In the 1930s, a man finds a woman undressing in the ladies room and they immediately hit it off. In the 1940s, women in the ladies room watch as a woman pressures her friend to take advantage of a drunk man. In the 1950s, two men immediately hit it off with a buxom woman and her friend in the ladies room. In the 1960s, the friend returns and seduces a plumber who installs a urinal. In the 1970s, a disco stud’s girlfriend bursts in the mens room to argue about him wanting a threesome. His lover walks in too. After some cocaine snorting, the stud and his lover convince the girlfriend to try the merits of a threesome. Finally in the 1980s, a punk couple learns to accept their post-operative transsexual friend, after she shows she’s still got what it takes.