The stepbrother's hands glide over his sister's naked body, kneading her muscles, caressing her curves. He lingers on her thighs, her ass, his breath hitching as she squirms beneath him. She turns her head, catching his gaze, and a smile spreads across her face. She reaches back, guiding his hand to her wetness. He rubs her clit, his fingers slipping inside her. She gasps, her body tensing as she comes, her joyous cries filling the room.