What fic finds you nestled all snug in your bed while visions of Carlisles and Edwards dance in your head?

It's Bellie and Eddie time, folks. And the Winter 2010 round has something new and brilliant: "Story that Haunts Your Dreams". This is a category dedicated to fic that pwns you so hard you have to read it again. And again. And again. A fic that hurts so good you can't stop thinking about it, not even in your sleep.

I rarely go back and read entire fics (especially since I'm into a lot of lonnnng multi-chapters), but I certainly go back for individual chapters and scenes. When I think of who I will nominate for this category, here is a list of juicies that definitely haunts my dreams:

Over the Top by Starfish 422: I have read the Jasper topping Edward scene, like, ten times
Just One Day by Sassenach Wench: I would expose myself as an incurable perv if I told you how many times I read the CxB scene near the beginning the ExBxJ scene later on. HAWT!!
The Hummer by Mabarberella: Since it's a one-shot, I reread this one in its entirety. To date, I have done so thrice. Did I mention I only found it a couple of weeks ago?
Bittersweet Symphony by I'mwiththevampires08: Read the Truth or Dare scene too many times to count
What I Failed to Realize by BeautifulFigment: I have actually gone back and reread this whole fic, paying special attention to the JxE basement scene, of course
Clipped Wings and Inked Armor by hunterhunting: If you're reading it, you know which scene ;)
The Office by tby789: The La Perla scene and the car-in-the-parking garage scene, among others. Yeah, baby!
Definition by RosaleeLorraine: This sent me to bed with a smile last night, and I was still smiling about it this morning. Which is saying a lot, since there haven't even been any lemons yet.

Now it's your turn. What fic finds you nestled all snug in your bed while visions of Carlisles and Edwards dance in your head?