A/N: I really like Lestrade's character in this show. A serious improvement from how he was depicted in ACD's stories. I like that this go-round he's a good-natured, useful guy that gets the job done. Good times. Also, these characters continue to not not belong to me.
Let's just get one thing out of the way—Gregory Lestrade is not an idiot. Yes, when compared to the man currently (Jesus, is he licking the victim's jacket?) inspecting the latest body in string of what appear to be serial beheadings, he's a bit dull, but who isn't?
The point here is that Lestrade is far from brainless. He has a 137 IQ for christsake, and is Detective Inspector for Scotland bloody Yard's homicide division. He makes a living solving puzzles (and solves more of them alone than Sherlock would like you to think). So he has noticed that Holmes and Watson are hiding something.
Damn him all if he knew what, though.
It was their little furtive I-know-something-you-don't-know looks that tipped him off. Perhaps they've been working on the Dixon cold case? Sherlock would do that—solve Greg's pet case out of spite. But that's not it—there would have been a grand show.
Hm. Sherlock's limping today. Probably another late-night fight in some alley. John doesn't seem to be badly off, though, and he's usually the one who takes the brunt of the physical altercations.
But is that—
It is. John has a hickey on his neck.
Oh.
Well that's... good. For them.
So now if you will excuse him, Greg needs to go find some brain bleach.