"Mister Holmes? … My name is John Watson, I work for your brother. I’ve been assigned to be your-"
Sherlock rolled his eyes, “My handler? Yes. Marvelous. Fantastic. Unnecessary. Go away.”
"I was going to say Babysitter, but you’re in the ballpark.” John smiled, adjusting his glasses, “Let’s just try and make this as painless as possible, shall we?”
AU - John works for Mycroft as both a medical professional and field agent, and is assigned to look after his employer’s unruly brother, Sherlock, who works as a freelance operative - and has a history of using unorthodox methods to complete his delegated missions.