Castiel was not bothered by her burst of laughter, and while he did enjoy sex, he wanted to see what more there was to humanity. He wanted to experience it beyond just the natural urges that every other creature on the planet took part in. "As I had experienced, it led to me getting stabbed. So for now, I'd like to see what makes humans so special in the eyes of my father."

He wanted to learn more about that mission, and time in the shelter had given him a chance to learn about the world he had been sworn to protect. "That is a good thing to like. My favorite thing so far is the freedom that humans have over the angels. Sure we can exercise it, but we risk the chance of falling and the loss of our grace."

And, he listened, and he liked the answer she gave him. It was honest, and he knew he asked her a very big question.