Weird Neighbors

I'm Nathan 32 soon to have 3 children who are on the way. It all started last year when the house next door finally sold and the new neighbors moved in. At first I didn't much of them and I'm at home most of the time, it's where I work from. I keep mainly to myself and so didn't take much notice of the new neighbors. I heard stories at the shops, but took it with a grain of salt. Four women all very strange, dressed weird and didn't go to church, what a shocked that was. I also didn't go to church and thought it normal not to go. In early December I met Viola 36 then Renee 33 followed by Marian 29 and finally their mother Vivian 54. All wore black and were completely covered head to toe except for the faces. I of course am the greatest looking man ever to set foot on planet Earth, except I'm not, average is closer to the mark. The women next were slightly above average and great figures and nice to talk too. Vivian was widowed and the daughters unmarried spinsters, according to their own description of themselves. They weren't practicing witches or some weird religious sect. They believed in themselves and were covered because they had very fair skin and got sunburnt easily. They worked hard in their yard getting it ready to plant vegetables in the spring. Anyway we became friendly enough to talk often, I found out they were quite well off and had sold up for a quieter life outside the city. I tried asking Marian out and failed, then I changed tack and asked them all out and succeed. They seemed to travel in a pack, but I did have a great time with them all. After a few months (May), I asked were any of them interested in marrying. All 3 daughters were interested, but still wanted to stay together after their weddings. Being a life long smart ass, I said I would marry them old if I could. Vivian then said they believed plural marriages, which shocked me a bit at the time. But recovering and thinking she was having me on, I replied so do I. Adding but the law is against it, Vivian said legal marriage is so governments can keep records on everybody and also making money from it as well. I should've kept quiet at that point, but I didn't. Asking how do you marry then, we don't we make an affirmation to each other and we are married Vivian said. No a smart person would have shut up at this point, I wasn't smart. Being a smartass I asked Marian about being my affirmed wife and she agreed and looked at Renee and Viola and they also agreed to be my affirmed wife with me saying nothing to them. Vivian then said see it very easy isn't it, I was in shock again and just nodded. So from then on I was able to fuck my affirmed wives anytime I wanted, hence 3 pregnant wives. Also Vivian has joined me lately for sex, lucky for me she is passed having children. Also I sold my house for removal and now live with my wives and mother in law. I was a little unsure at first, but have come to accept it. My parents were shocked of course, but they have accepted it also no. One other thing they don't believe in contraceptives either, not even condoms.