Fucking my Grandma

Long story short Elaine 63 widow lived alone till I came to stay after getting a job in her area. I'm Geoff 23 and work at a local warehouse. Last August I got a job at the warehouse and moved in with Elaine my mother's mother and was staying with her till I could find my own place. Elaine lived alone in a 4 bedroom house and she a slender woman attractive for her age. She was happy I was staying with her, shortly after starting work there was another lockdown and movement was restricted. I was still able to go to work as I was classed as needed. But I could only go to work and straight home after with very little else allowed. It soon became very boring and I had to take care of myself by hand. It became boring also and during dinner one evening I was sitting at the table and Elaine was bending over getting something out of a cupboard. I noticed she had a great ass and got an instant hard-on. This shocked me at first, but the shock quickly went away and I eyed Elaine more closely. I started wondering how I could bed her, and was off with the fairies as they say. When Elaine asked me something and at first I didn't hear it, she gave me a little shake and asked if I wanted anything else. I awoke from my daydream and replied nothing thanks. She asked me to help with washing up and so I helped her. After she said she going to have her bath and without thing I replied you want me to wash your back. She got shocked by this and I just gave a smug grin, she started to walk away towards the bathroom then stopped. Turning back towards me said if you really want to wash my back I'm game. It was my turn to be a little shocked, but I recovered quickly and said okay I'm your man. Hoping she was willing and not teasing, she continued towards the bathroom and I followed her into it. She started undressing and so did I, once naked we both entered the shower and I started washing her back and after a while she turned to face me. I dropped the sponge and started feeling her up and then I fingered her and I asked could I fuck her and she said yes. That was at the end of September and we've been fucking every week since then. I haven't even tried to find my own place.