Had fun while working away and on my return

I 23 was working out of town for the family business, nothing unusual about that, but of my return my activities while away were known by my grandmother 60. She had an old friend in the town I'd working and my sleeping with the bar maid 58 had been known and thus my grandmother knew all about it. The Bar maid was the only available lay in the town, I could find anyway. My gran didn't tell the rest of the family thankfully; my parents are real born-again pain in the butt Christians. My gran goes to church every Sunday, and I thought a real conservative woman. But she also loves sex and since her husband passed away almost two years ago, she wasn't getting any servicing. So, my activities while away excited her, so she decided it was time grandpa's cabin was checked over. She chose me to go with her to do the outside work while she cleaned the inside. I'd no choice, gran needed help she said, and I was single thus available. A week she said was what it would take, but it also included a time relaxing at a favorite spot of hers and her late husband. My parents were never interested in visiting the cabin my sibling did rarely but not for some years. We arrived not much looked needed outside a couple of fallen branches and leaves raked up was about it. Only dusting required inside, I couldn't see why my gran thought a week would be required even with a bit of a holiday. But I started cleaning up outside and was finished in an hour, gran was also finished inside soon after. She had started filling the hot tub shortly after our arrival and it was almost full water slowly heating. The cabin has mains power, and the refrigerator had been turned off, turned on by gran on entering the cabin. As it was working and got cold, she put our food in from out of the cooler. She said the cabin needed airing out and said we should use the hot tub while it did. I was going to wear my swimming trunks, gran said don't be a prude be a man like your late grandfather was and go all natural like she was going to do herself. Meaning totally naked I was somewhat shocked but just nodded and got in naked with my naked gran. My gran was across from me at first but changed to sit right next to me. She than asked me about my fling as she called it with the bar maid, first I was shocked she knew and as I recovered from the shock she started playing with my cock. That shocked me again, but my cock responded by going hard and gran told me to fuck her to get myself off. Shocked again but did as I was told to and after finishing fucking her in the hot tub, she said we should use her bed to continue the fun. Not shocked anymore we'd sex twice more and again that night, gran was making up for all the time without any sex. I was really drained by the time of our return home, but gran wasn't finished getting fucked by me and I also really enjoy fucking her. I thought I wish girls my own age was as good in bed as my gran, instead of just lying there like the ones I'd fucked just did. I still date and get lucky sometimes, but there's always gran, I especially like visiting her after church and fucking her, it seems somehow more enjoyable, I think.