Bored and alone, a gay brother and sister resort to self-pleasure to pass the time. Michelle fingers her wet pussy while stroking her big ass, while her brother showers nearby. Catching her in the bathroom, he bursts in excitedly, only to be met with her anger. 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.