This is an eternal contradiction in US attitudes towards porn. Porn was condemned by mainstream consensus in the 80s/90s for creating unrealistic and strange (plastic) bodily standards, but the companies that were closest to the mainstream and in every hotel PPV were Vivid and Wicked, who were the pinnacle of that slick plastic style. The farther you got away from them, the more natural people looked and behaved.

edit: even now, the places where extreme bodily exaggerations, distortions, and surgical interventions dominate are very vanilla and mainstream, like instagram and twitter, or even softcore/non-nude.