Bored siblings, Michelle and her stepbrother, find themselves alone and horny. Michelle retreats to the bathroom, fingers her wet pussy, and strokes her big ass, trying to keep quiet. Her stepbrother, however, catches her in the act. They argue, but later, they decide to masturbate openly in front of each other. Michelle's eyes widen at the sight of her stepbrother's thick, straight, huge cock. She fantasizes about feeling it inside her. Just as they're about to act on their mutual desire, someone enters, forcing them to abruptly stop.