Hi, I'm looking for a Dean/Cas story.

I don't remember the whole plot, or what the story is really about. All I remember is one particular scene.

Castiel has met Ruby in a diner of some sort and the two are conversing about their roles in the Winchester brother's lives. Ruby makes some comment about Castiel being in love with Dean, and Castiel replies that he is. Ruby is so shocked by the revelation that spits soda into the angel's hair. After the spray, Castiel does some internal moaning that a demon has spit soda all over his hair.

If anyone can find it I would be most grateful!

Thank you.