Horny Grandmother

I'm Ken 23 single live and work on my parents farm. I'm shy and don't go out much, my mother's mother Grace 63 widow came to live with us 2 years ago after grandpa Bruce died. Grandma Grace has always been very active person and she joined local social and sport clubs and went dancing there. I just kept going as normal for me, last march my parents went away to a convention for a week. This left alone with Grace as my 2 siblings went with my parents. Grace would cook my meals and I would look after the farm. The family left early in the morning, just after breakfast. I start work and around 10 o'clock I went into the barn to masturbate out of sight of anybody. I done this often, I had a stash of porn there. After I had started, Grace came into the barn looking for me. She hadn't called out and caught me masturbating behind the hay bales. I was shocked, but all she said was I'm glad to see you're normal boy after all. With that she told that she wanted me to open a jar for her. So I went back to the house with her, after I had opened the jar. I was just leaving, when she asked If I had ever see a naked woman or been with a woman. Hanging my head I answered No, she replied It's about time you did. She walked out and took hold of my arm and told me to come with her. She lead me to her room and once inside she closed the door behind me. Then told to undress and lay on the bed, I did as I was told. Then she started to undress and doing a little dance as she did. Shortly after she was down to her panties and she rubbed the outside of her cunt and then slowly placed her hand inside the panties and played with herself. I had a rock hard cock and was stroking it as she removed her panties. Then looking at me she said I think I should fuck you and show how to fuck. With that she got on the bed and went down on my cock, I blew my load in her mouth and she swallowed it all. It didn't take long for me to recover and soon had a rigid cock again, after sucking it to lube it up. She mounted me guiding my cock inside her and she rode me hard. After that she told to shower with her and while showering, she had me go down on her. We slept together that night and every night until the family returned. Once my parents were home, Grace started going for walks on the farm. I would meet her in the woods and we would have sex. She also introduced me to some of her friends from her clubs. I was there toy boy and didn't need to masturbate, as I was getting a lot of sex. Then Grace told everyone in the family, that need to go to the city for a few days. She asked me to go with her, as my mother had to be home for the school fete. Grace said It wasn't anything serious, her old friend was going be in town and she wanted to see her. I was to keep her company, so I went to the city with Grace. There was no old friend, Grace just wanted sex with me without the other around. We saw the sights of the city and fucked our brains out. Then the day before our return, Grace hire a younger woman for me. She stayed away until the woman had left and then came and asked me how I got on. It was strange at first, but I gave the woman a fucking. Then Grace and me had sex. I'm still having sex with Grace and her friends, but I have met a girl and have dating her. She was shy at first, but we have now started having sex.