The sound of soft moans echoes through the house, drawing the sister to her brother's door. She pushes it open, revealing him sprawled on the bed, his hand wrapped around his throbbing cock. She watches, mesmerized, as he strokes himself, his eyes closed, lost in his fantasy. She can't resist the urge to join him, climbing onto the bed and taking his cock in her mouth. He groans, his hips bucking as she sucks him deep. She climbs on top, impaling herself on his cock, and they fuck wildly, their bodies slapping together, their voices raising in a chorus of pleasure and depravity.