The house was quiet except for the low hum of the fridge and the distant sound of rain on the roof. Mia, twenty-two, stood in the kitchen in nothing but an oversized t-shirt, pouring herself a glass of water. Her older brother Jake, twenty-five, walked in from the living room, shirtless, sweatpants hanging low on his hips. They had been dancing around this tension for months, ever since their parents left for the summer.
"Fuck, you look good like that," Jake said, voice rough. He stepped closer, eyes locked on the way the shirt barely covered her ass.
Mia set the glass down. "Don't start something you can't finish, big brother."
He grabbed her wrist and pulled her against him. His cock was already hard, pressing into her stomach through the thin fabric. "I've been thinking about this pussy all week. You gonna give it to me or keep teasing?"
She reached down and squeezed his dick through his pants. "Shut up and fuck me then."
Jake spun her around and bent her over the kitchen counter. He yanked the shirt up to her waist, exposing her bare ass and the slick lips of her cunt. Two thick fingers pushed inside her without warning. "You're soaked already. Dirty girl, getting wet for your own brother."
Mia moaned and pushed back on his hand. "Just do it. I want that cock."
He shoved his sweatpants down and lined up. The head of his dick pressed against her entrance, then he slammed in deep in one thrust. Mia cried out, gripping the edge of the counter as he started pounding her. Each stroke was hard and fast, skin slapping loud in the quiet kitchen. Jake's hands held her hips tight, pulling her back to meet every thrust.
"Goddamn, your cunt feels better than I imagined," he growled.
"Tight and hot. Taking your brother's dick like a slut."
Mia reached between her legs and rubbed her clit while he fucked her. "Harder. Don't stop."
Jake pulled out, flipped her onto her back on the counter, and hooked her legs over his shoulders. He drove back in, deeper this time, the new angle hitting spots that made her vision blur. Sweat dripped from his chest onto her stomach as he kept up the relentless pace. Her tits bounced with every slam.
They moved to the couch next. Mia climbed on top, sinking down onto his cock and riding him hard. She leaned forward, tits in his face, and he sucked a nipple into his mouth while she ground her hips. "Tell me how much you love fucking your sister," she demanded.
"Love it," he grunted, thrusting up to meet her. "Love stretching this pussy. Love watching you bounce on my dick."
She came first, clenching around him, nails digging into his chest. Jake flipped them again, putting her on all fours on the cushions. He fucked her from behind, one hand in her hair, the other slapping her ass. "Gonna fill you up," he warned.
"Do it. Cum in me."
He buried himself to the hilt and unloaded, pulsing deep inside her. They stayed locked together for a long minute, breathing hard. Then Jake pulled out slow, watching his cum drip from her used cunt.
They didn't stop there. Later that night they moved to her bed, fucking again in the dark—slow and grinding at first, then raw and urgent. Jake ate her out until she came on his tongue, then fucked her missionary, staring into her eyes while he talked filthy. "This pussy belongs to me now. Say it."
"It's yours," Mia gasped. "My brother's cock owns it."
By morning they were tangled in sheets, bodies sore and satisfied, already planning the next time the house would be empty. The forbidden heat between them had finally boiled over, and neither wanted it to cool.
