I think it's kind of hot when I'm blowing a guy I just met, and he indicates one way or another that he is about to cum, and I get the feeling that he thinks I'm going to have him squirt it on my face or chest or on the ground or whatever, but I keep on sucking and he realizes that I'm going to take his cum in my mouth! And then, on top of that, I swallow it. I like how surprised the guy can be while trying to act like he's not surprised.