Closer Still (Mystrade and Johnlock fanfic)

Mycroft Holmes finds himself in a sticky situation, so sticky that he has to call his brother and his brother's flatmate in to help.
I suck at descriptions so this is the best you're gonna get. Anyways, it's basically about Sherlock and Mycroft getting closer while they help each other through their relationships with Greg and John.
May or may not get smutty in there.
DISCLAIMER! I do not own the characters of BBC's Sherlock or the lovely picture for the cover, all I own is the plot.