Greg, alone in his room, can't resist the urge to indulge in his forbidden desire. He's been caught in the throes of lust, his mind consumed by the thought of his step-sister-in-law. His cock, already hard, is aching for release. He strips naked, his breath ragged as he strokes his length. He's a man possessed, his tied penis throbbing with each pump of his fist. His moans fill the room, his fantasy playing out in vivid detail. He's close, so close, his body tensing as he nears the edge. But just as he's about to tumble over, he hears a noise, a creak of the door. He freezes, his heart pounding, his cock still throbbing, as he prays no one caught him in his most private, most taboo moment.