The background to this story is that I am a 38 year old woman with an older and far more experienced lover, now husband who has taken me on some of the most amazing sexual adventures of my life, this is one of them. I hope you enjoy it as much as I did. This was my first experience of group sex with men. He was in London and all I knew was that the day before he went he had given me a train ticket to London and said "When...