Baby makes a strangled noise and wonders why everybody keeps hauling him around like this. He's supposed to move people, not the other way around. Unless he's out of fuel. Sometimes, that happens.

"Cas," he replies, which was always the name Dean had given the angel. "Gave him rides. Heard the word." Three-word sentences! He's getting better at this. It's hard, though, converting thoughts into words that make sense. Choosing the right words to describe what he's thinking.

"Remember?" Dean should know this. Why doesn't he know this? "I'm Baby." He feels the need to stress that after Dean called Assbutt 'Baby'. Assbutt is NOT Baby. Baby is Baby!