"Jesus," Derek replies, laughing and shaking his head a little before looking at Castiel in amusement. "Doing my best to drop the facade today. I've been looking forward to this since before I was taken to that other place, and I refuse to let today be ruined. I feel good. How can I not?"

He gestures to everyone milling about, all these people he cares about, and gives Castiel a small but genuine smile.