best friend’s older brother sukuna knows you have a crush on him
There’s nothing he loves more than to fluster you. He gets off on the way you try not to look at him for too long, only stealing glances whenever he interrupts your hangouts with Yuuji to talk to his little brother. You always look away quickly when you realise you’ve been staring at his jawline for too long, stomach filling with butterflies when his red eyes meet yours with a wicked smirk.
He loves how subtle you think you are.
He loves wedging his way between you and Yuuji when you watch movies. He’ll manspread without a care until Yuuji moves to sit elsewhere, all the while your heart hammers when you feel his leg against yours.
He often thinks about a time he joined the two of you for breakfast one morning and he couldn’t stop staring at your hand as you held your spoon.
“Let me see your hand,” he said to you. You were bewildered, holding up a shaking hand for him to see before you were met with a tut. “Like this.” he showed you.
And so you did, with confusion. You sucked in a sharp breath when you felt him press his hand against yours. You could feel your cheeks warming, your whole body wanting to break out into a sweat as you tried to contain yourself. He looked at you through a half-lidded gaze, that turned to a grin. He wanted to know just how far he could push, slowly interlacing his fingers with yours as he said a sultry “so tiny.” before Yuuji slapped his forearm away.
That was the first time you started to wonder if he was as oblivious to your crush as you thought you’d lead him to be. Maybe he knew better than you.
But the endless girls he brought home on weekends made you believe otherwise. You hated hearing him with other girls, he wasn’t discreet and the girls weren’t quiet.
As if he needed anymore of an ego boost.
He was surprised to learn you weren’t a virgin, though. He overheard you and Yuuji discussing your first times. He was even more shocked to hear that you had a few notches on your bedpost of your own.
You aren’t as shy as he expected.
He knew he’d fuck you one day. You, however, never thought you’d get here. The opportunity arose when he invited you in when you arrived to his home to hang out with Yuuji a little early. He’d normally leave you to your own devices, but he couldn’t help himself. He flirted, hard. And how could you resist the guy you’ve had a crush on for so long.
You didn’t want it to be a quickie, or a one time thing, but you didn’t know when Yuuji would get home.
He wanted to know how good in bed you were, encouraging you to ride him. He lay flat on his bed, his heavy hands molding your supple flesh as you straddled him and bounced on his length like it was your sole purpose in life.
You wanted to give him a show, you wanted him to remember this encounter and give him a reason to fuck you again after this. You thought if you showed him what a good screw you are, this didn’t have to be a one time thing.
His facial expressions gave him away. You’ve never seen him look anything but cool in the whole time you’ve known him. But with him beneath you like him, he’s almost — but not quite — pathetic. He looks desperate to fill you and you know he could easily manhandle you to where he wants you and fuck you as he pleases.
But you ignore the burn in your thighs as you keep going.
You’re loud. His fat cock fills you so beautifully and you can’t believe you managed to go this long without fucking him. He can’t believe how shy you’ve been with him for months when you can fuck like this.
Just as you’re about to freefall, just as you feel your orgasm lick at your spine, you hear the front door open. Yuuji calling up the stairs to ask if anyone is home.
You try to stop, but Sukuna won’t let you. He tips you forward and covers your mouth with a heavy palm. His feet planted firmly against the mattress as he pistons his hips against your flesh — sure to bruise.
“Cum, sweetheart, quick, gotta cum for me,” he whispers, his ruby eyes focused intently on yours in a bid to lure you into your release. He watches as you crumble, biting down on his lip as he feels your pussy wrapped tighter than ever, coaxing his throbbing cock to flood your insides.
You wanted to relax, to cuddle in the afterglow of what you just did. But you can’t, not unless you want to be caught. He spanks you in encouragement to move, watching as you hurry to clothe yourself while he lackadaisically puts on a pair of sweats and a vest. He turns on his TV, opening a window to help the smell of sex escape the room.
Yuuji knocks and enters, smiling when he sees you here already.
“We were just chatting.” you smile, a little too widely, but Yuuji doesn’t notice.
“Mmm,” Sukuna smirks. “We should chat more often."
