Trapped in a tiny bathroom, a brother and sister, both frustrated and horny, resort to self-pleasure to find relief. The sister, Michelle, fingers her wet pussy and strokes her big ass, trying to be quiet. But her brother catches her, and they argue heatedly. Later, they make amends and decide to masturbate openly in front of each other. Naked, Michelle takes in her brother's thick, straight, huge cock as he jerks off lustfully. Soon, she fantasizes about feeling that massive dick plunging into her tight cunt. Just as they're about to act on their mutual yearning, someone enters, forcing them to abruptly end their erotic encounter.