Thread by @thaanatose

#kv nsfw smut

the twins are insatiable—pulling each other into the linen closet when rem is busy to strip each other down with hushed whispers of, “you’re so 𝘧𝘶𝘤𝘬𝘪𝘯𝘨 hot,” and, “i want you 𝘪𝘯𝘴𝘪𝘥𝘦 me.”

lips meet in a frenzy until vash is shoving nai to the floor.

fingers wrap around a throbbing cock with excitement, gazing down at it with desperation between wet kisses that vash whimpers into, “so big… so full and 𝘩𝘦𝘢𝘷𝘺,” a needy moan as it twitches in his grasp, “just want to sit on it and milk it empty for you…”

a loud curse.

“know you need me wrapped tight around you,” vash pants as he looks down, pink lips pursing lewdly to drop a 𝘵𝘩𝘪𝘤𝘬, 𝘨𝘭𝘰𝘣 of spit onto his brother’s cock.

nai’s whole body is flushed red, hissing as a pretty hand pumps him vigorously. “you’re 𝘧𝘪𝘭𝘵𝘩𝘺, vash…”

but his twin only blinks at him with euphoric bliss, practically drooling at the prospect of 𝘧𝘶𝘤𝘬𝘪𝘯𝘨 when rem is somewhere downstairs. “can’t help myself around you, nai… besides,” a tongue licks over those pillowy soft lips of his.

“saw you looking at me during dinner.”

vash straddles nai with feet planted on either side of thick legs, letting his brother’s red cock slide between his ass before 𝘱𝘰𝘱𝘱𝘪𝘯𝘨 it’s head inside his pussy.

he rolls his hips and 𝘴𝘪𝘯𝘬𝘴 down until he’s completely stretched, whimpering as he starts to bounce.

nai is groaning underneath him, eyes scrunched tight and teeth biting at his own lip until it’s 𝘣𝘭𝘦𝘦𝘥𝘪𝘯𝘨, entirely at his brother’s mercy as vash uses him to chase after his own pleasure.

“𝘢𝘢𝘩—! ah, ahh…” vash moans like a broken record, hips eagerly slamming down.

that leaking, bulbous tip catches onto his rim each time he slides back up, and it never fails to make him 𝘤𝘭𝘦𝘯𝘤𝘩 down with a broken whine.

“𝘯𝘢𝘪…!” he cries, thighs burning from the constant motion of riding his brother with uncontrollable desire. “nai, oh 𝘨𝘰𝘥!”

his brother’s head has since been thrown back, hands gripping at the floor beneath him before latching onto thin ankles in an attempt to stop himself from a premature and embarrassing finish.

vash doesn’t make it easy for him—not when he stops at the very 𝘣𝘢𝘴𝘦 of his cock.

an excruciating 𝘴𝘲𝘶𝘦𝘦𝘻𝘦 leaves nai gasping for breath, stomach tensing as vash expertly rolls his hips in circles, rising just slightly to let his cunt slip juice down a throbbing, 𝘱𝘶𝘭𝘴𝘪𝘯𝘨 girth.

“so… so 𝘨𝘰𝘰𝘥—!” vash chokes out, delirious and far too gone.

nai isn’t wearing a condom even though he 𝘴𝘩𝘰𝘶𝘭𝘥 be, but they stopped caring months ago. he can’t remember when they started fucking like this—with vash eagerly riding him and sucking him for all he’s worth.

“𝘧𝘶-𝘶𝘤𝘬,” vash sobs through a little smile and glassy eyes.

knees shake as they continue to hold vash up, trembling with every bounce that leaves their thighs slapping loudly together.

“𝘨-𝘰𝘥—!” vash curses again, fingers scratching at muscular shoulders and drawing more blood. “you’re so… so f-ucking 𝘥𝘦𝘦𝘱!”

he’s terribly loud.

nai plants his feet down just as vash stutters to a stop, lashes fluttering closed in a weak attempt to drag this out longer… to keep his big brother’s 𝘧𝘢𝘵 cock inside him until it’s 𝘱𝘢𝘪𝘯𝘧𝘶𝘭𝘭𝘺 raw.

until vash is 𝘴𝘰𝘣𝘣𝘪𝘯𝘨 from how much his pussy hurts.

vash always does this—pins nai down and makes him suffer through 𝘢𝘨𝘰𝘯𝘪𝘻𝘪𝘯𝘨 paces that slow down right before either of them can tip over the edge.

it’s sadistic.

with a strained grin, he grabs at his twin’s lithe waist, 𝘧𝘰𝘳𝘤𝘪𝘯𝘨 vash down onto an upward thrust.

“𝘢𝘢𝘩𝘩—!” his brother wails at the very moment nai feels himself rip through sensitive flesh, breaching past a cervix that hugs him with a welcome invitation. “o-oh my 𝘨𝘰𝘥!”

nai doesn’t stop grinding even when vash’s thighs slam together and a clear liquid splashes on him.

delicate fingers dig into his neck, pink lips falling open in a silent scream, and the way his brother trembles in his hold only riles him up, cock twitching inside that wet heat.

“good boy,” he murmurs, sliding a palm along an arched spine. “can’t let you have all the fun, hm?”

vash is an adorable sight now; cheeks flushed red and eyebrows scrunched together as tears drip steadily down his chin.

it doesn’t take much to turn vash into a little baby, and nai enjoys stripping his dear twin of whatever control he thought he had.

“h-hurts…” vash murmurs.

nai only rocks gently upward, smirking as the tip of his head catches onto the opening of a womb begging to be filled.

he holds vash close through a soft kiss before sliding his hand down a sweaty body, roughly gripping the swell of a fat cheek.

“we’re not done yet, okay?”

he’s satisfied when vash nods in response, fluttering around his length even after having such an intense and abrupt orgasm ripped out of him when he hadn’t wanted it.

“think you can use me for yourself, huh?” nai can’t help but grin, shallowly rocking into his brother.

“m sorry…” vash sniffles, squealing when he’s suddenly forced onto his back in a press that 𝘱𝘭𝘶𝘯𝘨𝘦𝘴 nai so much deeper inside him, ripping a pleasured scream from him. “𝘢𝘢𝘩—𝘯𝘢𝘪𝘪𝘪!”

a large palm slaps itself over vash’s mouth, muffling his sobs and shrieks.

nai pulls back until the tip of his head is poking at an eager entrance, teasing his brother and making vash squirm in embarrassment at the way his hole attempts to pull nai inside.

“shh, relax for me baby, okay?”

vash hiccups pathetically.

“god, you’re so 𝘯𝘦𝘦𝘥𝘺.”

hands grasp at his wrist, scrambling when nai drives into that searing heat with a loud 𝘴𝘮𝘢𝘤𝘬 of his hips against vash’s ass.

“𝘮𝘮𝘮𝘩—!”

“yeah, that’s it, baby,” nai chuckles. “fuck, just stop crying for a second. you hear that? hear your pussy squelch for my cock?”

vash whimpers at the words, legs spreading in response to the thick girth massaging his ridges with every thrust, but he looks away in shame as he does so.

but the palm pressed to his mouth releases at that moment, squeezing at his cheeks instead and forcing his gaze back.

“no, no, baby, don’t turn away from me,” his brother growls with a snap of his hips, “want you staring at me, want to see your cheeks get red every time you tighten on my cock.”

“𝘯-𝘢𝘪—!”

“listen to your pussy make those filthy noises every time my cock sinks into you.”

oh, oh no.

“you’re so 𝘸𝘦𝘵, baby, dripping all over me and on the floor, making such a slippery mess,” nai sounds breathless. “𝘧𝘶𝘤𝘬, baby, you’re such a pretty mess for me, so shy to hear how desperate your pussy is. god, you’re so greedy for it.”

vash can’t do this.

each time he pushes nai down and sits on him, it’s so that vash has 𝘴𝘰𝘮𝘦 kind of power over his stupid, smug bastard of a brother, but it always ends like this.

it always ends with nai turning him into a drooling 𝘪𝘥𝘪𝘰𝘵 who can only cry while his brother fucks into him.

“ahh! haa—nai…!” he gasps after every thrust, biting back the screams that tear through his throat—𝘳𝘦𝘮 𝘤𝘢𝘯’𝘵 𝘬𝘯𝘰𝘸—but it’s so hard when his brother stretches him so 𝘨𝘰𝘰𝘥.

his eyes roll back at a rough shove against his womb, and he smiles drunkenly. “mmh…”

“you’re doing so good for me…” nai exhales against an open mouth. “what do you want, baby? stare right up at me and tell me exactly what you want.”

blue eyes glisten under the dim light of the closet with fat tears.

“i know it’s hard, baby, but i know you can do it. come on.”

vash yelps when hands grip his thighs, pressing him over until nai is 𝘥𝘳𝘪𝘷𝘪𝘯𝘨 into him and murmuring against the shell of his ear, “what do you want? for me to come inside you? for me to make a sticky mess in your hole? don’t nod, use your words.”

it’s 𝘴𝘩𝘢𝘮𝘦𝘧𝘶𝘭.

it’s shameful the way vash clenches down at the thought, but he whimpers out a breathless, “need… 𝘢𝘢𝘩—inside…!”

teeth drag along the underside of his jaw as nai pauses for a moment, and there’s a thumb that prods at the swell of his lips. “god, you’re so cute, baby.”

just when vash thinks his brother has finally shown mercy, he’s sunk back into like it’s all he’s good for.

“just lay back and let me fuck into you. let me slip my thumb into your—ah, yeah, good boy. suck on it just like that,” he quickens his pace, “won’t be able to hold back.”

vash wishes he didn’t like the praise, or the way his brother talks to him like he’s a dirty whore, but he 𝘭𝘰𝘷𝘦𝘴 it.

“look at how beautiful you are, 𝘢𝘩—squeezing so tight on me, i’m gonna fill you up, yeah? i know what you need… come on, wrap your legs around me.”

he listens like the good boy he is, moaning on wet chokes as nai 𝘱𝘪𝘯𝘴 him down and pistons that fucking cock of his inside his aching pussy, “nai—! 𝘯𝘢𝘪, please!”

his sobs are muffled with the thumb still pressed against his tongue.

“𝘪𝘯𝘴𝘪𝘥𝘦—!” his ankles lock.

vash wants to beg more, but nai 𝘧𝘪𝘯𝘢𝘭𝘭𝘺 kisses him, shoving him up the floor and knocking his head into the wall with a final thrust that shoots warm liquid all over his insides, painting his womb white in seed that belongs to his brother.

“𝘮𝘮𝘩!”

oh, 𝘧𝘶𝘤𝘬 𝘺𝘦𝘴.

there’s a moment of tired silence as nai pulls back, brushing their open mouths together intimately and continuing to rock into him with short, little rolls.

their skin sticks together with sweat, but vash doesn’t mind, wrapping his arms around a back so much larger than his.

he hugs his brother close, glowing in the aftermath and smiling happily as nai stays between his legs, plugging him up.

“don’t worry, sweetheart,” nai presses a hand to the back of blonde hair. “we’ll keep it inside, yeah? keep you nice and warm with my seed. rem won’t know.”

she doesn’t.

she never knows—not even when vash helps her wash the dishes with a purple plug sitting comfortably in his cunt, cheeks still pink and lips curled into a coy smile.

not even when nai stands a little 𝘵𝘰𝘰 close to vash, hand resting on the small of his back.

rem doesn’t blink twice at how close her twins boys are, hardly giving them a second glance when they cuddle together on the living room couch.

“hey, mom!” vash exclaims from where he’s snuggled to a broad chest, legs covered with a fuzzy blanket. “wanna watch a movie with us?”

she smiles at them with a gentle, “not tonight, boys! i’ve got a lot of work to catch up on for tomorrow, so i’ll be in my office. have fun!”

with that, she walks off with a granola bar for a snack, oblivious to her youngest son falling to his knees and servicing his brother.