Britt Blair's stepfather secretly fantasizes about her. When he falls ill, she agrees to take care of him, but only to instruct him a lesson. When he becomes bedridden and needs medication, she secretly interchanges his pills for Viagra. She shortly discovers her stepfather's immense weenie and realizes her beau is nothing compared to him. But her stepfather gets angry and feels betrayed when he finds out about the prank. Britt determines to use her figure to please his dreams and embarks performing various sexual acts, such as deep throating, riding him cowgirl style, and providing him blowjobs. Despite her devious act, her stepfather can't help but be attracted to her, and he eventually gives in to her seduction. A wild, dirty, whorish lovemaking session ensues!