[The fact that he should be scared never even registers with Stiles. Derek could literally tear him to shreds without even batting an eye, and the growl practically rattling the doorframe was every sign of it. The moment they've made eye contact feels like it lasts for ages and the tension is so tight you could cut the air with a knife, suffocatingly intense as he literally faces down the beast.
Derek taking a breath is what shatters it, and Stiles finally remembers to exhale himself, still holding onto the doorframe with his hand, a physical block to combine with the emotional one. Derek can't. He just can't go out there and kill her. Even if she deserves it.]
We have to find out how she got here, and--what the hell she's doing here. [He can't claim to understand, can't even begin to feel what it would feel like to face down the person who murdered his family and be unable to take her away. (There was not a single fist he could throw up against cancer--his own sorrow at his family was an endless, quiet soundtrack in the back of his head, compared to what must have been Derek's symphony.)] None of these people know what she is.
squeals
Derek taking a breath is what shatters it, and Stiles finally remembers to exhale himself, still holding onto the doorframe with his hand, a physical block to combine with the emotional one. Derek can't. He just can't go out there and kill her. Even if she deserves it.]
We have to find out how she got here, and--what the hell she's doing here. [He can't claim to understand, can't even begin to feel what it would feel like to face down the person who murdered his family and be unable to take her away. (There was not a single fist he could throw up against cancer--his own sorrow at his family was an endless, quiet soundtrack in the back of his head, compared to what must have been Derek's symphony.)] None of these people know what she is.