I don't have a clue what the title was or who the author was. I don't know if it's finished now, but was a WIP about four months ago, if that helps. Jared and Jensen were messing around in someone's office or something and they accidentally destroyed a book of fairytales. To fix the book, Jensen had to live through the fairytales and I'm pretty sure Jared was his love interest in most or all of them. Also, Danneel was a fairy and she told Jensen what to do.