Married my Cousin sort of

I recently married my cousin legally; she is my step cousin. My father remarried several years after my mother passed away; I was 8 at the time and my stepmother had a sister who had a daughter then almost 6. My father and stepmother got Covid, and it took them early in the pandemic fairly quickly as both heavy smokers and had lung problems. I was setup for life as my father was well off and I had only my step aunt and stepcousin I knew of. I was then almost 27 at the time of their passing. Just finished university and about to start my career, my aunt and cousin weren't as well off as I was, and the lockdown dragged them down further. I decided as they were the only family I had, to have them moved in with me. I managed to get them moved in with me, getting permission for their move across the city during the lockdown citing personal hardship and health reasons. Luckily, I wasn't pressed on what hardship and health reasons and got written pass to go and get them and return straight to my home, no detours allowed was stated on the pass. I picked them up and got them to my home and we settled into living together. My aunt widow and cousin were like me nonsmokers and we had always got on very well. As the lockdown proceeded my cousin and I got extra close and finally started sleeping together and got caught in bed together by my aunt/mother-in-law. We had slept in, and she came to tell me breakfast was ready and caught us. She wasn't shocked or surprised as she had seen us getting closer and closer. She only said glad to see someone having some fun, me being the smartass I've always been said you're welcome to join us anytime you want. She smiled and said breakfast is ready again and left, later that day in the evening she said to her daughter I suppose you are moving into his room now. Yes, as reply she got, I added your welcome to join us hoping for a shocked response. But instead, I got okay if really want me too responses. I responded with yeah, we do, then my soon to wife added we really want you too. That night I had my first threesome and due to that we didn't use condoms, we had them just didn't bother with using them. Whether or not that was night my soon to be wife got pregnant is neither here nor there as we stopped using condom thereafter. As soon as the lockdown lifted, we married and a couple weeks later my wife tested positive to being pregnant. We now have healthy son and are working on having anther as soon as we can. The three of us continue to share the same bed and regular have threesomes together. my aunt/mother-in-law is too old to get pregnant. But it wouldn't faze me if she did, we keep to ourselves mostly and I've decided to not pursue my career as I don't need too. Financially well off and can't be separated from my wife too long without getting lonely. I do dabble on the bond market to keep my hand in so to speak.