Disclaimer: I don't own Sherlock. I believe that is the property of BBC, Gatiss, and Moffat.
Sherlock realized with a start that he was humming. Since when did he begin humming aimlessly? He tried to remember the tune, probably something classical. It was doubtful that he'd even know anything else. He routinely deleted unimportant information. It took him a moment to realize he was hearing the same sounds from the kitchen.
Standing and moving silently to the doorway, Sherlock leaned against the frame. John was making breakfast, some concoction with English muffins that admittedly looked delicious. The ex-military man was wearing an apron, complete with ruffles, most likely borrowed from Mrs. Hudson. John Watson was humming.
I love the idea of Sherlock picking up John's habits. Not even realizing it, just spending so much time with him that they're there. This one stands alone, no second or third parts. Although I may revisit it later. Reviews are love.