“At least your puppies knock first,” Stiles snorts. “Here I thought their alpha raised them to be well-mannered.”

“There’s a sign,” Derek responds stiffly.

Stiles, whose curiosity outweighs even his hardest of grudges, abandons his chilly façade of nonchalance in a heartbeat. He jumps right up and all but pushes Derek out of the way in his effort to get to the window, and sure enough when he leans outside there’s a laminated strip of cardstock duct taped to the vinyl siding:

DON’T FORGET TO KNOCK Stiles gets cranky when we scare him

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Or, in which Stiles Stilinski moves to Beacon Hills for his junior year of high school and accidentally adopts a pack of teenage werewolves.