OP is a mom apparently. I have a question.
Did these fantasies develop as a result of something in RL? for example, I was raised by a single mother that was very attractive as I was growing up, but she quite hostile to me specifically. I'm 100% certain that the reason for the hostility is because I reminded her of my father. No judgment here, I don't blame her but gaining more insight into the psychology of a mother would be nice.