She pushed the bedroom door shut and locked it, her breath already ragged. "We can't keep doing this," she whispered, but her hands were already on his belt, yanking it open. Her brother grabbed her hips and spun her around, bending her over the edge of the bed. "Shut up and spread your legs," he growled, shoving her skirt up. Her panties were soaked through. He ripped them aside and slammed two fingers into her wet cunt without warning. She moaned loud, pushing back against his hand.
He finger-fucked her hard and fast, the wet sounds filling the room. "This pussy belongs to me," he said, curling his fingers against her spot. She came quick, thighs shaking, juice running down his wrist. Before she finished, he pulled his cock out and drove it straight into her. She cried out, gripping the sheets. He pounded her from behind, balls slapping her clit with every thrust. "Fuck your sister harder," she begged, voice dirty and broken. He reached around and rubbed her swollen clit in tight circles while he fucked her deep.
They switched positions fast. She climbed on top, sinking down on his thick cock until her ass hit his thighs. She rode him rough, tits bouncing in his face. He sucked one nipple hard, biting just enough to make her yelp.
"Tell me how much you love fucking your brother," he demanded. "I love it," she gasped, grinding down. "I love your cock stretching my cunt." He thrust up to meet her, hands bruising her hips.
Later he had her on her back, legs pushed to her chest, fucking her so deep she felt it in her belly. Sweat slicked their skin. She clawed his back and came again, walls pulsing around him. He didn't stop. He kept slamming into her until he pulled out and shot thick ropes across her tits and stomach. She rubbed his cum into her skin, then licked her fingers clean while he watched.
They lay tangled afterward, breathing hard. "Tomorrow night," she said, already planning the next time. He nodded, fingers tracing her swollen pussy lips. "Tomorrow night."
