I've heard it said that most providers have MM tits whether you can tell or not.
I have felt fake tits before, but it wasn't apparent to me Kori had fake tits. I didn't look for other clues like under arm scars for saline bag MMs, nor was it important to me since I prefer non-milf MMs, that are firm and stick out, ideally D size. If fake, Kori's are well done, and I prefer them over, other natural tits.
I like sks Joah's tits as reference.