Sterek is the fanfictional portmanteau that refers to a relationship between the characters Stiles Stilinski and Derek Hale off the MTV hit television show Teen Wolf.
Stiles + Derek = Sterek
Derek: Start the car. Now.
Stiles: Ok, I don't think you should be barking orders, ok? You know, if I wanted to, I could probably drag your little werewolf ass out into the middle of the road and leave you for dead!
Derek: Start the car, or I'm gonna rip your throat out. With my teeth.
Stiles: ... *Starts car*
Fangirl_1: Oh my god, did you see that scene?
Fangirl_2: I know, right?! That was so Sterek!
Fangirl_1: I wish they would just make out already.