Sex party (group sex)

Group sex is sexual behavior involving more than two participants. Group sex can occur between people of all sexual orientations and genders. Group sex also occurs in populations of non-human animals such as bonobo apes and chimpanzees.

Group sex most commonly takes place in a private sex party or semi-public swinger gathering, but may also take place at massage parlors or brothels or, in some jurisdictions, at purpose-built locations such as sex clubs. In places where non-monogamous sex is taboo or illegal, group sex may take place in private or clandestine locations including homes, hotel rooms, or private clubs.

Fantasies of group sex are extremely common among both men and women, and group sex is a subgenre in pornographic films.

In principle, any sexual behavior performed by more than two people can be referred to as group sex, but various terms are used to describe particular acts or combinations of people. Many swingers argue that non-swingers have conflated the terms because of lack of understanding and that there are distinct differences among the terms with specific meanings as to number, intent, sexual orientation, and familiarity of the persons involved.

Fantasies of group sex are extremely common among both men and women. In major studies, between 54 and 88% of people fantasize about watching others have sex, between 40 and 42% fantasize about being watched by others, and between 39 and 72% fantasize about bondage. Many forms of sexual behavior were reported by Kinsey's subjects, but the official Kinsey Reports web site does not mention threesomes or group sex in the summary of Kinsey's findings.

A sex party is a gathering at which sexual activity takes place. Sex parties may be organized to enable people to engage in casual sexual activity or for swinging couples or people interested in group sex to meet, but any gathering where sexual activity is anticipated can be called a sex party.

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