Something cracks in Castiel's expression, and maybe later there will be time to hate himself for it - four hundred and seventy times - but now Dean presses his advantage.

"Then you tell them to go fuck themselves," he says, keeping the sword up. "You decide when you stop. You're not their monkey anymore, and you don't want to hurt me. Cas."

Dean looks him dead in the eye. "Please don't hurt me."