Ok I'm all new to this (and new here) so maybe I'm not in a position to comment but I can't help myself.
Having only one experience so far (may change this weekend) I will say that I would NEVER do this without my husbands knowledge!!!
A huge part of the turn on for me was the fact that he was present and truly loved what was happening. I was very nervous at first until I saw for sure that he was very ok with it all. From that point I was able to totally let go. There may come a time when I am alone with a black man but that would only happen if my husband had prior knowledge and fully approved. I could absolutely have no fun or excitement if I was going behind his back. I just don't get the whole thing of you guys did it together and had great fun but then you wanted to cheat. Cheating is wrong but thats double wrong! It was his idea to start with so apparently its a big turn on for him. By going behind his back not only are you flat out cheating but you are being selfish and robbing him of the excitement that he supposedly got into.
I apologize if I have overstepped my welcome but come on, really???