Our next door neighbors and my wife and I had been invited to another neighbors party. My wife was instantly enjoying herself chatting and drinking. I'm no so much of a party animal and had settled into a chair with a beer. I watched as our next door neighbors slowly got wasted Trevor was almost out of it and his wife Sue was getting excited and chatty. She came and sat with me and half of what she was chatting about meant nothing to me until suddenly she asked, "Do you think my tits are big enough?" I told her that with her clothes on it was hard to tell properly. Then she said in that case I had better take my clothes off.

It was obvious that she needed to go home before she did something she might regret in the morning. Trevor was in no condition to do it so I offered to take her home. As we walked up the street, with my arm around her to support her and keep her in a straight line, she took that to be something more than it was meant to be and slipped her hand straight down into my jeans. My cock quickly swelled to a full erection and she giggled saying that I was packing more than Trevor ever did.

I had intended to make sure she was comfortable on the sofa and just loosen anything that might hurt her and remove her shoes. It became obvious that Sue had other ideas and again asked me if her tits were big enough and even before I could answer her, she was ripping her own blouse off. Her bra followed nearly as quickly. She again asked was her tits big enough. I tried to make a joke and asked big enough for what? That was the wrong thing to say as Sue was on me and forcing her tits in my face. They were definitely big enough for that as my face was between the hills and trapped in the valley between as her hands held my head between them.

My cock was now pulsing hard with the excitement of being between a good sized pair of tits. (36D). Sue's hand was again back in my jeans while the other hand was trying to free my cock from it's constraints. I had know Sue and Trevor and lived next door to them for almost seven years. This was the first and only time she had ever shown any interest in me and I tried to put it down to the drink and ease her off of me. After all I didn't want to fall out with neighbors. I was amazed at just how strong Sue was.

She now had both hands concentrating on removing my jeans and without hurting her she was winning the battle. Then my cock was out in the open and Sue was quickly on her knees and sucking it into her mouth. Any resolve I may have had at fending her off was suddenly a thing of the past. I was now holding her head and one of her tits as I was thrusting in and out of her mouth. I was now having to push Sue off me not because I wasn't enjoying it, but if I didn't I would have come far to early.

Now it was my turn to remove Sue's clothes and removed her skirt and panties. Sue never seemed the type to me, but she had a pussy ring in each of her pussy lips. I was quickly between her legs licking and sucking on Sue's pussy rolling and pulling gently on the two rings. Sue was groaning and holding my head as I worked her pussy over. Then she was shaking as she had a small orgasm. As it subsided she gasped for me to fuck her.

It seemed strange that here I was in Sue's lounge with her totally naked and me fully dressed except my cock hanging out and about to penetrate my neighbor and friends wife. I was past having any fears or regrets, or even thoughts of my wife still at the party, as I plunged my cock into Sue's wet and willing pussy to the gasp she made as it penetrated her. Then we were throwing ourselves at one and other fucking like sex starved lovers. I didn't know if she was taking any protection but it was to late to worry about that as Sue came loudly with her body shaking and taking me with her. My cock was spraying string after string of cum in her pussy.

I was slumped over between Sue's tits enjoying the afterglow when a voice behind me told me well done. On turning around Trevor was stood there and as he walked towards us he again told me what a good job I had done. From his walk and his speech he was far from drunk and nor was Sue. I had been set up. My initial thought was that they intended to blackmail me. But then Sue dropped to her knees and started to suck my now limp cock. Trevor moved Sue so he could suck her pussy.

There was no blackmail and as Trevor sucked my cum from Sue's pussy it was obvious that they just loves sex and with other people. As soon as Sue had me hard again she moved and sat Trevor down and proceeded to suck his cock. She was right it wasn't as big as mine. With her bent forward like that, her arse was in the air and requiring some attention. I went to slip it back in her pussy, but Sue told me to use some of my cum and use her arse.

I did just that and fucked Sue's arse until I came in it. I had barely pulled out when Trevor replaced me and added a further load in Sue's arse hole. After a cooling off period Trevor showed me to the bathroom so I could clean up before returning to the party and my wife. Fortunately she hadn't even missed me.

In the next eight years that we live there Trevor invited me a further dozen or so times to share his wife. I never once screwed Sue just on her own, and it became clear that it was some sort of game they played. Whatever it was, I was just grateful and privileged that I was allowed to join them on those occasions. There was never any interaction between Trevor and I. It never seemed right for us to touch, but it did seem right for us both to share Sue's body as we did on those occasions.

I have never told anyone about this before and I am grateful that my wife never found out. Sue was the only women that I ever cheated with in our forty year marriage. I never regretted it but I am embarrassed that I failed to remain faithful to my wife. I think there will be many of you that will relate to both the embarrassment and the enjoyment.