Moving on

When my wife died in a tornado, I was left to bring up our 2 children alone at first. But help soon came in the form of my mother-in-law (MIL). I was 31 and the children 5 and 3, so her help was most welcomed. She was 51 widowed of 3 years and so she sold up everything to come and help us. Over the next few months, we became a close family unit, I had a great career and earned good wages. With my MIL looking after the children, I was able to progress my career. Holidays were great family fun times; I didn't date other women as my loss to recent in my mind. But I did get horny and masturbated to get some relief. Then one night the children were in their beds, I was in my room and started to masturbate myself. I thought MIL was in her room and hadn't really thought about her whereabouts. As it turned out she was catching up on the ironing and when she was finished, seeing the light under my door came in with my ironed clothes. She had seen me reading in bed many times before and had thought I was just reading, she caught me masturbating myself. It was a shock to us both, she put down my clothes and turned to leave. I babbled something about stress and not doing that well at masturbating, hoping she would think it was rare occurrence for me to masturbate myself. Instead, she offered to assist me and that was another bit of a shock to me. But I nodded my approval and thinking if she was involved it would be our secret. After playing with my fast-recovering cock for a bit she suggested we try something else. I again nodded my approval and she started to suck my cock and I came in her mouth without telling her first I was about to come. She swallowed it all and kept playing with my cock and I was soon hard again. This time I asked her to allow me to fuck her and she agreed, she and I showering together afterwards and then slept together the rest of the night. She moved into my bedroom after that, we've become regular lovers and she told I should find a younger woman. But also says she will keep allowing me to fuck her anytime I want. So, unless I find the perfect woman, I'll keep what I have now. Plenty of sex and no hassles with anything.