My wife and I have been married for 12 years and we are in our 30s my wife is just over five feet tall size ten nice figure. I like a lot of other men have I have wanted to watch my wife with another man. I have asked her if she would like to do it but she has never shown interest saying that I am enough for her, although I only have average 6 inch cock. We had a holiday in Devon a couple of weeks ago and something happened to alter my wife's way of thinking. We drove to a little country pub where we had a couple drinks , my wife said that she was feeling a bit frisky so we left the pub and went to the car park on the way there was an unlit area so I said lets go in there we found a ledge that came of of the wall by about 15 inches so I sat on it and pulled my wife to me and we started kissing and messing about she unzipped my jeans and pulled my cock out then she lifted her skirt and took her panties off she then got astride of me on the ledge and she started to ride me. While we were kissing I saw a man about 20 feet away wanking while watching us,he moved closer and that is when I saw his cock it was huge, his fist was around the base and he still had about 8 inches sticking out, it had to be about 2 ins across .My wife was still riding me getting faster, my mind went into a kind of daze as I waved him forward he moved to about 8 feet from us still slowly wanking his huge cock my wife started to go faster and brought us both off and slumped forward with her head on my shoulder I pulled out of my wife leaving her arse sticking out. The man came up behind her and in a flash he thrust his cock into my wife she gasped and tried to turn around but I held her and started kissing her so that she could not turn her head she then started to pant her head fell onto my shoulder again as the man started to fuck her hard until I could hear him slapping against her arse witch meant that he was all the way in I thought my wife was going to faint as she was making strange gasping noises then she let out a stifled scream and then slumped down the man had cum inside my wife with a great force he then pulled out his cock witch looked even bigger up close. He just smiled at me and disappeared into the dark .It took my wife about ten mins to come back to normal as she got down to her feet she had to hold onto me as her legs gave way under her.I walked her to the car and helped her into her seat.I then lifted her skirt up and saw her puffy lips and what must have been half a cup of cum in a puddle between her legs.