Hi, they call me Jim and this happened when I was thirty seven, not long after my divorce. I met Jane in a bar and we got talking. She was much the same age as me and a bit of a looker. I could see she was married by her wedding ring and I still flirted with her, and she in turn flirted right back. I didn't expected it to go anywhere and asked if I could take her home. I expected to be told to park away from the house so hubby didn't see us, but instead she told me to park right outside. I thought I would try my luck and went in for a kiss. She stopped me saying, "If you want that you had better come inside." I thought while hubby's away and followed her inside. I was stunned to see what I suspected was her husband and was ready to do a runner. He was sat watching television. Jane turned to me and said, "Don't worry about him." Then she inquired if he was ok and when he replied yes she told him to go brush his teeth and go to bed as it was getting late. He got up and wandered off towards the bathroom. I asked Jane what the hell was going on. She informed me that her husband had "Early Onset Dementia" and would have forgotten that I was even there in an hour or two. I must say I felt more than a little guilty even thinking about fucking his wife. Jane was soon on me kissing me and touching my cock through my trousers. I couldn't help myself and I was soon kissing back and fondling her tits and her pussy through her panties. "Let's get more comfortable," Jane suggested leading me up the stairs. She poked her head into the first door and asked if he had been to toilet and cleaned his teeth. He said yes and she went in and tucked him in and gave him a kiss, like a mother would and then turned out the light and closed his door. We were soon in the main bedroom kissing as we ripped each others clothes off. I soon had Jane naked and on the bed. I was between her legs sucking her long pussy lips into my mouth. Then when I raked her clitoris with my tongue she started to moan and they got louder and louder the more I licked. I had just come up for air and to climb up and mount her when out of the corner of my eye I spotted movement. Her husband had come into her bedroom and was stood there watching. Jane noticed that I was looking at him and told me to forget about David and hurry up and fuck her. I had all sorts of emotions flowing through me, not least a cock that was screaming at me to get on and fuck her. Jane pulled me into place and steered my cock to her pussy. I was going through the motions, but I couldn't enjoy it. Jane was by her moans and groans, and that she was humping back at my cock. When it was over Jane walked him back to his own room and tucked him in like a child that wanders into it's parents bedroom the night. We made love again and this time with no disturbances. I did enjoyed it. Over the coming months Jane and I spent more time in bed. It still felt pretty strange when we ended up with an audience. David would just stand there and watch. I once talked to him about twenty minutes after we had fucked and David had no recollection of what had happened twenty minutes back. I asked him about Jane seeing other men and all I could get was what men! I was pretty sure I wasn't the only one seeing Jane, but had no way of proving it as David was no help. Jane wanted me to move in with her or her move in with me. Because I had worries, firstly about David and secondly that Jane may not be faithful to me I kept putting her off. Eventually I found some proof, a condom tucked under the bed. As I had never used a condom with Jane and David was not capable I knew my fears were correct. I enjoyed my time with Jane, but wasn't prepared to get into a relationship where I was being cuckolded by my woman, so we kept things on a casual basis. Then poor David was taken into care. Jane went wild and was shagging anyone and everyone. That was my reason to jump ship.