"You'll be happy to hear that Castiel is a lovely conversation partner, then. Don't mind him being silent right now. He isn't required to be silent in all scenes, but today is a 'speak when you're spoken to' kind of day, plus safewords, you know. Feel free to ask Castiel questions. I'm issuing blanket permission for him to answer honestly."

Not that he could avoid it. Castiel is blunt, always, and Balthazar appreciates and fears the sharp edge of his tongue.