Work Text:
Latin: the moon alone as witness
Yuuji was infatuated with the omega's scent.
He couldn't help it. The boy smelled heavenly. Rick and thick, masculine, yet so sweet with youth.
Ripe.
When Yuuji first saw his nephew, he spaced out a bit. The omega was a growling little menace. But oh, so undeniably cute. The pink hair, so infamous in their family, pretty blue eyes squinting at him with suspicion, and a button nose, scrunching as the boy took in his scent.
"I can't believe a loser like you is my relative."
That was the first thing that Sukuna, his thirteen year old nephew, said to him.
He guessed it was somewhat true. Yuuji had exiled himself from their family for 15 years, moving to China and escaping being stuck in his family's business. Jin and their granddad had built quite an empire in his absence. His older brother was always ambitious, so it tracked, he guessed.
Yuuji wasn't like that. He wasn't keen to establish himself in the family business, even if Wasuke kept pushing him into it since he was an alpha. But as Jin took the reins, Yuuji just left, traveling the world and finally settling in China.
Now that his older brother passed, his kid was in Yuuji's custody.
Yuuji knew that he had a nephew but never came back to meet him. He never really cared to have his own kids, but once he learned that his brother passed away in a car accident, he felt pity. The boy was probably heartbroken and devastated, Yuuji thought.
Not exactly.
Sukuna seemed very independent. He had spent a few weeks alone, taking care of everything by himself before Yuuji came back and moved into Jin's house. He was furrowing his brows a lot and even growling at his alpha if the man crossed his boundaries within the house unknowingly. With time, his distaste subsided, and he started to tolerate Yuuji in his space, though his snarky comments and bickering hadn't stopped.
They visited the family memorial together more out of courtesy than out of sorrow. While Yuuji didn't really have strong relations with his family, he had expected the boy to show more emotions given how traumatic it could be to lose a parent at such a young age.
But Sukuna wasn't grieving like a normal kid would.
Yuuji thought he'd miss his father, but the boy only scoffed.
"His driver was a bigger dad to me than he was."
His mother hadn't been in the picture since his birth and Sukuna seemed to dismiss her completely, not even mentioning her name as they drove back. So there was that.
As for Yuuji, he had lost his mind.
Maybe his loneliness made him like this. Maybe he hadn't been with an omega for so long that he forgot the way their pheromones could lure an alpha in. Or maybe something was really messed up with him.
Because when he smelled his nephew for the first time, a deep aching unfurled in his chest. It was odd and pulsing, like an open wound would be, and the only thing that soothed this restlessness was Sukuna's scent. At first, it struck him in the chest, the scent filling his lungs, cloying and thick. He somehow regained his composure and managed to not make himself look like a fool in front of his teenage nephew who already was skeptical of him.
He had dismissed it the first week, convincing himself that it was a temporary thing that would dissipate after he'd gotten used to living with the underage omega under one roof.
But it just got worse.
His cock twitched in his pants whenever he caught a whiff of Sukuna. His gums hurt as his fangs elongated just from the taste of it in the air. Whenever the omega was in the vicinity, Yuuji was buzzing, smelling him.
It wasn't normal. Of course it wasn't.
But.
Little Sukuna was tantalizing.
It was only them in the house. Yuuji was working from home, unfamiliar with the business but trying his best, and Sukuna was homeschooled like the spoiled brat he was. His scent was everywhere in the house, tickling the alpha's nose. He even growled at one of his teachers that showed up smelling like of rut. It had turned into a whole "situation," and ever since, only scentless betas were allowed to teach Sukuna, who only shrugged and rolled his eyes at him.
Yuuji was struggling. Coming back home, he hadn't expected to be smothered in a young omega's pheromones; it came to the point where he started to crave skin contact, reaching out to get his hands on the small body. His muscles tensed in anticipation before he grabbed onto a tight waist and nuzzled the omega's neck.
An uncle's affections, huh.
The cute little omega, snarly and mouthy, would push against his chest, but the alpha's eyes would roll back into his skull once his tongue laved over the scent gland and gathered that mouthwatering fragrance.
An unusual uncle's affections. Questionable, but nothing too crazy for an alpha in his forties wanting to protect and scent his baby nephew. Sukuna grumbled that he acted like a dog, but Yuuji didn't care. He needed to smell him every minute of every day. And with time, the little omega stopped squirming, growing accustomed to his uncle's quirks.
That gave Yuuji grounds to feel him up.
Oh, and what a bliss that was.
As with all young omegas, his nephew was delectable. He was tall, all long gangly limbs, but despite being slim, his hips had that omegan thickness to them, a healthy layer of fat making them look grabbable. Prancing around the house in his shorts during the summer Yuuji returned, he was unintentionally dangling himself in front of the alpha, who ogled those strong legs because, of course, his nephew excelled in sports. His delicate ankles especially attracted Yuuji, so thin that he could grab them both with one hand and yank those legs over his shoulder when he roughhoused the boy, masking his touches on the thin waist. He could wrap both his hands around the omega's middle, completely enveloping the boy, who scowled with pink cheeks, breathless and a little angry that he'd lost again.
Sometimes Yuuji let his hands wander under thin shirts and tank tops, grabbing a soft chest. He was afraid he'd pop a knot one day with how incredibly tender those little tits felt under his greedy hands. They were so fat and squishy, with the omega's body getting ready for his first heat when he turned fifteen. When Yuuji dared to brush his palms against the full chest, Sukuna always gasped and shivered, stifling a moan as he scurried away from the alpha, cursing at him with bashful embarrassment.
The alpha would scold him for profanities, but he'd do it again every chance he could get. And Sukuna would curse at him all over again, but Yuuji saw how his cute nipples hardened under thin fabric.
It was mind-numbing how much Yuuji wanted him.
Sometimes he'd steal the boy's underwear while Sukuna was out of the house. Shameless, he'd grab the dirty panties from the omega's laundry room only to jerk off furiously at night, sniffing them. He could taste the omega's slick, still a bit watery as he hadn't matured yet, but still mouthwatering. The small wet spots had his utmost attention as he sniffed and licked, trying to catch every note of that divine fragrance. Hot cum spluttered over his hand and stomach as he came to the thoughts of the small belly bulge that had started to protrude on an otherwise flat belly. The womb was growing in Sukuna's little body, preparing for his first heat.
Yuuji couldn't wait.
Soon, he started visiting Sukuna at night.
It was amazing how a couple crushed sleeping pills could knock the kid out for up to thirteen hours. The alpha used those hours to get his fill of the little omega without scaring him away, as he would if he touched Sukuna too much while he was conscious during the day.
The closer Sukuna was to his heat, the harder it was becoming for Yuuji to keep himself in control.
Despite his vile attraction to his baby nephew, he wasn't cruel enough to traumatize the boy with too obvious touching. He chose the softer approach: hugs here and there, rough housing in their living room, nuzzling and scenting as a pestering "old man" who was worried for his nephew.
So far, it worked. Sukuna growled and snarled at him a lot, but with every bad touch and squeeze, the heat behind his indignation faded into mild annoyance. And it would work better if his body could start to recognize the alpha's touch and associate it with pleasure.
Even in his sleep.
Tonight was one of those days that Yuuji indulged himself.
Sukuna had been asleep for some time now, after their dinner and the cranberry juice he liked so much. He was already yawning when he went back to his room, leaving Yuuji to sip on his wine, counting down the minutes until the pills started working.
When he went upstairs, the sweet scent wasn't suppressed by the wooden door at all, teasing his sharp sense of smell with the tartness of cherry. The door was open, as always, and he slipped inside quietly.
His lungs filled with the wave of nectar that omega was emitting.
The alpha closed his eyes for a second, feeling arousal sparking under his skin and lighting up fire in his groin. Sukuna's room was soaked in his scent. Its particular musk filled the air and Yuuji moaned, realizing that the boy must have rubbed one out before falling asleep. The milky undertone was almost completely overpowered by the thick veil of the omega's arousal.
Sukuna was sleeping soundly, not knowing that there was a predator in his little nest.
His room was a typical teenager's room. Posters on the walls, a desk near a window, a soft looking chair in the corner. Two doors on the side, a wardrobe and a bathroom. A big bed at the far wall with moonlight falling on it from the open window. August was still hot and the little omega was almost naked, laying there like a feast before the alpha's eyes.
His pale arms were hugging a large pillow, the halo of his pink hair sticking up in every direction. Long legs were thrown over thin sheets, with one hiked up and accentuating the swell of his round asscheeks. Yuuji licked his lips, feeling his cock pulsating at the display of cotton panties under the cropped top that barely reached the omega's obscenely small waist.
He approached, pulling off his clothes and leaving them on the floor. His hard cock leaked precum, the knot pulsing faintly, eager to fill a wet hole. Holding his breath, the alpha let his fingers brush across a thin ankle. The warm skin under his fingertips sent goosebumps down his spine, and he put his whole hand on Sukuna's lean shin, feeling strong muscles.
The basketball practices were definitely good for the omega, shaping his body just right.
Yuuji slowly led his hand up, salivating at the smooth, soft skin. The omega was so delicate. The alpha had had a lot of people in his bed, seeking comfort in someone's arms and being someone's first, but none of them were as delicate as this boy. So dainty and small, even with his attitude of a grumpy cat and his strong athletic body. He seemed as though he would melt in the alpha's brutish arms if he squeezed him any harder, though he was barely touching him.
Swallowing, the alpha suppressed the growl of arousal bubbling in his chest as he reached for Sukuna's soft butt. The perky asscheeks were plump in his hand as he fondled them gently. Not able to resist anymore, he kneeled near the bed, and pushed his nose into the soft skin under the omega's thick ass cheek.
Sukuna smelled heavenly.
Sweet. Ripe. Untouched.
Yuuji nuzzled into the soft skin, obsessed with how pliant the muscles were under his touch. His nephew wasn't moving, the pills have put him into dreamless sleep, but Yuuji hoped he would be able to feel the throbbing in his cunt after the alpha was done with him.
His breath was calm and even, and Yuuji crooned at the innocence of the teen. Pulling off the panties, he held his breath. The plush asscheeks were even paler in the moonlight as the alpha, practically drooling, slipped the soft cotton lower. Twin mounds spilled deliciously out of the panties, and he hurried to touch the warm skin.
Sukuna's sweet scent rolled in waves as the alpha tugged the underwear lower, exposing more of omega's bottom. He had long forgone any morality, letting himself be carried away. The boy didn't have anyone but his uncle, a deranged alpha in his forties, preying on his innocence. The unsuspecting little thing was so addictively sweet with all his obnoxious huffing and puffing.
Something about Sukuna made Yuuji's inner alpha roar with delight and hunger.
So Yuuji stroke himself, nosing at Sukuna's soft skin and breathing deeply. He was rock hard, his knot aching as his balls were drawn up, his whole being anticipating a wet hole to fill. Suddenly Sukuna rolled on his back. His calm sleep wasn't disturbed as he sprawled in front of the alpha, his cunt bare and all Yuuji's to take. Delighted by the boy's new position, Yuuji crawled into omega's nest, sticking his nose into pink pubic hair. Eyes rolling back, he pulled himself away, wanting to smell every inch of the tight little body.
He shuffled up, cock smacking heavily on the soft belly as he tucked his nose into the crook of the thin neck first, chuffing in joy. He kissed and licked, laving the scent gland. His fangs dropped with want and he had to peel himself off the omega's neck. Instead, he licked and kissed pouty lips, pushing his tongue in and getting a taste of the soft mouth.
"Pretty boy..."
Then his eyes caught the swell of the omega's tits. Tugging the crop top all the way up to Sukuna's neck, Yuuji couldn't help but push his face between the twin mounds, licking and sucking on puffy nipples. Blood rushed in his ears as he nuzzled the fleshy chest, fantasizing about how the omega's tits would grow even more when Sukuna became pregnant. They would swell, making him wear the sports bras Yuuji had an inclination to buy for him, heavy and thick. Sore nipples would be hard all the time, irritated skin all red and wet with drops of milk, and Yuuji would be there to nurse them and kiss them better.
He wouldn't leave the omega alone once his heat comes. Yuuji would make sure to fuck a baby into him.
For now, he sniffed along the relaxed body that was pliant and soft against his. His hands wrapped around a tiny waist, mouth salivating as he nuzzled into Sukuna's soft belly. That small puffy spot on his navel made the alpha chuff in pleasure as he rubbed his face against milky skin. Shuffling lower, Yuuji moaned quietly, pushing his nose into the soft bush of pink pubic hair. Sometimes he wondered if Sukuna had grown sparse hair on his crotch too fast. Perhaps his aggression was based on high hormone levels that were pushing his body into maturity a bit early. But that was fine.
Yuuji wished he could speed that up even more, but this, too, was precious.
Sukuna was deliciously responsive. Even in sleep, his body knew how to react to the alpha's touch.
Omegas really were wired differently, the alpha thought, his mouth finding a thick clit. His lips circled a tender nub, sucking and he closed his eyes in bliss. Rolling his tongue, he licked broadly, flicking at the sensitive clit, and the raw taste of the honeypot pussy made him cum.
Shuddering, he brought lean thighs over his shoulders so he could push his face deeper and enjoy the taste of his baby nephew. His dick kicked under his stomach as he humped the sheets in desperation. Dizzy, he moaned and shivered, but hadn't pulled away.
Cum may have been wasted, but he couldn't care less.
His mouth was full of pussy.
He sucked and licked, drunk on potent slick and Sukuna's scent. Wetness dripped down his chin and neck as he nuzzled sloppily, drooling and slurping up the mess the little omega made in his sleep. His swollen vulva quivered and Yuuji hummed, sucking and probing with his tongue. More of the fresh slick pooled in his mouth, and the alpha rumbled in delight.
His lips stretched into a tender smile as Sukuna whined cutely in his sleep. Warm thighs shivered against his head and alpha sucked on the throbbing clit, finally making the omega come.
Sukuna's orgasm made Yuuji's knot throb.
He moaned, panting like a dog as the boy tensed up with pleasure, but still didn't wake up. Licking his lips, Yuuji pulled away, looking at what he did to the boy. His sweet pussy was thick with baby fat, even more so now, swollen with arousal. The chubby folds were dripping with translucent slick and his spit, making the alpha groan. He leaned in, pushing his tongue in just to feel the lustful clenches of the greedy hole. It quivered in orgasm, squelching with slick, and Yuuji's cock twitched with need. Pulling up, he lay down next to the omega, rolling the unconscious body on its side. The alpha crooned, pulling a long leg out of the way. With trepidation, he reached between pale thighs and cupped the tender pussy, feeling it pulse against his palm.
Sukuna mewled in his sleep, vulnerable, and somehow it made Yuuji's cock even harder. The alpha buried his face in the pink hair. The scent hit him tenfold, tart and sweet like cherry, with undertones of milky innocence.
The alpha chuffed, not able to prevent the approving rumbles from escaping his chest. Pushing two of his fingers in, he heard Sukuna smack his lips in his sleep, slurring something under his breath. His warm body shivered with arousal, pressing back against Yuuji, and Yuuji tucked his cock next to the dripping cunt that swallowed his fingers. He had barely stretched the boy when a low whine escaped Sukuna, leaving Yuuji breathless.
"...ojisan..."
He fucking knew it.
Hot gazes when he walked around the house in sweatpants. Red ears every time he came out of the shower in a towel. The crop tops. The obscene shorts. Lazy protests during their mock spars. The thick flares of his scent that gave away his shameful arousal.
Yuuji fucking knew it.
Sukuna was burning hot with lust.
The omega mewled, wiggling his butt in his sleep and trapping Yuuji's dick between his thighs. In his revelation, Yuuji pulled out his fingers, heart hammering in his chest. He wanted everything tonight, so he let it happen. Scorching pleasure singed his nerves when his cockhead caught against the hot entrance of Sukuna's cunt. Unable to resist, Yuuji pushed in. The tight cunt struggled a little and the omega whined in his sleep, but Yuuji was already in. He couldn't stop. Wouldn't.
Not when Sukuna was whimpering so sweetly.
"Ngghh... Mmm... Ojisan... Mmnghh!"
The alpha pushed in slowly, feeling slick wetting the entire length of his cock, and he was half way in when the omega suddenly jerked and trembled. A wet splash made Yuuji's hips stutter, and he thrust in, growling. Welcoming heat squeezed the daylights out of him, sucking him in. The eager hole clenched so tightly, alpha couldn't move, trapped inside the sweet pussy.
"Shh... baby, it's alright," he slurred, kissing Sukuna's ear and nuzzling his cheek. Yuuji's hand reached to rub slow circles into an engorged clit, making the omega's legs jerk from overstimulation. But the clamp of his cunt loosened just a bit, and Yuuji hurried to praise his baby nephew, pulling out and getting ready to push back in. "Good job, doll... Come on, let me in, Sukuna... Let me in..."
It was euphoric.
Yuuji shivered, holding the boy close as his hips pushed in and in and in, until his knot pressed into a small orifice that gobbled up his length so eagerly. A mixture of slick and cum made everything loud and filthy. He snarled at the clenching cunt and grabbed Sukuna's thin waist to fuck him better. Sukuna was heaving in his sleep, slurred moans leaving his panting mouth, once again confirming the alpha's suspicions. There was no explanation for why the teen's cunt was clenching and slicking up on his cock like the boy was already in his heat.
The little omega wanted it, subconsciously or not.
So he pushed deeper, growling into a sweet smelling neck as the teen whimpered. Turning his face to kiss him, the alpha saw tears rolling down flushed cheeks and he cooed, feeling his cock nudging into a soft spot inside. The boy gripped him greedily and Yuuji rolled his hips, making sure the omega took it all.
Like this, it felt like Sukuna was awake.
"Shhh…That's right, let me in, sweetheart…"
"Mmm! Mnn!"
He whispered praise as he moved his hips, slowly at first. It was hard to pull out, the tight wet heat of Sukuna's cunt barely letting him go. The small body was hot under Yuuji's roaming hands. Grabbing a slim thigh and pulling it out of the way, he fucked into Sukuna recklessly. The boy was limp in his hold, his sleepy wiggles were weak, and he trembled with every thrust, making Yuuji moan into sweaty pale skin, nipping Sukuna's thin neck.
"Good job, baby. You're gonna be so sweet in your heat... God... I can't wait... For you to bloom properly..."
The omega shuddered in Yuuji's arms with another orgasm, his pussy gushing all over the alpha's knot and balls. A wolfish grin tugged on Yuuji's lips. The abused cunt was drooling all over his cock, squeezing him tight, and with the way Sukuna's small whimpers turned into whiny sounds, the boy seemed to be having a damn good time too.
The soft smacks of Yuuji's knot against Sukuna's sopping wet pussy lips were sending shivers down Yuuji's back and he groaned, licking and kissing a pale neck. He lost himself in it, rocking into a sleeping body. His hands slipped on the soft stomach and he could feel himself moving inside. Hot walls were squeezing his cock, milking it for precious cum, and he panted, sweating. Sparks of an orgasm were already burning his vision, and he grabbed a handful of Sukuna's soft chest as he rutted tirelessly.
The omega's hole was a wet heaven. Yuuji drooled just thinking of how fucked out Sukuna would be. He'd wake up all sore in the morning, aching between his legs, and he'd probably chalk it up to pelvic cramps typical for omegas of his age. Or, perhaps, he'd have flashes of this night, his body remembering everything. He'd certainly lock himself in his room and drop back onto his bed, touching his wet cunt to the thoughts of his uncle's possessive hands all over his small body. Later, after a good orgasm, he'd come downstairs, all growly and pouty with red cheeks as Yuuji served them breakfast. He probably would screech and smack Yuuji for putting too much pepper into his omelet while the alpha would burn with the want of coming all over Sukuna's cute little tits first thing in the morning.
Yuuji would love to fondle Sukuna's cum soaked cunt the morning after, but sadly, he couldn't come inside.
Not yet.
Just the thought of it made him snap his hips harder, and finally, his knot started to unfurl. The heat of an orgasm washed over his body, leaving him a trembling pile of limbs as he pulled out, coming on Sukuna's wet quivering pussy. Yuuji's knot throbbed as it released cum, and Yuuji huffed, running his fingers through the hot mess of the omega's cunt. He rubbed it all over, feeling how the hot hole was clenching with displeasure from being left open and loose like that. Without the satisfying fullness of a knot, Sukuna groaned in his sleep, and Yuuji wished he could just wake him up in the morning to lick and kiss where it was empty before fucking a new load into him right after.
But not now. Maybe when Sukuna confronted him with all the lost panties. Or caught Yuuji touching him inappropriately.
The alpha wished.
Wished for Sukuna to wake up with his cunt stretched open for him to shove his dick inside. And get him all snarly and bitchy before he turned thirsty for his knot and was fucked stupid right into his heat.
For now, the alpha rubbed Sukuna's sweaty thigh, bringing it back on the bed. His hand snaked down to the flushed cunt, and it was hot under his touch, wet with slick and Yuuji's own cum. The urge to lick and taste the omega on his tongue won, and he slithered down.
In the moonlight, his nephew's sweet pussy was a sight.
It was ruined with his seed, white splashes oozing from the messy pubes, a gaping hole still quivering with the need to be full, and he kissed the chubby mound, marveling at its softness. He sucked on a peaking clit, feeling pale thighs shake, and he smiled as he lapped at the ruined pussy with broad licks.
He needed to clean the bed properly. Spray some scent neutralizers to cover his presence and make what had happened disappear. At least, physically, as he was sure the little omega would feel him for days, blushing and looking at him with those pretty feline eyes.
But the alpha indulged a bit more, wishing small hands would press his face deeper between pale thighs.