Ahh, fabulous. Charlie is a fabulous character, and I love where you take her in this. Not to mention it's probably my favorite outside-observer-to-Dean/Sam to date. I love that her immediate response is "Oh, DUH they're not brothers, I can't believe I bought that" (paraphrase, forgive me), and how perfectly it fits with her observations from the episode's events and how casual and easy a thing it is for her to note. I also like that moment of panic in Sam & Dean, at least I read "oh shit, someone recognized us" into the surprised hunter reflexes as well.

This goes in my memories now, for it is made of awesome and took me to such a happy place.