You've seen pornography before; and the girls giving head in those smutty videos wearing little and showing everything have a tendency to make sexy moaning noises while they're doing it. Are you supposed to do that? You've got a penis practically poking into one of your lungs; how on earth are you meant to make realistic noises of pleasure at the same time? Also, do you make one sexy moan noise? Or do you have to commit and make them all the way to the end. You're concentrating on getting so many things right at the moment, it seems inconceivable that you might utter any sound other than grunting and breathing hard. You moan once; he moans back. Oh no, now it's like a call and response task. You moan again. He moans again. Well, you've got yourself into a right pickle now. Have fun with that one.