It's unnerving, to say the least, and Castiel isn't sure whether he's relieved or unsettled as a result. But he nods, accepts Sam's way of doing things for now.

His own room... with the ability to lock the door.

It's a nice idea, but it also makes his head spin because it sounds and feels so wrong, initially. What would Jason say. And will Sam be as okay with it as he claims right now?

Castiel wants to be used, if only because that's all he knows, and not having it happen sends him reeling, makes him want to be able to cling in other ways. Instead, he carefully pulls away to stand on his own. Nods and turns around, not trusting his idle hands for now, and not thinking about what kind of image his back will present to Sam.