Moran visibly searches for the most appropriate way to say oh fuck no; Irene smiles and says,

"I think I'll siphon mine off Jim. Speaking of -" She levels a look at Jim, holding her hand up. "I'll have that back, if you don't mind."

Obligingly, he floats the pin back to her. Their eyes meet as she fixes her hair, the kind of quick and knowing look only the best of friends can share.

Sherlock Holmes had best brace himself, because this is one hell of a game changer.