Special Relationship

My mother was 16 when she had me and my father didn't hang around, I was raised by my grandparents. My mother went on and done university and then married and had 3 more children. I wasn't high on her list of priorities either and stayed with my grandparents and my aunt Susan who was just 8 years older than me. I didn't go to to university and learned to be a plumber and bought my own house at 22. A rundown ranch style 3 bedroom 1 bath house. Susan went to university and done well. Susan wasn't into to partying or dating preferred study to anything else. My grandparents when into a retirement village, when I was 23 and sold their home. Susan who was still living with them needed a new place to live. So she asked me if she could stay with me, I agreed and she moved and she and I settled into a normal routine quickly. Which was her doing the cooking and me doing the housework. I was raised to be a tidy person and so I didn't make a mess anyway. I decided to take a holiday and Susan was also going to have a break, so we went on a road trip and seen the sites. Not in a big hurry and stayed in motels same room. A week into our trip we got stopped by flooding and had to stay for 3 days in a small town motel. Not much to do except drink and listen to music or watch TV, I'm not a big drinker nor is Susan and the TV was boring and music repetitive. So we got bored and we started playing cards and mucking about and ended up in bed together fucking. It was like a dam breaking, after our first fuck we couldn't stop. On getting back home Susan moved into my bed fulltime and was confirmed later as pregnant. We live as man and wife and have had 4 children in the 9 years since our first fuck and all are very healthy. It might not be the right thing to fuck your aunt, but I can't keep my hands off of her. My mother had rarely talked to me and only found out I was fucking Susan 4 years after we had started on the birth of our second child. She didn't care one way or the other and my grandparents are quite accepting of our relationship and love our children. But our relationship just seems right for us.