Another form of anal stimulation is anilingus with the tongue stimulating the anus. The expression anilingus stems from the Latin words anus and lingere which means to lick. Colloquially this sexual practice is also referred to as tongue anal, licking ass, or analingus. When performing anilingus, the tongue can only stimulate but also penetrate the anus. This sexual practice can be performed by men and women of all sexual orientations since no primary or secondary sexual organs are involved.