A fresco in Pompeii, showing a cunnilingus. The fresco dates to about 79 AD
Cunnilingus is when a man (or another woman) has oral sex with a woman. He licks her sex organs with his lips and tongue. The word comes from a Latin word for the vulva (cunnus) and from the Latin word for tongue (lingua).
The clitoris is the part of the woman's sex organs that has the most feeling. Sometimes, a woman may have an orgasm during cunnilingus.
In the past, some thought cunnilingus to be taboo (bad). People in some countries still think of it as taboo. However, many people in western and other cultures have oral sex.