The Secret Ladies Tatical Squad or more known as S.L.U.T.S. stories were created around just the Initials. I wrote a small story for a friend just to see what her reaction would be about a crime fighting group that had a bad (or good) name. I sent it off to her by e-mail, what I got back was a string of e-mails that lasted a week as she and her friends read it and commenteded how much they liked the idea.
So taking the comments into account I futher developed the idea and wrote some more stories with each one getting the same results with bigger responses.