Ass to mouth is a colloquial term for the removal of the penis from the passive partner's anus followed by the immediate insertion of the penis into the passive partner's or another partner's mouth.
It is also known as A2M, ATM, or Arse-to-Mouth. Ass to mouth generally excludes cleaning the penis or other object after its removal from the anus and before its insertion into the mouth for the sake of increased sexual excitement and pleasure domination/humiliation of the passive partner. "Ass to other girl's mouth," abbreviated as A2OGM or ATOGM, specifically describes the variant of the act where the penis is moved from one partner's anus to a different partner's mouth. Another variation is known as A2P, ATP, or Ass-to-Pussy which refers to removing the penis from the anus and inserting it into the vagina. The term has been used since at least January 1995 and clearly defined since at least August 1996. Despite its health risks, it is prevalent in pornographic films.
The health risks of ass-to-mouth include the risks of both oral sex and anal-oral contact. Unprotected oral-genital contact involves the risk of contracting sexually transmitted diseases, such as genital herpes or intestinal parasites. The recipient of ass-to-mouth is also at risk of infection by Hepatitis A.
It is unknown whether thoroughly washing the anal area and applying an enema results in reduced risk of disease. Porn-industry performers often use enemas prior to filming anal sex sequences; however, the purpose is to eliminate the possibility of any fecal matter appearing on film, rather than disease prevention.
In the film Clerks II the main characters have a discussion on ass to mouth early in the film, and it is alluded to repeatedly throughout the film.
This article is based on "Ass to mouth" from the free encyclopedia Wikipedia (http://en.wikipedia.org). It is licensed under the terms of the GNU Free Documentation Licencse. In the Wikipedia you can find a list of the authors by visiting the following address: http://en.wikipedia.org/w/index.php?title=Ass+to+mouth&action=history