Pregnancy with mind control?

Hi, my idea is this: a boy loves a girl, but she refuses him, after using a special potion he gain magical power to control minds and force the girl to love him, but the table is turned off, he refuses her and she became very sensual and try all to seduce him, involving unprotected sex. After few time he fuck her, he set free the girl from his power, but she is pregnant and don't know who is the father...if anyone want to write a story about this I'm very grateful, Bye :)

There's a story similair to that where a guy rapes a girl and makes her pregnant. Then another guy who women must always obey orders her not to tell a soul, never to have sex or look at another man again, and spend every waking moment of her life caring for the child. Then he forces her to kiss him passionately and thank him for putting a baby in her tummy. I was like 'woah sucks to be you'.