After my father's death

My father caught the Corona virus and passed away in late 2020, he had lung problems from many years of heavy smoking and was 58 when he died. He had been a widower for serval years then married again in 2015 to a younger woman 11 years his junior. I was still living at home with him as the youngest of 3 and had taken over most of my father's building business. His lung problems stopped him from actually building and he done the paperwork side of his small business and I done the actual building. My stepmother I liked from the start; I was 26 at the time she joined the family. She had a fuller figure and looked great; we got on very well. She was deeply sad at the passing of my father and I likewise. We stayed close together after the funeral, she done the paperwork and I continued the doing the building. Then I got a job repairing a cabin near a remote lake and it wasn't a really big job. I reckoned it would take 4 or 5 days if the weather was good. I got everything I needed to take with me in my pickup and trailer. My stepmother decided to come along to do the cooking and help if needed. I had overestimated materials I would need just in case. To save long trips to get more materials, everything went like clockwork. On the morning of the fourth day, we were almost finished. Everything on the outside was done and we had just minor fixings to finish on the inside. Then there was a thunderstorm, which didn't bother us, we were finished everything by 2pm. Deciding to stay the night and return home in the morning, she decided to go swimming. I hadn't any swimwear and nothing suitable for mix bathing either. She said she didn't have swimwear either and was going in naked, not wanting to be a prude I also went in naked. While swim about with I got a little excited with her close by and naked, that I got a hard-on. She then saw it and she told me I could fuck her as she had also got excited seeing my hard-on. So, we had sex and sex again, returning home she told me to move into her bedroom and we've been sleeping together ever since I still date other women. But my stepmother is always there to drain my balls anytime I'm horny. It's for our mutual satisfaction.