I FOUND IT! it’s called Her Unwanted Mate On The Throne by Caroline Above Story on the AnyStories App!!

THIS STORY IS EXACTLY LIKE “Her Unwanted Mate On The Throne” by a user by the name of ‘Caroline Above Story’ on AnyStories app … is this a case of Plagiarism??

I KNEW THIS BOOK WAS FAMILIAR!!! I know that I read a story EACTLY like this but I cannot find the name