My mother-in-law Janet is 50 with the body of a 30 year old. She has a 36dd bust, nice shapely legs and a really cute derriere. I have had sex with my mother-in-law a couple of times that was exciting for both of us.
It all started when we went out for family nights out and gatherings, she would always flirt and tease me by saying I was the best son-in-law she had and how her daughter was the luckiest woman alive, you know the stuff ego's are made of. She would always dance with me and make sure there was some kind of sex talk whilst dancing. To be honest I hadn't really thought of her sexually until recently when her car was broken and had to rely on people in the family to take her places, of course I never gave it a second thought for taking her places when I was available. The first time it happened I had taken her to a meeting about 30 miles away from where she lives and waited in the car for her. About an hour or so later she came out of the meeting and we were driving home when I noticed that her skirt had ridden up and was showing what I thought were stockings.
Janet was wearing a skirt suit with a white blouse that was un-buttoned at the top. The chat had weirdly turned to a more adult chat, how her and her husband were doing relationship wise. Janet told me that she suspected her fella was cheating on her (my wife had told me that he was cheating on her as he had been seen) so I didn't know what to say to her other than say I couldn't believe it if he was while trying to console her.
Janet started to get very upset so I found a pub and we stopped off for a drink to calm her down. Once inside Janet broke down in tears and I sat beside her and held her. The pub was not busy so I wasn't bothered that she was upset. I had my arm around her and she had her head on my shoulder and she had hold of my hand. After the tears had stopped we had a really good chat about things and she started to tell me about my wife and how she knew something about her but didn't want to say.
So I pleaded with her to tell me and she eventually came out with, my wife had cheated on me as one of her friends had seen her with another man (this man I actually knew, as we often have 3sums with him and I wasn't about to tell Janet that) I pretended to be shocked and Janet told me that her daughter was lucky to have me and how could she do that to me. Janet started to rub my leg and try to console me even though I wasn't bothered, a bit annoyed that my wife had been seen and what people were thinking of her even though that's how we live, but anyway that's another story.