Horny siblings, Michelle and her stepbrother, find themselves alone and bored. Michelle retreats to the bathroom, her fingers exploring her wet folds, moans echoing as she strokes her big, round ass. Caught in the act by her excited brother, they argue, but later, they decide to masturbate openly in front of each other. Michelle's eyes widen at the sight of his thick, straight cock. She fantasizes about it filling her tight cunt, but their tryst is cut short by an unexpected intrusion.