Have done the FMF scene a few times and it can be GREAT! For the man anyway.

Did learn a lot about human dynamics though. Firstly was with my ex and her best friend. Spent a lot of nights in bed (in clover) but it inevitably led to jealousy from my ex. Imagine waking up and finding your husband enjoying himself quietly inside your best friend. Especially if you were not feeling like it and he didn't have anything left for you anyway. Also the male gets a bit confused about just whose bottom he is allowed to pat when all three are out shopping. Over all - not a great idea as it put a lot of strain on the relationship until the friend moved away.

With another ex had a delightfully spectacular evening with a little brown lady we rented while on holiday in Thailand. It really is fun watching your lady make another one come, and she enjoyed the experience as well. She went down on her with no hesitation and the two of them had so much fun that my contribution was a bit of an afterthought. After our assistant had left, ex and I spend the rest of the night making love like teenagers.

Haven't had the chance to repeat the event with my present lady, but if the chance comes up AND IF THE PARTNER JUST COMES, CUMS AND GOES, we will jump at the chance. I suggest you think the same way when picking the lucky third party.