In the dim light of his room, the teen's body glistens with sweat as he works himself into a frenzy. His hand moves rapidly, his grip tightening as he feels the familiar tingle in his loins. He's been fantasizing about his older sister, her sweet smile and the way her uniform hugs her curves. The thought of her pushes him over the edge, and with a guttural moan, he releases, his body convulsing as he paints his chest with his warm, sticky seed. He collapses back onto his bed, panting, his heart racing as he comes down from his self-induced high.