There was a story posted on Deviantart a few years back where the main character does something to piss a magician off. He/she puts a curse on the character that causes her to become pregnant whenever someone around has an arousing thought about her. The end of the story has her transported to an AA type meeting for people with a pregnancy fetish and things progress from there. I have no idea what the name of the story or the author. Hopefully my summary is sufficient enough to help track it down. Any help is appreciated.