Thicker than Water 8/?

Title: Thicker than Water,
Fandom: Cabin Pressure, Sherlock
Gene: Crossover, Drama, Hurt/Comfort, Kid-fic, Fluff
Character/s: Martin, Sherlock, John, 
Rating: PG-13 
Summary: Sherlock's favourite brother hasn't always been there, but he's been there when it counts. For that matter, so has Sherlock.
Warnings: Mentions of Drug abuse in earlier chapters...
Notes: For a prompt on the kinkmeme. 

I'm back (Harry Potter 7- Amazing btw!!!!) ! Not sure if this lives up to people's expectations, but I hope you like!

Thanks to elvendork_lee for betaing!

 

( John wasn't sure what was odder, how he spent the night or who he spent it with... )