Mary

I live in the old family home that belonged to my grandparents, they have been gone for 8+ years now. But the family decided to keep it, I left school after high school and learnt a trade and on getting qualified I got a job in the old family home town. Hence me living in the family home, I had to upgrade the plumbing on moving in. But being a plumber made that easy, also my mother Katherine came and with help of my sister Leslie redecorated the inside, which didn't that long being 3 bedroom, 1 bath house on 6 acres just outside of the town. Then they went back home and I settled into my new life. I had only one neighbor Mary 57 widow and she kept to herself mostly. After 2 months I was home with twisted knee and off work for a few days (work accident). While sitting on the porch looking at the sites with my grandfather's old telescope I spied Mary in her back shed with the door open facing towards me. She was being fucked by her old large dog and he was really giving it to her. To my surprise I got a hard-on, so I started to masturbate myself while watching her get fucked. Over the following days I kept a look out for her getting fucked by her dog. I only saw her once more before returning to work, but I had to masturbate myself again. On my weekend off I kept an eye out to see if Mary was getting fucked. Then on a Sunday afternoon she was getting fucked again by her old dog again. Several weeks later I heard her dog had passed away and I wondered if he passed away fucking her. Also wondered if she would get another dog, just by chance I sent to her house by my boss as Mary had some water problems. He decided as I lived next door I would be the best to send. Her water problem was old pipes and all would need replacing. On telling her she was worried about the cost, I decided to just charge her for the materials and do the work on the weekend. But I had to run it passed my boss first, he agreed. So I measured what I needed in piping and everything else I needed and on the next weekend I started. First I put the new piping next to the old and would disconnect the old and reconnect the new when I ready. The Sunday I dug a trench from the mains to the house. But that was all I could do until the next weekend, the following weekend Mary went shopping and I done the change over while was gone and on her return I reconnect the water and flushed any dirt and air out of the pipes. I checked over everything for leaks and found none. As I was now finished I was about to return home and Mary was looking at photo of her old dog and she said she really missed him. I said you looked to really like him fucking you every time I saw you and him in shed. I had said it without thinking and it was said before I realized I was actually saying it instead of thinking it. Mary was mortified that she had been seen and almost fainted from me saying I had seen her getting fucked by her dog. She recovered and asked me had I told anyone else about her and her dog. No I haven't and adding I use to masturbate myself watching her get fucked I answered. You did she asked, yes I replied and I only admitted it to make her feel better about being seen. No she seemed to relax a little and I said I would go home. I felt I had put my foot in my mouth and started to leave, don't go she said. I looked at her and she offered me sex, I asked why and she as payment for fixing my water pipes and to reward you for not telling anyone about her and her dog. I was a bit shocked but my cock grew to show its full agreement, so I had sex with Mary and after a short rest we fucked again. From then on she would come over and ask me if wanted sex on seeing me get home from work or on weekends. I never refused and were still having sex regularly now. I've also met Sarah 24 and she is Mary niece and we have started to date no sex yet, but there is always her Aunt Mary for that.