In the dim light of his locked room, the stepbrother's body glistens with sweat as he masturbates fervently. His hand, slick with pre-cum, slides effortlessly up and down his engorged cock. He leans back, his other hand cupping his balls, gently rolling them as he fantasizes about his stepsister's tight, wet pussy. His breath comes in ragged gasps, his grip tightening as he nears his climax, the thought of her name on his lips as he spills his load onto his abs.