Owning my Aunt

I'm George youngest of 2 and I still at home, I didn't continue after finishing High School. Not interested in doing more school, I trained as plumber and now fully qualified work for a large plumbing firm. My father's older brother Patrick married to Rebecca 50 known as Becky have 2 grown children who have left home. Patrick is a know all and very annoying at family parties, Becky is quiet and under the thumb according to my mother. If Patrick starts to get angry I've seen Becky shaking, I realized Patrick was aggressive towards Becky and felt sorry for her. Anyway at 22 I'm not great with women and rarely date and even more rarely have sex. I work and stay home if not working, my friends all have girlfriends and so I don't go out much now. Then one day I saw Becky's car it was damaged, someone had hit it and didn't hang around to see Becky. Shortly after Becky returned and was distressed at the damage and scare to tell Patrick. My friend Arnold repairs cars and he owed me a big favor, so I got him to fix the damage and I paid him for parts. Lucky Patrick was out of town for a few days, Becky got her car back the morning of the day he retuned. Becky was grateful I got it repaired quickly for her and promised to pay me back. But that was easier said than done, as she had to account for every cent she spent. I wasn't worried as I liked Becky a great deal, better than I liked Patrick. Then Patrick went away playing golf on the long weekend, but before he left he told me he had a water leak. Meaning he wanted me to fix it, I went over checked out what I need and quickly repaired it. Becky was happy it got fixed and still wanted to pay me back for her car repairs. As I said I'm not great with women and when Becky gave me a cuddle, I got a hard-on. Which she saw, she isn't a center fold and only short at 5'4" but stacked. She already knew I didn't date much if at all, so she offered me sex as payment for the car repairs. I was a little shocked but accepted anyway. We had sex twice and I went back over next day hoping for more sex. She was happy to see me and we fucked again and again, I found that I could just ask her and she would agree. A bit like how her and Patrick got on, except Patrick wasn't as interested in sex that much anymore. I on the other hand was sex mad, especially after first fucking Becky. Patrick was happy the leak had been fixed and I've kept seeing Becky for sex. Patrick goes away and I visit Becky and fuck her, I just ask for sex and she lets me fuck her. When Patrick is home and Becky goes shopping I sometimes meet her for sex, I've always treat Becky better than Patrick. This has been going on for 13 months and I'm very willing to keep it going.