Bored siblings Michelle and her stepbrother find themselves alone and horny, their curiosity piqued by each other's bodies. Michelle starts by pleasuring herself in the bathroom, her fingers dancing on her wet pussy. Her stepbrother walks in, catching her in the act. They argue, but the tension is palpable, and soon they're naked, Michelle admiring her stepbrother's thick, hard cock. She fantasizes about it inside her, but their moment is cut short by an unexpected visitor.