Tired of his sister's rejection, the horny stepson retreats to his room, stroking his throbbing cock until it's ready to explode. He jerks off furiously, picturing his sister's tight body and the taste of her pussy. As he nears climax, he hears her entering the room, but it's too late to stop. He groans loudly as he cums, shooting his load all over his stomach and hand, leaving him satisfied and spent.