Why Not

I'm Mark 27 only child and work as a mechanic and live at home with mother Glenda 48 divorced. My father left 5 years ago and they were divorced the following year, Glenda hasn't dated anyone since my father left. I'm not great with dating girls and haven't had much success, I'm no virgin. Losing my virginity to Karen 64 who also works at the same place as me 3 years ago, Karen then met Martin 67 the new owner of the business and now fucks him after he bought the business. I'm usually home most weekends and get randy and while reading stories on this website, I decided to ask Glenda for sex. She was shocked at my request for sex with her, I said we love each other and nobody else need know. She said we can't and I asked why not, her reply was I'm your mother that's why. That's no reason, you can't get pregnant and that is the only thing that people say is why you shouldn't fuck relatives. She went quiet for sometime and I got tired of waiting and undressed in front of her. She was shocked at first, but she finally agreed to try it just once. I was excited and knew I had to please her or the first would the last. So I got her to shower with and I fondled her and massaged her pussy. I went down on her and licked and sucked her pussy, till she started shaking. Then I dried her and took her to her bed and after some pussy licking I mounted her. We stayed together that whole night and every night since. But she wants me to find a wife, as she wants grandchildren. But she doesn't reject me when I want sex with her.