I was chosen

Long story short version. My uncle was 59 when he married for the first time and married a 24-year-old woman. An arranged marriage as he wanted an heir, I'm 27 his only nephew via his only brother (deceased). No other close family and my father died in a car accident in 2016. My mother died 2009 drug overdose she had cancer and took all her meds at once to end it all. My uncle is very well off and has supported me thru my life and I work for him as his runner. He has major health problems and doesn't get about much, I've trust fund setup by him, and he said I will be looked after in his will. But he had the need to try and get a child and his doctors didn't think he had much chance; due to all the medications he was taking. But he decided to try, hence the marriage and his wife was an orphan and thru contacts the marriage was arranged. His wife is a very nice person and good looking as well. Very shy around people, my uncle tried to for fill his dream on their wedding night. But passed out due to blood pressure problems, so he didn't perform. Other tries went the same way, only once did he enter her and again than passed out. She was upset at the failures as there is a prenuptial agreement and she won't get much if no child is produced. I was attached to her myself and while comforting her I went a little bit further than I should have and fucked her. Of course, I kept fucking as she was willing, and my uncle wasn't able to fuck as he was in hospital again. On his getting released he tried again and thought he had succeeded, but like the previous times he hadn't. Anyway, I had succeeded, and she got pregnant via me. I couldn't tell my uncle I had got his bride pregnant not him. But later he asked me to make certain who the father was by a DNA test. I got 2 test kits and send off the samples after the birth of the child(girl). I got the results back and it was as I thought I was the father. Which I showed to my uncle, both tests were in his name and sent to different labs. The one with my sample was positive and other with his was negative. As he was in a very bad health at the time, I let him think he had done what he so wanted to do. As it made him very happy, and he won't be around much longer. I don't feel I've done anything wrong as it made him very happy, and I was to inherit if he failed anyway. He isn't fully aware anymore and only seems to respond when his little girl is with him. He and I have the same name as he followed his father's name, and I was given the same name as well. My aunt is my fulltime lover.