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Jin would kill Sukuna if he knew what he was doing.
Kaori would roll over in her fucking grave.
It’s been a while since Jin invited Sukuna over to stay the night in his tiny, two-bedroom apartment, but loneliness had been eating away at him. Sukuna’s been seeing it on his face for months.
Sukuna doesn’t often stay the night with his brother. Usually, he just comes over for a few drinks, then hails a cab to take him home because Jin refuses to let him drive. Every now and then, however… every once in a blue moon… Jin will just offer up the couch to him so he doesn’t have to make the long drive back.
Sukuna’s own apartment is in the city. It’s nice, and he gets onto Jin frequently for not just coming over to his place instead, but he gets it.
Jin’s a self-proclaimed hermit. He doesn’t like leaving his home, and it’s only gotten worse since his wife died. Kaori had done wonders for Jin’s social life, but now that she’s gone, he’s got no one to push him out of the front door to go make friends. No one to drag him along to get-togethers and social outings. No one to help him keep those already dwindling relationships going while he’s alone.
That’s where Sukuna comes in. Sukuna’s easy to invite over. Jin’s known him his whole life. Sukuna’s only a few minutes older than him, and they’d been close as boys. Despite growing apart as soon as they’d reached young adulthood, they’d drifted right back together as soon as Kaori decided to up and fuck off to the afterlife.
And in any case, Sukuna’s nice to have around. He’s not loud or chatty like many of Kaori’s shrill-voiced friends she liked having over, but he knows how to keep the conversation going when it starts to lull and Jin loses the ability to find new and exciting things to talk about.
With Sukuna, everything’s new and exciting. Sukuna knows his brother likes listening to him talk, so sometimes, that’s all he does when he comes over. He kicks back on the balcony alongside his brother, he drinks whatever Jin brings out from the fridge inside, and he talks.
Well… those three things, and he spends time with Yūji.
Jin had been delighted when Sukuna had first started to take a liking to his son, toddling around the kitchen while his favorite three adults drank and laughed with each other. Jin had honestly expected Sukuna to start hating the kid once he started really talking, but even as Yūji began learning how to string proper sentences together to talk everyone’s fuckin’ ears off, Sukuna didn’t back away.
He engaged in Yūji’s meaningless little conversations about his favorite weekly superheroes and least favorite weekly classmates. He nodded along, commented, listened. Truly listened.
Sukuna’s attention made Yūji feel special, and Jin couldn’t have been happier about it.
That’s probably why Jin didn’t bat an eye when Sukuna shrugged at Yūji’s proposal to let his “favorite uncle” (and only uncle) sleep on a mass of blankets on his bedroom floor when Jin first asked Sukuna to stay the night. He’d already set it up anyway, and wouldn’t Suku-oji have so much more fun sleeping in his room than in their living room all alone?
Sukuna had only smiled when Jin began looking hesitant, fearing Yūji’s adamancy on the subject would work only to annoy Sukuna.
“I would have more fun there, wouldn’t I?” Sukuna nodded seriously, quirking a brow to make it look like he was really thinking the matter over in a distinctly grown-up way. “What do you think, Jin?”
Jin looked so pleasantly surprised that Sukuna thought he was going to start crying then and there. He managed to keep himself composed and nodded along with Yūji, saying, “Well, then, be my guest. It seems Yūji’s already got it all figured out.”
Ah, Jin… how trusting he’d always been.
How utterly fucking naïve.
Yūji’s humming a repetitive little tune as he situates himself on his bed with all of the stuffed animals he’d pulled out of his closet to show to Sukuna, and Sukuna can’t help but sigh contentedly as he sits with his back against the wall on the blanket pallet Yūji had carefully arranged for him.
“It’s been a while since you came to spend the night, Suku-oji,” Yūji says from atop his makeshift stuffie nest. Like a little bird, Sukuna thinks to himself offhandedly as he tilts his head and smiles at the boy.
“It has,” he agrees. “How old were you when I was last here to spend the night? Four? Five?”
“Five,” Yūji confirms, “because I’m seven now and it was two wintertimes ago. Because I remember it was cold and you told Papa he should’ve gotten you more blankets for the couch. That’s why I made your bed with so many blankets now. Because I don’t want you to get cold.”
“You say ‘because’ a lot.”
Yūji frowns.
“Is that bad?”
“No,” Sukuna smirks a little. “Just think it’s cute, s’all.”
“It’s not cute!” Yūji says, a bit too loud for comfort. “It’s just how I talk!”
Sukuna raises his hands in mock defense, “I wasn’t making fun of you, brat. It was a compliment.”
“I don’t know what that word means.”
Sukuna’s smirk deepens.
“Means I’m telling you you’re cute because I like you and I want to make you feel good.”
“Oh,” Yūji responds, realizing abruptly that perhaps if that’s what ‘cute’ means, he shouldn’t feel so strongly against it. “Then it’s okay, I guess.”
“Hah!” Sukuna cackles to himself and pulls the pillow from the far end of the pallet, tucking it behind his back to shield his spine from bruising against the drywall. Jin can be heard down the hall, shuffling around his bathroom and getting himself ready for bed, so it’s much too early now to start anything.
But Sukuna can look, and look he does,
Yūji’s shameless. He doesn’t even take his pajamas to the hallway bathroom to change; he just pulls his shirt and shorts off and changes into them on his bed, right in front of Sukuna’s face. The display goes right to Sukuna’s cock, and he can’t help but dip one of his hands down between his legs for a few moments to grip at himself. He’s got to tide himself over somehow, or he’ll be acting much too quickly and will wind up getting himself caught.
He pulls his phone out when he feels it buzz against his ass in his back pocket, and opens the thing up to a text from Jin.
Otōto: Let me know if staying in Yuu’s room is too much and I’ll get you a place set up on the couch. He can be a bit chatty lol
Sukuna huffs to himself amusedly and shoots a text back.
Sukuna: It’s no problem. He’s winding down.
Otōto: Great. I’ve got to be up at 7 tmrw morning so I’m going to go ahead and try to get some sleep. You can just let yourself out in the morning, but I’ve got eggs and pancake mix in the kitchen if you feel like making yourself and Yuu something before you leave. The pantry and fridge are also free real estate
Sukuna: You’re leaving him here alone tomorrow? I thought you only worked weekdays.
Otōto: I thought so too but the manager’s been fucking everyone’s schedules up recently so.
Otōto: Yuu will be alright, I’ve told him if he needs anything to just call me on the home phone I set up in the kitchen. It’s sweet you’re worrying about him though
Sukuna: Get some sleep, then. I’ve got breakfast for Yūji covered tomorrow.
Otōto: Thanks, I love you
Sukuna: Love you too.
Sukuna shuts his phone with a click and sinks back against the wall a little to think.
Since when had Jin felt comfortable leaving Yūji at home? Perhaps it’s a new development. Kaori only passed a year ago, so he’s had to pick up the slack in her absence to keep Yūji in that prissy private school he’s always been so adamant on keeping him in. Jin and Sukuna had both been sent to a public school when they were boys, and Sukuna had thought it’d been perfectly fine. But Sukuna had also been a bully, where Jin had been the one being bullied, so perhaps he’s got more of a reason for wanting his son in a private school than Sukuna would if he had his own kid.
Leaving Yūji at home, though… Sukuna could just wait until tomorrow. Wipe out the risk of being walked in on.
But… the risk is also what makes it good.
He likes knowing that Jin is just down the hall, soon to be sleeping soundly while his son is engaging in things no one of his age should be.
And even if he is caught, what’s Jin going to do about it? He loves Sukuna, and only God knows what the two of them used to get up to when they were around Yūji’s age anyway. They’d been fooling around with other kids, fooling around with each other, being fooled around with by their own parents… it’s a rite of passage in their family— one that Sukuna’s sure Jin had always meant to break. But a rite’s a rite, and one generation’s not enough to breed the monster out of any of them, including Yūji.
Sukuna knows the boy has got to have something wrong with him, being related to Jin— and himself, by extension. No one in the Ryōmen family is normal, though Jin likes to pretend he is. That’d been why he’d taken on Kaori’s last name when they married. He didn’t want anything tying him to the messed up, fucked up, nightmarish bloodline that he and Sukuna came from.
His attention drifts back over to Yūji again, sitting on his bed with his head bowed, murmuring his prayers before he gets ready to go to sleep like a good boy. Sukuna’s heart flutters in his chest.
Fuck… what a gift.
There’s no way Jin hasn’t thought about it himself… not with Yūji looking and sounding how he does. Sukuna’s no saint, but Jin isn’t, either.
Hell, Jin had been the one coming to Sukuna halfway through the third year of his marriage, begging him for help because he’d just gone out, gotten drunk and fucked a man. Sukuna had never seen him so distraught over anything before. He’d had to knock him out with a handful of allergy pills just to get him to calm the fuck down about it.
Yes… Sukuna knows Jin doesn’t go out because he hates going out.
But he also knows he doesn’t go out because he can’t trust himself not to do anything like that again.
Even now, as Kaori’s six feet under, he refuses to search around for anyone to sate his roaring libido. Sukuna knows how it is because he and Jin really are identical in every way. Their only difference had been their decisions— Jin had gone out to marry a woman because he thought he’d prayed the gay away, and Sukuna had never been so stupid as to delude himself to think that he could do the same. It’d been proven to him that night that Jin came to him in tears about cheating that Jin had been powerless against it, too.
Sukuna’s inferences about Jin had been proven right on every occasion, so he’s sure he’s not too far off in assuming Jin’s love for his son isn’t as innocent as he’d like everyone else to believe it is.
“Whatcha thinkin’ about, Kuna?”
Kuna. Yūji’d started calling him that a few years ago, and it’d been Sukuna’s favorite nickname since. Despite its innocent tone, the way it sounds rolling off Yūji’s tongue is downright sinful.
“Your father,” he answers honestly.
“Papa?”
“Mhm.”
“What about Papa?”
Sukuna hums, thinking for a second as he listens out for any signs that Jin’s still up. When he decides he’s not, he turns to Yūji and grins, showing all of those sharp teeth and beaming when Yūji doesn’t shy away from him.
“I was thinking about our childhood.”
“Oh!” Yūji’s face lights up and he pulls his covers up to his chin as he looks at Sukuna with those big, golden eyes. “Like when you were my age?” He looks like he’s readying himself for some sort of action-filled bedtime story.
Cute.
“Yeah,” Sukuna says. “Your dad was real cute when he was your age, too. You two look a lot alike.”
“People tell me that a lot,” Yūji nods. “They don’t think I look like Mama at all.”
Upon the mention of his mother, his expression dampens a little.
But Sukuna, being the benevolent man he is, is quick to pick him right back up.
“Your father and I used to love exploring when we were younger, you know. There was a creek behind our house that we used to go catch fish in. We didn’t have any fishing rods because our parents were broke, so we had to catch the fish with our hands. I was always better at it than your father.”
“No fishing rods? That’s not possible.”
“Yeah it is,” Sukuna chides, “if the fish are small and stupid enough.”
“That’s not a nice word.”
“What, are you gonna tell Papa about it?”
The glint in Yūji’s eye matches the spark Sukuna feels in his chest when their eyes meet, and he knows then that he’s got this boy exactly where he wants him already.
“Nuh uh,” Yūji shakes his head mischievously, giddy at knowing he and his ojisan are going to have a secret that just the two of them can keep.
“Good boy. I knew I could trust you.”
“Yeah, you can trust me,” Yūji repeats his words back to him like he’s afraid Sukuna’s going to forget. “I’m good at keeping secrets.”
“Yeah?” Sukuna smiles. “You like secrets?”
“Mhm! Tell me another one!”
Yūji’s buzzing out of his skin with excitement, and Sukuna decides it’s either now or never.
No one ever got anywhere being a coward. Jin’s proof of that.
He pushes himself up off the wall and takes a seat on the edge of Yūji’s bed. Yūji, sensing he’s about to be let in on something big, sits up, his blankets still wrapped around his shoulders like a shawl and his hair mussed already from where he’d been lying on his pillow.
“How many other not-nice words do you know?”
Yūji blushes at this, the heat rising vividly to his cheeks making Sukuna’s heart race.
“A few…”
“Which ones?”
“Um… Papa says I’m not allowed to say them because they’re grown-up words.”
“Pfft,” Sukuna snorts. “I’m sure as hell not gonna tell him.”
“That’s one,” Yūji says, then repeats the word “hell” softly, making his blush grow heavier. “Uhm… ‘stupid’ is another… uh…”
He looks like he’s waiting for Sukuna to draw his hand back and slap him for having such a dirty mouth, but when Sukuna just props his chin up on his hand and tilts his head, waiting for Yūji to go on, he gains a little more confidence.
“I know ‘jerk,’ ‘pissed off,’ ‘dammit,’ ‘gay—’”
“‘Gay’s’ a bad word?”
“Well, yeah,” Yūji says, looking a bit confused. “All the boys at school call each other that, and Papa says it’s not nice. So I’m not allowed to say it.”
“Figures.”
“What’s that mean? Is that another bad word?”
Sukuna laughs.
“No, that just means your father’s a bit of a hypocrite.”
“What’s th—”
“Means I’m smarter than he is,” Sukuna answers before Yūji can finish his question.
“Oh.”
Sukuna can tell Yūji’s not fond of hearing people talk badly about Jin, so he moves on quickly.
“So are those all the bad words you know?”
Yūji screws his little face up in concentration.
“I’ve heard Papa say other ones, but I can’t remember what they are. They sound really weird, and he doesn’t say them a lot, but I can tell they’re bad words because he always says them when he’s angry and he always apologizes after and tells me not to say them or I’ll really get in trouble.”
“Hm…” Sukuna puts his hand back down on the mattress and leans in. Yūji mirrors him and leans in, too, curiosity written all over his face and wondering if Sukuna knows what he’s talking about. “How about ‘fuck?’” His voice is low and his tongue catches wetly on the roof of his mouth at the end of the word, making it sound like it sounds when he’s chanting it out in the dark of his own room back at home, hand on his cock and head tilted back in pleasure.
The way he says it seems to get to Yūji a little, too, because he squirms a little and answers back in a whisper: “Yeah, that one.”
“Yeah? You’ve heard your father say that one before?”
“He usually yells it.”
“Usually?”
“Well…” Yūji frowns, “he always yells it.”
Damn. Sukuna’d been wondering if Jin had raised a voyeur, but either the kid doesn’t spend his time spying on what his father does when he thinks he’s alone or Jin just whispers it out so quietly that it can’t be heard through the wood of his bedroom door.
“Is that the only mean word he yells?”
“Yeah. He doesn’t get mad a lot.”
“Hm,” Sukuna taps the mattress with his finger. “I guess that’s good.”
“What’s another one?”
Sukuna’s almost surprised by how invested Yūji is in learning all of the vulgar things one can say, and he reaches up to ruffle Yūji’s hair.
“You’re not gonna go out and say any of these to your classmates, are you?” he asks jokingly. It’d probably be funny if Yūji went out and did exactly that, but then he’d most certainly be caught and sent home, and Jin would have to begin to wonder who was influencing him in such a way.
“I promised not to!” Yūji says, voice still lowered into an almost-whisper. “Now, what’s another one?”
“Demanding little brat, aren’t you?” Sukuna snickers, but he relents. “Do you know ‘cock?’”
This is the first word Yūji’s confused by, and the heat in Sukuna’s stomach swells when the boy tilts his head.
“I’ve never heard that one. What’s it mean?”
“Mm… I don’t know, Yūji, I’m not so sure I should tell you that much…”
It’s like the boy’s whole world’s been shattered right in front of his face. His eyes grow as big as dinner plates and he scoots even closer to Sukuna— until his knees are pressed right into Sukuna’s thigh, the little tease— and begs.
“Please, Kuna? I promise I won’t tell! You can trust me!”
“I can trust you?”
“Yeah!”
“Then, in that case…” Sukuna watches, elated, as Yūji’s eyes go even wider as he grabs him through his sleep pants. “This is your cock.”
Yūji startles and shuffles back quickly, closing his legs and pulling the covers up over himself again.
“That’s my privates, you can’t touch that!!”
“A little too loud, Yūji,” Sukuna scolds him softly, and Yūji shrinks a little, embarrassed that he’d let himself get so overwhelmed when he’d promised to be good. “And hasn’t anyone ever touched you there before?”
“Nuh uh,” Yūji shakes his head. “Only Papa when he’s giving me a bath. He says I’m not supposed to let anyone ever touch there, only Papa when he’s cleaning.”
Oh, Jin… Sukuna thinks to himself with a shit-eating grin plastered to his face, you pervert.
“He’s right,” Sukuna shrugs. “You shouldn’t.” Yūji’s very thoroughly confused; it’s a wonderful expression on him. “You know you’re also not supposed to be saying bad words though, right?”
Yūji bites the inside of his cheek. His ojisan’s logic is irrefutable. And… he has been enjoying sharing secret things with him, so… perhaps this is just another secret Yūji will be entrusted to keep.
“Yeah…” he says, his voice small.
Sukuna pushes a little harder.
“How about you, though?” he asks, and based on the way Yūji’s confusion grows, he knows he’s about to be given the pleasure of explaining it to him. Fucking hell. “Have you ever touched yourself there?”
“Well…” Yūji thinks for a moment, then lets his guard down a little more by dropping the blanket and bringing his legs up to cross under him. “Yeah, when I’m taking baths.”
“How about when you’re not taking baths?”
“What do you mean?”
“Have you ever touched it by yourself, when no one’s around to watch you?”
“Uhm…”
Despite being two or three feet away from the boy, Sukuna can see gooseflesh rise on his skin.
“Oh…” Sukuna coos. “You have, haven’t you?”
“I’m not supposed to. But…”
Fuck. This kid really trusts me this much?
“But?”
“Sometimes.”
“Yeah?” Sukuna pets Yūji’s knee soothingly, pushing through the little jolt Yūji gives when his hand first meets his pants leg. “Because it feels good?”
Yūji, face downcast, nods.
“Papa caught me once and told me never to do it again or I’d be grounded.”
“Did you do it again?”
Yūji looks like he’s torn between telling the truth and lying to get out of the scolding he knows Sukuna probably isn’t going to dole out. Sukuna remembers how horrifying it’d felt being walked in on by his own father. Honestly, despite how red Yūji’s face is, he still seems to be doing better about the guilt than Sukuna ever did at his age.
After a few beats, Yūji nods again.
“I don’t know what you’re so embarrassed about,” Sukuna says conversationally, retracting his hand to lean back on the bed. “Your father does the same thing when he’s alone. And so do I.”
“What?”
Sukuna laughs.
“Yeah, what else do you think we were born with these damn things for?”
“Privates?”
“Yeah.”
“I dunno…” Yūji scratches at his arms. “Like… for peeing.”
“‘For peeing…’” Sukuna repeats, rubbing his hands over his face in disbelief. “Jesus fuckin’ Christ.”
Yūji’s still a little ball of anxiety when he looks back over at him. Seeing such an energetic boy look like this almost breaks his heart… but he’s twitching in his pants and getting harder and harder with every passing minute; there’s no place for what little morals Sukuna may have here.
“Can I touch it again?” he asks, and Yūji bites his lip.
“I dunno. I… I don’t want Papa to be mad.”
“He’s not going to be mad,” Sukuna reassures him. “How’s he going to find out unless you tell him? Plus, I’m the one who asked, so I’d be getting in just as much trouble if I told him, too.”
“Well…”
Sukuna gives Yūji another moment to mull it over. His fluffy pink hair falls messily in his face as he thinks, and Sukuna thinks that if he looks hard enough, he can see the cogs turning behind Yūji’s pretty eyes. He really is troubled over this.
That’s no matter. He’ll help him change his mind.
Sukuna shuffles over and situates himself in front of Yūji, crossing his legs under him like Yūji is and running a hand through his hair again to calm him.
“It’ll feel good,” he says placatingly, slowly letting that hand trail down the side of Yūji’s cheek and neck to rest at his collarbone. “I promise.”
“O-okay.”
“Mm… that’s a good boy.”
Sukuna lets his hand drop into Yūji’s lap, but he doesn’t go straight into it. He takes his time, touching and squeezing the fat of Yūji’s thighs and petting over his knees to ease him into the feeling of being touched by someone so much bigger.
And then, he can’t wait any longer.
He softly runs his thumb over Yūji’s tiny little cocklet through his pajama pants and uses the pads of his fingers to scratch at the underside of his balls. It’s a bit difficult doing both at once because of how taut the fabric’s been pulled in this position Yūji’s sitting in, but he’s managing.
And fuck, Yūji’s perfect.
The boy’s jaw trembles slightly, stuck between wanting to snap shut and go slack, and his eyes are fixed on Sukuna’s big hand grabbing him through the thin, patterned cloth. His breathing’s picked up a fair bit, and it isn’t long before he’s flying forward, gripping at Sukuna’s arm to get him to stop.
“Kuna, it—”
“Mm?”
“My pee pee, it— it feels funny.”
“It does?” Sukuna feigns ignorance. “What does it feel like?”
“I don’t— I don’t know.”
Sukuna squeezes him a bit harder and watches as his face contorts in a wince, then withdraws his hand.
“Was it too much?”
“N… um… n-no…”
Yūji’s squirming has kicked up a notch, and he’s making a show of grabbing at his knees, clearly trying to keep his hands off of himself.
Sweet thing… Sukuna licks his lips. I’m going to fucking destroy you.
“Pull your pants down.”
“Huh?” Yūji spooks, but Sukuna doesn’t relent.
“Go on. It felt good, didn’t it? Don’t you want it to feel even better?”
“Kuna, I dunno…”
“Don’t you trust me?” Sukuna cups his cheek. “Hm? I thought we were sharing secrets.”
Yūji squirms harder, squeezing his eyes shut as his hands— oh, those blessedly small, incredible, wonderful little hands— slowly make it to his pants and hook under the hem.
He never makes it further than that, though, so Sukuna takes it upon himself to help him along.
He grabs Yūji’s hands gently and lifts him up onto his knees, pulling his patterned pajama bottoms and briefs down to his thighs in one go.
Yūji’s prick is standing up on its own, and Sukuna has to enlist the help of every god he knows is out there in various religious books he never believed in to help Yūji sit back down in a comfortable position before he swallows him up whole like a fucking shark.
But after that, Yūji will be all his.
He leans forward and gives the boy a chaste little kiss on the cheek, making him giggle despite his nervousness, and tells him to put his hands in his hair.
“Like this?” Yūji says as he threads those lithe little fingers through Sukuna’s soft pink hair— the same shade as his own and his father’s.
“Just like that, Yūji,” he breathes, then sinks down.
Yūji gasps violently as Sukuna runs his tongue along his tiny length, and his hands immediately tighten like vices in Sukuna’s hair.
“That’s—!”
“Hm?” Sukuna hums, placing a kiss on the tip of Yūji’s cockhead.
“That’s dirty!”
“Didn’t you just take a bath earlier today?”
“Yeah, but I… I peed before bed!”
“Ah…” Sukuna chuckles, then sucks the thing into his mouth for a moment, just to get a taste of him. “Doesn’t taste dirty.”
Yūji’s panting above him, holding so tight to his hair that he honestly thinks Yūji could rip it clean off his head if he really tried. Yūji’s prick is twitching against his cupid’s bow, and then it’s twitching against his chin when he raises his head slightly to look up at the boy from his lap. He has to adjust his positioning when he does this, so he moves his legs out from under him and lies down on his stomach. His own hard cock digs into the front of his slacks (he hadn’t brought a change of clothes because he honestly hadn’t expected Jin to offer for him to stay the night) and he has to bite back a moan as he feels the zipper catch along pulsing skin.
“It feels good though, doesn’t it, Yūji?”
“Y… yeah…” he huffs, face flushed to hell and back. “It doesn’t taste like pee?”
“No,” Sukuna says, giving it another lave with his tongue. “But I wouldn’t mind even if it did.”
“That’s gross!”
“Yūji,” Sukuna says, bringing one of his hands up to cup Yūji’s balls as he looks up at him, “you could piss in my mouth and I don’t think I’d have a problem with it.”
At this, Yūji can’t hold back his laughter. It’s like Sukuna’s told him the funniest joke in the world, and of course, boys— even ones in the process of being traumatized for the rest of their lives— will be boys. Of course talking about piss would set him off.
“Kuna, you’re gross,” he says, prick twitching against Sukuna’s face as he laughs.
“Yeah, a little,” Sukuna agrees, giving Yūji another grin before turning his face down and sucking him back into his mouth.
The feeling of Sukuna’s soft, hot mouth is overwhelming for Yūji, but even so, it appears he can’t get Sukuna’s comment out of his mind, because he keeps giggling as Sukuna sucks him.
And maybe Sukuna’s high on adrenaline, but Yūji tastes like cinnamon and sweet, creamy vanilla to him. He tastes like the air you suck in from inside your scarf on a frigid winter day and he smells like how warming your frostbitten hands up by the fire feels after coming in from the snow.
He tastes like Sukuna’s childhood, he realizes— Jin must be buying him the same soap they’d used as children.
Yūji suddenly goes very still and quiet, and for a moment, Sukuna wonders if he’s hurt him somehow. But then, all of that sweetness is replaced by an acrid, bitter warmth spraying across his tongue, and he almost chokes in his surprise.
Oh, fuck… fuck! There’s no fucking way.
Sukuna hurriedly grabs Yūji by the ass and pulls him in closer, moaning deeply in his chest as he sucks down everything his nephew gives him.
Yūji’s pissing in his mouth. Yūji’s pissing in his fucking mouth!
Yūji still seems to think there’s something funny about it, because he huffs out a half-hearted little laugh as he relieves himself, hands pulling Sukuna’s face into his crotch like he knows he’ll get in big trouble for wetting the bed if he lets Sukuna pull back far enough to spill it.
But Sukuna wouldn’t dream of spilling something so precious… not when it’s being given so willingly to him. And Yūji must have been lying when he told Sukuna about peeing before bedtime, because he still hasn’t stopped. It’s nothing Sukuna can’t handle, especially since Yūji’s still a bit nervous and his stream keeps petering in and out, but it’s more than he thought he’d be taking down when he’d first began drinking. His head’s swimming in arousal because of it and his hips are grinding down against the mattress before he can stop himself.
“Mn—” Yūji moans breathlessly, and Sukuna’s eyes roll back in his skull under his fluttering eyelids. “Feels good, Kuna…”
“Mmhm,” Sukuna hums through his nose encouragingly, his Adam’s apple bobbing as he swallows. His fingers dig into Yūji’s backside, and finally, the boy’s prick twitches a few times and spurts a little more out and he seems to be finished.
Yūji seems to notice Sukuna’s hesitancy to pull off, because he murmurs, “‘M done,” after a few moments.
Sukuna sucks his cocklet clean with a “pop” and pushes himself up quickly to cup Yūji by the back of the head and slam his mouth into his.
Yūji very obviously isn’t expecting it because he all but yelps into Sukuna’s mouth when he’s kissed. His hands flail about for a few seconds before curling in Sukuna’s shirt and attempting to push him off, but of course, it’s to no avail. Sukuna’s drunk on him, now— to hell with going slow.
“You filthy fucking boy,” he hisses in between sour kisses, shoving his tongue into Yūji’s mouth and sucking Yūji’s tongue into his own mouth when it attempts to push Sukuna’s out. “Deciding to take a piss while I’m suckin’ you off… no warning… no nothing. Filthy.”
Yūji whimpers as Sukuna bites down on his bottom lip to suck the residual piss-taste from it, and his eyes are brimming with bewildered tears when Sukuna pulls back.
“It tastes bad!” he sobs.
“Yeah?” Sukuna sneers, leaning in to lap at Yūji’s neck as he grinds himself against the bed. “I think it tasted fucking incredible.”
He grabs Yūji’s prick again and starts stroking him off quickly with three of his fingers.
“I’m gonna make you cum, next, Yūji,” he huffs against Yūji’s jaw, placing wet, open-mouthed kisses along his jawline and jugular as he sinks back down to take Yūji into his mouth again.
Yūji’s seeing stars when Sukuna begins sucking him again, and it’s all he can do to blink away the tears and find his purchase by fisting his hands in Sukuna’s hair again as he gets closer and closer to being overtaken by a feeling he’s never felt before.
“Kuna—” he pleads erratically, legs trembling on both sides of Sukuna’s head as he bobs his head in his lap. “Kuna, wait, wait, I— I’m gonna pee!” Sukuna snorts to himself— at least the kid’s deciding to have the decency to tell him, this time. Of course, he’s got an idea that’s not what’s about to happen anyway. “It’s not funny anymore! My pee pee feels really weird, Kuna, you hafta stop or I’m gonna pee in your mouth again! Kuna— Kuna, please!”
Sukuna growls, the vibrations running along his tongue and down the length of Yūji’s prick, and then, Yūji’s cumming.
Sukuna has to reach a hand up quickly to muffle him because Yūji cries out, unable to stop himself. His massive hand slaps itself over Yūji’s mouth and Yūji sobs into his palm as his prick spasms and spills a thin, translucent spend over Sukuna’s tongue.
Sukuna swallows this down, too, and when he finally drains Yūji of everything he can and comes up for air, Yūji’s lips are puffy and his cheeks are rosy and his eyes are glistening with tears.
“Fuck, baby…” Sukuna huffs incredulously, “look at you.”
“Did— a-are you mad at me..?” Yūji stutters out through violent, tear-ridden hiccoughs.
“No, Yūji, I’m not mad,” Sukuna says, pulling his knees up under himself again and quickly undoing his belt. He’s not being rash— he knows he has the stamina to go multiple rounds. He had wanted his first orgasm to be in Yūji’s mouth, but it’s gonna take too long to convince the kid to put his mouth on his cock without screaming out for his father and Sukuna needs to cum now.
He gets his belt undone but doesn’t even bother taking it out of the loops before he’s shoving his pants down to his knees and pulling his aching cock from his boxers. Yūji watches, even through reddened eyes, with rapt attention as Sukuna takes himself in his hand and starts furiously jerking himself. He doesn’t take his eyes off Yūji once.
“Fuck,” he chokes out, digging his nails of his left hand into the sheets and jacking himself off as quickly as possible. “Yūji— hahh… Yūji, come here.”
Even though he’s made no move to hide how closely he’s watching Sukuna, Yūji still shies away a little when he’s asked to come closer.
“Come on, brat, come here. Be a good boy for me, Yūji. No, don’t give me that shit right now, come on. Be good and come here, come kiss me again.”
Yūji hesitantly shuffles over, pants low on his hips from where he’d pulled them up a little, and leans in to kiss Sukuna right on the corner of his mouth.
“Little further down,” Sukuna grits his teeth, and Yūji, bless whatever gods may exist above, obeys. His soft, plush lips kiss at his jawline, and then, once he senses he’s done a good job, he cranes a little lower and begins kissing at the side of Sukuna’s neck. “Fuuuck, that’s it. Right there. Right there. Fuck, fuck, fuck… oh, fuck, I’m gonna cum, Yūji, keep— fuck!”
Yūji pulls back when Sukuna begins orgasming, and his eyes grow wide. Sukuna jerks himself violently, head so full of static that he doesn’t realize Yūji’s not staring at him.
He’s staring past him.
Sukuna’s hips twitch as he empties the last bits of himself onto Yūji’s fluffy, baby blue blanket he’s got strewn out over his quilt, and the feeling that he’s being watched from behind finally settles in.
A bit late, but… well.
He sighs to himself. Perhaps it never could have been helped.
He smirks and lets himself fall backward on the bed, head only slightly hanging off the end as he takes in Jin’s form in the doorway, illuminated softly by the nightlight that’s plugged in in the hallway.
“Sukuna…”
Yūji’s quick to rush to aid his favorite uncle, bellowing out tearfully, “Papa, it’s not his fault!”
But Jin isn’t listening. His eyes behind his glasses, eyen upside-down, are wet and round with betrayal, and he seems not to know exactly how to stand on his own two feet, because he’s bent forward slightly and clutching onto the doorway so he doesn’t collapse to his knees.
“Sukuna… what the fuck are you doing?”
“Hahh…” Sukuna laughs mirthlessly, his still-exposed cock softening on his thigh. “I’m teaching your kid bad words.”
Jin reaches into his back pocket and Sukuna’s heart stops cold in its cage.
“No, no, hold on, don’t call the c—” he quickly pulls his pants up and leaps to his feet, but Jin puts a hand out and for once, Sukuna backs down.
Jin doesn’t seem to be dialing anyone, though, and a moment later, Sukuna feels a buzz in his pocket. He pulls his phone out and drops back down onto Yūji’s bed (which Jin grimaces at, but doesn’t exactly tell him off for— verbally, yet, at least).
Otōto: I’m texting so I don’t scare Yūji any more than you already have. Give me one good reason I shouldn’t call the cops and have you put in jail for the rest of your life
Sukuna looks up at Yūji, and he’s wrapped himself back up in his blankets. He’s staring down at his light blue blanket, still under his uncle and at the tacky white stain he left there, and his lip is trembling.
Sukuna: You should probably call the cops if you know what’s good for you and your kid.
Otōto: Yeah I think I’m going to
Sukuna: But that would mean never seeing me again. Yūji would never get to see me again, either.
Otōto: Isn’t that the fucking point. I don t want you around anymore. I trusted you. You’re just like father
Sukuna: Yeah, but so are you.
Otōto: What the fuck does that mean
Sukuna: Yūji told me about what you do with him during bathtime. And I know you, Jin. I know you better than anyone else and I know you better than you know yourself.
Otōto: You don’t know shit
Sukuna: I think I do. You think you’re the only one who gets to be immune from whatever disease runs in our fucked up little family? You’re not special.
Otōto: You’re full of shit. I’m calling the cops
Sukuna: Alright. Look me in the face and tell me out loud you’re not hard in your fucking pants right now.
As soon as Sukuna’s eyes meet his brother’s, he knows he’s won. Jin’s eyes are cold… harder than stone behind those thin, half-moon glasses he wears. His hands are in fists by his side and Sukuna thinks that he’s never seen him look so furious in his life. He can’t quite see his pants that well from where he stands in the shadows, but he doesn’t need to.
“I’m not,” Jin says, but it’s weak and his voice cracks on the last word.
The corners of Sukuna’s mouth turn up as he starts typing again.
Sukuna: You still haven’t rang them. And you also still haven't called Yūji over to you. He’s sitting next to his rapist and you haven’t moved a muscle to defend him. I think that says more about you than you wish it did.
Otōto: I’m trying not to scare him!
Sukuna: Great job with that, by the way. Just look at him. He didn’t look like this before, and now he looks terrified.
Otōto: Because of you. Because of what you did to him, whatever the fuck that is
Sukuna: You and your son have the same speaking quirks. It’s cute.
Jin growls and shoves himself off the doorway, disappearing down the hall. Sukuna just sits, waiting for the inevitable next text he gets from him, because it’s obvious he’s not going to call the cops. If he’d planned on it at all, he would’ve done it by now.
Otōto: What did you do to him
Sukuna: I sucked his cock and let him watch me masturbate.
Sukuna, snickering to himself, can hear the sound of a socked foot attempting to kick itself through the wall a few rooms over, and he sighs. A few moments later, after a bit of a cooldown and probably some muted cursing over a broken toe, Jin texts again.
Otōto: Anything else
Sukuna: I kissed him.
Sukuna: And I let him piss in my mouth.
Otōto: Jesus fucking christ
Otōto: I’m not going to be able to sleep the rest of the night sukuna. Or ever again for that matter. I have work tomorrow. What the fuck were you thinking
Sukuna: I just assaulted your son and you’re worried about your stupid ass accounting job?
Otōto: NO, IM WORRIED ABOUT YŪJI!
Otōto: YOUVE PROBABLY FUCKED HIM UP FOR THE REST OF HIS LIFE! I DONT EVEN KNOW WHAT IM SUPPOSED TO DO ABOUT THIS. IM BESIDE MYSELF. YŪJI IS MY SON AND YOU HURT HIM AND IM FUCKING BESIDE MYSELF
Sukuna: I didn’t do anything you haven’t thought about doing yourself before.
Otōto: Yeah fucking right you’re full of shit. You’re a fucking piece of human garbage and you’re full of shit Sukuna
Sukuna: Are you going to come back in here or are you going to hide in your room the rest of the night?
Jin doesn’t answer.
“Is Papa mad?” Yūji’s quivering little voice breaks through the silence. It’d been so silent that even though Sukuna had been texting Jin about him, he’d almost forgotten Yūji was there.
Almost.
He can still taste Yūji’s spend on his tongue, so he couldn’t quite forget.
“No, he’s just being stupid,” Sukuna responds with a sigh.
“Papa’s not stupid,” Yūji sniffles half-heartedly, but Sukuna can see how badly he wishes to agree with him instead, because disagreeing means agreeing that his father’s anger is justified.
“Maybe not,” Sukuna laughs softly with a roll of his eyes. “But he’s not mad either. He thinks he is, but really, I think he’s just jealous.”
“Jealous?”
“Yeah.” Sukuna shoots a mischievous look at his nephew, who’s still wrapped up in his blankets. “He wishes he could make you feel good like I can.”
Yūji drops his gaze back to his hands, which are squirming in his lap. His cheeks are still dusted with a light, rosy pink— evidence of the pleasure that’s still draining its way from his body after such a violent orgasm— and Sukuna, even in such an already damning predicament, can’t help but lean forward and press a few soft little kisses to both sides of his face.
It feels good, being soft with someone like this. It’s not something he does with anyone. It’s not even something he did with Jin back when they were fooling around as boys, but something about Yūji compels him. Showing him such “kindness” in the midst of all this horror brings him a twisted kind of pleasure he’s never known before. He has to be gentle with him, lest he scare him away for good. Now that he’s gotten his hooks in him, he can’t be too careless or Yūji will run off with the bait and never come back. He can’t lose what he’s just stolen for himself.
Jin pads back into the doorway as Sukuna’s running a thumb over Yūji’s cheeks, wiping stray tears away as they fall. He looks defeated. Tired.
“I’m sorry, Papa,” Yūji shivers under Sukuna’s touch. He’s not able to quite meet his father’s eyes, so Sukuna does it for him. Jin stares right back at his brother as he whispers out to Yūji brokenly, “It’s not your fault, baby. You’re not in trouble.”
Jin’s been crying, too. His eyes are puffy and red, and his cheeks are ruddy.
“Did you call them?” Sukuna asks.
He raises a brow when Jin comes into the room a little further and shuts the door behind him, falling into it and bringing a hand up under his glasses to press against his eyes.
“No,” he responds, defeated.
“Are you just going to stand there like a watchdog for the rest of the night?”
Jin lets his hand fall back down and tucks it into his pocket, adjusting his pants from the inside and pulling it back out to rest idly at his side. Sukuna can see it now. The light emanating from Yūji’s little bedside lamp is dim and warm, but there’s the unmistakable outline of a hard, leaking cock in Jin’s sleep pants.
“I can’t…” he swallows, looking daunted. “I can’t stop you.”
Sukuna smiles.
“So you want to watch instead?”
Jin looks away with a wince, biting the skin of his bottom lip raw. He crosses his arms tight across his chest, digging his fingers into his sides through his shirt.
“I called out of work tomorrow. I’m not going to be able to make it.”
“Did you, now?”
“Yes.”
Sukuna scoffs. He wishes he had a job he could just call out of at a moment’s notice. Must be nice.
“If you really aren’t going to call the cops,” Sukuna says, “I’m gonna fuck him.”
Jin shudders audibly through an open, trembling mouth. He looks like he’s about to cry again, and he still won’t meet Sukuna’s eyes.
“I… I know.”
“Jin…” Sukuna says slyly. “You’re not going to send me home and cut me off after this, are you?”
Jin bites his lip so hard it bursts, and a line of blood runs down his chin. He hurriedly wipes it off with his sleeve, staining the grey with crimson.
“No, Suku-nī.”
Sukuna grins. “Good boy.” Then, he turns to Yūji. “See? I told you he wasn’t mad.”
Yūji still doesn’t look like he believes him, and he can’t stop picking at his nailbeds. Sukuna slides the blankets off from around his shoulders and runs his palm down his side, making him shiver, and Yūji finally turns his attention back to him.
“What are you going to do now?”
“Hm…” Sukuna hums, stroking a thumb over the boy’s hips. “I think I’m going to take your virginity.”
“Is Papa okay with it?”
He doesn’t even ask what Sukuna means by “virginity.” He’s too young to understand the word, but here he sits, worrying about his father instead of himself.
How sweet of him. How selfless of him.
How terribly, utterly horrifying for him.
“I think so,” Sukuna says, then turns to look back at Jin over his shoulder. “You’re okay with it, aren’t you, Otōto?”
Jin doesn’t answer, but that’s all the confirmation Sukuna needs.
He really is just going to stand there and watch, isn’t he?
Sukuna slips a hand under Yūji’s chin and tilts his face up, leaning down to kiss him again on the mouth. Yūji falls back easily when Sukuna pushes him down into the bed and climbs over him. He smiles against Yūji’s lips as he hears a dull thud behind him— the sound of Jin dropping his head back against the door harshly in frustration— and starts working the boy’s pants back off.
“I bet you’re tight,” Sukuna murmurs as he tosses Yūji’s pants and briefs over the side of the bed. Yūji’s still soft, but Sukuna’s sure he’ll be able to get him worked up once he gets his fingers in him.
He hadn’t really been planning this when he’d first come over— he’d really just expected Jin to have him over for a bit for drinks and then send him back on his merry way home. But a little voice in the back of his head had compelled him to bring lube with him just in case, and now that he’s hovering over Yūji, hovering over his twitchy, pink little hole, he’s glad he listened.
Before he goes any further, he leans down like he’s going to suck Yūji off again. Yūji seems to think that’s what he’s doing, because he doesn’t bat an eye until Sukuna sinks even lower and swipes his tongue through his asscheeks.
“Kuna!” he cries, hands flying out to hold Sukuna by the head again. He knows by now that attempting to convince Sukuna to keep his mouth away from his privates for germs’ sake won’t do anything, so he just lets his little mouth fall open in a half-pleasured, half-uncomfortable grimace as Sukuna kisses and sucks at his opening.
He doesn’t quite taste as good here, but Sukuna doesn’t mind; he doesn’t taste bad by any stretch of the imagination— just tastes like skin and musk. He dips his tongue as far as he can into the puckered hole and uncaps the lube in his free hand, pouring some onto his fingers to start warming it as he gets Yūji used to the feeling of having something digging around such a sensitive place. He gives one last kiss to the little pink hole, now wet and shiny with spit, before pushing himself up on his elbows and rubbing the lube over the same place to mix with the saliva he’d left there.
“Suku-oji, that feels really weird.”
“I know, Yūji,” Sukuna coos, rubbing his fingers in circles, “but you’re doing so well. You’re being such a good boy.”
“Really?”
“Mhm, really. Now, brace yourself, alright?”
“Brace?”
Yūji’s mouth falls open in a gasp as Sukuna breaches him with his pointer finger. Just a little— but it’s obviously enough to scare the hell out of him.
“Take it out, take it out, I don’t like it!”
“Come on, brat, push against it. Push against my finger, Yūji, it’s almost in. You’re almost there, yeah?”
“No, I hate it!”
Sukuna rolls his eyes.
“Come on, it’s not that bad.”
“I don’t like it, I don’t like it!!”
Yūji may truly not like it, but it’s certainly not hurting him or he’d be really crying out in pain. Thankfully, it’s all too easy to placate him, because when Sukuna takes his soft prick back into his mouth, he stops complaining and goes quiet again, instead focusing on breathing out through his nose and humping his hips up into Sukuna’s face.
Little brat.
He uses his leverage and pushes his finger in further, and Yūji’s hole tightens around him as he winces. Now that must’ve hurt a little, but it’s obviously not enough to pull Yūji out of the pleasure Sukuna’s giving him with his tongue. He starts pumping his finger in and out, building up a slow, steady rhythm, and moves down a little to suck at Yūji’s balls.
“Nnghh…”
With his left hand, he shucks Yūji’s shirt up to expose his chest, pinching lightly at his nipples and squeezing the baby fat of his stomach and pecs. Yūji’s chest is hot and covered in a thin sheen of shimmering sweat, and he can feel the developing muscles underneath rolling as he pleasures himself against his uncle’s face. His cocklet is wet with spit as he ruts it over Sukuna’s lips while the man sucks on his balls, and before long, he’s squirming and beginning to shake.
Sukuna quickly uses his distract as an opportunity to shove another finger in, and Yūji howls as he’s stretched beyond what he’s ever been used to. He’d been able to map out Yūji’s insides while he’d been getting him used to his first finger, so now, he’s able to pacify him by going right for his prostate.
Yūji babbles incoherently, choking himself on muddled sentences that Sukuna can’t make out, and suddenly, his little prick is twitching fiercely and spurting out clear ejaculate into Sukuna’s face.
Sukuna takes his time with the second finger, scissoring Yūji open in slow, methodical movements as he lets him calm down from his second orgasm of the night. If he’s wanting to get one more out of him, he’ll have to stay steady.
After Yūji’s breathing’s calmed down and Sukuna’s gotten him used to two fingers, he eases a third in.
And Yūji takes it beautifully.
His orgasm had loosened him up, all of that tenseness draining out of him as he sank back down from his high, and he doesn’t even complain once as Sukuna spears him on three of his long, thick fingers.
At some point, Sukuna glances back at Jin again. The man hasn’t moved. He’s still standing with his arms crossed and his cock straining against the front of his pants, looking just as troubled as before.
“Aren’t you going to do something about that?” Sukuna nods towards his twin’s erection.
Jin shifts in place, shrugging uncomfortably.
“You should.”
Sukuna leaves it at that and continues his ministrations, working Yūji wider and wider until finally, he deems him ready.
When he pulls his fingers out, Yūji gapes, but falls limp. He’s relieved that his uncle seems to have finished “taking his virginity.”
Poor boy, Sukuna thinks as he sits up on his knees and shuffles his pants down just enough to pull his cock back out. We’re not even close to being done.
He pours lube over himself generously, not bothering with warming it up in his hand first, and strokes himself to full mast. It doesn’t take long— not with Yūji laying on his back with his legs open for him like that— and then, he’s pulling Yūji closer and leaning over him on all fours, spreading his legs as far apart as he can on the mattress so that he can reach him with his cock.
“Kuna..?”
“Shh, Yūji… it’s gonna feel good.”
“Why are you—”
“We’re gonna have sex,” he interrupts softly in answer, kissing his cockhead to Yūji’s hole as he coats every bit of his cock in slippery lube. “We’re gonna fuck, baby.”
“Is that..?”
Sukuna follows Yūji’s line of sight and finds him staring nervously at his cock.
“Yeah,” he says, stroking himself a little harder. “This is gonna go inside you.”
“What?” Yūji starts squirming, trying to push himself up the length of the mattress but to no avail— Sukuna’s got him trapped, so he can’t go far. “It’s not gonna fit in there! I don’t want it!” Sukuna sighs.
Again, with the impertinence. Isn’t it getting tiring?
“I don’t want it, I don’t want it, I don’t want your pee pee inside me, I don’t—”
“Yūji,” Sukuna warns, his voice shaky with lust, “be quiet. You’re going to like it. Alright?”
“No I’m not! I don’t want it!” Then, he turns to yell at Jin over Sukuna’s shoulder. “Papa, tell him to stop! Papa, please! I don’t want his pee pffmghh—”
Sukuna slaps a hand over the boy’s mouth, muffling his protests and shooting a look back at Jin to gauge his feelings on the matter. Not that it’ll make a difference, but it’s always nice to see.
Jin’s looking at the floor, only barely keeping himself on his feet.
“Sukuna, just…” he starts, choking on his brother’s name. “Please don’t hurt him.”
“Hah,” Sukuna grins. “I won’t.”
And he pushes in.
Yūji screams under his hand and thrashes wildly, feet kicking out and attempting to shove Sukuna off. Getting the fat head of his cock in is difficult, but after a few moments, he shrugs his hips forward a little more and it pops right in.
“Oh, f…”
Yūji’s just as tight as he imagined. He’s soft and warm, too— sucking him in like a toy. Sukuna is as careful as he can be, trying his best to keep Yūji as comfortable as possible with a hand on his mouth and a thick cock pushing its way into his guts.
Even though he’d taken his time (more time than he thought himself capable of, honestly) opening him up, getting himself sheathed is still a task. Yūji’s panicking, and with that panic comes the inevitable tightening of the hole Sukuna had just worked so hard to loosen up. Once the head of his cock is in, he doesn’t move for a few minutes, kindly letting Yūji get adjusted to the feeling of something so big inside him.
Yūji’s gone from clawing at his chest to clawing at his hand, and Sukuna chuckles at his efforts.
“Do you want me to take my hand off your mouth?”
Yūji nods frantically, those amber eyes wide with tears.
“Are you gonna be a good boy and stop screaming if I do?”
Yūji nods again, desperate.
Sukuna relents and takes his hand off, wiping it clean of Yūji’s saliva on the bedcovers, and Yūji, blessedly, obeys him.
“Kuna,” he whimpers, his lashes fluttering as he takes deep breaths in, “I don’t like it.”
“I know, Yūji,” Sukuna purrs, leaning all of his weight on his elbows and kissing the side of Yūji’s neck. “It’ll feel good in a few minutes. You trust me, don’t you?”
Yūji hesitates. He’d trusted him up until now, but it’s clear that his terror has begun tainting his judgment.
Still, after a moment, he nods.
“Good,” Sukuna says, peppering his jaw and pulse point with kisses and biting his earlobe softly when he reaches it. “I’m gonna move now, so put your arms around my neck.”
Yūji obeys, and Sukuna’s neck is encircled with two skinny, shaky little arms as he starts slowly canting his hips. The movements pull shuddering whimpers from Yūji’s bitten lips, and he screws his eyes shut as Sukuna begins humping him shallowly, pushing more and more of himself in with every thrust.
He wonders what Kaori would say if she were here. She probably wouldn’t be saying anything, honestly— she’d probably be busy beating Sukuna’s shoulders with her fists and demanding he let her son go. That, or she’d be strangling Jin for not doing shit about anything.
He hadn’t thought he'd be able to get all of himself inside, but after a few minutes of trying, he does. Yūji is clutching his neck like a lifeline, seemingly afraid that if he lets go, he’ll go crashing through the sheets to his death, deep within the fiery pits of Hell down below.
“How’s it feel, Yūji? Good?”
Yūji shakes his head.
Sukuna’s going to have to try a little harder.
He spreads his legs a little more and grinds up into that spot he’d found earlier, and suddenly, Yūji lets out the prettiest, tiniest, most seductive moan Sukuna’s ever heard in his fucking life.
“Ohh, there it is, baby. Did that feel good?”
“Uhhuh, felt— mmn! Kuna…”
“Tell me how it feels, Yuu. Tell me what my cock’s doing to you.”
He uncaps the lube and pours more onto his cock and Yūji’s, slathering the stuff messily all over their union and the insides of Yūji’s thighs. He kneads Yūji’s little cock and balls and works him back to life, picking his pace up and fucking into that tight, wet heat faster and faster.
“Feels good,” Yūji murmurs, dizzy under Sukuna’s efforts and completely fucking out of it. “Making me— ah! Hahh…”
“Yeah? What else?” Sukuna pants. Even though he’d finished once earlier, he’s not going to last long this time. His balls are slapping against Yūji’s ass lewdly and it’s getting lube everywhere— they’re definitely going to have to clean these sheets before Yūji sleeps here again.
“Feels like I’m gonna pee again in a minute,” he slurs, spit dripping down his chin and pooling in his collarbones.
“Feels like you’re gonna pee again?” Sukuna repeats back to him mockingly, but Yūji doesn’t even notice. He’s thrusting his little hips up in time to meet Sukuna’s, taking Sukuna’s cock like a professionally trained whore. “Gonna cum on my cock, brat?”
“Uhhuh, uhhuh!” Yūji nods as his hair falls into his face. Sukuna leans his shoulder into the bed for leverage and brings his aching right arm down to grip at Yūji’s hips, pulling him up and down his cock like he really is nothing more than a sex toy.
“Say it, Yūji. Say you’re gonna cum. Tell me who’s making you feel like this.”
“Kuna, Kuna, Kuna, please—!”
“Say it!”
“You’re gonna make me cum, Kuna! I’m gonna cum, I’m gonna cum, I can’t—” His words are littered with hysterics, like he's seconds away from bursting into pieces. “Kuna! Kuna, I’m gonna pee, you’re gonna make me pee again!!”
“Fuuuck,” Sukuna growls, fucking into Yūji with all the energy he has as Yūji tightens around him and spills into his hand with a high-pitched, broken scream.
His hips stutter, the muscles in his stomach tense, and then he’s cumming along with him, pulling Yūji’s hips flush against his own as he empties himself inside of him with a long, guttural groan. There isn’t much room left inside Yūji, so sticky, white semen spills out around Sukuna’s cock and onto the bed as he pumps the boy full of it.
His head’s spinning when his high finally rolls over and he pulls out. If he wasn’t already practically laying on top of Yūji, he’d be passed out. He’s grateful he’s paying attention, though, because he almost misses Jin’s bitten-off whimper from behind him and the soft sound of jizz pittering onto the carpet.
“Fuckin’ freak,” he huffs to himself through a sick smirk. Whether or not Jin hears him, he doesn’t know.
When he pushes himself up and turns around, Jin’s already gone.
“There you go, sweetheart. Good boy. Take a few more sips for me, yeah?”
Yūji tilts his glass of flavored milk up and drains the rest of it, washing the pills down with the taste of strawberries.
Pancake batter sizzles behind Sukuna on the flat-top, and the wafting aroma of maple and vanilla fills the air around them comfortably.
Yūji shifts in his seat again, wincing.
“Ojisan, it still hurts.”
“I know, Yūji,” Sukuna says, ruffling the boy’s hair before going back over to tend to their breakfast before it burns. “Give the painkillers a little time to work.”
“When’s it gonna work?”
“I don’t know,” Sukuna scoffs, checking the undersides of the pancakes to see if they’re ready. “Maybe an hour?”
“An hour’s too long!” Yūji wails, but Sukuna pays him no mind as he flips a few of the pancakes over.
He’s surprised when Jin walks into the kitchen. He’d fully expected him to stay locked up in his room for the rest of the day.
“Morning, Otōto.”
Jin doesn’t acknowledge him, instead going over to Yūji and taking a seat at the table next to him and taking his face softly into his hands to kiss his cheeks and brush his hair out of his eyes. He can’t quite hear what they’re saying— Jin’s voice is low— but he catches a few phrases.
“...what’s wrong with…”
“...Yūji, I told you…”
“...he didn’t…”
“...staying…”
“...baby, Papa’s got a lot to get done…”
“...’s why I said that…”
“...Yūji, baby…”
Jin sighs, and Sukuna hears that loud and clear.
He leans up against the counter next to a plate full of pancakes and crosses his arms inquisitively. Jin finally looks up at him, eyes baggy and dark, and says, “Yūji wants you to stay for a while.”
“What’s a while?”
Jin shrugs, and Sukuna snorts. Jin can play this off as Yūji’s idea, but he knows exactly what he’s asking for.
“Missing your wife, Otōto?” he snickers.
Jin grimaces. “Yeah. Something like that.”
Sukuna smiles. He’ll have to go back home to get some of his things, but—
“Sure. I’ll stay.”