Mina slammed the dorm door shut behind her, her tight stage outfit still clinging to her sweat-slicked skin after the concert. Her younger brother, Jihoon, was waiting on the couch like always, eyes locked on her long legs and the way her skirt rode up. "You looked fucking hot out there, noona," he growled, already palming his cock through his jeans.
She didn't waste time with talk. Mina dropped to her knees, yanking his zipper down and freeing his thick shaft. "Shut up and feed me this dick like you did last night," she said, voice low and filthy. Her tongue dragged up the underside, tasting the pre-cum already leaking out, then she swallowed him whole, gagging as his cock hit the back of her throat. Jihoon grabbed her hair and fucked her face hard, hips snapping forward while she choked and drooled down his balls.
"Goddamn, your mouth is better than any fan's pussy," he grunted. Mina pulled off just long enough to spit on his cock and stroke it fast. "You better save some for my cunt. I need my little brother stretching me open again." She stood, peeled off her soaked panties, and climbed onto his lap, sinking down on his dick in one rough motion. Her walls clenched tight around him as she rode him hard, tits bouncing in his face while he sucked her nipples through the thin fabric.
Jihoon flipped her onto the couch, spreading her legs wide and slamming back inside. "Take it, slut. Your brother's cock owns this hole." He pounded her deep, skin slapping loud and wet, her juices coating his shaft every time he pulled out. Mina moaned like a whore, fingers rubbing her clit while he railed her. "Harder, fuck me like you hate me. Fill your noona up."
He didn't hold back. Jihoon drilled into her until her legs shook, then pulled out and flipped her onto all fours. He shoved back in from behind, gripping her ass and spreading her cheeks so he could watch his cock disappear into her dripping pussy. "Look at this greedy cunt sucking me in. You been thinking about this all night on stage, haven't you?" Mina pushed back against him, meeting every thrust. "Yes, fuck, I was wet the whole set knowing you'd wreck me after."
They kept going until Mina came hard, her pussy spasming and squirting around his cock.

Jihoon followed right after, burying himself balls-deep and pumping thick ropes of cum deep inside her. He stayed buried, grinding slow while the mess leaked out around his shaft. Mina reached back and spread herself wider. "Don't pull out yet. Plug me with that load so it stays in all night."
Later they moved to the bed, Mina on her back with legs over his shoulders while Jihoon fucked her slow and deep this time, both of them filthy with sweat and cum. "Tell me how much you love your brother's dick," he demanded. "I fucking love it," she gasped. "Love when you use me like a cheap incest whore." He came again, adding to the mess inside her, then pulled out so she could suck him clean, tasting their mixed juices on his softening cock.
They didn't stop until the sun came up, bodies tangled and spent, already planning the next time they'd sneak away for more raw, secret fucking.