Living with my Grandma

I'm Gerald 26 single and work in construction, last June I moved in with my mother's mother Jane 63 widow. Mainly for a cheap place to live and to keep Jane company. Grandpa Albert 76 had passed away in April and Jane was then left alone. I was going to work in the city and my mother Cheryl suggested I live Jane who lived in a 4 bedroom house by herself. Jane still works as a community nurse at the local health clinic. Jane was easy going and I had always got on well with her, once I had moved in I found Jane always on the go. A week after I moved in Rhonda 59 divorced and a friend of Janes's came by on a Saturday to see Jane who was out at the time. Rhonda stayed and started to talk to me as I was fixing Jane's back stairs that were a little loose. Rhonda is nice looking and as I soon found out has a high sex drive, as soon as I was finished she asked me for sex. I hadn't anyone special so thought why not and we had sex. She became a regular visitor especially when Jane wasn't home and I was as lived across the street. Then last month Jane asked me how I liked fucking Rhonda, I was shocked at first. But said I enjoyed it and how did you find out. Jane, I know Rhonda and I know how she likes sex and I also know her perfume and have been smelling it in the house on my returning home. I asked are you upset with me and she said no you keep enjoying yourself. So I still am.