English Dictionary

troilism

/ˈtɹɔɪlɪz(ə)m/

noun

The practice of two people having sex while a third person watches (and may or may not take part). / The practice of three people having sex, i.e. having threesomes.

Troilism is a sexual practice involving three people.

意味（1）

The practice of two people having sex while a third person watches (and may or may not take part).

Troilism is primarily a male problem, but one case of a woman who watched her husband have intercourse with a young girl has been reported in the literature (Smith, 1976).

意味（2）

The practice of three people having sex, i.e. having threesomes.

Now if it's true, as I believe, that every woman has a bit of a lesbian streak, or at least curiosity, then it follows that the ideal way to satisfy it is with troilism — making love with two girls and a man. I've tried it myself and I know.