Fifth season, A Tragedy of Telepaths: As part of the plan to break Na'Toth out of jail, Londo asks a female courtier to take off her clothes. She says, "Cartagia also played this game with me. But I'm afraid I'm not your size, Prime Minister." Or something similar to that.
**Points to quote above and laughs**
Did we see genitalia of any kind on FS? I can't remember just now.
(I also seem to be constructing a Crusade pimpin' icon in my head. How odd.)