Commentfic

Fic written in a comment to an LJ or website post. Usually either written in response to a prompt, in order to carry on the story in the post, or as a token of gratitude for the original poster.

Commentfic communities exist on LiveJournal.

Commentfics are often PWP, Humorfic, Smut or Fluff. Because of their spur-of-the-moment nature, they often suffer from a lack of Spelling and Grammar, however, depending on the Author, they are often excellent little slices of fic, and very enjoyable.

Commentfic is generally too short to Spork.