Fun with my Cousin

I'm Dave 45 divorced 2 grown children who prefer their mother to me, so I live alone and have a home on 6 acres outside the city. I work mainly from home and have 3 horses, chickens and a small dog Mongrel. He's a grumpy old dog and rarely takes to anyone, his real name is Jake. But as he was a Mongrel most of the time I started calling him that and now he only answers to that. He does what he likes and usually ignores me when I tell him things, but he lets me know when people are around. Last March my cousin Ellen 42 1 grown child came for a visit as she had just finished divorcing Alan her now ex husband. Ellen was feeling low and decided a break in the country would be a good idea. She arrived without notice, as she didn't have my new phone number. I had gotten since my own divorce, I was happy to see her, as both of us were the only child of our parents. We grew up together and only separated when we went to different universities. Our parents have now passed on and we are the family each other has except for our children, who either prefer the ex or have moved on with own life. Anyway on Ellen arrival Mongrel let me know as was usual and I went out see who it was. I was surprised to see Ellen and got a bigger surprise when Mongrel took to her straight away. Not as usual barking and acting badly to towards visitors. Ellen told she was sorry for not calling ahead first and I said no worries your welcome anytime. After we had put her bags in a spare room we sat talking about our recent past. Mongrel curled up at Ellen's feet, I was little amused by his fondness for Ellen as he didn't take to my own children that way and they were a bit afraid of him biting. But he hasn't ever done that yet, I didn't have much food in the house as I usually shop on Saturday morning and it was Friday afternoon. So I took Ellen out for a meal and we saw a movie as well, we went shopping together on the Saturday and horse riding in the afternoon. We got along well as was usual for us, really well and the Wednesday it started to rain and we were caught in the barn/shed. A cold breeze started and I gave Ellen a cuddle, this turned into kissing and then fucking on the hay bales. By the time the rain eased enough to get back the house we were totally naked and didn't bother dressing to return to the house and went straight to my bed to continue. Over following weeks sex became a normal part of our life and Ellen slept with me every night. At the end of June she left to go back to the city to get her things and sell up. She was moving to live fulltime with me. While she had been here Mongrel was nice and calm all the time. But after she left, he was soon grumpy as before she arrived. About two weeks later Ellen was back and with everything she wanted and had sold everything else and with her place on the market. We're back to sleeping together and acting like we're married and both work from home. Mongrel stays close to Ellen who calls him Jake and he answers to it for her not me. Stubborn dog, my children still don't visit. Ellen's daughter Ruth has visited and said Ellen looks happier than before her divorce, but Ruth doesn't know we're sleeping together.