Kate Bishop and Castiel
"...oh wow. So you're like... possessing some chump?" Kate asked, totally kidding. Then she realized that joke was probably in very poor taste.
"I mean, angel! Wow. That's really cool! We don't have angels in my world. Do you have all kinds of cool powers? Wait. You don't like... take people to the afterlife, do you? Because I'm not ready to die."