Not until I read this thread I didn't hear it. There's no reason for a girl, even a pornstar whore, to like throat fucking. But I can kind of hear what sounds like darkness and desire, the girl not being aware of anything but the cock in her mouth. Except for the girls who make that loudish hum when they're being throat fucked. To make that rythmic whining noise. Those are the girls just trying to get off the set quick.