We live out in the country and have a nice large secluded garden and in the garden we had a small caravan which we used as changing rooms for the swimming pool.
One night my wife Sarah, our sex buddy Simon and I were playing around in the lounge. We were sitting side by side on the couch and had persuaded Sarah to strip down to her skimpy bra and panties and we both had our erect cocks out of our trousers and were sucking her tits and fingering her pussy and everyone was really turned on. As a 34 year old with a wonderful 36-34-36 figure and great tits she is a very, very sexy lady.
Sarah was worried that the au pair or the children might wake and come down and catch us out but she did not want to stop playing so we decided we would adjourn to the garden caravan, something we had never done before.
I went on ahead to put on the heating and left Sarah and Simon to bring up the drinks.
When Sarah walked into the caravan she was wrapped in a towel and so was Simon. Sarah put down the drinks and bent forward to pour a glass and while she was doing so Simon undid his towel and then hers and threw them both to the floor revealing that they were both naked. Sarah's bra and panties had been lost somewhere after I left them alone which I took as a good sign.
As a confirmed voyeur married to a confirmed exhibitionist I really love seeing Sarah being sexually aroused , stoked and played with by other men. There is something so three dimensional about being part of a sexual scene with someone who you value highly, but who is relaxing into a purely sexual and erotic event just for the sheer enjoyment of the moment. It is watching live porn, but of an intensely relevant and important kind. We had been regulars at fetish clubs, Sarah is completely bi-sexual but lately she was more turned on by two men playing with her and we had been having a great occasional threesome scene with Simon for some time. We normally keep to just playing but this evening went a little further.
Having dropped both towels Simon stood behind Sarah and pressed his erection into her bum and then slowly reached round to finger her pussy. From my position sitting on a couch I could see as she eased her legs slightly apart to give him access to her clit. As Sarah straightened up Simon's hands went to start playing with her erect nipples as she arched her back against him, rubbing her arse on his cock.
As much as I like watching I pulled off my pants and naked I went to join them and pushed my erection between Sara's legs and began kissing her and sucking her nipples with her in a naked sandwich between two rampant guys.