A brother and sister, isolated together, find themselves drawn to each other's bodies. She tentatively touches herself, her moans echoing through the empty house. He enters, catching her in the act, and they share an intense, heated moment before deciding to masturbate openly in front of each other. Her eyes widen as she takes in his size, her imagination running wild with thoughts of his thick cock inside her. Their moment is cut short, however, by an unexpected intrusion.