If he'd been in a more patient mood maybe he'd have come up with a quip here, but it's Holmes's turn to respond to a request without hesitation. He runs his tongue firmly along Watson's cock from base to head and traces along the ridge, savoring Watson before he sets to work. This isn't a time to drag anything out longer than is strictly necessary, so he doesn't spend time on a long preamble. He takes Watson's cock into his mouth and gives a couple test strokes of his mouth before he finds a steady rhythm.

While he isn't looking to draw out Watson's agony any longer, it doesn't mean he lacks finesse; occasionally he pauses at the head, sucking harder for a few moments as he slowly makes his way back down the shaft and then finds his rhythm again.