"Murder Your Darlings" by Chris Piascik; stuff available on society6.
on twitter as @umbrella_seller
Pairing: Moran/Moriarty, Jim/Seb, whatever you want to call it
Word Count: 2100
Summary: Soon it was Moriarty who stalked the jungles of Moran’s mind at night, who snarled at him from the shadows and hungered for his flesh, and Moran knew that if he let his guard down Moriarty would eat him alive.