BlackHeart Biohazards

Fanfiction.net is where most of our (Sinister ’s) early fanfic is archived, because there was no better host available.

Here’s the scoop on fanfiction.net..

Its submission rules changed several times during that decade, inspiring debate and discussion and what type of content should be accepted on a multi-fandom archive. The Fanfiction.net purge of NC-17 content in 2002 was particularly influential; angering many fans and beginning a fannish migration as many authors of adult fanfiction sought a more inclusive home for their works.

On June 4, 2012, a notice was posted on the front page of FanFiction.net:

Please note we would like to clarify the content policy we have in place since 2002. FanFiction.Net follows the Fiction Rating system ranging from Fiction K to Fiction M. Although Fiction Ratings goes up to Fiction MA, FanFiction.Net since 2002 has not allowed Fiction MA rated content which can contain adult/explicit content on the site. FanFiction.Net only accepts content in the Fiction K through Fiction M range. Fiction M can contain adult language, themes and suggestions. Detailed descriptions of physical interaction of sexual or violent nature is considered Fiction MA and has not been allowed on the site since 2002. [27]

–fanlore

So yeah. Fanfiction.net does not allow any content above the level of an R-rated film.