I will write you a story to cater to your desire for a specific plotline, romantic situation, fantasy/sci-fi topic, kink, or just to give you a few minutes free of boredom. Consider me your personal storyteller who is willing to revise my stories if the end result is unsatisfying.
I am willing to write for any number of topics some might find squeamish or obscene. I am even willing to include favored characters from a book, TV show, movie, etc, provided I either 1) already know the character/story or 2) am provided information about the character/story by you. I will not, however, base my story around such a character (or said character's world), to avoid any copyright issues. If you want fanfiction, to adhere to fair use laws, it would be free. Therefore, you would have to look elsewhere.
On the other hand, if you would like to provide me with your own original character or original world and have a short story revolving entirely around them, I will do so for the Tailor-made Short Story package (for detailed use) or the Preferred Short Story package (for minimal use).