Straight Lace Grandmother

I'm George 22 named after my late grandfather George. I'm not a great student, but do just enough to pass. Anyway last year I was visiting a friend's home and met his family and his grandmother Rebecca 59 widow. While I was alone at their home, my friend and his parents had to see an aunt in hospital in the next town. Rebecca was also at home as she wasn't related to the aunt and so didn't go. I was reading in my friend's room where I was sleeping while visiting him. Rebecca came in in a robe and asked would I do her a great favor, alright I answered not knowing what she wanted. She opened her robe and was totally naked underneath and said great I need a fucking. I was shocked and I got a hard-on also and I had agreed so we had sex. She was my first fuck and she fucked me again after and was going to have another go but the others arrived home. I had enjoyed the sex and would have gladly fucked Rebecca again if I got the chance. After arriving back home I kept thinking of the sex with Rebecca. I don't do well enough with the local girls to try to get one of them to fuck with me. But as Rebecca was a mature widow, I wondered if Dianne 60 my straight laced widowed grandmother was as horny as Rebecca. All she seem to do was her gardening and go to church and not much else. Anyway I got the chance to be around her as she was redoing her garden layout. My father would've helped his mother, but he and my mother were busy with their business. My sister wouldn't have been able to help either, so I was selected to help her. I wasn't concerned and spend every weekend digging and moving rocks about her garden. She didn't show any interest in sex and when we were close to finishing, she left to go the garden center to get few things. I was alone and started thinking sexual thoughts and so I started to masturbate myself. I was away with the fairies and didn't hear her car return and so I was caught by Diane cock in hand. Shocked and unsure what I could say, but she told me to tidy myself and get the things out of her car. We continued the gardening I thought she would tell my father. But there wasn't anything I could do about that, when were finished she gave me a cold drink and told me to shower and put the coveralls in her laundry. She had me wear coveralls to keep my clothes clean. I dropped the coveralls in her laundry on my way to her bathroom picking up my clothes along the way. I was in the shower and decided to finish what I had started before getting caught. Then the door slid back and Diane totally naked joined me in the shower. I was stunned more than shocked and she took over stroking my cock. Once I came she had leave the shower and dried me and herself and took me to her bed and she fucked me. I was still stunned a bit, but had recovered before I came inside her. After a short rest I decided to try my luck and she let me fuck her and later she rang my parents telling them we had a little more work to do next morning I would stay the night so we could get an early start. They were happy with that and I slept with Diane and fucked again before we slept and I mounted her again in the morning before breakfast and straight away after. We were a little late getting to church, I now visit Diane every chance I get. Not getting sex all the time, but enough to keep me go over to her place. I still haven't a girlfriend and when I do, I'll be well trained to satisfy her.