Having my family join me

I done very well at university and got a very good after university, but it was overseas. We hadn't been a well-off family before I got my scholarship and the scholarship meant I had a great future. My parents were doing tough and raising my sister, I would send money to my mother to help them out, without my father knowing. He was a very proud man and wouldn't have liked me helping him if he knew. Anyway, the pandemic start I was overseas and doing fine, my family weren't doing that well, my father lost his as soon as the lockdown started, and he believed all bull about the virus and then the vaccine. So, he didn't get vaccinated and got the virus and it killed him. He was always a heavy smoker and I believed that helped in his downfall. As soon as the lockdown was over and I could back, I did and paid off all the bills my family had and insisted they join me at my home in Europe. My mother 48 and sister 28 had nothing to keep them there and agreed to come and live with me in Europe. My mother was 16 when she had me and married my father and they had never left our home state. So, being in Europe was an eye-opening experience for them. First was how laid back it was compared to back home. The free hospital and cheap medicines were totally mind blowing. But as they were new to Europe, they didn't go anywhere without me. My sister started getting very close to me and finally I started fucking her and we got caught by our mother. Who decided to join in and now my sister is pregnant to me and all tests show no problems with baby. She pretends to be my wife and we all share the same bed.