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Unfortunate Opportunity

Summary:

Scumbag Gojo tries to take advantage of his student's first heat and gets what's coming to him.

Notes:

This is my first JJK fic, special thank you to cloud for the idea!!! Unbeta-ed but I hope you enjoy.

Work Text:

Blood drips onto his forehead, Gojo tries to push the solid mass above him off but after hours of fighting he just can’t manage it. The feeling of defeat is suffocating and overwhelming, one he’s never truly felt before now. How did he manage a miscalculation this massive?

 

The knot slams against his neglected cunt. An alpha like him has no need for one, so it becomes small and tucked away behind his cock after presenting. Its only use is in dire straits where there are no omegas to breed. A last resort to keeping the population going.

 

Yet as he lays there, pressed into the ground and pleasure still building within him, Gojo can’t help but wonder if this was meant to happen. If he were always destined to be bitched by the very curse he’s trained to destroy.

 

Yuuji. He thinks of the omega, his omega, as Sukuna runs a searing hot tongue across his scent gland. If it weren’t for him Gojo wouldn’t be here, he would have never taken that kind of risk if it were some other omega. His head lolls to the side, leaving himself vulnerable to the alpha above him.

 

Sukuna laughs into his neck, laughing at the bitter shame and frustration within the shaman.

 

“Fool, its important you learn your place. Hopefully this will be a potent lesson.”

 

Gojo digs into Sukuna’s shoulder, blood welling beneath his nails as Sukuna’s massive knot fills his cunt. Hot cum paints his insides, belly growing a slight bulge and body clamping down on the intrusion. Its painful. The teeth sinking into his skin sends Gojo reeling.

 

He’s heard stories of alpha’s being bitched, but never during an attempted mating. The adrenaline in his veins intensifying the pain and discomfort of being used like an omega. His body goes limp despite his best attempts at fighting it. The alpha’s fangs bury themselves deep in his skin, flooding in signals to submit.

 

In the greatest betrayal he’s ever experienced, his body listens. His eyes are wide with horror as Sukuna unlatches, meeting his gaze with a smile. A hand curls around his neck and squeezes until Gojo’s sight becomes spotty.

 

“That’s two bitches in my stable. Perhaps I should bitch your other students next. Or will you behave for me?”

 

Gojo’s frozen, unable to keep his eyes open let alone move. The pressure from his neck increases, forcing a choked noise from him as he struggles to breathe. His vision blurs before completely failing as he slips into unconsciousness.


Gojo watches a drop of sweat trickle down the back of Yuuji’s neck as the boy wrestles the cursed doll to the floor.

 

“Tired today, are we?”

 

“Sorry sensei, I couldn’t sleep that great last night. Must be really excited about training. My stomach was in knots.”

 

“Ah…” Gojo hums, sitting on the arm of the couch. One deep breath tells him all he needs to know. The poor boy must not be used to needing to keep track of his heats. Not used to alphas around him that will jump at the opportunity to breed him.

 

Sadly, Gojo isn’t an upstanding citizen, let alone morally obedient. Besides, breeding Sukuna’s vessel is too tempting to pass up.

 

Yuuji pants and struggles on the tile floor, face slowly flushing pink.

 

“Gojo sensei, uh, can I have some help? P-please?” He grunts and shoves the doll into the ground, breathing now labored. His face twists in discomfort as the faint smell of slick permeates the room.

 

Gojo picks up the toy with ease and watches it die in a flash of fire.

 

“Whoa! S-Sensei.” Yuuji shifts a little on the ground, getting on his knees. He starts to get up, but Gojo kicks him back onto his ass. Yuuji makes a pained noise and looks up at him confused.

 

“What’s wrong Yuuji? I was thinking we could do some one-on-one training since the doll was becoming a nuisance.” Saliva pools beneath his tongue as he scents the air.

 

Young, fertile, unmistakably virgin omega.

 

Gojo crouches down to eye level as Yuuji scoots away, cheeks burning up to a bright red. He grabs the omega’s ankle and tuts.

 

“Oh? And what do you think you’re doing? We still have training to do.”

 

His smile must be wicked judging by the fear behind Yuuji’s eyes. He pulls him closer, until Yuuji’s thighs bracket him. Yuuji freezes up as Gojo’s hands carefully pull off his shirt.

 

“Look at you, sweating like a whore in church Yuuji.”

 

“Sensei… I need to, uh, I gotta go to the bathroom. I don’t feel great.”

 

“Because you’re in heat?” Gojo grins and gets within inches of the boy’s face. “Or because I’m making you uncomfortable?”

 

“B-Both. Please…” Gojo interrupts him with a tender kiss, figuring it’s the least he can do.

 

Rarely does he fuck gently, there’s no fun in it. He’s sure it’ll be a rough first time, but he’ll have Yuuji sleep it off on the couch then help him build a proper nest.

 

The removal of his shirt shows how far the pinkish flush has traveled, completely covering Yuuji’s chest. The boy’s nipples are red and puffy, begging for a mouth to tend to them. Gojo grabs Yuuji’s wrists in one hand, pins them above his head and obliges his student’s needy body.

 

Yuuji jerks around under him. Not quite trying to get away but the poor thing looks so nervous. Looks something like an injured bird within the grasps of a house cat.

 

“Shh shh, its fine. Just think of this like extra training!” Gojo grins before teasing one of Yuuji’s nipples with his tongue. After a moment he latches on, sucking and scrapping his teeth over the sensitive nub.

 

Yuuji arches into him and whimpers. Delicious, weak sounds pour from the little omega’s lips as Gojo wastes no time stripping him fully. An itty bitty cocklet stands at attention, dripping translucent precum onto Yuuji’s skin.

 

“Pretty baby, I can’t want to just eat you up.”

 

“S-Sensei! Ah! N-no~” Yuuji cries, trying to pry his hands from Gojo’s grasp.

 

Gojo palms himself for a moment before freeing his aching cock.

 

“Poor thing, look at you,” He coos, stifling a laugh as he forces Yuuji’s thighs apart. “Just as a thought.”

 

“W-What?” Yuuji sounds panicked as he cranes his neck to look.

 

“It seems like you need some serious training down here.”

 

“W-Wha-“

 

Gojo tsks as his thumb slides between Yuuji’s slick folds. His untrained hole clenches around nothing.

 

“Yes, it seems like you need an expert to help you. Just relax for me Yuuji.” He hums, stroking himself.

 

A more patient man would wait, would finger his future wife open enough and maybe relish in the gasps and moans.

 

Today, Gojo is not that kind of man.

 

He presses the tip of his cock against Yuuji’s hole, the omega’s cunt drooling for it. The head pops in with little resistance but Gojo really has to force the full length in.

 

Yuuji sobs, begging and pleading for Gojo to take it out. “You’re going to break me! Its too-too much!”

 

Gojo just squeezes Yuuji’s wrists into the floor and pushes deeper until his hips are flush with the omega’s body.

 

“You are searing hot, aren’t you Yuuji?” Gojo hums. “Radiating heat. Do you know what it means to go into heat? Did anyone ever explain it to you?”

 

Yuuji gasps for air, cheeks ruddy and tear streaked. Gojo reaches for the base of his cock, feeling something wet and much more slippery than slick. Before he looks down he knows, fresh blood.

 

“You’re a full omega now, your cherry’s popped.” Gojo licks his lips, the hunger inside him only intensifying. Yuuji has torn and bled for him; an omega now molded to fit his cock. “You can thank me once we’re done.”

 

Yuuji’s eyes are glassy, slightly vacant. Likely lost in all the sudden stimulation. Gojo kisses along his jaw, slowly rocking his hips. He groans at the vice like grip, the way Yuuji’s pussy milks him.

 

Its hard not to get lost in how good his new pet is. Maybe that lowering of his guard is what ruins it. Just as he settles into a good rhythm, lapping at Yuuji’s neck and preparing to stake his claim, Yuuji twitches, stirs as he regains his awareness.

 

“Good morning sleeping beauty, are you ready for the main event? Maybe you already feel it?” He chuffs, his swelling knot slamming against Yuuji’s cunt.

 

Then Yuuji laughs, something low and raspy. His hands slip from Gojo’s hold, reaching up to grab onto Gojo’s face. Gojo’s falter in movements is when Yuuji chooses to slam their skulls together.

 

He swears his brain rattles from the impact. He growls, trying to pull Yuuji’s hands off and wrestle him back to submission. Instead Gojo ends up on his back, staring up at someone who very much isn’t Yuuji.

 

Thick tattoos slowly materialize on the skin. A toothy grin greets Gojo when he finally looks up.

 

“Now what kind of alpha allows their mark to get the jump on him?” A gravelly voice, no panic. A cool, icy demeanor.

 

“Yet I’m still inside him.” Gojo grunts, prying the hands off his head finger by finger.

 

Sukuna laughs, pulling off and watching the blood and slick coated cock. A muted wet thud as it slaps against Gojo’s stomach. He leans closer to Gojo once more and smashes their foreheads together, further disorienting the sorcerer.

 

Sukuna gets between his legs fast, a wicked grin as he wraps his hand around Gojo’s cock and licking a stripe from the base to the tip. A hint of blood lingers on the curse’s lips.

 

“I didn’t expect to take a second broodmare but I suppose it’s the only justifiable punishment for what you’ve done.”

 

Gojo grits his teeth as the curse’s hand travels to his neglected cunt.

 

“My, my, my, just as I thought.” He mocks, pressing a finger into Gojo’s otherwise untouched hole. The sorcerer hisses at the uncomfortable stretch. “I’m afraid my vessel’s little cocklet won’t be enough for what I’m planning.”

 

Sukuka shoves a second finger into Gojo’s cunt, forcing a choked noise from him. It burns. The third finger being pressed in so soon after makes Gojo’s hips ache.

 

“You can’t be serious.” Gojo growls, only to be met with an even deeper, louder growl. A challenge. A demand to submit.

 

Gojo tries to fight his body’s willingness to submit to a prime alpha. Then something hot and heavy rests against his thigh. He looks down as fat veiny cock stares back at him, making his own length pale in comparison.

 

“Oh Satoru, you touched something of mine, made him spill tears meant for me. How else can I punish an infraction like that?”

 

Gojo watches him stroke the length, watches it thicken. His body salivates at the prospect. A fog of prime alpha scent permeates. Blood and earth and something dark is in the air.

 

“I took you for many things Satoru, a whore was not initially one of them.” Sukuna licks his lips, corner twitching as he curls his finger.

 

Its too much, Gojo’s vision goes spotty for a moment. Sukuna releases him for a moment before one hand settles on his throat, a harsh warning squeeze as the curse’s tip breaches him.

 

The tearing as its forced in is unlike any pain Gojo’s felt before. It’s a white hot burn, like he’s being split apart and sewn together in one swift movement. Drool drips onto his cheek, pulling him out of whatever distance he was trying to put between himself and Sukuna.

 

The pace is slow, almost gentle. The wet sound is mostly blood, although Sukuna insists he’s creating slick. Gojo fights, pushing and grappling with the curse. Sukuna just chokes him through his disobedient spells until he nears unconsciousness before releasing.

 

A wet slapping sound and hedonistic laughter fills the room alongside Sukuna’s scent. Its hours before the curse releases his neck momentarily to lick and prime Gojo’s scent gland for a claim.

 

When the teeth sink into his flesh the air is sucked from Gojo’s lungs. Its not even the claim. The curse bit into his clavicle, he's playing with him. The claw marks he’s leaving mean nothing to Sukuna. All injuries he’ll heal before returning the reigns to Yuuji.

 

Maybe it’s a trick of the eye but the king of curses looks massive above him when Sukuna sits up. His brutal pace never wavering, even as blood drips from his lips onto Gojo’s face.