Derek wraps his fingers around Stiles’ wrists tightly, careful not to apply too much pressure, and pries Stiles’ hands from his chest, holding the boy back.
“Stiles,” he hisses, trying to get through to him past the cloudy eyes and whatever magic he’d been doused with when the witch had attacked. “Stop.”
The corner of Stiles’ mouth twitches upward and Derek can see the flash of heat that passes over his expression as he flexes his wrists against Derek’s grasp. Immediately, Derek releases Stiles, taking a step back.
“I don’t think you want me to stop,” Stiles murmurs, sauntering closer with his whole body exuding something that Derek feels is a threat so much sleeker, more dangerous, than an animal hunting its prey. Derek has seen the bloodshed of nature, grew up in a world of hunters and wolves, and he has never been so aware of how very weak he is until this moment.
“Stiles,” he tries again, clearing his throat, knowing Stiles heard the way his voice cracked by the slick grin on his face. “Stop. This isn’t what you want.”
“You idiot.” Stiles voice is barely above a whisper as he closes the gap between them, pressing his chest fully against Derek. His lips graze Derek’s, breath hot and curling into Derek’s mouth as he says, “You got no idea what I want.”
When everyone’s talking about Castiel’s OOC-ness in this episode, this is one of the clearest examples that it’s deliberate. It’s not the Crazy!Cas smile, it’s not Stoned!Cas smile, not even Emannuel’s forced smile at one of Dean’s jokes. It’s a small, forced, barely there smile, completely inappropriate and almost opposite of what he’s saying. His eyes dart between Sam and Dean nervously. He’s trying to get their approval. Trying so hard to show that he’s just like them - hunts like them, talks like them, laughs at the same things as they do. But it’s so small and so tense because that’s all he can manage right now. Because he’s too nervous. Because if he doesn’t fit in, if he doesn’t convinced them and himself that he belongs there, he fits there, he has nowhere else to go. And that’s just too heartbreaking.