My brother David

Our mother died when we were young (cancer) and our father raised us as we had no other relatives still alive. My father was 44 and my mother was 38 when I was born 3 years after David. I didn't do well at school and got by working for my father, David was very smart and finished university 2 years earlier than others his age and had done very well. Got into some Government research program and was doing very well and was highly thought of. Our father sold up his business as he had gotten ill and died a year later (lung cancer) he had always been a heavy smoker and had ignore his doctors to stop smoking till too late. I was 27 at the death of my father and I had my inheritance from my father and no idea what I should with the rest of my life. Then the pandemic struck, and I got Covid, and I was staying with David as I had nowhere else. My father's place was sold to split for our inheritance, and I had moved in with David. He took good care of me, and I got over the virus. David didn't date or do much decides his work and didn't even drive a car, he was picked up and taken to work and returned home afterwards. So, he hadn't bothered to get a car, but had a driver's license. being in lockdown was boring for me and to David it was more like his normal life without having to the research center. He just worked via the internet, then one evening I was both bored and horny and David went to shower as usual at the same time every night. Feeling a bit mischievous I thought I would shock David by joining him in the shower totally naked. I did shock him and myself also as David got aroused and he had a large cock. I decided to get him and myself off and got him to fuck me, he was a bit reluctant at first. But I've always gotten him to do what I wanted, and this time wasn't any different. Off course the lockdown still dragged on and I had gotten David to fuck me and as he was the only available man, I continued using him whenever I wanted too. He never resisted again after our first fuck, he enjoyed the sex, and I was his first and only lover. By the time the lockdown ended I was sharing his bed every night and was happy to continue. David as part of his work had to attend dinners and other functions and I went with him. The people there assumed I was his wife and I let them think it and also started wearing our late mother's rings. I had come around to thinking I had it good living with David by the time the lockdown ended. I didn't need to find my own place or a job to pay my way. My inheritance wouldn't last very long and wasn't enough to buy my own place. Living with David, I had everything I wanted and didn't even need to fuck him to keep it, excepted I loved fucking him. He was the only lover I've had who let me control our lovemaking. Then as I saw other wives of his research colleagues getting pregnant and other who had children. I got clucky and wanted my own baby and without asking David I stopped taking precautions and got pregnant without telling David until after I was pregnant, and all test showed no problems. He was shocked but I convinced him to accept it and now we've a son named after our late father. I also believe we should've at least 2 children total and will get pregnant as soon as possible after our son is 1 year old in July. I'll wait till pregnant again and tests show no problems before telling David.