[ Deryn stays still as Sam comes closer, not moving either direction. Just shaking his head.]

It's fine, Sir, I know your busy. I was outside when you got back. [ (Bluff 13 on being fine) He saw Sam run to Dean. ] I just wanted to make sure you and your brother are okay, if I can do anything for either of you.

[ He doesn't know Dean, but that doesn't matter.]