Gina Gershon and Elizabeth Berkley
Movie: Showgirls (1995)
Nomi (Berkely) and Cristal (Gershon) are super-hot ladies who dance topless for a living in Vegas. They're rehearsing a dance number when Cristal, who is bisexual, becomes suddenly irresistably attracted to Nomi. Down comes Nomi's top and Cristal is safe at second base (we're talking both hands). They go in for the kiss and Cristal says, "You see, darlin'—you are a whore." This apparently kills it for Nomi, who runs off.