As much as I want to scream "queer" too, my better sensibilities tell me to be honest and say that I do enjoy sex much more now that I'm in a deep emotional relationship with the person I'm having sex with.
I'd agree 100%, although I do not have to be in a relationship with someone to want to see her boobies!
My wife made a comment the other day that made me so proud. We saw a good looking guy who didn't have a brain in his head, and her opinion was "He'd be fun to play with for a couple days....."
Damn she's cool. Not many women understand men that well.