Chapter Text
Sukuna’s roommate and his boyfriend are fighting again. It’s the same shit but just a different day.
A different ‘night’ rather.
He’s hunched over a textbook, trying and failing to study for an exam that he will more than likely fail regardless of how hard he tries not to. His professor’s main kink seems to be ruining lives and forcing students to retake his class.
The couple across the hall are exchanging obscenities and insults that would usually result in a fist fight around Sukuna’s neck of the woods. His roommate, Gojo, may be a mean bastard with a smart mouth, an alpha who takes pride in his second gender, but he’s not violent enough to put his hands on an omega.
Sometimes Sukuna does worry, though. He has never been in a relationship with anyone who upset him as much as these two seem to upset each other. From his perspective, Gojo is usually the one at fault. He's a good looking guy who likes to flirt and he has a habit of entertaining bitches when he shouldn’t.
Geto, his boyfriend, hates that, rightfully so. Omegas are just as territorial as alphas but no one takes it seriously. Gojo is one of those people. He knows Geto loves the hell out of him which is why he continues to fuck up.
Young love is never real in Sukuna’s opinion. They’ll either fix their shit or break up. There’s not point in constantly arguing over trivial things.
This is why Sukuna enjoys being single.
Needing a break from all of the shouting, Sukuna slams his textbook shut. He grabs his track jacket and leaves the apartment.
It’s drizzling outside. He throws his hood over his head and heads downstairs. Leaning against the wall, he takes out a cigarette and lights it. He watches one of their neighbors struggle to back their car out of a parking spot. Mentally, he’s directing them on how to turn their wheels and ridiculing them when they do the opposite of what he said.
“Fucking dumb ass.” Sukuna sucks his teeth and squints to keep smoke out of his eyes.
Hearing a door slamming, followed by hurried steps on the stairs, he turns his head to see who it is even though he already knows.
Geto stops at the bottom step, running his hands through his long hair as he cries. His fists are balled tight, the veins in his wrist prominent.
Sukuna skims his eyes over the omega’s legs and thighs that his tight compression shorts have on display. He’s wearing a pullover for the university’s track team - Gojo’s pullover - and sneakers.
Sporty and cute.
“Need a smoke?” Sukuna asks.
“Jesus,” Geto gasps, clutching his chest. He sees Sukuna and he laughs. “You scared me, Ryoumen-san.” He wipes his eyes.
“Sorry.” He takes out his pack of cigarettes, extending it.
Geto stares at the offered cigarette. He considers it for a few seconds. “Thanks.” He takes the cig and puts it up to his lips.
Sukuna has a lighter in his back pocket but instead he leans down and lights the end of Geto’s cigarette with his own. This close up, he can smell the exact moment the blood rises to Geto’s cheek, can see that his bottom lip has teeth indents from him biting down too hard. He probably did that a lot while he and Gojo were fighting.
“Thank you,” Geto says, standing back. His cheeks are flushed and he refuses to meet Sukuna’s eyes. “Sorry about all that!” He gestures with his hands in regards to the earlier shouting match.
“I’m used to it.”
Geto winces. “You shouldn’t be. That’s the problem.” He holds his head back while he pulls on the cig as though it were a joint.
Damn he needed this badly.
Sukuna doesn’t know why that gives him satisfaction; knowing that he helped Geto in some way.
He stares at the column of the omega’s neck, his small adam’s apple that is hardly noticeable to the untrained eye. Male omegas have them but they’re not as prominent as an alpha’s. If Sukuna wanted he could wrap his entire hand around Geto’s throat and lift him up off the ground.
It’s a strange thought to have. Even stranger is how much he’d like to do that and see how Geto would react. He would definitely fight back, the aggressive little thing that he is. He’s a head shorter than Sukuna and a head a half shorter than Gojo who is mostly legs and broad shoulders.
Sukuna makes up for the mild height difference between him and Gojo with his broader body.
“Do you have a partner, Ryoumen-san?” Geto asks suddenly.
Sukuna looks away from Geto’s neck to his face, noticing the way Geto is looking at him. He definitely caught Sukuna staring at him.
“Hell no,” Sukuna says, flicking ashes off his cig. “Too much trouble. I think you’d agree?”
Geto laughs. He has a pretty smile. Under the shitty light, his eyes have a speckle of gold in them. Purple and gold are a nice combination.
“I was going to ask for your advice on something but since you don’t have experience…”
“I never said all of that. I’ve been in a relationship before, Geto-san.”
“What I mean to say is, you’re not going through anything like this now.”
“I’m not.” Sukuna weighs his words before he speaks. They should be kept to himself but he says them anyway. “You don’t have to go through it either.”
Geto’s eyebrows furrow. “Excuse me?” he asks, turning his body to face Sukuna full on.
Sukuna pushes himself off the wall, enjoying the challenge that change of body language offers him. “What’s the point of chewing each other’s heads off constantly when you could just break up?”
“It’s none of your damn business!”
“The walls in my apartment say otherwise.” Sukuna puts his cigarette out on the bottom of his shoe. But he tucks the remaining cig behind his ear instead of littering. “Geto-san, you’re too damn beautiful to be crying over the likes of Gojo Satoru every Friday night. That’s all I’m saying.”
Geto doesn’t acknowledge the compliment. He’s too pissed to do so and some flowery words aren’t going to soften his mood. Sukuna likes that, too. He likes that Geto isn’t some airhead who gets easily distracted.
If only he had enough sense to leave Gojo alone.
“Goodnight,” Geto says with all of the coldness of an icicle.
Sukuna watches him walk off to his car, his eyes glued to his ass in those compression shorts.
What would it be like to have Geto for a night?
The thought has never crossed his mind until now. He doesn’t even know why or how the thought manifested, but now that the thought is there he can’t get it out of his head.
Friday night rolls around again.
Sukuna is getting ready for a night of drinking beer and watching movies alone. He’s setting up in the living room of the two bedroom apartment when he overhears Gojo arguing with Geto on the phone.
Last Sunday, Gojo and Geto kissed and made up. Gojo promised to take Geto on a date tonight and that they would start fresh. Now Gojo is cancelling on Geto for a “family emergency” when in truth he wants to go to a concert with one of his other friends.
The other friend is a female beta who wants to fuck Gojo. No, she wants to marry Gojo, actually.
Sukuna knows it, Gojo knows it, and Geto knows it too which is why Gojo is lying to Geto.
Gojo swears that Geto has nothing to worry about because he wouldn’t cheat on him but that isn’t the point. That also isn’t the truth but Sukuna will make no comment. He knows that Gojo loves Geto and he wants to marry him someday.
The painful truth is that Gojo Satoru is in his “dog era” which means he isn’t going to get serious about anyone until he gets out of this phase.
Every alpha has one. Sukuna isn’t exempt from that, either. That’s why he’s single.
It doesn’t help that Geto is a clean cut boy from the countryside with good manners and morals that he upholds. There are people out there who will do the grimiest shit in the bedroom if Gojo asked them to, and then there is Geto who is modest for the most part.
That isn’t a bad thing, either. He’s the kind of omega who gets a courting collar and a lifetime commitment down the line. It’s just that until Gojo is out of this phase, he’s going to prefer the freaks who will eat cum out of his ass if he told them to.
“Hey, if Suguru comes by, tell him that I drove to Kyoto for a family emergency and that’s all that you know,” Gojo says. He’s dressed for the concert and slipping condoms in his wallet. “He’s been so damn needy lately. I just need a break.”
“Okay,” Sukuna says, keeping it at that.
“Good looking out, Sukuna!”
Sukuna nods and smiles as they fist bump. When Gojo leaves the apartment, his smile drops.
At least he’ll have peace and quiet tonight. Starting the first film of the night, Sukuna kicks his feet up and knocks back his first beer.
Exams are over. A weight has been lifted from his shoulders momentarily. He’s well prepared to stay up until early morning watching films.
His night continues just like that when there’s a loud knock at the door. He’s almost done with his second movie and is starting another pack of beer. He’s tipsy; a long way from being drunk.
Sukuna gets up to answer the door.
“Where is that lying piece of shit?” Geto asks. He’s holding on to the door frame to keep himself upright. His cheeks are red and his eyes are glassy. He reeks of alcohol. “Satoru!! Come out here!”
Geto is wearing sweatpants, a cropped shirt that shows off his toned stomach, and a light jacket.
“He’s not here,” Sukuna says, stepping aside to let Geto in so he can see for himself.
Geto enters the apartment. Aside from alcohol there's a sweet, earthy scent clinging to him, reminiscent of sandalwood. His pheromones are never this strong because he wears a scent patch.
Sukuna closes the door and locks it. He goes to the kitchen to get water for Geto while Geto goes through Gojo’s room.
“He’s not here!” Geto says, stepping out of the bedroom moments later.
“I told you that.” Sukuna walks over to him. “Here, drink this.”
Ignoring the offer, Geto covers his face and screams. “I know he’s lying to me!” He wipes his eyes. “Tell me the truth, Ryoumen-san. Is he cheating on me?”
“I don’t know.”
Geto throws his hands up, looking desperate. “I don’t know why I expected you to tell me! Alphas stick together, right?”
“Not always, and I genuinely don’t know.” Sukuna offers the water again. “You should drink this. Try to sober up.”
Sighing, Geto takes the water and they walk over to the couch to sit down.
“Did you drive here like this?” Sukuna asks.
“No. My roommate dropped me off. He tried to talk me out of it but I trust my instincts.”
“What are your instincts telling you?”
Geto’s face breaks. “That Satoru is cheating,” he cries. “He’s with that bitch isn’t he?”
The ‘bitch’ in question is the female beta who Gojo is out with tonight. Sukuna could lie to Geto; he could gaslight him easily. He’s not ashamed to admit that he’s rather good at that. But he doesn’t want to do that.
This is an opportunity that he wants to seize.
“Geto-san, I do not know if he is cheating but he is with her.”
Sukuna feels physically sick when he hears the heartbroken sob Geto lets out after hearing that. He takes the glass of water before it’s spilled and he rubs Geto’s back to offer him some comfort as well as test the intimacy level and see what he can get away with.
He wants to show Geto what a beauty like him deserves.
“I’m so stupid,” Geto says, sounding more furious than sorry for himself. “I knew I wasn’t being paranoid…”
“There is a chance they aren’t doing that.”
“He cancelled our date night to be with her. That is more than enough!”
“You’re right. I’m sorry.”
Geto shrugs Sukuna’s hand off his back. “It’s hot in here,” he says. He takes off his jacket. “Is the A/C on?”
“It is.”
Sukuna had a hunch but now it’s being confirmed. Geto’s “neediness” as Gojo describes it is due to his heat. That imbecile neglected his omega. He brought this all on himself, and Sukuna is more than happy to teach him a lesson.
“Are you hot?” Sukuna simpers, rubbing Suguru’s lower back, hand on skin. “Is your skin…heated?”
The word “heated” is the catalyst. Suguru’s face twists and he hugs himself, whimpering quietly.
“What? How?” Geto asks in confusion. “It’s too soon…”
Sukuna presses his nose against Geto’s head, inhaling his scent and enjoying the silkiness of his hair. He really does love Geto’s hair. Removing the air tie, he combs his fingers through it and brings the strands up to his nose for an inhale.
Smirking from the way Geto shivers, he kisses his cheek and pulls him into his lap. Squirming, Geto tries to push him away but Sukuna only has to kiss the back of his neck, right over his scent glands, for him to become a puddle in his lap.
“Gojo doesn’t appreciate what he has,” Sukuna says, his voice just above a whisper. “Allow me to show you how you deserve to be treated.” He hugs Geto’s waist, one of his hands rubbing down his stomach, fingertips brushing the waistband of his sweats.
“Ryoumen!” Geto tries to move his hand away. “We…we can’t!” He’s still being loyal despite the desire in his bones. “I’m…Satoru is my alpha!”
“And where is your alpha now?” Sukuna glides his hand over Geto’s print. He can tell that he’s wet even through the thick fabric. He squeezes, and groans when Geto whines loudly. “Tell me you don’t want to feel special and loved like how Gojo used to make you feel.”
Geto shakes his head, tears streaming down his pretty ,flushed face. “It’s wrong!” He cries.
Sukuna smiles triumphantly. Kissing the shell of Geto’s ear, he whispers, “That wasn’t what I asked you, Suguru.” He punctuates the sentence by biting Geto’s ear and licking into it.
From the way Geto screams and trembles, it’s obvious that he orgasmed just from that.
Oh, Sukuna is going to have fun with him.
He carries Geto to his bedroom, closing and locking the door behind him. Gojo can have that female beta who doesn’t even hold a candle to Geto. Meanwhile, Sukuna will claim his prize.
He leans his back against the door and he holds Geto against his body, using his ass as an anchor. They kiss; Sukuna initiates it obviously. Despite all of his anxious gasps and quiet moans, Geto is fooling no one. He’s trying hard to resist but his instincts are betraying him. His body wants this desperately and he isn’t in a place to deny his body of its wants and needs.
Kissing Geto has Sukuna thinking about how he should have done this a long time ago. He should have claimed Geto as his own months ago instead of denying himself this pleasure for so long.
Gojo was practically dangling Geto in his face, tempting him and enticing him.
“Raise your arms, Suguru,” Sukuna says. He pecks his lips and starts to pull his shirt up.
Geto’s skin is red and burning up. He struggles to raise his weak arms. Sukuna tells him that’s okay and he helps him. His sweatpants go next. With them out of the way, Sukuna can see the sexy panties Geto is wearing as well as the large wet stain on the front of them and the slick on his thighs.
Sukuna loses it for a moment.
When he recovers, Geto is screaming and scratching up his shoulders, back arching off the carpet as Sukuna eats him out. Geto’s pussy is like a forbidden nectar. The more he tastes it, the more he wants it. He keeps assaulting his clitoris, sucking and lapping at it until slick is squirting out.
Face messy, he kisses Geto’s flat stomach, moving all the way up his body to suck on his pert nipples. He uses one hand to slide his gym shorts down, freeing his hard cock.
Whining, Geto rubs his wetness against it, acting exactly like the bitch in heat that he is.
Sukuna wants to make him beg for it but he also finds it hard to be cruel toward Geto. He’s suffered enough being with that dumb ass.
“Simmer down,” Suguru says, kissing the omega’s tear stained face. “I’m going to give you what you need.”
Geto’s long hair is all over the place. Sukuna smooths it away from his face just to kiss him as he pushes his cock inside of his tight, hot body.
“Suguru….” Sukuna grunts. “Fuck, you’re wet…tight…oh, Suguru, you’re a dream.” He can finally utter his name like he’s been wanting to. “You’re mine now, Suguru…all mine…”
Geto is babbling incoherently and scratching at his back, thighs gripping around Sukuna’s hips with a force. They kiss again. Tongues and teeth clashing, moans absorbed by each other’s mouths. Sukuna can’t wait to knot Geto.
Knotting Geto will be fulfilling in more ways than one. He’ll make him fat with pups and stake a claim on him before Gojo can. That’ll teach him a lesson he’ll never ever forget for as long as he lives.
“Do you want my pups?” Sukuna asks. He sits up and grabs Geto by the hips as he fucks him faster. “Want my fat knot?” He grunts.
“Yes!” Geto answers the way he would’ve answered any other alpha during his heat. He’s no longer thinking sensibly. He’s no longer himself. “Knot my pussy!”
Sukuna would feel guilty if this didn’t feel amazing. He watches how Geto moans and writhes on the carpet and he memorizes every detail.
Yeah. This was worth it.
“You son of a bitch,” Satoru shouts as he kicks the door down with a force that rattles the wall.
As soon as wood splinters and the door cracks down the middle and falls down, he rushes into the bedroom in time to see Sukuna pull his deflated knot out of Suguru, semen and slick spilling on the carpet,
Suguru is covered in bites and bruises, skin flushed and eyes hazy. He takes one look at Satoru and whines for him. He’s so out of it that he doesn’t even realize how furious Satoru is.
“How was the concert?” Sukuna asks.
Satoru blacks out. He can hear bones breaking and pained grunts but he doesn’t register the noises as sounds of their fighting until they’re in the living room crashing into the bookcase and breaking it.
“You knotted my omega!” Satoru screams in between punches. “My Suguru?! Are you out of your fucking mind?!”
“You should have been here with him and not that nobody bitch!” Sukuna punches Satoru in the gut. “Suguru has the sweetest pussy, by the way!”
Satoru blacks out again.
When he comes to, they’re both sporting cuts and bruises and Suguru is in the other room begging for his alpha. The territorial and dominant pheromones they’ve been emitting during that fight has Suguru in a frenzy. His sweet scent reaches both their noses, taking their attention off one another.
Sukuna’s eyes take on a darker shade, looking crimson and his fangs are elongated. Satoru’s eyes went from as blue as the sky to the sea on a stormy day. Licking across his fangs, he closes in.
He punches Sukuna so hard it knocks him clean out. Had he not been distracted by Suguru that would have been harder to do.
Satoru returns to the room where Suguru is waiting. He reeks of Sukuna and it crosses Satoru’s hazy, lust and rage filled mind to mark him the ancient way to rid Sukuna’s scent from his body completely but even in this altered state where his Alpha is in control, he can’t defile Suguru that way. He can’t piss on him as though he were some object.
This is also Satoru’s fault.
That doesn't make him any less pissed though.
“Ahhh! Alpha!” Suguru screams, back arching off the carpet and eyes crossing into his skull as Satoru penetrates him. “More! Knot!”
Satoru grips Suguru by the hips and raises his ass off the carpet as he fucks him like he has something to prove. He fucks Suguru as if the act alone can burn away Sukuna’s touch and rid his body of his seed. Gritting his teeth, he tastes blood on his tongue from a cut in his mouth.
“How many fucking times have I told you that none of those bitches mean shit to me?” Satoru grunts. He stares at their connected bodies, eyes hungry and possessive. “They’re wet holes, Suguru. That’s it! You’re going to be my wife…”
Suguru worried too much about the wrong thing and obsessed over people who didn’t matter. But that’s Satoru’s fault for even putting him in a position where he would feel threatened.
It’s hard being a young alpha with pussy being thrown left and right. He’s finally free from a sheltered lifestyle and he wants to experience life. The easiest solution would be to set Suguru free until he was ready to commit but that’s the thing.
Setting Suguru free and living without him are two things Satoru doesn’t want to do.
That’s why he fucks Suguru until his stomach is bloated with cum and he no longer smells like Sukuna. He pulls out before his knot can form and mounts Suguru. He sees that his scent glands have a partial mark on them.
Sukuna was in the middle of marking him when Satoru barged in. Growling, Satoru bites Suguru’s glands, placing his complete mark over the partial teeth indents Sukuna made.
“You’re mine…no one else's, Suguru!” Satoru slams into his worn body, balls pressed against his ass to a near painful degree, and his knot catches.
Suguru isn’t even conscious anymore. While he’s passed out, Satoru sucks on the fresh mark and rolls his hips, fucking his knot deeper into him, filling his walls with his seed. He keeps that up until he’s spent.
He rolls them over to their sides and hugs Suguru against him. He’ll love Suguru no matter, and under no circumstances can he ever leave him.
In the morning when the sun is out, Satoru wakes up alone with the necklace he gave Suguru laying next to his head.
The necklace has the infinity symbol on it because Satoru always tells Suguru that his love for him is infinite. He has always meant that from the bottom of his heart even though he allowed immaturity to break Suguru’s heart.
Satoru picks up the necklace and stares at it.
“Suguru left,” Sukuna says. He steps over the broken door, wearing only a pair of sweatpants.
“No shit,” Satoru says. He sits up and glares at Sukuna, thinking about how he’s going to kill him and hide the body for someone from his clan to clean up.
Sukuna looks just as pissed. “No, I meant he left Tokyo. You were passed out, naked, might I add, on my floor for a full day,” he says.
“He left Tokyo?! Where did he go?”
How was he asleep for that long? During that fight with Sukuna he must have handed over too much control to his Alpha. That can happen during ruts or during fights for dominance. His omega was taken so he had to tap into a darker side of himself to get him back.
Clearly that didn’t even work because Suguru still left the city after Satoru marked him. He’s always been so stubborn.
“I have no clue where he went but I’m going to find out.”
Satoru stands up, not caring about his nudity. “You’re going to stay away from Suguru or you’re going to end up dead. Got that? Be lucky you’re still breathing!”
“I gave him my mark. He’s mine now!”
“No, actually, you gave him an incomplete mark. I gave him my full mark, he’s mine!”
Sukuna walks over and Satoru meets him halfway. The tension is electric and dangerous.
“I felt a bond form with him,” Sukuna says. He smirks. “He also took my knot long before you got here. I bet he’ll be fat with my pups soon.”
Satoru punches Sukuna in the teeth and they’re tearing up the apartment all over again and trying to murder one another. They end up hitting heads and knocking themselves on the floor.
That literally knocks some sense into them.
“We’ll just ask Suguru,” Satoru says confidently. “He’s rightfully hurt now and probably afraid that I’m mad at him.”
“I doubt he cares about that. You ditched him during his heat.”
“I didn’t know his heat was approaching!”
“You don’t deserve him.”
“And you do? You took advantage of him during his heat!”
“So did you!”
Satoru sighs loudly. “We won’t get anywhere with all of this arguing. Let’s just find Suguru, ask him who his mate is, and whoever he doesn't pick has to die by the other’s hand.”
That’s the tradition between their kind. Alphas kill one another for omegas all the time. It’s an honorable way to die, too.
“Deal,” Sukuna says without hesitation.
Removing his hoodie, Suguru smiles at the desk receptionist as he gives her a name for his appointment. He sits in the waiting area after he checks in and flips through one of the family-oriented magazines with an empty gaze.
“Suguru Geto!”
Hearing his name called, Suguru takes a deep breath and walks to where the nurse is. She asks him general questions and they do some check ups before the Doctor comes to speak with him.
The information he eventually receives nearly makes him have a mental breakdown.
“I know this is a sensitive topic,” the Doctor says, placing a comforting hand on Suguru’s back, “but do you know who the fathers are? I understand if you don’t. Omegas are often taken advantage of during their heats. Sometimes by multiple alphas.”
“Do they also end up pregnant by more than one alpha?” Suguru asks. He touches his swollen stomach that has been five months in the making. “I’m having twins…but each one has a different father…is that common?”
“Not exactly but it isn’t too absurd.” The Doctor hands Suguru a pamphlet. “Here is more information on this as well as information on dual mates.”
Suguru thinks he’s going to faint. “Dual mates?”
“Yes, you appear to have two mates as well judging by the mark on your glands. One bond is stronger than the other but you have the ultimate decision on that.”
“This is a lot to take in,” Suguru says, bringing his hands up to cover his face. He starts crying. “I’m sorry…I’m just…”
The Doctor comforts him.
Suguru has managed to avoid contact with Satoru and Sukuna ever since he left Tokyo after. He almost didn’t keep his pregnancy but he didn’t want to cut the life of a pup too short due to the cruel actions of others. But then he learned he was having twins and now he’s learning each twin has a different father.
Meaning Satoru and Sukuna are the father of his pups. They’re also both his mates as well.
That’s if he decides to have them both as such. He can pick one and reject the other or reject them both.
He doesn’t need to think that through. He’s going to reject them both. Those selfish, egotistical cunts just used him as a pawn in their chess game.
Suguru still loves Satoru and he hates it. He even started to think Sukuna was a decent guy. But now he never wants to see either of them again.
He’ll raise his pups all on his own and they’ll never know about the shitty alphas who helped create them.