Oral stimulation of other parts of the body, such as by kissing or licking, is not considered oral sex. Anilingus, another form of oral sex, is oral stimulation of the anus. Cunnilingus is oral sex performed on the vulva or vagina, while fellatio is oral sex performed on the penis. Oral sex, sometimes referred to as oral intercourse, is sexual activity involving the stimulation of the genitalia of a person by another person using the mouth (including the lips, tongue, or teeth) and the throat. Painting of a man performing oral sex on a woman