Bored siblings Michelle and her brother, both horny and alone, resort to masturbation to pass the time. Michelle fingers her wet pussy, trying to be quiet, but her brother catches her naked in the bathroom. They argue, but later, they decide to masturbate openly in front of each other. Michelle takes in her brother's thick, straight cock as he jerks off, fantasizing about feeling it inside her. Just as they're about to act on their mutual desire, someone enters, forcing them to abruptly end their erotic encounter.