Sherlock/Lydia - The Enemy [AU]

“Why did you choose to lean on a man you knew was falling?“ I’m gonna go ahead and put a warning on this, because some people might be a little disturbed by the underage nature of the relationship. To clarify, the age of consent over here is 16, so in legal terms, Sherlock is fine... ish. Sherlock is inexplicably drawn to a teenage girl he meets in the woods, despite John’s reservations about the relationship.