Something in Sam broke at that. Small and raw and hurting, but so much more Castiel than they'd heard in a while.

He doesn't stop himself as he leans forward, kissing Castiel's forehead. "Yeah," he says, then swallows and clears his throat to try again. "Yeah, Cas, you can come home. In fact, once Dean has your stuff, we're going straight out to the Impala and we're going back to the Bunker, okay?"

It isn't great. It's a long way from great. But it's a start and that's all Sam needed for the moment.