Work Text:
When Megumi first saw Sukuna's dick, his first thought was: oh, wow. The second was, more surprisingly: how useless.
The King of Curses lies below his feet, His Highness kneeling on the murky waters of his domain. It's quiet enough to hear a pin drop, and yet Megumi can still hear the telltale heavy breaths of the man below him, can tell, even without touching, that goosebumps have arose all over his body.
And fuck, he wants.
Sukuna shifts in place, looking uncomfortable. Unsure. Megumi clicks his tongue - that won't do. He bends down to Sukuna's level, one hand tilting up the curse's chin. Sukuna's gaze meets his, and Megumi thinks he could get used to this, get used to seeing the King of Curses at his feet, flushed and bare and wanting, all for him.
"Good." He murmurs. Megumi steps back, looking away to hide the smile that forms on his face when Sukuna visibly chases after his touch. It's a delicate play of cat and mouse, this arrangement. Megumi wouldn't have it any other way. "Go on, touch yourself."
Sukuna looks up at him in a hurry. Megumi raises his brow, his feet nudging the inside of Sukuna's thighs as if to pry them open. The curse's face visibly heats up, and his hands make their way towards his half-hard cock, hesitant.
"Oh, Sukuna," Megumi purrs, and walks behind Sukuna, his fingertips trailing at his nape, to his shoulders, to the small of his back. His touch is featherlight, carressing each and every inch of Sukuna like a myriad of tantalizing kisses. Sukuna shivers underneath his hold. "You know that's not what I'm talking about."
"Megumi," God, Megumi almost groans at the weak sound, Sukuna's voice smaller than it has ever been. A rush of power and possessiveness thrums through Megumi's veins, whispering that this is his, this is his alone, Sukuna is his alone.
"Hm?" He hums, his breath ghosting over Sukuna's neck. Megumi takes a moment to lick at the soft flesh, gently biting down as if to make a claim. Sukuna trembles under his touch but it isn't enough, and Megumi has to remind himself to wait, to savor this sacred moment. "Can't do it yourself, Sukkun?"
"Megumi." Sukuna repeats, his fingers digging into his palms as his hands form into fists. Megumi gently pries them apart, interlacing their fingers together. He wants Sukuna to enjoy this. The last thing he wants is to add unnecessary tension to the curse.
"Relax, Sukuna." Megumi says, voice firm, coaxing. He places a kiss on Sukuna's shoulder, patiently waiting for the curse's muscles to go lax against his hold. "I got you." Once he's satisfied, he kisses the crown of Sukuna's head as a reward, before getting to work.
It's safe to say that there isn't exactly much in Sukuna's domain. Aside from the bloody waters under their feet and the mountain of skulls, there's not really many options for places where he can fuck Sukuna - safely, that is. Which, of course, leaves the throne.
Megumi allows himself to grin, a feral thing stretching his usually impassive face. Sukuna can't see him like this - it doesn't matter, though the curse would probably like seeing him in this state, curling on the edges of unhinged, aching for him in his entirety. "Sukkun, take us to your throne."
Within a second, Megumi's transported onto Sukuna's throne, Sukuna snuggly placed on top of his lap. Shaking off the surprise fairly quickly, Megumi snakes one hand around Sukuna's waist, the other coming up to pull down the curse's nape. He kisses Sukuna, loud and messy and like he's made up his mind to devour him. Sukuna kisses back with a likeminded fervor, until Megumi reaches down to touch the base of his rim and the curse goes rigid, going docile enough to just take what he's given.
"Are you nervous?" Megumi asks, his other hand now tracing the pretty tattoos on Sukuna's face. Sukuna scoffs, but doesn't say anything, not even giving the effort to look at him. "Oh? Is His Highness feeling shy?"
"Brat." The King of Curses growls, his grip on Megumi's shoulder tightening. Megumi only smiles up at him, continuing the languid, little circles he's drawing on Sukuna's rim. He wants to make Sukuna beg for it.
"It's okay," He soothes, like he's cooing at a scared puppy. Sukuna's face burns , his eyes widening a fraction. Megumi notes the reaction for later. "I'll take care of you. Tell me what you need."
"You fucking -" Sukuna cuts himself off, scowling. "You know what I need. Get on with it."
Megumi stops his motions all at once, and ceases touching the curse. Sukuna freezes, looking down at him with a cute, surprised expression.
"Cute." Megumi's pushing his bondaries way too fucking far. And he loves it. Loves the reminder that it's only him that can do this. "Sukkun, be a good little curse and tell me."
Sukuna - 5'8 of pure muscle and wrath Sukuna who's absolutely not little in any way - looks like he's torn between cleaving Megumi's head clean off his shoulders and just using the rest of his body like some sick fucktoy, or actually going through with it.
To Megumi's delight (and surprise), he chooses the latter.
"Fushiguro, if you don't put your fingers or your stupid cock in me right this second -"
Alright. Not exactly what he was looking for, but he'll take it.
True to his word, he presses his finger in slowly, slowly. Up to the first knuckle. He continues the gentle motions until he has two, long fingers inside of the curse, pumping in with vigor, going progressively deeper every time -
"Fuck!" Sukuna jumps, a gasp ripping its way from his throat as Megumi bumps up against... something . Electricity sparks through Sukuna's veins, the pleasure almost overwhelming. "Do it again." He hisses, and who was Megumi to deny his king?
He rubs slow, maddening circles against Sukuna's prostate, adding a third finger for good measure. Sukuna trembles underneath his touch, face buried into his shoulder and his fingers clutching at his back. The curse's nails dig into his skin, and he feels his skin break, blood flowing through. It's going to be a bitch to deal with later, but for now, all he really wants is to fuck Sukuna, so it doesn't matter.
Megumi waits until Sukuna is on the edge of coming undone, before he finally quickens his pace, thrusting up inside of the curse in swift, scissoring motions, hitting his prostate every single time.
"Shit, you-" The curse above him trembles, attempting to sit up. "Slow. Fuck, I'm going to- slower- ah!" Megumi's hand is there to pull him back, curling his fingers at the same time. Sukuna honest to god let's out the most heavenly moan Megumi has ever heard, back arching into a delicious curve as he comes with a shout of his name.
"Good," Megumi praises him, his clean hand running through Sukuna's hair, nails lightly scratching at his scalp. Sukuna moves forward a bit, causing him to brush against Megumi's own hard, neglected cock. The man hisses, but continues stroking, easing Sukuna from his release. "I wish you can see yourself like this. We should put a mirror here, sometime. So you could go and watch yourself, see yourself like I see you."
Megumi leaves open-mouthed, messy kisses all over Sukuna's neck and chest, looking at how it falls and rises rapidly. He thinks the curse looks the most beautiful like this, covered in a thin sheet of his own sweat, disheveled hair and flushed cheeks, eyes closed shut and his pretty, bitten-red lips parting to let out small huffs of air. "Want to make you look at yourself coming undone, painted in white. You're so beautiful, do you know that?"
"Shut the fuck up." Sukuna pants, though Megumi can spy the slight curl of his lips. "Less talking, more fucking." The curse takes matters into his own hands, clawing at Megumi's pants until the fabric is rudely ripped off. Megumi only guides him, his hands holding onto Sukuna's waist as the curse lines up his cock with his entrance.
"Take it slow," Megumi soothes in the same tone as earlier. This time, Sukuna skips to hiding his face into Megumi's neck, before slamming down, taking all of Megumi's cock at once. The warm flesh engulfs him, clenching and unclenching rapidly. Megumi's surprised moan is covered by Sukuna's muffled scream, his cock smearing pre-come all over Megumi's clothed stomach. It's no easy feat, because well - it's not like Megumi wants to brag, but he's certainly not small.
"Shit, Sukuna." He hisses, rubbing comforting shapes on Sukuna's sides. Sukuna releases a broken sound, kind of like a sob. Megumi frowns, pushing the curse's torso away so he could take a good look at him. He's about to ask if Sukuna is alright, if he wants to back out, when he follows the curse's gaze and sees...
Oh, god.
Oh, fuck.
Sukuna is looking at his distended stomach with wide, teary eyes. His cock is leaking, white streaks cutting through red.
"Megumi, " Sukuna chokes out.
Megumi's control snaps.
The same grin returns, and Sukuna barely has enough time to process it before he's lifting the curse like he weighs nothing - only the tip of his cock remaining - before pushing him back down on his cock in one smooth, fluid thrust. Sukuna grapples for his shirt, biting out curse words that melted together - Megumi's sure that some he's millenias too young to understand - as he bit his lip hard enough to bleed in order to keep his noises in.
"Be good." Megumi snaps, his thumb digging into the tip of the curse's cock. Sukuna's unprepared for it - a sob escapes his mouth, dazed, and Megumi uses that as a leverage, putting the curse's arms around his neck. "Don't muffle your noises. I want to hear you."
"You - shit! - fucking asshole, " Sukuna's hand grips his hair, urging him to move his own. " Move. " Megumi groans, and follows his word, all whilst licking and biting into Sukuna's flesh. The curse meets his thrusts, bouncing up and down his cock as he braced himself on Megumi's shoulder.
"You're squeezing me so tight, fuck." Megumi grunts, adjusting his grip on Sukuna as he pulls him closer. It causes the head of his cock to brush against Sukuna's prostate, and the King of Curses honest to god shudders, a weak, incoherent mumble leaving his mouth.
"What was that, Sukkun?" Megumi teased, rolling his hips into Sukuna harder. The delicious press against that spot is maddening, and Megumi ogles the drool that escapes Sukuna's mouth, intermingling with his tears. "Go on, speak up, little curse."
"How dare you, fucking - ah, shit - brat." Sukuna growls. "Who the fuck are you calling -"
Megumi grips Sukuna's jaw, hard, and forces Sukuna to look at him. He smiles, dragging out his cock inconceivably slow, liking the way Sukuna's breath hitches.
"What was that?"
Sukuna grumbles underneath his breath, gasping when Megumi sheaths himself inside of him in one, smooth thrust, almost making him go out of balance. Megumi is there to catch him. " Harder. " The curse bites out, grinding down on Megumi's cock.
"As you wish." Megumi flips them both over with startling ease, and he only takes a moment to put Sukuna's legs over his shoulders before he starts fucking his cock deeper into Sukuna, the curse grappling for purchase on his throne. Megumi is towering over Sukuna like this, and for once, the King of Curses feels small, crushed underneath his lover's frame.
Megumi especially likes the way Sukuna can't hide from him like this.
He watches every miniscule change on Sukuna's face, taking note of what he likes, what he doesn't like. The curse likes praises, despite acting all nonchalant and grumbly about it. He likes when Megumi grinds against him, a slow movement against his sweet spot, parternered with fast, fluid thrusts.
And - Megumi leans into Sukuna's ear, his mouth whispering the words like a sacred prayer - Sukuna especially likes being called little.
"Go on, little curse. Come for me."
Megumi stares, entranced, as Sukuna starts to come undone once again, face contorted in pleasure. His cock stabs into Sukuna's guts, and Megumi presses his hand onto the small, visible bump he sees on the curse's stomach, growling as Sukuna immediately convulses around him as he comes, his insides tightening against Megumi's cock, milking him dry.
"Going to breed you," Megumi growls, pounding into Sukuna faster, harder. The curse bares his neck, throwing his head back as pleasure trickles up his body like electricity, tears falling down his face through gritted teeth. Megumi watches the sight with lidded eyes, a smile stretching across his face as he pants, his thrusts going sloppy as he nears his release. Sukuna's insides pull him in, and the way that it refuses to let go of his cock is driving him insane. "Going to fuck my come so deep into you you'll feel it for days. Fuck!"
Sukuna's insides are painted white, little shocks of pleasure running up Megumi's spine as he keeps thrusting inside of the curse, riding their high. They pant, catching each other's mouths in a messy kiss of teeth and tongue.
After they both recover, Megumi maneuvers Sukuna into a better position, sitting back on the curse's throne so the said curse can sit on his lap and lean on his chest. They spend a few, quiet moments like that, and Megumi is simply content to bury his face in Sukuna's shoulder, basking in post-coital bliss.
Head in the clouds, still in the afterglow, it takes a while before Megumi notices Sukuna's stare.
"What is it?" He murmurs, looking at the curse as well. "Are you feeling okay?"
Sukuna's eyes soften at the question, before he scoffs, burying his own face back into Megumi's chest.
"Tell me, please." Megumi encourages. A pit of worry digs itself into his stomach when the curse doesn't reply, not even with an insult or a quirp. "Did I do something wrong? Did I push you too far?"
"Fucking fool." Sukuna clicks his tongue. He's pretending to be annoyed, but nothing can hide the visible heat in his cheeks from Megumi, who has long since been trained to read the curse and his vocabulary. "I liked it. If it was anyone else, their head would be rolling in my domain before they could finish speaking, but I liked it."
Now, it's Megumi's turn to be surprised. It isn't like Sukuna to be vocal about these kinds of things.
"Oh." Megumi feels a big, goofy smile form on his cheeks. God, Sukuna really has to stop making him like - like this . He's getting too damn comfortable and familiar and it's - well. He tries not to think of the implications too much. "I guess I'm really lucky, then."
"Better believe it, brat." Sukuna laughs, the sound rumbling against Megumi's chest. Megumi only hugs him tighter.
He swears that he feels the King of Curses melt.
"Can I hear you say my name again?" The words are spilling out of his mouth before he could stop them. Megumi flushes bright red, and Sukuna has to fight a laugh at the fact that the man who barely broke a sweat at whispering the flithiest shit in his ear, is the same damn man who's blushing like a virgin maiden at asking the curse to speak his name.
"Fushiguro. There. Happy?" Sukuna's not going to make it easy for him. He deserves a little mischief after the whole thing Megumi pulled. (Even if he liked it.)
Megumi looks at him, unamused.
Sukuna can't help but laugh. "Aren't satisfied with the way I screamed your name hoarse already?"
Megumi turns away, huffing. "Sleep, then."
The curse waits until Megumi's breathing peters out into calm, quiet ocean waves. He presses closer into Megumi's warmth before he says it, as gentle and scorching as the sun.
"G'night, Megumi."
Megumi doesn't have to wonder why it sounds like an 'I love you'. He snuggles closer to Sukuna, whispering a name of his own.
They fall asleep listening to each other's heartbeat, feeling like they're on top of the world.