Sinking into his armchair with a groan, John lets out a pained giggle.

"I really think we're getting too old for this bullshit, Sherlock." This bullshit being chasing after a particularly acrobatic jewel thief and his burly hooligans and ending up ambushed in an alley.

The taller man winces and leans against the doorframe, extricating himself from the voluminous folds of his coat.

"That was a particularly spectacular chase, I agree. And I absolutely wasn't expecting the gorilla with the lead pipe."

"Come sit here, I want to make sure you don't need to go to the hospital."

Sherlock, unusually compliant, perches on the arm of John's chair and leans over. Gingerly, John cards his skilled fingers through Sherlock's hair, palpating his scalp and looking for serious wounds. Satisfied that he's got nothing more serious than a few bumps, he pulls his hands back out.

John expects Sherlock to wander off again, but he remains perched on the arm of the chair, his hands doing a bit of exploring of their own. However, his intentions are far less noble – clearly the adrenaline of the chase has released other fun chemicals in Sherlock's brain.

He swats Sherlock's hands away playfully, with a regretful grin. "Maybe later – I'm really not up for it right now. I'm pretty sure even that bit's currently bruised."