"I would think any angel would classify. Especially if they can cross iron, and salt, and devil's traps..." Jack started, shifting to lean forward on his elbows as he looked at Sam.
"Is something wrong, Sam? You look like you've seen a gho- Uh, you don't look well." Jack corrected himself while his eyes darted around the room. Was there something in here Jack couldn't see?
Meanwhile, Lucifer waved happily at Jack before looking back at Sam, and puffing out his lip. The angel actually spoke in sync with Jack as he spoke, holding up a finger at the word ghost, and correcting himself in the same tone as Jack, at the same time as Jack. Then, lifting a hand to his mouth in a mock whisper, Lucifer hissed, "Because you're not scared of ghosts."