Ex mother in law

So I was separated from my wife and we were trying to work things out. I followed her home one evening after she got off work to talk and visit with my young daughter. She had moved back home with her parents. I was on the living room floor while my 3 month daughter was playing or basically just laying there. She went to take a bubble bath bath and that i could put our daughter to sleep. My mother in law came and was talk from the door way cause her husband was an over the road truck driver, gone for weeks at a time. Talking about She understands why her daughter is lonely and inviting me over, with her husband being gone for weeks at a time. For some reason she stepped over me in her nightgown and I thought I caught a glimpse up her gown but blew it off until she stopped on her way back just short of stratteling my head. Thats when I was sure of the fact she did it on purpose and was not wearing any panties. She said it was ok, she knew I wanted to look and that I could touch it if I wanted to. Explanied how she had watched me and her daughter have sex when we were dating and always wanted to give me a try. I dont know why I did it but I reached my hand right up her thigh and used my thumb to split those lips apart, she was dripping wet. She proceeded to slide down and sit on my face and made a evening snack of her pussy with my tongue. She came on my face and reached back and put her hand down my shorts and grabbed my swollen cock and asked me want it in my mouth or between my legs. I played it cool and told her for her to decide what she wanted and she said well only 1 man has ever been inside me, which I knew was true. So she slipped straight down and my cock found that wet pussy like it had a bullseye on it. She road me hard until I said I was gonna cum and she stopped and said not yet. I want it from behind she had never tried it. So jumped up and bent her over the arm of the couch and beat up that pussy for another 5 minutes till she reached underneath her legs and grabbed my nuts and said now we cum together. It was outstanding, she stood up and kissed my cheek and said next time I want you to put it in my ass. 2 weeks later I fulfilled that off her bucket list for her. This went on for about 8 months, sometimes having sex with my now ex wife, sometimes sex with her mom doing everything her husband wouldnt do or try. It ended because her dad took a job driving where he was making day runs. It was about 4 years later that my ex wife said all those encounters were planned between her and her mom.