Can a person copyright a fanfiction trope? Fanfiction, by definition, is using characters created by other writers to tell stories, often of a more…x-rated variety. And yet, there actually was a lawsuit between two authors over a copyright claim.
Confused? Lindsay Ellis explained it far better than I could.
Apparently, there’s a fanfiction subgenre involving something called the “Omegaverse”. It involves x-rated material, werewolves, and often homoeroticism. Two of those three factored into a pair of professionally published novels, and one author sued the other and it got all the way to a federal courthouse and a mention in the New York Times.
This is a long video, but it might be worth it for anyone with an interest in copyright law.