ER (Established Relationship): refers to stories featuring characters already involved in an established romantic or sexual relationship prior to the beginning of the story. The opposite of a first time fic.
See also: First Time
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A-Z Fanfiction Guide: Terms to Know
RandomAn A-Z List of all the fanfic terms YOU should know! (Cr. Goes to Angerfire.com for references and information) * this will be updated periodically, so if some things are missing, they haven't been added yet.
