Teen sister Michelle finds herself alone with her stepbrother, both restless and frustrated. She retreats to the bathroom, fingers her wetness, and strokes her ample curves, trying to keep quiet. Caught in the act by her brother, they argue, but later Michelle, still horny, suggests they masturbate together. Naked, she takes in his thick, hard cock as he jerks off, her mind filled with fantasies of that massive dick inside her. Their moment is cut short, however, by an unexpected intrusion.