I have no idea where this came from; I've just had this scene stuck in my head for a few hours while reading Kim Newman's
Professor Moriarty: the Hound of the D'Ubervilles. Something may come of it later.
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“Well, you two are getting on.”
Jim Moriarty took a moment to appreciate the scene laid out before him. Sherlock and Sebastian, sat across from each other- twin hotel armchairs pulled around to better suit that very set-up- and smoking from a shared pack of Moran’s cigarettes. It was almost domestic, if not for the guns laid out on the too-small corner table and the stack of files (the ‘classified’ label still bright red and new) at Sherlock’s feet. The two had obviously been caught in the middle of a conversation. “Should I worry?”
“Probably.” Moran took a long drag and settled back in his chair. At some point- some exciting moment in the retelling, no doubt- he had leaned forward in his seat, interrupted mid-gesture by Jim’s return. Now, lounging back, he conceded Sherlock’s attention back to Jim (back to where it should be).
“Only if you worry that I’ll develop a taste for big game hunting.” The disappointed drawl in Sherlock’s voice was a surprise. It must have been the ‘Kali’s Kitten’ story.