Watching another chap kissing my wife on the sofa and sliding his hand up her skirt whilst a sat watching with his wife was new to me. After watching the couple having a great fuck in the woods and the surrounding wankers made her feel that she was ready for some swinging. More than that, with her new found self-image she was keen to try. What would sex with a stranger be like? And what would me watching be like? Now we were dipping our toes in it. The invitation came about as a result of a girls night out. One was evidently a swinger and so it was arranged we should go to a party. Before we went out we showered and took great care with our pants. Her 34D boobs were good but she decided a light lacy set would be good. Yes heels and stockings obviously. Short black skirt ? Too obvious. A red mini dress was chosen. Still it was delightfully short. The hosts were really kind and knew it was our first time. They explained the whole house was open and that you could just sit and talk or do anything with anyone in any numbers. There were about twenty of us from our thirties to sixties. It all looked very civilised. So it came that we were sitting on a settee with a couple in their late forties. Me with his wife and he with Julie. Facing Julie with her skirt well up over her thighs and watching Stephen kissing her and touching her thighs was exciting. My cock stiffened. Clare, next to me said, "Don't worry he's very aware. He won't go further than she is comfortable with. I put my arm round her shoulders. Clive's hand went further up Julie's legs. I could see his hand on her panties. Instinctively her thighs opened and, as she does, she started moaning gently. Clare's hand slipped on to my trousers and felt my hard mound. "You like seeing Clive with Julie." I did. Meanwhile their tongues were exploring mouths his hand was obviously into her pants working around her cunt, pubes and labia. I could imagine exactly what he could feel. "I think we're going upstairs", said Stephen. Julie nodded and I smiled re-assuringly. Clare gave me a nudge and indicated a corner where of the room two men standing with were in the throes of ecstasy as two women kneeling in front of them were giving head' I could see the back of a blonde's head moving up and down. The other person had short brown hair conveniently letting me see the man stuffing his cock into her mouth. "Do you like that sort of thing." said Clare. "Of course." "Lets find the others." Upstairs there were several bedrooms and subdued noises. The doors were all open and conveniently the hosts had put great wall or wardrobe mirrors so that from an open doorway you could see reflections of action going on in the rooms. I'd never seen anything like it. In the first there were four people. One couple lay on the bed - a woman in her forties riding a fit looking man of sixty. Over the side an a woman was bent over being stuffed hard by a chap with a muscular arse. It was fantastic seeing his action. It was enthusiastic and possibly bed destroying. In the next room a couple were sixty-nining. He was on his back under her cunt and she was wanking him gently. "Nice cock", said Clare. Yes, I thought. I wish somebody would service me. Round a corner in the doorway were a couple watching. They were so turned on that she was behind him reaching round to give him and wanking. Me too, I thought. Then I realised that I could see a shoe I recognised. It was Julie's. We slipped beside the couple Clare beside me. Stephen was kneeling naked on the bed beside Julie. She was lying there face upwards with her skirt up round her waist. She was below Clive's cock and balls and she was looking up at them whilst she worked on them with her hands. I felt Clare unzip me. Soon she had her hand inside my trousers teasing my rock hard cock through my pants. Stephen moved to lie on his back and Julie took him in her mouth. It was strange, but I loved seeing this stranger's cock slipping in and out of her red lips. "Lets go in". The chap in the doorway, obviously jealous of Stephen had now dropped his trousers and turned round so the woman was on her knees gulping at him. "Move over Stephen" said Clare and we sat on the edge of the bed watching. Clare's hand was wrapped around Clive's cock - a nice one - and her red nails flashed as her hand followed her mouth up and down. "Ride him", said Clare. "He'll love that." Clare removed her head . His cock was rigid. The head was blue and swollen and the vein up the side blue as it pumped blood into his erection. He lay on his back. This was the moment of truth. Clare slipped her dress of and lowered herself onto him. I watched as his head slipped into her. She looked excited as she lowered herself on to it feeling in enter her cunt. The head disappeared as she lowered herself onto him and started to ride, her breasts bouncing as she did so. Her nipples were taught and erect. I reached out to touch them. But by now my own cock was out and Clare was working at it her hands stroking the muscles sliding slowly up until she reached the head lingering over it and twisting her hand to give incredible pleasure. On the bed my wife as being fucked like mad. Stephen's arse was rising clear of the bed as she descended to meet him. I could imagine her muscles working on his cock to draw his spunk. "Fuck me now", said Clare. She pulled of her panties, removed her skirt and lay on her back, legs in the air. Standing I moved forwards and pushed my cock in easily as she was already soaking. She wound her legs around me and I drove in and started fucking slowly. "In or out?" asked Stephen for he was now moving uncontrollably and he was sure to cum soon. Knowing that my wife was about to receive another man's cum was so exciting - a real turn on. With a cry Stephen lifted high. His are muscles straining to pump his juice deep inside Julie. She lifted off him, his cum dripping out of her. Clare's legs tightened around me urging me to cum. Desperately, aroused and hungry to cum after what I had seen, I felt my cock tighten and my spunk released in to her. It was ages since I'd fucked anyone other than Julie but seeing her receiving another man's cock and receiving his sperm turned me on so much. I still see it all in my mind. Our sex is better for it and now we have decided to video ourselves and watch that. Perhaps occasionally.... "I'm on the pill".