My wife and I have been swingers for many years and she has had so many men in her I have lost count. I also have had many married ladies in front of my wife. We have no issue at all with each other having sex with other people and we love both separate room and same room full swapping. My wife has squeezed my balls to help me cum up another lady's cunt and I have held her cunt open for men to put their cocks up her. I have often watched her being fucked by a man while sucking off a cock and even wanking a third sometimes. The fact that we are in our 50's with a very good standard of living with her having a 'cut-glass' accent and normally wearing business suits sohws how different our normal lifestyle is to our swinging lifestyle. Like most people we started having soft swinging fun with men touching her tits in a sex club (she is 36C-24-34, size 10) and have now progressed to her having full sex with ten men at one party recently (mostly in MFM format but also MMFM). The majority of cum on her tits and face in the last ten years has not been mine. We have many experiances but I shall recount a recent one in our home whwre we invisted a couple we have been having sex with for about six years. The couple arrived for the weekend and we showed them up to their bedroom before having a meal in our local town. When we returned we men undressed and the ladies went upstairs to change - as we are good friends there is no need for formalities, just sex. My wife S emerged in a seethrough top, PVC basque and stockings under a short skirt and the other lady, M, in a short dress very low cut and with pull up stockings. My wife immediately sat with our friend C and they bagan to kisss while she stroked his cock whlist M and I sat and had a drink of wine as we both enjoy watching our partners. C put his hand up my wife's skirt and she willingly opened her legs for him and let him stroke her cunt. M was slowly wanking me while I watched and we enjoyed the wine. C opened up her top to expose her tits and lovingly sucked each one before she stripped off her top so he could really get to them. At this poiint M got down and started to suck my cock as I put my hand down her dress and played with her tits. C then sat back and my wife pulled down her skirt and looking at me put her cunt in front of his face for him to suck it. M asked for the same so I sucked her cunt while she stood in front of me and watched her husband sucking my wife's cunt. M came in my mouth and my wife also came in C's mouth. The women then lay side by side and we got on top fucking them. They played with each other's tits and we caried on fucking until we both came up their cunts. We then changed places and sucked our own wife's cunt as we both enjoy cum taste in there. The ladies then got on top of one another and kissed each other for ages whilst we had a glass of wine. They got into a 69 and sucked the remaining cum from each other's cunts. After a while we got my wife on her back and M got out her rabbit dildo and pushed it up my wife. C and myself went either side so my wife could suck and wank both of us. I cam on her tits again but C came in her mouth. M carried on wanking my wife until she also had an orgasm and then she went upstairs, returning with her strap-on. M lay down and my wife fucked her with it for about 20 minutes. As this is a bi-foursome friendship I took the opportunity to go down on C and suck his cock. My wife wanked me while doing this as a sign she was OK with this. After a while C went down on me whilst I sucked M's tits. We had a break for drinks and my wife told them she had been using the strap-on in me for a whlie and C and M asked if they could see a demonstration. I got on all fours and my wife got behind and pushed the dildo in me. As I had enjoyed so much sex that night I was totally relaxed and it slipped all the way in - she fucked me gently and the others watched. Then C got down and started sucking me off while his wife sucked my wife's tits. He then said he would like a go and so he got on all fours, my wife got some lubrication and slowly pushed it up him whilst his wife wanked at the sight of my wife fucking her husband. I reached round and wanked him and pushed my wife into him as hard and as deep as possible. He loved it. Then came a first. My wife asked me if I wanted a go and I said "Yes" so she pulled out of him took off her strap-on and sat next to me guiding my cock into him. As it was the first she said she wanted to put it in and as his wife opened up his arse cheeks my wife guided my cock into him. I pushed all the way in then fucked him. Our wives just watched as the husbands fucked on the carpet in front of them. We changed places and I let him fuck me in front of my wife. She wanked herslf off watching a large cock fucking me while M decided it would be nice to suck my cock, saying it was OK to cum in her mouth if I wanted to. I had little cum left but duly obliged and she then shared my cum with my wife in a loving kiss whil I satill was being fucked - then C's last drops of cum went in me. This was the first time we had done this but have agreed we will do it again if the moment takes us. As it was a night for firsts we also decided that we would sleep with each other's wife ( we normally have sex and then sleep with our own wife). I went to bed with M and my wife went into our bed with C. In the morning I took them some tea and found them passionately kissing, naked. We left them in bed and they arose a couple of hours later saying they had been fucking and then had a shower togther. That night we also had sex as a foursome but this time only the ladies had bisexual sex usaing their dildo's on each other - we fucked each other's wife again a couple of times and gave each lady a threesome so that they could enjoy being spit roasted, taking turns to fuck or be sucked. In these meeting each wife belongs as much to one man as the other and each wife has no problem about the men paasionately kissing, fondling, fucking at whatever time - on previous occasions I have fucked M while my wife and C have stayed downstairs and my wife has had 3sums with them at their house when I have ben away on business - she has even had a 3sum with them and a male friend of their who they invited for a foursome as I was not available - to my wife's delight he was a 35 year old stud with a very thick cock which she said she helped M drain. We are currently arranging another first. As both women love cock we are arnaging an evening where four young men are invited to fuck them to their hearts content so that they will each taste four cocks and have four in them. When the men have finished C and myself intend to fuck our own wife last after fucking the other so that they will both get six cocks in them in one evening. They are both looking forward to this especially as C and I will be sucking each other off while we watch.