"Let's get undressed then so we can start off," said I.We undressed, taking our time and hanging our clothing carefully on hangers and chairs so that ...on returning home the girls would be neat and not mussed up, for Mrs. Mooring would be sure to inspect them looking for signs of my having tampered with their virtue.We sat on hard wooden chairs in what would become my boudoir, but which for now contained an old, much used mattress upon which I intended to sleep provided it proved lice free. Lice. Then I suddenly got an idea, if my wife wants to show off to yng teens and they want to watch, well I'll give them both something to enjoy. I slammed my beer, took my shirt off, now completely naked except for my shoes and socks, and opened up the patio door. I stepped outside into the backyard and began to walk over to Wendy, dick in hand slowly stoking it in the process. As I approached my wife form her backside, I motioned to the yng teen up in the treehouse, putting my finger up to my mouth. So I just made her bend with the support of bed and from behind. I pulled down the leggings and inserted my dick in her hairy pussy.OMG, it was so warm inside. She started releasing juices and her pussy hairs started becoming sticky. The sound tap tap when I was banging her was coming as an echo in the room. Soon there was a knock on the door. We stopped and was shit scared. I asked her to hide in the washroom.I dressed and opened the door. It was a service boy and he came to check if we need. But since that night, where we didn’t actually fuck, I hastened to add, the sexual tension has been on a whole new level.I guess it stems from the fact that neither of us are quite sure where we now stand, and in the cold light of day, aren’t particularly keen to address it. Suffice it to say, we slept in the same bed as each other that night, and she fell to sleep naked in my arms - after giving me the most wonderful blow job of my life.To Catherine, it was apparently just a ‘little fun’..