Rion King, the strapping step-brother, finds himself in a heated predicament with his curvaceous, busty step-mother, Lacy Lennon, and her daughter, Kit Mercer. Lacy, uptight and disapproving, can't help but notice the growing tension between her step-son and daughter. In a moment of weakness, Kit confesses her taboo fantasy to Rion, causing him to tent his pants. Caught in the act, Lacy confronts them, but her stern façade crumbles as she witnesses the raw, undeniable chemistry between the siblings.