Teenage siblings, both hormonal and curious, find themselves alone in the house. The sister, a busty, big-assed teen, retreats to the bathroom for some private time, her fingers dancing over her wet pussy. Her brother, overhearing her muffled moans, busts in, catching her in the act. They argue, but the tension is palpable, and soon, they're both naked, the brother's thick cock on full display. The sister can't resist, fantasizing about that massive dick inside her. Just as they're about to act, a sudden noise forces them apart.