Bored siblings, Michelle and her stepbrother, find themselves alone in the house. Michelle, in the bathroom, begins to masturbate, her wet fingers dancing over her clit. Her stepbrother, eager for a shower after a sweaty day, bursts in, catching her mid-act. He freezes, his eyes locked on her naked body, his cock twitching. They argue, but the tension is palpable. Michelle, emboldened, asks him to join her. He hesitates, then strips, his thick cock swinging free. They stroke themselves, the sound of their wet flesh filling the room. Just as Michelle leans in to taste him, the front door creaks open, forcing them to leap apart, their hearts pounding.