Somethin' New (miya TwinsxF!reader)

somethin' new (miya twinsxF!reader) <NSFW>

a/n i'm working on like 3 other fics rn but i found this in my drafts and thought it was good enough to publish (with a LOT of polishing ofc). I'm new to smut writing so I'm very insecure abt this but i hope u enjoy

summary::: your older brother atsumu likes watching porn. and the twins like trying shit out on you. aka porn w plot osamu focus bc he's best boy word count::: 2.9k warnings/triggers!!!::: non-con, step-cest, stockholm syndrome-ish, the miya twins are really fucking mean and possessive, double penetration (my fave! <33)

People think the Miyas are scariest when they lose, when they're arguing with each other, or when they're distracted during a serve. 

But you know them better–actually, you know them best.

They're scariest when they're fucking you.

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"I was watchin' porn yesterday and I wanna try somethin' new," Atsumu announces as he walks through into the living room, tossing his volleyball bag onto the couch. 

Osamu rolls his eyes, continuing to flip through his textbook at the kitchen table. 

"Why the hell would you watch porn when you got ‘er right here?" Osamu snaps back, hardly glancing up. Atsumu’s eyes shift to you as you squirm on Osamu’s lap uncomfortably. 

Osamu continues casually stroking your pussy with one hand as the other holds you down. 

You’re shaking– he’s been at this for twenty minutes now, reading his lecture notes as he continuously edges you. You haven’t given in yet, though. 

You know he’s just waiting for you to beg him for it.  

It's still hard to believe that you’re dripping on his lap and he won’t stop memorizing vocabulary for his upcoming exam.

As a final year university student, Osamu’s been under a lot of pressure. What better way to alleviate it than to play with his favorite toy?

Atsumu takes in the scene in front of him, smirking when he makes eye contact with you. You quickly turn away.

Although the twins share you, it still feels wrong when one of them catches you in the act with the other.

“Ya sure you don’t even wanna hear? I know you’ll like it, ya freak,” Atsumu says, now glancing at his brother.

You shiver at Atsumu’s words and Osamu frowns as he moves his hand away from your lap.

"Fine. Out with it, asshole," he murmurs, finally distracted from his studies. He shoves his papers aside, full attention on you now. From the corner of your eye, you see Atsumu light up. 

It’s almost comical to see the twins this way.

Always fighting, always competing— but when it comes to you they're a single organism.

"I was watchin' my favorite porn star-- ah, don't be jealous, y/n! I only watch her for inspiration because she's freaky-- and I saw her take two in one hole." 

Your eyes widen.

You wouldn't be able to take it.

"No, please," you whisper, holding your breath. Osamu’s body flexes under you reflexively.

When have you become such a pussy?

You were always the outspoken, little step-sister who fought her brothers tooth and nail for the last slice of cake. 

Nobody could have excepted them to fuck the brat out of you within a month of moving in together.

Osamu surprisingly agrees with you.

"Nah. I'm not into rubbin' dicks with you," he says, both hands on your chest now. The thought of being that close to a naked Atsumu makes him grimace.

Atsumu rolls his eyes.

"I'm not into that shit either, but I wanna see her take it." You wince as Osamu pinches your nipples, hard. He's gone completely silent, which isn't a good sign. 

“It’ll be a little painful, but I know she’ll be able to pull through,” Atsumu continues, carefully watching Osamu’s expression.

The Miya fans would be shocked to discover that Osamu's a sadist, more so than Atsumu. 

While Atsumu wipes away your tears, Osamu enjoys watching them stream down your face.

When Osamu doesn't respond, Atsumu sighs and rubs his head, frustrated. He’d been looking forward to this since last evening, when he had to jerk off to the sounds of you and Osamu going at it.

"Fine then. I'll try it myself with a toy. I bought a new dildo for her, ya know. And it's bigger than you."

No further words are needed—Osamu pulls his hands out of your shirt, and you feel him physically fuming behind you.

He's possessive, stupidly so, and hates when Atsumu buys you disgusting silicon toys and shit. 

He really doesn't understand his twin sometimes. 

Why buy toys, why watch porn, when you, his adorable, precious little bitch, exists? 

Osamu would rather lose a game at nationals before you cum off a piece of vibrating plastic. 

And he won't admit it, but deep down he's scared. Scared that it'll satisfy you better than he can. 

The less competition, the better. He's already competing with Atsumu on a daily basis.

Atsumu, who can make you squirt faster than he can. Atsumu, who makes you laugh. Atsumu, who, Osamu knows, you favor.

Maybe it's because the little shit handles you just a little better in bed. 

Osamu picks you up from classes, purchases expensive jewelry and takes you out to get sweets every week, you still shy away from his touches.

So Osamu has given up-- if you're gonna hate him anyways, he'll do whatever he wants. 

And that’s why you’re always left a humiliatingly wet mess whenever he uses you. 

"Fine. Ya better take a shower first, you fuckin' freak," Osamu says, pushing you off his lap. 

Atsumu smirks, cracking his fingers and wrists.

"You be preppin' her, 'Samu."

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It feels good, but you don't want to admit it.

You’re lying on your shared king-sized bed, trying to hold back tears and moans as Osamu eats you out, pumping three of his long fingers into you quickly. 

Between the two of them, Atsumu can get you to cum faster. But Osamu gets you to cum harder. His every move is calculated–from every lick to every moment of rest he gives you.

Osamu's on a mission to get you to beg.

"Samu, please," you breathe, gripping the bed sheets. You feel him smiling, and you grip at the bedsheets. All the teasing he’d been doing before Atsumu got home is quickly catching up to you. 

“What was that?” He asks, his dark eyes taking in the conflicting emotions washing over your face. When you don’t respond, he leans back and slaps your pussy, hard. Your eyes widen in pain, and you can’t help the squeak that you release, to his satisfaction.

You’re wet, and he knows it’s not a fluke. You want him. He hasn’t trained you over this past year for nothing.

“‘You aren’t bein’ too mean, are ya?” Atsumu asks, stepping out of the bathroom, rubbing his hair with a towel. He’s shamelessly naked, hard from hearing your cries from the shower. 

Atsumu surveys your body, admiring the marks his twin has placed on you. 

A small part of him is thankful his brother is willing to play the role of mean cop. Atsumu gets to reap the rewards of consoling you—although he too enjoys seeing you covered in bruises and left in tears.

He’d never hurt you himself though. He likes cuddling with you and loves the way you laugh at his lame jokes too much. 

Osamu snaps him back to reality, standing up as he wipes his shiny lips with the back of his hand.

“She’s ready.”

Atsumu grins. His brother is strangely meek today---probably from you refusing to go to his practice game the other day. You had enjoyed a nice picnic date with Atsumu instead (although that ended with you shaking and moaning in Samu’s arms that night).

“I guess I’m first?”

“Ladies first.”

“You’re a bitch, ya know that?” Atsumu spits, rubbing his dick with his left hand and soaking his right in your wetness. Osamu laughs, pulling off his shirt in a smooth motion.

You, on the other hand, can’t stop shaking. The thought of having two of them in a single hole is almost too much to wrap your head around. With Osamu’s length and Atsumu’s girth, you’re sure you won’t be able to take it. 

What if you tear? Surely they’d stop if you beg hard enough.

For now, you can’t do anything but accept this. 

From what you’ve observed, when the twins are playful in bed, you shouldn’t resist.

Lost in your thoughts, you gasp as Atsumu yanks you towards him—he’s sitting at the head of the bed, leaning against the wall. You gulp as you find yourself hovering above his dick, facing Osamu, who’s busy tossing Atsumu's towel onto the ground.

“Aw, baby. Calm down, won’t ya? You know it hurts more when you’re nervous.” 

Atsumu brings your face towards him, grip so tight you couldn’t turn away if you wanted to. 

His rough hands, thick from years of volleyball training, gently smoothes out your hair, and he begins to press kisses on your jawline. The motion is so welcoming that you momentarily forget he’s the one to propose this in the first place.

Osamu sighs, frustrated.  

“Get on with it, won’t ya?”

Atsumu frowns at him, pulling away from you. 

“And that, ‘Samu, is exactly why she likes me better than ya,” he says, slamming you onto him in a single motion.

It hurts!

You groan, fingers twitching. It hurts already, he’s especially hard today. What’re you going to do when it gets to the meaner twin?

Atsumu pets your clit, grinning as he feels you begin to melt into his chest. He knows exactly how you like it. That spongy spot, right… there. Your groan turns into a moan as he shifts his hips, aiming to reach deep inside of you. 

Osamu doesn’t break eye contact with you as he slowly gets onto the bed. He’s in no hurry, unfortunately. 

If he wasn't such an asshole, you'd find him hot.

You really do love his gorgeous eyes and gray hair. 

"Stop bein' a dick and get on with it," Atsumu says. He scowls at his brother, who continues to simply stare at you. 

Both of them know Osamu doesn't want to actually hurt you. He'd never break you.

You're too precious.

"W-what?" Your shaky voice intrudes into his thoughts. 

You've gone red and stopped clawing at Atsumu's unrelenting hand.

Did he say that out loud? He must have, because Atsumu is laughing now.

Fuck. 

This isn't the time to be embarrassed, though.

Osamu reaches forward, lining his dick next to his brother's. 

To be honest, he was never opposed to the idea.

Yeah, Atsumu's a disgusting pig, but he's his twin. 

There's an unbreakable bond between them and knowing they share so much DNA sometimes makes Osamu feel as though they're just one person in two bodies. He’s honestly willing to try anything that Atsumu proposes (except get him off, of course, he’ll leave that to you).

Taking a deep breath, he begins to push, using his precum as lube.

Fuckkkkkk.

Osamu's pretty sure everyone had the same thought at that exact moment.

It's so tight. It's so warm. It’s hurting you, for sure. But it feels too good to stop. 

For you, it’s suffocating, being stuck between two muscular twins. And, once again showcasing their unspoken connection, they begin to carefully move in and out of you at the same pace. 

It hurts now, and tears are burning behind your eyes, but there’s that little voice in your head telling you to just relax and enjoy it—it’ll feel good.

Why? Why does it have to feel so good when this is all wrong?

Fundamentally, twins shouldn't be sharing the same girl, at the same time.

That same girl should especially not be their little sister whom they've been older brothers to for a decade.

But what does it matter now?

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Atsumu's in heaven. This is better than he imagined, actually. He’s decided that he’ll take the easy route, playing with your soft breasts and sucking hickies into your neck. His dick has gone still as he simply enjoys the fast pace Osamu fucks you at. 

While there’s a slight burn against his cock every time Osamu moves, the pain only intensifies the pleasure. 

Osamu’s eyebrows are furrowed as he focuses on watching his dick pump into you. He wants to curse out Atsumu for being so lazy, but at the same time— he’s always liked to be in charge. 

That voice was right, because it’s feeling good now. Your brain buzzes pleasantly and you’re losing control of your legs. 

Atsumu's moaning into your ear, Osamu's grunting with every push, and you feel hyper aware of every motion as you're slipping away. 

The dull lights of the room begin to blur.

You're crying now. Your toes are curling and drool slips out of the corner of your mouth. How stupid you must look right now.

How long has it been? 5 minutes? 5 hours?

It has to be at least that long or else the numbness that you’re beginning to experience down there doesn’t make any sense.

Atsumu has resumed his efforts in making you feel good, overstimulating every fiber of your being as he wipes away your tears and nuzzles your neck. It’d be an innocent gesture if he wasn’t rubbing circles onto your clit.

Osamu has been working like a well-oiled machine, admiring your broken face and how good his lower half feels, circulating adrenaline throughout his body. 

Just looking at you, choked up and crying, is enough. 

"I'm cumming..." he whispers. No, he’s not. He can’t. 

Not before his stupid twin does. And certainly not before you do. 

"Come on, baby, beg for it," Atsumu whispers into your ear, as if he can read his brother’s thoughts. 

Maybe they do have some sort of telepathy. Atsumu reaches forward and gently pushes down on your lower belly. You groan immediately. The slight pressure has your walls rubbing against their dicks even tighter now, and Osamu’s now grinding against that spot you love.

You’re gonna cum. Or pass out. Maybe both. 

"Please!" You shout. Fuck pride. "Please, please, please, ‘Samu, please cum."

Annnd he’s coming. Osamu reaches out, grasps your neck, and squeezes. 

Your cries are the only thing he can hear, loud enough to drown out Asumu’s words, and he’s losing sensation in his hips—

“Fuck, I love you, y/n…” Osamu says, admiring the way your eyes roll to the back of your skull. 

Even as your eyesight flickers, you make out this confession, lips automatically parting to moan. 

You tighten as Osamu releases in you, Atsumu following suit shortly after (something he’ll bully Osamu about later, no doubt).

There’s a certain stillness in the room as Osamu immediately slips out of you and turns away. Post-nut clarity’s setting in, and he realizes he’s not as fond of dick rubbing with Atsumu as he was a few minutes ago. 

Atsumu’s still panting in your ear, and, after a few moments of rest, gently eases himself out of you. Unlike his usual self (who insists on cuddling with you after the deed, no matter how much bodily fluid you’re covered in) he allows you to roll away from him, still recoiling from the strong orgasm.

Surprisingly, the lazy asshole leaps off the bed first today. 

“I’ll be taking a shower first. Alone.”

You muster enough energy to glance at him, then at Osamu. It’s so awkward you’d run out of the apartment if you could. 

Osamu knows his brother is being especially kind today, letting him speak to you in private.

As Atsumu strides towards the bathroom, he catches Osamu’s eye and winks, smirking at Osamu’s middle finger.

Osamu can basically hear his twin’s inner voice— this is just payment for the fuck.

You shut your eyes, registering the closing bathroom door. Now that the pleasure has subsided, you realize that you’re just in pain. Your chest and hips, especially, from Atsumu’s relentless teasing and Osamu’s rough handling. 

Damn it. You’re meeting with your friends tomorrow, how’re you going to hide these marks on your neck from them? 

From the way Osamu had choked you, you’re almost certain there’s going to be a bruise. You do have that leftover, crusty concealer that Atsumu got you a few months back—

“y/n, do you hate me?”

Osamu’s deep voice interrupts your thoughts. 

Your mouth instinctively opens, but you hesitate.

No. 

“No.”

Because you really don’t. Despite everything they put you through, you can’t bring yourself to hate them. 

Osamu lets out a silent sigh of relief, turning back to look at you. 

“Do you love me?”

You can’t answer him as quickly this time. 

Osamu and Atsumu were your brothers. They had been by your side for all of your childhood.

 They were the first ones to teach you how to ride a bike, how to multiply and divide, how to cook rice. 

They had been your first love. And even now… you’re relieved they’re with you, not in the bedrooms of other girls.

“I… do,” you admit. Fuck. You’re crazy. You know that. But you do. 

Even though you don’t want to admit it, you’re just as twisted as your brothers. You bury your head under the covers as the heat rushes to your face. 

“I wanna marry you.” Osamu suddenly announces, ripping back the blanket you’re holding to your face. He examines your blushing cheeks, and reaches down to grab your hand. 

Yeah, it’d look much fucking better with a shiny ring. He should look into a jewelry maker first thing tomorrow morning.

“Nope. I already called dibs, ‘Samu,” the blonde haired setter interjects, throwing open the door as if awaiting his cue. 

“Like months ago. Actually, years ago.”

Osamu frowns, prepared to retort back that actually, remember that you didn’t even like her when we first met her? You told dad you didn’t want him to marry mom because you didn’t want a sister, you little–

“We’re all Miyas here,” you say, predicting another fight. Despite your tiredness, you can't help but smile. 

Yeah, you do love them.

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a/n fun fact: i wrote this while meeting with my business class project group two semesters ago >.< depraved shit FR.. also no final read-through as usual bc i'm literally cringed out by my own writing LOL