The Misadventures of Estel and Legolas by Nili is a series of very long Gen LOTR stories. (I made up the name for the series, as the author didn't give it one. If you start at the bottom and work your way up, however, the stories are pretty much in order.) In these stories, a twenty-something Estel gets into much trouble with Legolas and the twins. Lots of action, torture, angst, etc. Estel and Legolas, especially, seem to be magnets for psychopaths, both elven and human alike.