I'm your Sherlock- (Spoilers for S3ep2)

[crazycatt71]

Title: I'm your Sherlock
Fandom: Sherlock
Pairings: John/Mary, Sherlock
Rating: G
Word Count: 837
Warnings: Spoilers for Sign of the Three
A/N: The summary is under the cut. This pure fluff

Summary: I started wondering what John and Mary's baby would call Sherlock and this happen.           I'm your Sherlock on AO3