Asked by my Aunt

My Aunt hired me for a very special job, she wanted me to get her sister 37 pregnant. My aunt is married my mother brother and her sister was so career focused that she never dated or had any relationships. She is average in looks and build and didn't get on with the males at her workplace. A bit of a ball crusher reputation, my aunt is the oldest of 3 and her sister is the youngest. Last Christmas it had come to my attention that her sister wanted a child and had failed at all attempts so far to find a partner/lover. Her reputation put off any man she knew or knew of her. That where I came in, I also have a reputation and it for womanizing at 30 I haven't married and doing well in my career, I've brothers to produce children to carry on the family name. I'm more for fun than being a family man. As her sister didn't want a man hanging around after her getting pregnant. My aunt thought of me, I wouldn't bother her sister after the deed was done and she would be left with her child to raise herself. Also, my medical and family history was mostly known to them, and I was connected to the family by marriage. Making a stronger family connection for any child I produced with her sister and best of all I was already known to her sister. The thing that made me accept was it was to be a secret from everybody except the 2 sisters. The offer was made, and I accepted after thinking a few days about it. Sleeping my aunt's sister wasn't as awkward for me, as it was for the sister. But after a week of fucking her, we parted, and she got pregnant and after all tests said no problems the wider family was informed. No mention of my involvement, but it wasn't my last involvement with the sister. As I became her go to man, if she needed some sort of help and of course sex. She sexual desires were awakened by our weeklong sexual relationship. As I've said I'm more for fun sexual fun and am always willing to fuck my aunt's sister. Latest I've have on her pregnancy is she is having a girl.