I'm not in one but I have a few female coworkers who are into it and have them. When they explain it, they usually explain it as being open about their "love" and feeling free and having all of their emotional needs met . It seems very strange to me. Sometimes I'll talk to them and ask them why their boyfriends don't care and they almost seem offend and say because hes not " posseive". The boyfriends will usually look like totally regular guys, not stud like but no ugly. So what's up with it? Is it like an attention seeking thing ? Seems like a polite excuse for open cuckholdery, hypergamy, and a underline homosexuality ( on the guy parts).