Deviant sexual intercourse is, in some states in the USA, a legal term for 'any act of sexual gratification involving the sex organ

Sex organ

A sex organ, or primary sexual characteristic, as narrowly defined, is any of the anatomical parts of the body which are involved in sexual reproduction and constitute the reproductive system in a complex organism; flowers are the reproductive organs of flowering plants, cones are the reproductive...

s of one person and the mouth or anus of another, anus to mouth or involving invasion of the anus

Anus

The anus is an opening at the opposite end of an animal's digestive tract from the mouth. Its function is to control the expulsion of feces, unwanted semi-solid matter produced during digestion, which, depending on the type of animal, may be one or more of: matter which the animal cannot digest,...

 or vagina

Vagina

The vagina is a fibromuscular tubular tract leading from the uterus to the exterior of the body in female placental mammals and marsupials, or to the cloaca in female birds, monotremes, and some reptiles. Female insects and other invertebrates also have a vagina, which is the terminal part of the...

 of one person by a foreign object manipulated by another person'.

Typically, the act itself is not a crime, but the term is used to describe forcible or otherwise involuntary acts that differ from the crime of rape

Rape

Rape is a type of sexual assault usually involving sexual intercourse, which is initiated by one or more persons against another person without that person's consent. The act may be carried out by physical force, coercion, abuse of authority or with a person who is incapable of valid consent. The...

, in the way that indecent assault

Indecent assault

Indecent assault is an offence of aggravated assault in many jurisdictions. It is characterised as a sex crime.Indecent assault was an offence in England and Wales under sections 14 and 15 the Sexual Offences Act 1956...

 might be used in other states and countries.

In the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 the term has replaced sodomy

Sodomy

Sodomy is an anal or other copulation-like act, especially between male persons or between a man and animal, and one who practices sodomy is a "sodomite"...

 in the criminal codes of some states, including Texas

Texas

Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...

 and Kentucky

Kentucky

The Commonwealth of Kentucky is a state located in the East Central United States of America. As classified by the United States Census Bureau, Kentucky is a Southern state, more specifically in the East South Central region. Kentucky is one of four U.S. states constituted as a commonwealth...

.