I'm sitting here in our kitchen, having a cuppa, after what has been one fantastic night. Our friends Tom and Marie, arrived yesterday, unexpectedly. They had no plans for the long weekend, so decided at the last minute to visit us, and took a chance that we would be home. We have been friends for some years but never have we discussed having a foursome or anything sexual for that matter. When they arrived, we had a few drinks and booked a table at a local restaurant for a late evening meal. Afterwards we went to the pub and had a few more beers and arrived home about 1am. We were chatting for ages and eventually Tom started telling some sexy jokes, which were very funny, especially after a bottle of wine. Marie has a lovely figure and was wearing a tight fitting minidress withi killer heals. She is about 5.6 in her bare feet and Tom is about 6 foot and keeps in good shape. Both Marie and Tom are 49 and 51 respectively. My wife Mags is 5.2 and is a size12 with lovely round tits and a perfect ass. Always wears sexy underwear, even going to work. She wears thongs all the time, some of which are very revealing and tiny. I am 5.8 and well built. Back to last night. As we laughed an joked, Mags excused herself and left the room, coming back after a few minutes, wearing a silk dressing gown, and you could tell she had nothing on underneath. Immediately I saw Tom staring at her, and he quickly said why don't we all get more comfortable and change out of our clothes into to something more suitable. We all agreed, but as we stood up Marie said, why can't we all just get naked, and started laughing. We are naturists so this did not bother us. Mags was first to be naked as she just slipped off her dressing gown while sitting on the couch. The rest of us started to undress and as we did I started to get hard and Marie said did I like what I saw. I glanced over at Mags, who just started smiling, and I said yes, and complimented Marie on her figure. Tom had a raging hard on and asked me would I mind if he sat beside my wife, I said of course not, as long as Mags didn't mind, and she agreed. I then moved over to where Marie was sitting. Before we knew it we were kissing and foundling each other. Out of the corner of my eye I saw Tom slide his hand up my wife's thigh and started fingering my wife's pussy. She was moaning with pleasure as this was the first time ever she was being touched by another man. Tom then started to kiss and suck her tits and this drove her over the edge and she came for the first time. When she relaxed a bit she then started to give Tom a blowjob and before long was straddling him and begging him to fuck her. She guided Tom's cock towards her pussy and he needed no encouragement whatsoever. All I herd her say was " fuck me Tom " , " fuck me hard". Marie and myself were watching for awhile, and it was really sexy to see my wife fucking another man. Something I have always fantasised about. I started to leak precum and Marie saw this and went down on me and sucked me hard. After a little while she said she wanted to feel my cock in her cunt and she turned over and I entered her from behind. It was fantastic to feel my cock up in her. To be having sex with another woman and watching my wife being fucked by another man, at the same time, was mind blowing. I couldn't hold back any longer and came hard in Marie's cunt. It was fabulous. I slowly pulled out and Marie asked me to suck her pussy, which I couldn't wait to do, so I licked and sucked all my own come out of her and she came twice in quick succession. Mags and Tom were watching us and suggested we go to the bedroom to be more comfortable. We all went upstairs and did it all again. We eventually fell asleep, Tom And Mags in one bed and Marie and myself in the spare room. I'm an early riser, so here I am in the kitchen with a cuppa. I just heard movement upstairs and I think I heard some moaning. Hears to round two.