My husband & I have an open marriage, mainly because I'm bi & he doesn't think it's fair for me to be stuck w/just him. My parents were former hippies, so I was brought up in a fairly open-minded household & didn't have the taboos on nudity & sexuality that a lot of people were brought up with.

Some people don't like to be restricted to just one sexual partner. There's a lot of variety on earth, and some folks might feel they're missing out on something. Other people like to do it for the shock value. Some people are afraid of committing to just one person because it might go stale or get boring. Some people honestly have the ability to love more than one person at a time.

Polyamory is not for everyone - there's a high potential for excessive drama being dragged into a relationship, and feelings can get hurt, but I always encourage people to experiment sexually - just make sure you use protection.