The Latin verb "fellare" is usually used for a woman performing oral sex on a man. Accusing a man of fellating another man was possibly the worst insult in all Roman invective. It was an act that might be requested from women who were "infames", and not something a husband in a respectable household would have expected from his wife. Fellatio was seen as a "somewhat laughable" preference for older men who have trouble maintaining an erection, but graffiti show that the skills of a good "fellatrix" were enthusiastically utilized. Fellatio was a fairly uncommon subject in Roman art.