I've been dating my current boyfriend for over 3 years, and we've done pretty much everything together sexually. I recently asked him (about a month ago) "If you could have sex with anyone that you know, who would it be?" and he answered one of my friends that I've been friends with for 5 years. He asked me in response as well, and I told him his best friend. He seemed pretty cool with it, saying as if it could happen, which came as a complete surprise to me because he usually protective of me. I started getting really determined on talking to his best friend about it, and setting up a time to do it (cuz all three of us live with our parents because we're all in university and can't afford to live alone, thus, can't do it with the folks around!).

But there's so much underneath this... his best friend has never had a girlfriend, let alone have sex, and he's told my boyfriend that he's had a serious crush on me for a while
(I think it's because we have similar interests and we get along really well. But I don't have any idea other than that). By the way, he's been best friends with my boyfriend for 9 years (3 times longer than he's known me).

The next thing is that my boyfriend told me about a week ago that it bothered him because he only wants to have sex with me (and we were both virgins before we had sex with each other). I've told him that he could have sex with my friend because I have no problem with him having sex with other girls, and that I would even find it hot. With him telling me that he didn't want me to have sex with him, I've been trying to get rid of the idea because it's almost become an obsession and I want to make him happy. But on the other hand, he says that he doesn't want me to forget about it entirely about it because he doesn't want to ruin my fantasy, as well, he says it may happen in the future, once we stop living with our parents.

This whole thing has made me kind of on edge for the past while, and I still can't keep the other guy out of my mind (because my boyfriend gave me the hope that something would happen soon). I just saw his best friend over the weekend, and it really cranked up my sex drive because I find him so attractive. I had amazing orgasms with my boyfriend, and he asked me why I was so easily stimulated, and I didn't have the heart to tell him it was because his friend made me so hot (not him), and that I really wanted him.

I don't know what to do at this point, because I can't get it out of my mind and I don't want to tell my boyfriend about it because I don't want to make him sad, or even angry at his friend because I'm so attracted to him. I mean, I don't feel that I'm letting him down in any other areas in our relationship, and I don't want to quit seeing him (because I feel we are so compatible, I love him so much, and I'm very much attracted to him otherwise), but I want to try something different.

Another fear that I have is that the best friend will reject me because he's my boyfriend's best friend. So I have two questions for my audience that managed to read my long, long "Ask," #1 being "What do you think I should do about my above situation?." and #2 (for all the guys out there) If you were a virgin and your best friend's girlfriend (who's also your friend now, because of their relationship) offered you commitment-free sex, with possible repeats (and consent from the boyfriend), would you do it?