Drunk Mother

My father divorced my mother 38 without any notice before hand. She was totally shocked and started drinking, I'm their only child and wasn't on my father's radar as they say. Not mentioned by him in the divorce proceedings. My mother got the house and alimony but only got the house really as my moved overseas and doesn't pay the alimony. After the divorce was final my mother drank herself unconscious most days. I then 17 would come home from my job and find her passed out. Not doing great with girls and my sexual needs increasing, I started fucking my mother. She was usually awake, but not with it either, at my age sex came first. Taking precautions never entered my mind, so my mother got pregnant. Fortunately, my luck was in I bought lottery tickets hoping to get rich, just after she found out she was pregnant. My numbers came up, I was still underage and unable to collect the prize myself. But as when I bought any tickets, I said they was for my mother, so she collected the prize. Now setup for life my mother had stopped drinking mainly because she was pregnant. Now always sober on my getting home, she decided I was the best thing in her whole life. So, I slept with her ever since, first having a healthily daughter and recently a healthily son. But with his birth she had major problems and isn't able to have any more children. I turned 20 just before his birth, my mother wants grandchildren also and is pushing me to find a wife. But sex will be still available from her once she has recovered. After the lottery win, she sold the house, and we moved away not leaving any forwarding address, just in case my father decides to come back.