Perfect Sister update

I'm Martin and after an accident I was laid up for weeks and living with sister Ruth in her house. We started having sex and I got Ruth pregnant and she had girl we called Caroline after our late grandmother. I met a woman name Wendy 26 and she is now engaged to me and she knows that Caroline is my also child with Ruth and likes having threesomes with Ruth and me. Wendy wants me to get her and Ruth pregnant together, Ruth is willing as she is greatly enjoying being a mother. We are going to start trying as soon as the wedding is over in June and are planning to raise all children together.