My friend Harry challenged me to write Sherlock and Molly's first meeting in less than 500 words, and here it is! Kid!Lock, implied mild Sherlolly.
"It was a shame what happened inside, Sherlock."
The curly-haired fourteen year old had looked up before the quiet, accent free voice had assaulted his thoughts: the sound of the door creaking had been infinitely more information than he needed to tell him of someone oncoming. What he hadn't anticipated, however, was for whoever was coming out (most likely a female pupil, judging by their relatively light tread) to talk to him.
"Mr Roberts shouldn't have sent you out for what you said. It wasn't fair." the gentle voice came again, despite Sherlock's lack of response.
"He believed that his actions were merited, and in my experience with him it is best to do what he says, in the interests of self preservation. You have seen what happens when I ignore his instructions." Sherlock spoke shortly, registering the girl stood in front of him: reasonably bright, product of a poor home (scholarship pupil, of course), insecure, with an anxiety problem.
"That's true, but it still wasn't fair. If he didn't want people to point out that he's cheating on his wife, he shouldn't cheat on his wife."
Sherlock briefly flicked through the file in his mind that held names of people he had briefly met, and eventually stumbled upon one which he assigned to the girl, all within a second in his head: Molly Hooper.
"Thank you, Molly." Sherlock flashed what he hoped was a convincing smile at her, and she returned it a lot more genuinely, her brown ponytail bouncing a little as she did so.
"Anyway, Mr Roberts told me to let you know he wants to see you during break time on my way to the toilet...I suppose I'll see you on the way back, then!" a strange giggle escaped her lips, and she suddenly clapped a hand over her mouth before fleeing off down the corridor and disappearing around a corner within a few seconds. As she disappeared, another deduction about Molly came to Sherlock, one that he would never tell anyone: she was rather pretty.