"Let's play house."
The words are out of Tsumiki's mouth the moment Gojo leaves for his mission and Megumi freezes, a towel in one hand and a still wet plate in the other. Those three words shoot through him and the effect is instantaneous with blood rushing to his cock.
It's almost pathetic how easily those words coax him to full hardness, but when he shares a look with his sister, he realises exactly why he reacts so favourably to them. Tsumiki's pretty. It isn't hard for anyone to admit. And she has a heart warming personality to match her outside demeanour.
Underneath though there's something more, something a little twisted that's born from how they were raised; their parents left without a word or leaving them any money, and some strange man waltzed into their life talking about curses, school, techniques and sorcerers. Over the years Megumi's snapped at her and she's snapped back, but nobody else ever gets to witness that side of her, just him. And sometimes she can be particularly cruel with her words, stabbing at every insecurity Megumi carries around with him in silent harmony.
Which makes her even more beautiful. She reserves that part of herself, that darker part that somehow is still laced in her usual warmth, just for him. But only he's honoured in witnessing such acts or behaviour and it only makes his heart grow fonder for her.
"Okay," he says, and he sets the plate and towel down before he accepts her outstretched hand. She takes the lead to his bedroom, it's always his bedroom, but he never complains. He gets her all to himself.
Megumi doesn't bother closing the door behind them. There's no point when it's just the two of them. He simply lets Tsumiki guide him to the bed and push gently on his chest until he sits down on the edge. It's the same act every time and Megumi will never tire of it, his eyes glued to his sister's frame as she reaches for the hem of her shirt.
He watches attentively, hands settled atop his knees and his fingers itching at the fabric of his pants. He wants to reach out, pull her into his lap and press his palms to every inch of bare skin he can reach. He wants to kiss every inch that she willingly exposes to him, muttering his praises across her shoulders, down her neck, and along her jaw.
It's what she deserves.
Instead he waits. He lets her set the pace, lets her grow comfortable in her own body as she shimmies her skirt down her thighs. It pools around her ankles and she kicks it away with a soft smile thrown his way. "Your turn," she whispers.
"Yeah," he mumbles, and he tugs his shirt over his head, tossing it to the side somewhere. It doesn't matter, he'll find it later. He unbuttons his pants and hooks his thumbs into the waistband, "Both?"
Tsumiki purses her lips with a wide smile and nods, "Both."
He wastes little time in shuffling both his pants and boxers down his hips, kicking both garments away and letting his hard cock show itself to the world and her. Her eyes are drawn to it immediately and a familiar flush heats up his cheeks. He'll never get used to the way she sizes him up, hungry brown eyes melting with heat at the sight of him. It always makes him twitch and leak, and her look drags a shaky breath from his chest.
Tsumiki flicks her eyes up, meets his hooding gaze, and the corners of her lips twitch up with something knowing. She has a certain power over him that nobody else does and she knows it. Megumi knows that she knows it, and he knows that she knows he knows. She hooks her thumbs in the straps of her bra and snaps it against her own skin, sending a shiver skittering down Megumi's spine.
"Tsumiki," he whispers, breaking the quiet that's settling into the corners of the room.
She moves then, swaying her hips and padding gently across the space between them. She slides her hands onto his shoulders, over the span of his back, and finally slots her knees on either side of his thighs. She wraps her arms around his neck and pulls her chest flush to his, covered breasts pressing against his bare skin, a slither of fabric the only thing separating them. He has to purse his lips to hold back his groan as she rocks against his erection, nudging a drop of desperate pre from the tip.
Tsumiki cards her fingers through the hair at the base of his skull and hums, tilting her head with a wider grin. "Megumi," she breathes, almost reverently, and it pulls a gasp from him. It's all he needs to lift his hands and settle them on her hips, his fingers dancing across the line of her underwear. He skirts his hands to the small of her back, spreads his fingers across the tiny span, and holds her as tight as he can against himself.
A small hum reverberates through her entire being and she arches into him. Her fingers work up through his hair, and she tugs, canting his head back an inch. She rolls her body against his, grinds against his hard cock, and finally, finally , presses her mouth to his skin. She starts at his jaw and slowly works her way along it with soft little pants.
Megumi closes his eyes and squeezes her against him. His mouth falls open and he can't help his own little grunt as her hot mouth moves down and sucks a gentle pink blossom into his neck. Hers . He was hers. And any moment now she'd leave behind a more possessive mark, a larger brand, something that would take days, maybe even weeks to disappear.
He's almost vibrating in anticipation.
Her thumbs brush up the sides of his neck, and her mouth follows them, her lips barely there in the butterfly kisses she leaves across his skin. But he can feel her, the heat of her mouth and the weight of her gaze, staring down at his neck, unmarked and clean. It's been too long since she last told the world that Megumi belonged to her and he agrees, he wants them all to see again.
"Not yet." He whines at those two words and Tsumiki's chuckle is light in his ear. "Relax, Megumi. We've got plenty of time for that."
He turns his head until their noses brush and he meets her heavy gaze with his own, "I want you, Tsumiki."
She leans forward and breathes across his lips, "I want you too."
"Can I kiss you?"
Tsumiki hums and slots her mouth against Megumi's. He lets her set the pace again, lets her curl her tongue between Megumi's parted lips, and lets her grind her dampening underwear covered core against his cock. He wants to just roll over, pin her underneath him, and fuck her until all she can say is his name, and more, please. He wants to devour her and never let her go, even if she is already his, but he waits.
This is about her just as much as it's about him and Megumi doesn't want to ruin the perfect little fantasy they've created.
She gasps against his mouth on a particularly harsh roll of her hips and Megumi groans with her. He presses his fingers into her muscles and shivers as she tugs gently at his hair. "Kiss me," she whispers.
Those two words stir him into motion and he captures her mouth with his once more. He's desperate, pressing every ounce of pent up energy he could muster into that one kiss, sucking her bottom lip between his teeth, nipping at her tongue, tracing the roof of her mouth, the lines of her teeth, and everywhere he can reach, until she's moaning into his mouth. He swallows down every noise, savours the taste of her gasps, and runs his fingers over the soft curves of her ass to drag her against his cock.
"Please," he pants between kisses, sliding his thumbs under the lace trim of her underwear, "let me."
Tsumiki makes a pleased noise and pulls away to straighten up. Megumi watches attentively, not wanting to miss a single moment. She offers him a shy smile and tips her chin to her chest, "Can you?"
Megumi nods and swallows, "Yeah." He waits until she settles her hands back onto his shoulders before he traces his fingers up the centre of her spine, up and up, until he finds the hooks of her bra. He nudges her forward and captures her mouth once more whilst he unclasps the material and drags his hands up the backs of her shoulders, running his fingers under the straps. He's gentle as he drags the straps down her arms, letting her draw one arm away from him one at a time, the straps falling gracefully from each arm.
He tosses it to one side and settles his hands on her ribs, his thumbs brushing against the gentle swell of her breasts, a hair's breadth away from her pebbling nipples.
"Megumi," she whines.
"Tell me."
She catches his gaze and there's something there, a flicker of untamed heat that only he's ever witnessed. It's something primal and dark, hungry and left to fester behind the facade Tsumiki gives the world. But for him, she takes off her mask and bares all. He gets to see the real her and he can feel her patience sliding away with a fidget of her hips. "Fuck me," she grinds against his cock and gasps, "like this."
He groans and his hands shoot to her hips to halt her movements. On another day he'll play with her tits, pull her nipples between his teeth and roll them until they harden. He'll spend another afternoon kissing at the supple flesh of them, sucking brands into her skin until all she is is a myriad collection of bite marks that matched his teeth, his hands forever kneading them until she shivered from the ghost of a breath across them.
Tonight, she wants him.
Tonight, just like every other night, he'll give her what she wants.
He presses one hand to the small of her back and guides his other down. He hooks a finger in her underwear and nudges it to the side, groaning at the slick that meets his cock. "You're so wet," he whispers, taken aback every time that she feels this way about him, and he wonders for the briefest of moments if she's ever gotten this wet for anybody else.
She presses her face to the crook of his neck, arches her back and sits up onto her knees. Megumi uses his other hand to guide his cock and he places a gentle kiss to her shoulder as he lines himself up. Normally he'd stretch her with two fingers to make the glide easier, but tonight she wants him like this. She wants to feel him in his entirety and Megumi could never deny his sister.
"I only get like this for you," she whispers and Megumi's eyes flutter at the confession, a groan ripping its way from his throat.
He can feel her smug smile in those words and his cock twitches in his hand. "Fuck," he gasps, and he screws his eyes shut for a moment, "Tsumiki."
"Megumi."
He loves the way his name sounds on her lips, the way she whispers it carefully as though it was a secret that he was stealing away from her in the dead of night. He loves the soft sing song of her voice as she whispers his name reverently into the quiet of their place, a sacred prayer for him and his ears only. "I love you," he whispers with the same devotion.
She moans and leans back, and Megumi gasps as slick heat kisses the head of his cock. His gasp melts into a groan as Tsumiki levels him with a smirk, threads her fingers into his hair, and slides down. It's tight, and hot, and wet, and Megumi digs his fingers into her hips to steady himself. He curls his toes into the carpet of his room and has to will himself to not blow his load already.
Tsumiki is slow as she works her way down, torturously slow as she rolls her hips in small, back and forth motions, each rock knocking her down another inch. And each new inch has her pulling at his hair, has her mouth falling open with a litany of moans and curses, and has her trembling in his lap, her thighs tensing around his own.
He wants to drag her down the final few inches, wants to hear her cry from the sudden stretch, and wants to feel her muscles spasm around him. Instead he waits. He lets her set the pace for now. The last thing he wants to do is hurt her and she'll tell him when she's ready.
Megumi watches in fascination as she sinks lower, as she hunches over in his lap, and tries to control her own noises just a little. It never works, especially not when she finally sits snugly in his lap, his entire cock seated fully within her. Her muscles clench around him and Megumi groans, his hips bucking ever so slightly without his permission. It knocks a gasp from Tsumiki's lips and has her tightening her grip on his hair.
She cants his head back with one harsh tug and Megumi whines, his eyes widening, as he's forced to look up at her. Tsumiki leans down, hovers her lips against his, lifts herself up an inch and slides back down, her bottom lip trembling, and she whispers, "Fuck me, Megumi. Please ."
He snaps his hips up and she bounces in his lap with a soft mewl.
"Again," she mutters, "don't stop."
He closes the gap between their mouths, captures her attention with that one kiss, his eyes hooded over and fixed on the soft glow of her cheeks. He bucks up into her, and as she falls back down he fucks her again, and again, and again. He swallows her shallow breaths, wraps one arm around her waist, and tangles his other in her hair, holding her as close as he can. "Tsumiki," he groans, the noise mixing with the slap of their skin as he fucks her in earnest.
She cries and clings to him, her fingers scratching everywhere she can reach. There'll be red marks buried deep within his shoulders when they're done, but it's worth it to see, to hear, and feel his sister come undone because of him. "Me- Megumi," she whines, her head pressed to his and her eyes screwed shut.
"M'here," he mutters, "'m right here." He struggles to catch his own breath and it's a second thought that barely exists. All he can think about is her.
Tsumiki.
Tsumiki.
Tsumiki .
"I love you," he blurts.
Her muscles clamp down on his cock and she keens beautifully in his ear, her entire frame quivering under his fingers, and she nods, pressing her face to the crook of his shoulder. "I love you," she squeezes out, "I love you, Megumi. I love you."
He grinds up into her, each rock of his hips dragging hiss after hiss from his chest, making him moan louder and cling harder to her. "I'm- I'm-"
She catches his ear between her teeth, rolls her hips forward with another whimper, and nods as she slides her mouth down the column of his neck. "You ready?"
He feels her teeth tracing the path where his pulse races under his skin and he fucks her harder, snaps up harshly into her with desperate nods and a mantra of, "Yes, yes, yes," on his tongue.
Tsumiki moans, catches fistfuls of his hair between her fingers, and sinks her teeth into his neck. Megumi groans and he can't stop the wave that crashes over him. For a few seconds his mind blanks out to a cacophony of white noise and he fills Tsumiki with his release, her whines melting in his ear.
He holds her tight against his chest and eventually he remembers how to breathe. His neck throbs gently from the brand she's buried into his skin and he knows he'll wear it proudly for the next week at least. He was taken, and she was his keeper. He hums, runs one hand down her back and slowly pulls back to catch the flushed colour of her cheeks. "Are you okay?"
She drags glassy eyes up and grins, her fingers curling under his chin to tease him back into her space so that she can steal a kiss. "I'm perfect."