In an unexpected twist, siblings Michelle and her stepbrother find themselves alone and horny. They start by masturbating separately, Michelle fingering her wet pussy and stroking her big ass, while her brother jerks off lustfully. Caught in the act, they argue, but soon makeup and decide to pleasure themselves openly in front of each other. Michelle's eyes widen at the sight of her brother's thick, straight, huge cock. Fantasizing about feeling it inside her, she's just about to act when someone enters, forcing them to abruptly stop.