Bored sister and brother find solace in mutual self-pleasure. She starts by giving herself a discreet handjob in her room, but he stumbles upon her in the bathroom, catching her mid-act. Tempers flare, but they soon make amends, deciding to masturbate openly in front of each other. Naked, she takes in his thick, straight cock as he jerks off lustfully, while she fingers her wet pussy and big ass. The tension builds as they fantasize about each other, but their moment is cut short by an unexpected intrusion.