From Create Your Own Story
Transporting obscene material is not legal. As the only obscene material transportation cases involving written material that have been successfully prosecuted are related to underage sex, such material is no longer permitted. All such content should be edited or removed. Removing this disclaimer will not alter the legality of posting underage sex stories, but may result in you being banned from posting on this site.
For those who wish to read or write such stories, a lolicon/shotacon website has created a similar wiki story system catering to underage stories. Please feel free to visit http://allthefallen.ninja/index.php?/forum/83-stories/