Sex with Another Couple? Anyone had it?

Hi. My girlfriend and I had sex with another couple and it was really weird. Sometimes I cheat on my girlfriend, but this was like cheating in public. Cheating that she is aware of. I am still not sure how should I feel over it. Anyone had sex with another couple?

Hi. My boyfriend and I have never had sex with another couple. It sounds interesting, though. I guess it`s in human`s nature to explore every single possibility, when it comes to sex. I had sex with two guys and it was weird enough. My boyfriend doesn`t know anything about it. I am planning to tell him one day. We were together at the time, so it is pretty hard to tell I was cheating on him with two guys.