This is pretty much everything I want in Loki fics too, so I second this. I think nearly all my favorite Loki fics fit these qualifications one way or another if you want to check my bookmarks on AO3 (http://archiveofourown.org/users/100indecisions/bookmarks) for now (I can actually go through and pick out some especially good ones later, because as it turns out my bookmarks are a huge mess).