Mother-in-law

My mother-in-law (mil) 54 moved in with me after the death my wife and her husband in the same accident. A truck's load slipped of the tray of truck and crushed my father-in-law's car, killing both instantly. We were all in shock for some time and as I'd 2 young children (5 & 7) my mil came to live with us. Two years later (2023) and my children were away with my parents, it was just me and my mil. We'd nothing planned and I was working from home most of the time since the pandemic 3 years earlier. My mil a very good-looking woman didn't date and neither did I. I finished my required work and as I watched my mil moving about tidying up and I got aroused. I'm not backward in asking for anything I want and made few remarks about how gorgeous she looked, and she said I must need glasses. I responded by saying join me in my bed and I'll prove to you how much I like your looks. She was a little shocked at my response but said nothing straight away. Then after few minutes said to me if I was really that desperate for sex, she will agree to give me some sexual relief. We had sex and I really enjoyed it, and so did she and we slept together every night till the children returned. But we still fuck every chance we get, if the children are at school or over a friend's place or are asleep. We have sex. It's a mutual satisfaction arrangement not a relationship. Had a small addition made to my house a jack and jill bathroom added and connecting her and my room.