Sam and Dean discover that angels can't see colour the same way they can, which means that their good friend Castiel has never seen the beautiful colours of a sunset, the trees, or the eyes of the man he loves most in this world. "Green.. Your eyes are green. They're beautiful.." Based on something I saw on pinterest, I don't know what website the original post was on but the original creator is castiel-for-king, and it was posted on pinterest by @ashmansfieldd. Hope you enjoy this story, and check out my other story if you like The Outsiders, it's called Dollhouse.