutarou had the cutest pout that Keiji couldn’t resist kissing, “tell me, omega.”
“You’re amazing, alpha, I love everything about you and you treat me so well,” Keiji slowly sank himself down on Koutarou’s cock, never tiring of how full he felt, “I love belonging to you, I love that you’re such a bright star in my life.”
“Ooo, keep going,” Koutarou grinned.
“Greedy alpha,” Keiji murmured as he just raised his hips, then brought them back down on Koutarou’s cock, getting to ride his alpha at this party would be the highlight of this week. Koutarou assisted Keiji by groping his cute ass and lifting him up as if he weighed nothing, then slammed him down and had them both breaking out in lewd moans. Koutarou was inside him, Koutarou wanted to be with him , they made their promises to be together forever when Keiji was sixteen and that was still going on strong, Koutarou would never look at another omega that way he did Keiji.
“Kei- Keiji,” Hajime’s fucked out voice got his attention and a flash of annoyance passed through Koutarou’s expression before he saw the two omegas lean over to kiss. The grip on his ass grew tighter as Koutarou fucked him self hard into Keiji and had him moaning into Hajime’s mouth.
Tooru took that personally and as a challenge, now both alphas were working to make their omegas cum on their cocks as fast as possible. Keiji’s tongue sloppily danced with Hajime’s as he was being fucked so shamelessly, their alphas were such perverts who got off so easily on two omegas together. Hajime pulled back first with a smile on his swollen lips, their plan worked out perfectly and they got to tell those bitches to piss off in the most excellent of ways.
“Want my knot, baby boy?” Koutarou was clutching Keiji hard enough that he knew his alpha was getting close, “gonna make a fuckin’ mess inside of you.”
“Please alpha, knot me,” Keiji tried to meet Koutarou’s frantic thrusts with his own, “plug me up with your seed...”
“ God , Ji when ya’ say like that,” Koutarou growled, his cock pounding faster into his willing, moaning omega sitting so pretty, so horny on his lap. Keiji dipped his hand down between them to quickly stroke his little dick, feeling the impending stretch of the bulge expanding against his walls. The best physical reminder and comfort that Koutarou loved him and was so dedicated to him , Keiji cherished that warmth that flooded through him as Koutarou moaned his name on release.
“Man... we have to do this again!”
“I don’t think so,” Keiji murmured as his shyness finally crept back on him and he buried his head in Koutarou’s shoulder.
“Tooru! Would you wanna do it again?!”
“Oh yes, maybe in the middle of downtown next time,” Tooru cackled as Keiji could hear Hajime’s groan of disapproval. But would Keiji really say no if Koutarou asked him to suck his cock right in public?
He may consider it, if only to please his beloved alpha.