When performing passive anal intercourse, the passive part is taken over by the person whose anus is being penetrated. This role is also referred to as the ano-receptive part since the erogenous zone of the anus is sexually stimulated. Due to the excitation of the prostate, men can experience an orgasm, while the A-spot and the vaginal tissue of women are stimulated.
During anal intercourse, a very erogenous zone of the anus is being stimulated. Numerous nerves end here which makes active as well as passive anal intercourse especially stimulating.
When it comes to anal intercourse, it can be distinguished between an active and a passive role. However, both variations can be very stimulating due to different characteristics. The active part is the penetration of the anus which can be even more stimulating than vaginal intercourse since the anus is a much tighter.
Anal is the colloquial or simplified expression for anal intercourse, during which the erect penis penetrates the anus of the sexual partner. This form of intercourse can be practiced by both, heterosexual couples and homosexual partners, and is always referred to as anal intercourse.
Like many technical terms, this expression also stems from Latin in which anus is called anus as well. Another expression for anal intercourse is pedecatio or buggery.
It has to be distinguished between actual anal intercourse and mere anal stimulation. While anal intercourse can only be performed with a penis, the anus can be stimulated by other body parts. Thus, the different forms of anal stimulations are referred to according to the different practices of stimulation.
Fisting can explicitly been seen as a form of anal simulation with a finger, the entire hand, or more than one hand, which are all brachio-proctical variations of fisting. There is also a brachio-vaginal form of fisting in which not the anus but the vagina is penetrated by one or more hands.
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.
It is also possible to stimulate the anus with objects such as sex toys. There is a wide range of sex toys available which are even especially designed for certain sexual practices.