Started a Family with my Sister

I'm Robert and I have only one sibling Suzie, our mother died 5 years ago of cancer and our father pissed off long before that. So it's just me and Suzie, back in July Suzie came to live with me. She had just gotten divorced and so came to, her ex Eric left for overseas. Suzie was really down after the divorce and started drinking heavily, I decided to give her time to get over the divorce. Anyway I came home after a failed date and was feeling rather horny. On entering I found Suzie passed out, she had been undressing and must have been going to her bedroom. I decided to take her to her bed, she only had a pair of panties on. As I took her towards her room I got a hard-on and decided to fuck Suzie satisfy myself. I had also picked up her clothes and so I threw them towards her room and took Suzie to my bed. I removed her panties and threw them towards the door. Then I fucked her and all she did was some soft moaning, after a short rest I fucked her again and then fell asleep. I awoke alone in my bed in the morning Suzie had gone, I got up and went to face the music as they say. But Suzie was in the bathroom, so I went to the kitchen and had some breakfast and waited for Suzie. About twenty or so minutes later Suzie came into the kitchen and told me she was sorry for actions the night before. She went on to say she didn't what made come to my bed and have sex with me. I told I was happy she had and there was no reason to feel sorry as we were both adults. I stood up gave her a cuddle and she then said she would try not to bother again at night. I told her she was most welcome to join me in my bed anytime and I then kissed her on her lips. I also started feeling her up and after several minutes got her back in my bed and fucked her again. We stayed together in bed for hours and I asked to move into my bed full time. She thought it over for a while and finally said she would. Since then she has slept with every night and I found out Suzie really likes sex. It was several days later that Suzie realized she was protected and she might get pregnant. Once she told me I replied don't worry about it, I hope you do get pregnant. But on the inside I was very worried myself, Suzie took it that I wanted her to have my child and so she didn't start any precautions. At the start of September she tested to being pregnant, she got every test there is since and all tests show the baby boy is healthy so far. I've came around to the idea of being a father and Suzie is very happy with prospect of motherhood also.