Mother's help

My father died in a single-vehicle road accident after his funeral. My mother's financial situation was bleak. She (52) paid off the loans by selling the family home, leaving her with almost nothing. With no work skills for any good-paying jobs, I (33) took her in. I'm paying off my own home and don't date mainly because I rarely have any success. My mother kept house for me, cleaning, cooking, and washing. One weekend, she caught me masturbating and took over getting me off. That started her masturbating thereafter; each time we went a little further. Finally, last Christmas, we became lovers, and now she sleeps with me every night. She missed sex with my late father, and fucking her son was close enough to her former sex life to keep continuing.