John Watson

John's still kinda of overly grinning about what happened on his birthday.  He gets a double dose of Sherlock-face for his grinning-like-a-fool trouble!  Martin and Peter are both very different from Sherlock, however, so John is not too disturbed.  Even if he does like the ginger.  Later that day, Kenzi joins in the fun since Sherlock told her all about The Kiss!  And then Veronica bugs him for information that makes him feeling fairly uncomfortable and Molly checks in about their progress on the bodies they found strewn around campus and takes the time to tell him about all of his future girlfriends...  Finally Sherlock saves him from the crazyand they go to play mad scientists

In comes the Master!  John goes to help since the poor man seems to be out of his element and recently dead.  This is not new for John.

After a bit, Elena mentions a party.  John gets Sherlock to go with him and learns the true meaning of 'friend' to the youngest Holmes.  Before the zombie attacks the party, John and Sherlock go off to have a spar at the gym and when that's finished, John returns to the scene of the party just in time to examine a still moving severed arm.

Freaked out, more at the fact that he's freaked out than at the ghouls and monsters, Sherlock comforts him. 

Finally, Peter and Mohinder come in for a visit and John tests out Mohinder's supposed photosensitivity.  Not long after they leave, he falls comatose.