Balthazar has a good feeling about this. Sam has genuine interest, that much is obvious. He's not just humoring Castiel, but actually engaging and encouraging him - and pushing his buttons, which is a delight to Balthazar. He likes to rile Cassie up, too, so he's glad to see a dom finally daring to do the same. Castiel is much tougher than many doms suspect him to be. It's naive to assume a sub would be a shy flower maiden, though. Especially in Castiel's case.

When the conversation tinkers off into comfortable silence again, Balthazar poses his next little trial: "Imagine I'm a stranger, and not Castiel's dom of way too many years... I just realized my age, let's not mention that again. How would you describe him to him? What is your impression of him? What is the reason for you to want him?"