one word - OVERRATED!!!
Movies / Porn / Fantasies / Imagination - they are fun. But in actuality, especially in a serious and/or meaningful relationship, its BS! Maybe it was just me. My girl and I set the rules, she seemed to have a good time. At first i felt jelous and a little horny that another naked guy was touching my girl. But later on, i couldnt concetrate and get into the action properly because i felt like my girl was being disrespected. Other guy, was already in her and she was giving me a bj that i wasnt enjoying. When other guy finished, we just told him to leave and vowed never to do such a thing again!
Maybe it works better for not so serious or not serious at all relationships. I know i liked it better when it was just fantasy or i waswatching porn....