Sterek | Castle AU where best-selling mystery novelist Stiles Stilinski gets hit with writer’s block while working on the 3rd installment of his successful series Howl and is in desperate need of inspiration.
He just didn’t expect his inspiration to come with a badge, leather jacket, pretty green eyes, and stubble.
“Just because Mayor Finstock thinks it’ll be a good idea, doesn’t mean anything. He thinks we’ve got a Detective Greenburg on staff and we don’t.” Derek grips the pen in his hand tighter because, really? Letting a writer tag along on dangerous investigations so he can be inspired to write a damned book?
“Aw, come on, dude- detective. Will you stop with the freaking bitch glare?!” Stiles says in exasperation because it’s annoying but really scary. “Look, Detective Hale, my dad was a sheriff back home so I can actually help-“
“Being the sheriff’s kid and actually being a detective are two different things!”
“Oh yeah? Well, I bet I can tell you why you haven’t found the other half of that dead girl’s body,” Stiles says, picking up the photo evidence.
(p.s. personal heacanon for this one is that stiles sees a photo of derek in uniform from his rookie days and tells him he wouldn’t mind seeing him in it and taking him out of it)