Great Fun turns to marriage

I was 26 when I started fucking a work colleague then 44 and divorced. We had great sex regularly and it was just for our mutual satisfaction. I got promoted and still kept up the relationship, why not it was great sex and no hassles at all. I still dated and hadn't found a permanent girlfriend. But after a while I started wanting to start a family as my siblings had, feeling somewhat empty when at family gatherings and looking at my nieces and nephews. My sex partner has a daughter (only child) who was very quiet and timid especially around men. She was 25 at the I got clucky you could as that what they say about women wanting children and I was then 32 and I had been regularly fucking her mother for over 5 years. I mentioned to my now mother-in-law, that I was thinking of finding a wife to start a family. It was her who suggested her daughter, saying that is the only way she might become a grandmother is the get her daughter married. But I was the only male her daughter even spoke too, which didn't bode well for her marrying anyone other than me. I like the daughter but hadn't thought of her sexually, mainly because she was so quiet. Now the idea of marrying her was in my mind, I started looking at her as a possible wife and mother of my children. She ticked all the boxes as they say, I decided to at least try. Having her mother helping was a big bonus and after several threesomes (dates not sex) we became engaged still no sex. I was still fucking her mother and shared a motel room with them both at a family wedding they were attending and fucked the mother in the same bed as the daughter. We finally married and that was the first time I got to fuck my wife. She didn't mind her mother getting fucked by her new husband either. My wife doesn't take any precautions at all and soon got pregnant and I very happy with my married life and now at 45 and 5 children and great wife and still fucking my willing mother-in-law. My wife prefers to be a housewife and mother and her mother is my PA and go with me on all my business trips. I'm doing very well in my career and have the perfect family to my mind.