This is the true story of our first threesome experience (MMF). I am Steve, and my fiancée is Diana. We are a slim and attractive couple, both in our mid-thirties. Diana is around 5ft 8ins, very attractive, slender, with brunette shoulder length hair. I am 6ft 2”, medium build with short dark hair. We had been on the swinging scene for a couple of years but due to a hectic everyday life we rarely managed to meet people or...