troilism: a paraphilia of the mercantile/venal type in which sexuoerotic arousal and facilitation or attainment of orgasm are responsive to, and dependent upon observing one's partner on hire or loan to a third person while engaging in sexual activities, including intercourse, with that person [from French, trois, three]. A threesome or group-sex party does not, per se, constitute a paraphilia. There is no technical term for the reciprocal paraphilic condition of being observed by a third party while on hire or loan. (adjective, troilistic): the condition in which a person is dependent on being the third member of a sexual partnership, or on fantasizing being so, in order to obtain erotic arousal and facilitate or achieve orgasm. Typically, a husband arranges that his wife has another male partner, so that he can fantasy her in the role of a whore, without which he cannot become aroused. See also autagonistophilia.

Dictionary of Sexology Project: Main Index

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