Work Text:
"why are you so shy," sukuna gruffly asks, looking down at you. "you act like i have no experience with this.
you can't stand still, shifting your weight from one foot to the other. it's hard not to be shy. no one has ever shown genuine interest in your...'features' in a non-disgusted manner.
yet, you couldn't be surprised that sukuna wouldn't be disgusted, not when he so proudly shows off the massive maw on his abdomen, which is currently...smirking?
"well, it's just...weird."
a loud scoff is your only response, his arms grabbing your wrists and gently prying them away from your own stomach.
cute.
cute is the best way for him to describe you right now, your stomach mouth having a matching pout to the one on your face.
"mm, i think it's adorable. she's much smaller compared to mine," he teases lowly, referring to the adorably small size of your maw compared to his massive one. "a cute little thing. so shy, just like her host."
all you can do is whine, his words making your insides twist and squeeze in embarrassment. despite this, you found yourself unconsciously stepping forward, not realizing how the two mouths clearly were interested in the other's existence.
"see? they both know what they are and can sense each other...even you know it subconsciously, little one."
as you hold up your shirt, your face on fire, your own stomach mouth makes a grumbling noise of curiosity before pouting...as if it can sense the stupid grin that mokuna was giving.
great, both of his toothy maws are insufferable.
his eyes flicker down to your stomachs that seem to be communicating on their own, little grunts and movements coming from both of them, as if drawn to each other.
"look closely, little one," he murmurs, pure amusement in his voice. "they want to get acquainted. who are we to stop them, hm?" his hand finds your hip, guiding you closer despite your embarrassment.
of course that wouldn't stop him, he's sukuna, for fucksake, and you should've known he would be into this.
the moment you get close enough is when mokuna acts, licking a thick, wet strip across your tummy with the most devious grin. "s-sukuna," you gasp, squealing at the strange sensation as a whine slips out of you.
honestly...it feels kind of gross, like thick, hot slime coating your abdomen. you can't help but shiver, shocked at the boldness. and just when you are about to bring up how weird and strange this is...your own mouth seems to have its own plans, growling before licking right back.
the second you look up to see sukuna's reaction, you know you are in trouble.
sukuna's eyes are glued between your bodies, watching as he little 'mouth argument' of annoyed growls and teasing licks slowly start to become something more. it doesn't take long before both your tummy and his lick at the same time, causing mokuna to instantly grow bolder.
its tongue is fully extended now, running across the opposing tongue with a wet, sticky noise that only makes you squirm, mortified by the entire situation.
"sukuna, this i-is so fucking weird!"
he merely hums, giving a low approving grunt that vibrates through the air.
"when has anything with me been normal, princess," he murmurs. "let them get to know each other properly."
both of his hands are on your hips now, slowly rubbing up and down your sides, his way of gently encouraging you to calm down and enjoy it.
it's adorable, how flustered you are by something you keep calling weird and strange.
the heat from his hands only makes you feel everything more, seeping into your bare skin as you continue to hold your shirt up.
you're trying to piece your thoughts together, but before you can—
"ah!"
"mmhp..."
"s-sukuna—!"
"that's new."
your own stomach mouth slides its tongue against mokuna's, not hesitating to slip inside the large maw...and surprisingly, it feels good.
really fucking good.
the sight isn't helping, watching the abnormally large tongues intertwine and exploring each other is oddly erotic to you, and you know sukuna can feel it too.
his brow is furrowed now, a faint blush painted on his cheeks as she seems to struggle to keep it together.
"you have the nerve to call this moment strange, yet your own body cannot control herself. fuck, look at her, she's just as desperate as you are," he groans, squeezing his eyes shut as the strange exchange only got messier, wetter.
"you like it, don't you? you like how strange it is, knowing that only you and i can be intimate like this?"
that realization alone draws a moan from you.
he's right.
neither you nor he knew of anyone with the same unusual anatomy except each other...meaning this truly was something only the two of you could do together.
his hands grip you tighter when he notices you melting in his hold, that thought taking hold of your brain and mixing with the intoxicating feeling of the two monstrous mouths practically making out with each other now, spit and drool dripping down both of your lower stomachs.
"w-why does it feel so good? i-i can feel it all over, like my entire body is on fire, sukuna, I-I can't take it," you manage to whimper, trembling hands gripping his biceps for support.
like you, sukuna is struggling. he's struggling to hold it together because fuck, it really is getting nasty and sloppy now, the monstrous nature starting to take over as they grow hungrier and hungrier for the others' taste.
"fuck if i know," he grunts, voice clearly strained. "just...it feels good, doesn't it? mmh, they're devouring each other, tasting each other..."
he pulls you closer, right up against him, and then, they connect, lips pressing against each other, and both of you are done for.
the obscene slurping and sucking noises only grow worse, louder and messier, little growls and purrs filling the air. both of you let out low, debauched groans, the pleasure so foreign but so fucking good.
"you drive me mad, woman," he grits out, finally letting go and letting his hips rut against you needily. his hands roam all over, groping and gripping the soft flesh of your hips and ass. "god, it's too much...c'mere."
sukuna grips your face with one of his hands, capturing your lips in a deep, bruising kiss, pouring all his hunger and need into it. once his tongue delves into your mouth, neither of you can stop from moaning.
as you melt into the kiss, his eyes roll back, feeling your soft curves pressing into his hard, muscular body.
he hisses a curse against your lips, his hand fisting in your hair to pull you into a deeper kiss, his stupidly fat tongue unknowingly mimicking the movements of mokuna, who seems to grow more enthusiastic and aggressive now that its host is finally participating, pleased growls filling the air again.
"s-sukuna, it's too much, i-i'm—i'm gonna cum like this," you pathetically sob against his mouth, tears filling your eyes as the pleasure gets too much.
that little confession makes him groan, his head dropping down to press against yours. "mm, you and that little mouth of yours are going to get you in trouble, making a king weak like this...making me act pathetic."
you know what that means.
you know exactly what it means.
he's going to cum too, he's about to cum in his pants from both your stomach mouths, sloppily making out on their own, pressed together lewdly, desperately.
"c'mon, stop holding back," he rasps, eyes boring down into your own as he presses you into him harder, grinding his clothed cock against you.
"let it happen, cum around nothing like the needy little thing you are," he groans before pulling you into another searing kiss, swallowing each of your sweet moans as you finally, finally fall over that edge.
it's warm, you feel like you are on fire, it's too much and not enough at the same time. feeling your body go rigid before melting in his arms is too much, and he pulls away from the kiss, the string of saliva connecting your lips snapping immediately.
"you...you have the nerve to say this was 'weird,' yet here you are, cumming untouched, just from this," he huffs lowly, eyes narrowed as if he wasn't the one who was interested in your similar anatomy.
after a moment of studying your fucked out face, he pulls away just enough that mokuna has to pull its tongue away from you, licking its lips with an evil grin as your own maw purrs, no longer reacting aggressively at its presence.
"we aren't done here, princess...no, not at all. come, let's see what other bonding methods we can discover. after all, they seem to like each other. let mokuna taste you again when we both cum together this time."