French kiss

"French kissing" redirects here. For the song, see French Kissing.
"Frenching" redirects here. For the procedure in vehicle modification, see Frenching (automobile).
For other uses, see French kiss (disambiguation).

A couple tongue kissingA tongue kiss, French kiss or snog is a kiss, usually romantic or sexual in nature, in which one participant's tongue touches the other's tongue and usually enters his or her mouth.

Tongue kissing stimulates the lips, tongue and mouth, which are all areas very sensitive to touch, and the practice is considered to be pleasurable, highly intimate, and sexually arousing. Unlike other forms of kissing (such as brief kisses in greeting or friendship), episodes of tongue kissing may often be prolonged, intense, and passionate. 'Tongue kissing' as a public display of affection is typically discouraged in many parts of the world.

Studying animal behavior, Thierry Lodé,[1] an evolutionary biologist, argues that the tongue kiss has a real function: to explore the sexual partner's immune system via the saliva.

The exchange of saliva in a tongue kiss may increase the chances of catching an orally transmitted disease such as human papillomavirus.[2]

The 1994 Chinese film Impetuous Fire caused controversy amongst some Chinese viewers for a kiss between Chinese-American actor Tim Chang and actress Sandy Wu.