I have been on an open relationship for 5 years. My fiance and I would have it no other way. The idea that I have to show my commitment to him by not doing something I enjoy seems ludicrous. We both find other people attractive and there is no reason we shouldn't pursue those people. For me sexual attraction has absolutely nothing to do with emotional attraction. I absolutely love my fiance, I could not imagine life without him. That being said I can't imagine sleeping with the same person for the rest of my life. He was a virgin when we met and I am the only girl he has ever dated. We originally opened our relationship because I didn't want to be the only person he ever slept with. Either we stayed together and he got to explore his sexuality with other women or we eventually broke up and he wouldn't be sexually shy or embarrassed. I didn't want to be the reason he couldn't approach women later on in life. We have been together a total of seven years now and everything has been amazing. We generally bring a third into the bedroom rather than doing our own thing. Knowing we have that option means a lot to both me and him though. I trust him to make his own calls because he is an adult and we both enjoy our autonomy. Our rules are always use protection, ask first or tell later (depending on the situation) and never have sex with certain people (really just my ex's and a few people we can't stand). We communicate constantly about whats going on and really enjoy talking about each others partners as well as watching each other have sex with someone else. I have been asked a lot if we plan to close our relationship once we get married, neither of us see a reason to do that. Why make changes just because we are tying the knot? It works now and it will work then.