My partner and I really enjoy playing with a third (either male or female), but we are always both involved in the action — well, he’s not involved with the guy, but we are always both right there. I like seeing him with someone else and although I’ve had twinges of jealousy (as has he), it’s not a major issue. People can be so possessive and and controlling, and it’s mostly their own insecurities in play. Being real, being honest, not getting hung up on old monogamy paradigms…. it can be a whole lot of fun as long as you both agree to the terms.