My cheating ex-wife Joan was not the only cheater in her family, her sister had the same or better looks and the same slutiness running through her veins and I was the one with whom she was cheating with.
Jackie was 13 years older that me and 14 older than her sister Joan, my ex wife. Jackie and I got along really good and in many respects we were more compatible than we were with our own spouses, We both like to play tennis, sun tan at the lake chilling, etc my ex Joan liked poetry, reading and sleeping. She was the typical librarian slut who people would say "Oh she is so nice, smart and quiet, maybe a little introverted," all this while she was fucking the whole football team just about.
Jackie on the other hand was a bubbly blue eyed blonde cheerleader type, extroverted, fun, talkative, a great tease and a fantastic fuck, but she was very sexually frustrated and she was very bitchy because of it.
Since before Joan and I got married, she knew I liked her older sister Jackie and she knew I wanted to fuck her really bad... I mean Jackie was 5'2" petite blonde with perfect D cup titties, beautiful blue eyed blonde with a nice bod, great legs and the ass was ok not the best but good enough to butt fuck anytime and she was always tanned.
As time went on, Jackie and I spent a lot of time together and she would tell me how she would lay in bed naked next to her husband Phillip and he would not even touch her... she was very vocal about it and very sexually frustrated with her sex life or lack thereof.
Almost every day we played tennis she would tell me how she tried to get on top of him, tried to give him head, get him to do something to her and he would always turned her down as his excuse was that he was too tired from work. This complaining went on for years and one day she told me her husband was out of town for a couple days and that I should come to her house to keep her company as her son was at his grandmothers house and Joan was working the night shift... so I went over to Jackie's house and she had just showered, she had a white bathrob on and we went down to her basement to watch a movie.
We had some drinks and we were just talking and then she asked me if I could rub her leg as the doctor had told her to have deep massages in her inner thighs and I thought to myself how I was going to do it without getting hard and maybe she would get pissed off at me or whatever as I was her brother in law married to her younger sister.
We sat down on the sofa and she handed me some lotion so I started rubbing her feet, calves, knees and then I started rubbing her inner thigh and all around the legs and she asked me to get lower and lower and as I was doing that, she opened more her bathrobe and then I looked down and she was wearing this white cotton bikini panties and I did not want to stare at her crotch so I kept going nonchalant as if nothing was happening but my dick was already hard.