Threesome
sexual activity that involves three people at the same time

In human sexuality, a threesome is "a sexual interaction between three people whereby at least one engages in physical sexual behaviour with both the other individuals". While the term threesome typically refers to sexual activity involving three participants, it has at times been used to refer to a long-term domestic relationship, such as polyamory or a ménage à trois.
A threesome is a form of group sex that typically occurs in private settings, such as spontaneous sexual activity among three friends or in the context of casual sex or a hook up. A threesome may occur in specific contexts or environments that allow for sex, such as swingers events, orgies, or sex parties. Threesomes are a common element of sexual fantasy, and are widely depicted in pornography.
Types
The people in a threesome may be of any gender and sexual orientation. Each participant may engage in any type of sex act with one or both of the others, such as vaginal, anal, oral, or manual sex. One or more of the participants may engage in autoerotic sexual activity, such as masturbation, possibly without physical contact with the other participants. It is a matter of subjective definition whether participation of a third person without physical contact constitutes a threesome and this sort of sexual activity might instead be interpreted as voyeurism or cuckolding or cuckqueaning. Troilism is a term that encompasses both threesomes and cuckoldry, although its usage across literature is inconsistent.
The public source identifies “Threesome” as sexual activity that involves three people at the same time. This brief keeps that definition visible, then builds a research path around Threesome, sexual and activity.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 10, 2026. The linked authority identifier is Q1164348. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Threesome” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.