Eating pussy went out in the 70's along with pubic hair. We are on to a new generation of extremely selfish and lazy masturbators that dont want a real representation of what people do, they want the fast and furious gagging and ass pounding. And lets not forget the ass to mouth....
I think this hits the nail on the head. Look at porn from the 70-80's and you see the oral sex decline or shift going into the 90-'s through present. Now it is predominantly POV blowjobs. The typical amount of time a guy does go down on a girl in modern porn can be measured in a fraction of seconds. They spend more time on the in depth interviews - "so whats the biggest cock you ever had?".
Another good metric is the money shot. Older porn towards the end or climax of the scene, the woman would make love to the guys cock rubbing and sucking it resulting in the guy blasting her. If a guy and girls timing was off this is where the "stunt cock" would come in.
Now the guy pulls out and has to aim his dick at her face while she gapes with her mouth open like a freshwater bass. I guess it cuts down on cost having a back up dick or something, or just damned lazy.
Porn is for the most part a poor representation of actual sex, which is why many people enjoy the amateur and the webcam market so much.
