I can always get a fuck from my Gran

Long story short, my grandfather passed away when I was 18 and I was to stay with her until everything was sorted. I hadn't had sex and was still a virgin and played with myself every chance I got. My gran Angela then 61 at the time was out visiting a friend and I knew from previous times she would be gone at least 2 hours. So I decide to masturbate and I had really got going and didn't hear Angela return home. I was in my room at the time and she went straight to the kitchen and once she had put the kettle on came to see if I wanted anything. She opened the door saw me masturbating and I was shocked at getting caught. She told me when I was done come down for a snack and he left. I cleaned myself up and went down to face the music. But she didn't say anything about it and only said her friend had taken ill and was in the hospital. I waited for her to say something but she didn't and after our snack, I helped her clean up the dishes and went sat in the garden under the tree. About an hour or so later Angela called me inside and asked if I would help put some boxes of grandad's thinks in the attic. I agreed and we shifted the boxes to the attic it was a very dusty place and we both got dirty. After finishing I headed off to the bathroom to clean up. But Angela asked me to give her hand moving some furniture in her bedroom first. So I went to her bedroom and shifted the furniture around as Angela wanted and then she said she was going to have a bath, I turned to go to the other bathroom to clean up and she then said stay here with me and you can wash my back for me. I was shocked by that and she added you can play with me and give your hand a rest. Then she took my hand and led me into her bathroom, while we were both undressings she told me that she hadn't sex for 5 years and missed it a great deal. I didn't anything and got into the bathtub with her, we started washing each other and I felt her tits and she played with my cock. After a time she let get dry and take this to my bed, after drying each other we got onto her bed and she went down on me. I didn't take long blew my load of cum into her mouth. She swallowed it all and told to go down her, which I did following her instructions, then after my cock had reharden again I mounted her and blew my load inside her. From that night on I slept with her every night till I returned home 3 months later. A month after I got home Angela came for a visit and I was able to fuck her when everyone else was out or we had gone out together. I got work in the same city as Angela and move in with her and straight back into bed with her. I would still try and date girls and had some success with that, but could always fuck Angela anytime I wanted. Then I met Gale and we started a relationship and then we married and got our own place. I would still go over to Angela's place to some little jobs she wanted to be done or mow her yard for her and would fuck her each time. Gale never suspected anything and still doesn't know now. Angela had a heart attack at 73 and passed away, my mother Lorraine moved into Angela's home after her and my father divorced 3 years ago and over several months I worked on her and finally fucking her when Gale was away with the children, that was 2 years ago now and I'm still fucking her every chance I get. Gale is 7 months pregnant with our fourth child and fucking Lorraine is all the sex I'm getting at the moment.