threesome

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.

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