I discovered that my brother and his wife Judy were into swinging. Can't tell you how I knew as it could get me into deep water. But having found out I had to see if it was true. For some reason my girlfriend didn't like Judy although she did get on OK with my brother. We followed them to a restaurant and managed to get a secluded table so we could see them but it was unlikely that they would see us. Then the other couple arrived. I was now jealous of my brother, besides Judy being quite tasty the woman that had just turned up was a real fox. They sat with my brother next to the fox and Judy with the other woman's husband on a separate table.. As the evening progressed it was obvious that my brother was smitten with the fox, but whilst Judy was ok with the husband she wasn't quite so taken with him. After the meal my brother paid their bill and after a few brief words with Judy and the husband he and the fox left together. A short while later the husband paid their bill and he and Judy left together. My wife and I went home and knowing what we had just witnessed we fucked each other silly. As we cuddled afterwards I asked my wife if she had ever thought about swinging. Her reaction was, who was I wanting to swap with. I joked that I wouldn't mind a crack at that fox. To my surprise she retaliated by saying she wouldn't have been interested in the husband. Then she surprised me even more when she added that my brother was more the mark. I let it go and we were soon sleeping. The next morning was Saturday morning and as my wife woke I went down and licked and sucked her pussy. Suppose your thinking about the fox she toyed with me. Then as I started to fuck her, my wife was soon moaning loudly. Suppose it's my brother that's fucking you, I joked. Afterwards as we cuddled, my wife suddenly said that with the right couple she would consider swapping. In seconds my cock was rock hard and my wife was on all fours taking a good fucking from behind. About a fortnight later my brother brought Judy round and suggested that we all go out for a meal. My wife already had other plans and was already about to go out. She looked relieved as she could get away and not pretend to like Judy. Her lift arrived and with a kiss to my cheek she was gone. That left the three of us and we were also on our way out to a restaurant just a short walk away. As my brother returned from the bar his pager went off. He went outside to take the call and returned to tell us that he had a problem at work and had to go. Then there were two. During the meal all I could think about was the couple they had swapped with and the fox my brother went off with and that Judy went with her husband. It gave me a lazy lob on. After the meal as we walked home I told her I knew their secret. It didn't phase Judy one bit if anything it gave her a gleam in her eyes. Once indoors I suggested a coffee. Judy said she wanted something stronger than that and grabbed me in the groin area. She was at my zip trying to get it down and I was playing with her tits as I thrust my tongue in her mouth The moment she had my cock out she dropped to her knees and sucked nearly all of it in her mouth. I had gone from semi soft to rock hard in record time. I was still able to play with Judy's tits and in fact I had them out of her blouse and bra. Whilst I have always liked the look of Judy's tits I had always thought her best asset was her arse. It was like two eggs in a hankie the way the cheeks rolled around as she walked. I was now more than ready for that arse. I dragged her to her feet and bent her forward over the sofa and pulled her skirt up and her panties down to her knees. I buried my face into the space between those globes. Judy just groaned as my tongue made contact with her pussy. She was already wet down there and my sucking seemed to only make it wetter. I loved the Ooooh that escaped her as I liked from her clit to her arse hole and back again. There were several Aaaahs that also escaped as I repeated my tongue action . Then I needed more and I stood up and pushed my cock slowly but firmly between her pussy lips and on and in her vagina. Judy gasped as it entered and slid all the way in. Then she was thrusting back at my cock and controlling the speed at which we fucked. Judy was the first woman I had fucked since I married my wife and the excitement got to me all too quickly and I came deep in Judy's pussy. Then my cock was shrinking and slowly slipped from Judy's pussy. It fell out with a plop and a stream of our juices trickled out and down her pussy and leg. Then her pussy sort of farted which caused us both to laugh. Judy went off to the bathroom and I tucked my cock away. I was starting to feel guilty as I had cheated on my wife and on my brother. When Judy returned I told her how I felt and she laughed telling me that my brother had engineered tonight's events. He had spotted us in the restaurant a few weeks back and guessed that we knew what was going on. I told her that I was still guilty of cheating on my wife. Then Judy dropped a nuke on me as she told me that my brother was with my wife. They had talked a few days after we see them swap and my brother had propositioned my wife and she had jumped at the chance knowing that I liked Judy and that I knew she fancied my brother. Knowing that my brother was fucking my wife I dragged Judy to our marital bed and fucked her a second and third time that night. It felt just a little awkward when my brother brought my wife home in the morning and took Judy home with him. I broke the awkwardness when I asked had she had a good time and she sort of glowed as she said it was the best. she asked was Judy all I hoped for and I told her she was. It was now that we agreed to join the lifestyle and we never looked back. The fox, yes I got to fuck the fox at a party. She may have looked the part, but I was left wanting. She had the looks, but not the moves. I would have got more from humping a bag of spuds. Never mind there were plenty more.