Hi Adam. SSM is completely right, fanfiction may not be shared on AW. There's an FAQ explaining admin's reasoning
here. As it says, plenty of folks here write or have written fanfiction, so there's no ill will towards it, but AW just isn't the place to share it. Hope you'll stick around and talk games and fiction with us, though.
Additionally, if you have original fiction to share, the proper place is the Share Your Work subforum, which you'll be able to make threads in once you've made 50 posts around the forum.