Johnlock - Do I Wanna Know?

This fanfic is based off a Fanvid I saw on YouTube. I give the owner full credit for the idea, I just wanted to write it out as a fic.

Although, I put my own twists on this story and it's original video plot.
The main scenario and the way things play out are almost the same as in the video. But I decided to put Lestrade, a little bit of Anderson, Donovan, and Mrs. Hudson in this as well.
Mycroft and Mary are also in this. And some other characters from the show are mentioned in this. I didn't want to leave too many people out!

John Watson is a high school teacher.
Sherlock Holmes is one of his students.
Somehow, John falls for the kid.
But John is married, so his little (illegal) affair ends, badly.
Three years later, John moves to London and is offered a place to stay after his nasty divorce, but, he'll be rooming with none other than his old student.
Warning: Smut and Angst
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