What is fanfiction? Glad you asked! Fanfiction is a work of fiction based on characters or settings originating in someone else's work (story, novel, movie, tv show, play, etc), created by fans of the original work rather than by the original creator.
Basically, fanfiction writers love the characters and settings of someone else's story so much that they consumed all there was about it and still want more... So they write it themselves.
If this describes you now, or sounds like something you want to try, this is the group for you!