My wife and I had gone for a walk along the river and had come to a pub. We had a couple of drinks and then started the long walk back. My wife walks much quicker than I can and often goes on ahead. Today was no different and she disappeared from sight. I expected to meet her in the car. She had my spare set of keys and would usually wait for me listening to the radio. As I got closer I could see several men milling around. Then I discovered it was my car that they were surrounding. There in the front seat was my wife as I had expected, But I didn't expect to see her with a cock in her mouth and several more being wanked in front of her. I was about to go steaming in and sort the lot of them out, when the man in her mouth came. My wife swallowed it. She never swallows!!! I was shocked and unable to move. "Who's next," I heard her ask. Somebody stepped up and replaced the first man and thrust a large looking cock into her mouth. She started sucking better than a Dyson. The man next to me said, "This dirt slut didn't realize this is a dogging site, she does now," he laughed, "I can't wait for my turn, your after me." I thought, good god this man is allocating me a place in the queue to get a blow job from my own wife. Then he went on, "She was getting in her car when Ron flopped his cock out in front of her and told her to get sucking," she started telling him she was waiting for her old man, when Ron just pushed it into her mouth. She took to it like a duck to water." He went on, "After Ron our Steve just pushed his cock in her mouth and fucked her mouth till he cum. Then James had a go and you can see Tony is about to cum. I want to cum on those tits." I must admit my cock was throbbing even though I was shocked at seeing my wife sucking another mans cock. She was a virgin when we married and as far as I know she has never seen another cock let alone suck one. Tony suddenly cum and the man in front of me stuck his cock in her mouth and started fucking her face quite hard. He turned to me and said, " She is one dirty cock sucker, you're like this," he said as he fucked my wife's mouth and throat. It was obvious that he was close to cumming and opened my wife's blouse and pulled her tits out of her bra, The he pulled out of her mouth and shot one string in her mouth the second on her face and then two or three all over her tits. As he staggered out the way he said, "Your turn mate. She's a fucking good slut." My wife looked up at me and my cock sticking straight out at her. She bent her head and sucked it into her mouth. I was so worked up I shot my bolt almost immediately. "can we go home now?" she asked me. I helped her into the car and closed the door. The man who was talking to me suddenly realized that she was my wife as I went to get in the drivers seat. "Fuck me mate is that your wife?" he asked. I nodded. "She's one dirty slut and a fucking good cock sucker. Can we fuck her next time? I just got in and drove home, Once in doors she was very apologetic telling me that the first one was in her mouth before she realized what he was about to do. Then as others came forward it didn't seem so bad after the first one and then she got excited and enjoyed it. I told her that once I got over the shock, I enjoyed it and especially that she had let me cum in her mouth and swallowed. Seeing that I wasn't angry, she dragged me to bed and we had the best sex ever. Then as we lay quietly cuddling, she asked," did you hear what the man said as we were leaving . I asked did she mean about next time and fucking her. She said, " Yes and can we." "What go again or let them fuck you?" I asked. "Both. Pleeeese," She asked. I just asked her when.