They made their own choice. They chose family.

It's easier than Sam thought, really. It's easy to forget the fact that Castiel is naked in his lap when he's so animated and obviously talking about something he knows a lot about. Sam does his best to ask good questions, though every once in a while he says something just to get a flush of anger or indigence on Castiel's cheeks, though his own grin shows that he means nothing by it. Just pushing buttons to get a reaction.

No, Castiel is most definitely NOT just some bauble.