I slept with my MIL

My wife's mother has been widowed for a few years now. My wife has had a BF for going on a year now. I've been looking for a fuck/suck buddy but so far haven't found anyone. So the other day, we all had a family get together. I drove separate of my wife due to me coming home from work. Wife's brother asked if I could give the MIL a ride home and of course I obliged. On the way home, she asked me about the situation with the wife. My wife doesn't hide the fact that she has a boyfriend. I asked what she wanted to know. She asked if we were having sex still. Keep in mind, that her family is open about sex talk. I told her that she and I hadn't had sex in a few months due to work schedules and her having sex with her BF. She said, "So I guess you take care of yourself?" I said, "Sometimes. Mostly I just go home, get something to eat and then crash." She said, "I haven't had sex in years."

There was silence for a while. Then we pulled up to her house. She said, "You know...You could come in and we could solve both our problems." I said, "Are you suggesting..." She said, "Yes. We'd have to keep it to ourselves though. Jenny may not like the idea if she knew." So I went in with her and we had sex.