Celebrity Storieshttps://www.lushstories.com/disclaimer.aspx#submissions
We do not accept celebrity stories, or those containing famous people. The same is true of fan fiction and derivative works.
Quote by overmykneenow
That would be what's known as a derivative work.
Derivative works aren't allowed as they infringe copyright. Don't let that stop you writing it though; EL James began by writing a story based on the characters from Twilight and look what happened when she changed the names.
https://www.lushstories.com/disclaimer.aspx#submissions
Fanfiction is not infringing if it constitutes fair use of the underlying copyrighted work. In determining whether a particular use constitutes fair use, courts consider the following four factors:
"the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes;
the nature of the copyrighted work;
the amount and substantiality of the portion used in relation to the copyrighted work as a whole; and
the effect of the use upon the potential market for or value of the copyrighted work."[9]
Fair use is assessed on a case-by-case basis.