Castiel was as old as time itself, had seen it all, or so he thought. After watching humanity develop and taking part in the eternal war between the heavens and hell, he'd never lost that cool composure.
Until now.
Despite the fact he didn't technically need to breathe, he actuallt started choking at the question.
"Ben, you're nine!" It was a slightly obvious statement, but still the first one that sprung into his mind. "How do you even know about polygamy and threesomes?"
He blinked, trying to regain some of that composure, before something else occurred to him.