I had managed to wangle an invitation to Keith and Lyn's' Daughters wedding. At least to the evening celebration. Strange really, going to the reception of a couple you only know through a swinging website, but we had become good friends and chatted often about stuff other than sex and met socially as a threesome. But I wouldn't know anybody else and was wondering how to answer potential questions about "how I knew the bride or groom". Although easy at social gatherings and able to hold conversation with anyone, my only reason for going was so I could have Lyn again. Following our threesome, where Keith watched on as I satisfied his wife, we had met on our own, and I wasn't even sure if he knew. Of course they were both aware I was coming for the evening, but I made a point of leaving it as late as I dare, to ensure the proceedings were in full swing and most folk too far gone on the free bar to be too inquisitive. It was Keith I saw first and made a beeline for him. He broke off from conversation with the couple he was with, and we moved outside and he filled me in on how well the ceremony had gone and how lovely Lyn looked. He said she was pleased I was coming but as they were staying at the daughters house it was unlikely we could all get to play on this occasion. I tried not to look too disappointed but told him not to worry as it was always good to see them. Some other guests were hovering to speak to Keith so he told me Lyn was inside and should go and try an find her. I was right, Lyn looked amazing. In a white dress with blue floral print, knowing I was to join them I suspected the underwear would also be alluring. Her hair and make up were immaculate and as ladies do, had taken the opportunity of her daughters wedding to attend to all her treatments and smelled fantastic as always. I had got used to her perfume and if I was ever on the underground or somewhere I smelled it on another woman, it would transport me back to that first night we all shrewd together and exploring her voluptuous body. I caught her eye but stood off, waiting for her to find an excuse to leave the crowd she was talking to and she came over and kissed me politely, as you would a relative or old friend. We mad small talk about the day and she was clearly relaxed and had enjoyed a glass or three of something and then, having checked nobody was watching us, took my hand and led me out of the immediate venue and around the outside of the building. She was walking quickly, grasping my hand and looked back to check nobody else was around. She stopped, turned and faced me and kissed me full on the lips. I held her face and kissed her back and pulled her into me and let my tongue explore her mouth. We kissed for a few minutes more and she moved her hand to feel that my cock had responded and was already firm through my trousers. She whispered in my ear there was a room the venue had made available for the bride to change for the evening and she had made sure she had the only key. It was a room the night manager used and as we entered it was a mess. The small bed covered with coats and clothes, which Lyn swept aside, pushing them onto the floor and throwing herself on to her back on the bed. I lay on her and we resumed kissing. She was pure sex, her smell, look and passion she showed for me and she was already trying to get my belt undone and zip down to access my cock. I stood no stripped and lay beside her. She went down on me and took my full length in her mouth. Lyn gives amazing blow jobs, the very best I have ever had. I had abstained for several days and didn't want to cum too soon so having been playing with her magnificent tits through her dress side her to strip. The dress was unzipped and fell the the floor. She wore white stockings and suspended, white balcony bra and lace panties. I wanted to take a picture but didn't want to spoil her desire to have me. She sat beside me and we kissed again. I fondled her breasts and unclimbed the fastener. She told me she had imaging me doing this when she bought it for the occasion. This lady was really in to me. I released her tits and sucked on each nipple in turn, which drove her wild. She flopped back on the bed and raised her bum to slip her panties off and discarded them. I knelt down and kissed her belly and massaged her body. She was rubbing the outside of her slit and I knew my teasing was getting her so worked up. Eventually she opened her pussy lips and told me to get my .tongue inside her. I obliged, but slowly, still teasing and going a slower pace than she would like. Her body was thrashing and I knew her first orgasm was close. I flicked my tongue as fast as I could over her clit and she screamed out, digging her nails into my back and then forcing me head deeper into her. I moved onto the bed and between her legs and positioned my cock at her open cunt. I used the wetness from her pussy to lubricate the tip and slid it easily in half way. I have a much bigger cock than her husband, which she loves, but I always have to be gentle as she is very tight. It was no problem with her being so randy and already cum and I was soon in up to my balls and finding a rhythm that suited us both and shot my load deep inside her. We kissed more with my throbbing cock still ejaculating inside her and then cuddled and also St fell asleep. It wasn't a long session but an amazing orgasm for us both and was now actually very tender. After what must have been only 10 minutes and I think she actually fell asleep, with my cock still inside her, we moved apart, off the bed and started to think about getting back to the party. I made my excuses that it could be awkward if they had to explain my presence to anyone and she could well look flushed and embarrassed if quizzed. She does embarrass easy bless her. So I left and she returned to her guests. I still don't know if Keith is aware of our solo sessions but would like to think he was able to enjoy her that evening and might guess I had already had the Mother of the Bride.