I can't be the only one that's noticed a weird cocksucking technique that's becoming more and more prevalent in porn. So many performers now are not sucking cocks properly, with their lips, and are instead curling their lips back and just letting the cock go in and out of their mouth. I've noticed it in AllAnal scenes, when the girl is doing ATM (maybe they don't like doing ATM so they're trying to prevent their lips touching the cock?) - but I see it again and again in other scenes too.

Also, lots of the time they're making this gagging or slurping sound, even though the tip of the cock is barely entering the mouth. Like they're trying to pretend they're deepthroating or something? I just find it so odd - it's that what dick sucking is now?! Why has this "technique" become so common?