I married my stepsister

My mother married again when I was 15 years old, my older brother was 18 years old. Her new husband had a daughter 15 years old and was widowed like my mother. My stepsister was quite shy and nerdish with braces, I was into sport of all types and so could be called a jock. We attended different high schools at the time, and both went to same university together and still lived at home with our parents. I had my own car and liked working on it and I drove to the university each day, taking my stepsister with me each time. We got on well and she helped me with my studies, and she would wait while I was at training, and we would return home together. Anyway, a bunch of bullies tried to extort money off her, I stepped in to stop them. There was 5 of them and they weren't going to back down, but I was on the team and the Capitan, and 2 other team members came to my aid. The bullies back down, the Capitan said the team sticks together and helps their teammates and their girlfriends. It was then I realized my teammates thought my stepsister was my girlfriend and I didn't correct him. Because I really liked my stepsister and was always happy to be with her. Then my mother told us she was pregnant, and we were all happy with the news. My stepsister and I were getting closer all the time and when I kissed her, she kissed me back. We were 21 at the time and started a sexual relationship, everything except intercourse as she wanted to be a virgin on her wedding night. But we did progress to anal intercourse and started sharing the same bedroom. No problems with our parents as they thought we were good for each other. In our last year of university we married, older brother was marrying, and we made it a double wedding. I got my stepsister now wife pregnant fairly quickly, but it wouldn't affect our graduation. Still living with our parents and my wife started work with her father and I got a good job as well. I finally got an old house 5 doors down on the other side of the street from our parent's house. It mainly needed painting, rewiring and new roofing. My brother is an electrician and done wiring at cost of materials and an old friend of my stepfather done the reroofing with metal instead of shingles that were there, saying it would last longer and was cheaper. Living close by our parents, my wife would walk there in the morning leave our son with mother and go to work with father. I went to other way and that how it was then my brother bought the house next to mine and we installed a gateway between our yards. Then the house on the other side came on the market and next day it was sold. I was just getting home, and it started raining and went to my parent's place in the car to pick up my now pregnant again wife and son. I was surprised to see a for sale sign on their house, it was then I found out they were the buyers of the house next to me. They had seen it come on the market and decided to buy it straight away, that weekend my brother and I installed another gateway to our parent's new home. My brother's wife takes their children and our little stepbrother to school every day, she's a schoolteacher there. My mother come to our house and watches our son and new twin daughters. My wife goes to work with father and my brother got a dog for his children, as his excuse for not getting one failed. He claimed the yard wasn't big enough for a dog and with mine available as well it still wasn't enough. But when our parent's yard was added that excuse fell flat, hence the dog. The dog who is more attached to our mother then him as she is always there.