Frustrated and alone, step-siblings Michelle and her brother find solace in self-pleasure. Michelle's fingers dance on her clit, her ass jiggling, as she tries to stay quiet. Her brother, however, catches her in the act. A heated argument ensues, but later, they decide to masturbate openly. Michelle's eyes widen at her brother's thick, massive cock. Fantasizing about it inside her, she propositions him, only to be interrupted by an unexpected intrusion.