Requested an Accepted

I had only just turned 31 and wasn't in any relationship and doing quite well career wise. I was noticed by a partner in the firm not for how my career was doing, but because of my availability relationship wise. Not that she wanted a relationship, she just wanted a child and had decided I was the one to help her get a child. She isn't a tactful person, and she is used to winning. So, she asked me straight out about fathering her child, I was caught off guard and said I would think it over. She said OKAY let me know soon, I recovered from the shock and decided I would accept. Reason being, it wouldn't cost me anything as she wouldn't require financial support and I would also have a child. So, I told I was agreeable and asked how she wanted to proceed, I assumed wrongly thru IVF. She wanted to keep it inhouse so to speak and straight sex was her choice. But first I was assigned to her section as her new assistant, her assistant didn't usually last long. I was started to work late with her at her apartment and stayed the whole weekend and we had sex several times and at work I was treated as she treated every assistant before me. Not badly just abruptly and this continued over several months, finally she tested positive, and her demeanor changed from being abrupt to a pleasant demeanor. Which unnerved me somewhat, also she continued fucking me. She said might as well continue just for our mutual pleasure. She had our baby daughter last October and I'm still her assistant and after she recovered from the birth we've continue to sleep together regularly, and I've bought an apartment in the same building as her apartment. Albeit a floor lower than her apartment, but it's close to the stairs and I visit her most nights. Not always for sex, I like seeing our daughter also. Being a mother has made her think of having another child before she is too old. I'm all for it and our sex is without precautions and always has been. She says I'm free to find a girlfriend, but I'm quite happy with how my career is progressing and I'm getting regular sex from my boss, so I'm in no hurry. Nobody at my workplace knows I'm the father, but my parents know and visit their granddaughter regularly and get on very well with my boss. When they are in town they stay in my apartment as I stay upstairs. My boss's mother visits also, her father has passed away years before and she has no siblings. I have a younger brother who is married and lives in the next state, he has no children as yet.