I first met Claire at secondary school, She was a tall skinny blond girl with no tits to speak of, but she had a very pretty face that sometimes turned into a very cheeky mischievous face. I liked her straight away and decided I would date her. It took until we were fourteen before she would say yes and we started hanging out. All four parents were cool with us being together. Her family was far more religious than mine and up to the time we went off to universities the furthest Claire and I had gone was a bit of groping and good snogs. As one always does we said we would wait for each other and be together when we were finished Uni. We kept in touch and met up on some of the holidays. Then Claire dropped a bombshell that she had met some one and I assumed my sweet Claire was not so sweet any more. We still kept in touch by letters, but they got shorter and shorter. In my second year I left the halls pf residence and moved into a large house owned by a woman that had lost her husband early to a heart attach. She had three students staying to help her with the bills. It wasn't long before she took my virginity. Then I tried to sleep with the the campus, well the females there and was on a fairly good run. So I was far from being a virgin. After getting my degrees I moved back home and got a very good job. Claire did the same and we met up again. I felt guilty when Claire informed me that she had stayed faithful and although she dated boys she had not gone past groping. I came clean that I had not stayed faithful, but never told her that I had probably bedded around forty girls and of course the landlady who was always there when I didn't have another bit of pussy. I was surprised that Claire forgave me, and we started to date again. By this time Claire had filled out and had a shapely figure with a 34C bust. Claire still wouldn't go past fondling and snogs and said not before marriage. Eighteen months later we married and Claire became my beautiful wife. In bed she was adventurous and would try anything and everything except anal sex. We had screwed indoors, outdoors and in all sorts of places and every position you could think of. Then she started to asked me about sex with my previous partners. I told her how I lost my cherry to my landlady and of a few of my other conquests. She seemed to constantly want to know more. Then she came out with it, she had never been with anyone else and hadn't even seen another penis and wondered what it would be like. Eventually she decided that she would like to swing with another couple, but just a soft swing, no penetrative sex. Groping and oral was the limit. I agreed and I bought a magazine and we started looking at the adverts to see if we could find a suitable couple. No internet in those days. Well Claire was fascinated with some of the photos in the magazine with couples and a lot more men showing their all. Then we found a couple that sounded right for us, not too pushy and they were a twenty minute drive away. Claire rang the number and spoke with Clive and Sue. They seemed nice and when Claire told them our boundaries they seemed quite ok with that. Claire arranged a meet on neutral ground, a pub about half way between us. A week later we met up. Clive was 6' 0" tall slim and clean shaven. Nothing special to look at. I instantly didn't like him, he seemed slimy ans said everything to impress my wife. Sue was 5' 6" tall, long dark hair quite shapely, but with a huge bust. Unlike Clive she didn't seem to be very outgoing and was quite quiet unless spoke to. She wasn't bad looking and was well within the range of girls/women I had previously been with. Claire made quite clear to them that it would be just a soft swing. Clive was quick to agree. Back home Claire asked me what I thought. I told her that Sue was quite nice and left it like that. Claire was quite taken with Clive, so I went along with a meeting. A fortnight later we met at their house. Sue quickly took our coats and provided us with glasses of wine. We sat on two sofas Sue and I on one and Clive and Claire on the other. Clive was a bit of a gadget man and turned some soft music on in the background and dimmed the lights. He was quick in leaning in and kissing Claire. I followed suit and kissed Sue. She was quick in responding and we had a very good kiss with tongues snaking around each others. Then I heard Claire telling Clive no. I looked up to see what was happening. He was trying to get Claire to go to another room. We had agreed with each other and them that it would be the same room only. He saw me looking at him and backed off and went back to kissing with Claire. I was getting to like Clive less. She reengaged with me in another kiss. The next time we broke off from our kiss, I see that Clive had Claire's tits out of her blouse and bra. He was fondling them and taking a quick glance at me, took one of Claire's nipples into his mouth. She seemed ok with it so I turned my attention back to Sue and worked on getting her tits out. They were huge, for a fairly slim woman a pair of 38D tits looked massive against the rest of her. I was enjoying sucking her nipples when I hears rustling from the direction of the other sofa. I took a look and Clive had his cock out and had Claire wanking it. I was pleased to see that it was no bigger than mine. I went back to Sue's tits. I had slipped a hand up Sue's skirt and was stroking Sues pussy through her panties as I continued to suck her tits. Then I heard Clair gasp and I quickly took a look. Clive had his hand not only up Claire's skirt, but was also in her panties fingering her pussy. Again Claire didn't seem worried so I again went back to those tits. After a while there was more movement from the other sofa and I took another look. Claire was now sucking Clive's cock as he finger fucked her fanny. Sue seeing me watching them took my cock out and started wanking me and pulled my face back into her tits. I was still stroking her through her panties, so I decided to move on and hooked them to one side and slipped two fingers into her pussy. We seemed to be one or two step behind them at each stage. We were like this for some while until I heard sue and Clive moving and when I took a look Sue was on her back and Clive was on top of her in the 69 position. I suddenly felt quite jealous and if it wasn't for Sue pulling my face back into her tits i think I would have stopped everything. Sue now took the initiative and we ended up also in the 69 position, but with her on top. Her pussy was very wet and I was enjoying sucking her fanny. The fact that both women were moaning gave extra enjoyment to me. Then I could hear Claire getting noisier with her moaning as she does just before she comes. With Sue on top I was unable to see Claire as she was clearly reaching her orgasm. Then the gasps and groan told me she had reached her climax. I could hear rustling and movement, but still couldn't see them. Things from them went quiet for a few moments. "Arrrrg, Oh no stop," I heard Clair gasp. By the time I had pushed Sue off me, it was too late. Clive had driven his cock deep into Claire's pussy. It didn't matter whatever I did you can never undo what has been done. I knew he was a slimy bastard. He was now pumping away at Claire's pussy. I was annoyed, angry and jealous all at the same time. Claire's sweet pussy that only I had ever penetrated was being seriously fucked by Clive. I wanted revenge. Sue was tugging at me to pay her some more attention. I would get revenge. I turned Sue into the doggy position and pulled her panties down to her knees and got behind her. She seemed pleased that she was about to get fucked. I rubbed my cock up and down her crack a few times and then buried it deep in her fanny. Sue groaned at the sudden penetration, but was quickly pushing back to enable the deepest penetration possible. Clive was watching me plowing his wife with a cheesy grin on his face. Claire was constantly groaning as he pumped away at my wife's pussy. Then I heard it starting, The moans and groans from Clair that told me she was climbing to the summit of another climax. Clive looked triumphant as he slammed in and out and Clair reached the peak and groaned her way through the orgasm. Clive was now doing jerky little stabs at Claire's pussy. The bastard, he had just come in my wife's unprotected pussy. Then he rolled off looking Like a lion that had just captured it's prey, the smug bastard. It was then that I decided what I would do. Sue was moaning loudly and obviously on the buildup to her climax, but I was quite some way off. So I slipped out of her pussy and took aim and with one stab penetrated Sue's with just over half of my cock. She let out a large squeal. I held on tight to her arse and with drew slightly and took another run at her this time planting all but the last inch in her arse. A third stab and I was fully home and Sue was moaning non stop. I released my grip on her hips and reached round and fingered her pussy. Sue stayed still as I slammed her arse over and over again. Then without warning she came and fer pussy gushed her juices all over my hand and down her legs. I was still relentless in slamming her arse. I was at this point that Clive had moved enough to realize that it wasn't his wife's pussy that was getting the pounding. "Mate, she doesn't like it in her arse, it wasn't what you were meant to do," he had the nerve to tell me. By this time Sue had collapsed and was laying flat on the sofa and I was astride her still hammering her arse as she whimpered. Claire was also watching as I pounded on. "Please mate, can you stop that?" he asked. "Like you agreed to just a soft swing," I reminded him. Then I could feel my cum beginning it's trip and quickly pulled out of Sues arse and rolled her over. I forced my cock into her mouth just in time to blow my load into her mouth. As I finished coming and I was taking my cock from Sues mouth and could see that she was probably going to spit the lot out, so I held her mouth closed and tickled her. the tickling gave the right reaction and she swallowed the load. Very shortly we were dressed and left. On the ride home Claire was very apologetic saying she had no intention of going that far, but Clive seized the moment after she came and before she had regained her composure to penetrate her. I told her that I wasn't angry with her, I was angry with Clive and Sue as I thought it was their intention all along to have full penetrative sex. I told Claire that I had never penetrated anyone's anus before, but decided to fuck Sue's because Clive cheated. Claire asked had I enjoyed it. I admitted that if the circumstances were different then I would have because the actual sensation in her arse was nice. Then Claire went to sleep the rest of the way home. Once in doors we showered and after drying each other we made soft sensual love to each other. The next day Claire told me that she would like to try again, including full sex with another couple , but we would have to be more careful in who we swung with. Fortunately Claire's period came as I normally did. We became seasoned swingers over the next 5 to 6 years regardless of our first bad experience.