Janet and Chrissy try to get Jack to join their gym. But he's not interested until he meets their trainer, Shirley. He then goes to the gym to hook up with her. However, the other trainer at the gym happens to be Shirley's brother, Harvey, who is extremely overprotective. Upon learning of Jack's interest in his sister, Harvey puts him through a rigorous program. Jack and Shirley agree to meet at her place. When Harvey learns of their date, he sets out to get Jack. But Janet and Chrissy intercept and invites him to their apartment. But Shirley decides to meet Jack at the apartment instead.