Riding my old Neighbor's cock

I lost my job due to the store closing down and without an income I wouldn't have enough to pay my rent. Over the 2 years I lived at the rental property. I got friendly with Andrew 65 retired and I would talk with him for hours sometimes. I'm Brenda 45 divorced and 1 child grown up and in the navy. Andrew is single, unattached or divorced I don't know and he hasn't said. Shortly after losing my job, Andrew gave me work cleaning and cooking for him. But it wasn't going to be enough for me to keep my place. So he told me to move in with and save the rent money for a rainy day. So I did, I moved into to his spare room. After some time living with Andrew I walked in on him in the bathroom and he was masturbating himself. I was a little shocked at first, but I was even more shocked by the size of his cock. It was at least a foot long and I wouldn't have gotten my hand around it. He said sorry I should have locked the door, I replied no problem and I couldn't take my eyes off his cock. Before I knew what I said I asked did want a hand and he said if you want you can help me. On realizing what I said I decide I might as well now I had offered. As I stroked his cock the horny I got and not having got him off, suggested we go to his bed and fuck. He was a bit reluctant at first, but soon agreed and we have been fucking ever since. I just got a new job last week and am still staying with Andrew and sleeping in the same bed. We aren't in a relationship, it is just the sex.