Can you be in a committed relationship but still see other people no strings attached? Will it just lead to problems along the way? I'm assuming that both parties know about it, not talking about secretly cheating. It would be great if someone had actual anecdotes and/or real life experience but I guess theoretical discussions are OK too.
I had a girlfriend (Jenny) back when I was at college who wanted an "open relationship" with me. To be completely honest though, I wouldn't describe our relationship as "committed" as my feelings for her were fairly shallow and her's for me were probably even less substantive, but regardless, we were in a relationship and it was "open".
Oddly enough, being in this relationship seemed to make me more attractive to women who knew about it. For them, knowing that I was in an open relationship seemed to give me some mystical magnetism that I hadn't had before hand. I got so much, umm, action, shall we say, I was spoilt for choice. I'm not exactly Brad Pitt either.
Of course, being a young male who wasn't used to this level of female attention, I went somewhat mad, like the proverbial child in a sweet shop and this is what ended up causing Jenny to end our relationship. She seemed fine with the idea of an open relationship and was happy enough to see other people herself, but when I started getting rather a lot more female attention than she got male attention it was game over...
I've never been as popular with the ladies before or since. I'd say, as long as you don't love the person you're in an open relationship with, it's a pretty good way to play the field, if that's what you're after. In my opinion though, monogamy is the only way to be with somebody you truly love. Love and "open relationship" is a recipe for emotional turmoil and ultimately failure of the relationship.
Stay unemotional and it's great fun, get emotionally involved and say hello to heartbreak.