troilism是什么意思

n.(二女一男或二男一女同时进行的)三人间性行为

1. Troilism, also known as a threesome, involves three people engaging in sexual activity together. (Troilism，也被称为三P，是指三个人同时参与性活动的行为。)

2. They explored their fantasies and decided to try troilism to enhance their sexual experiences. (他们探索自己的幻想，并决定尝试一下三人行的方式来增强性体验。)

一种性行为，指的是三个人同时参与性活动的行为。