Hmm I was trying to avoid an argument, but sounds like you are looking for a discussion.
About stats vs. individuals, it's a complicated topic. You can accuse me of racial profiling, and you'd be a little bit right. Luckily it's just my inconsequential opinion, not like a situation I hold a gun and I have to decide to kill a man or not based on a little bit of evidence and a whole lot of guessing.
How it works in my head is this: back in 2011 (most recent cover of Maria Ozawa I could find) a pair of tits like these was pretty much without competition:
They were not just huge, they were impossible except for a haafu, a Japanese-Canadian mix.
If she debut today where would she belong? Officially she was E-cup, but today even G-cup tits won't necessarily get advertised as such on a cover. I certainly won't bother to check out every newbies with G-cup tits. So in less than 10 years, E-cup went from exceptional to average or even below average.
It might be true that there are now more idols with breast implants than a couple of years ago, however, they will always be noticeable somehow.
Maybe not at first or sometimes second sight, but they never act completely like natural breasts.
Yes yes I was in exactly that same camp until very recently. But you take the population statistics, you can account for selection bias (JAV doesn't represent population statistics), you subtract the detectable fakes, and it still is way too wacky that the median breast size of the apparently-natural-JAV-idols got so much bigger so quickly. Also
this post had a huge impact, if a doctor doing physical exam (much squeezing and feeling of the tits) can't tell, how can I be sure just from pix and clips. So what happened in my head in just last month or so is I crank my suspicious index way up.
So Touka Rinne is great example. Until
your post, I never had a doubt in her. And then I think well can she still pass my enhanced suspicion? The short answer is no. Your first clip look very very good. I was giving it a thumbs-up at first sight. But after a few loops, my eyes seem to see something, just a couple flashes just a frame or two. Near the end of the loop. Hmm not conclusive, but suspicious. And your third loop with her getting piston-fucked supine. Same thing I was very
happy with it. But then my partner butted in and caught me doing what I was doing... so I had to share with her, she immediately said
fake. So I looked again and sure enough after a few loops I start to see possible misshapening when at the end of the up-stroke her tits began to be pulled back down. So that's where I was last night. I finish my previous post (not wanting to say explicitly our negative conclusion), and went to bed and "investigate" my partner's breast physics.
Now you want a deeper probe.... ok... I rewatch the clips again and again... and even downloaded it and do something I almost never do: slow it down 10x and going back and fore frame by frame. Here is what I found:
Now I am 100% sure:
fake. Side note: takes a woman to know a woman. I believed her for so long, it takes my partner only one second to make her conclusion.
Let me be clear, I don't enjoy doing this. I perhaps much prefer to be blissfully ignorant. Discovering she is fake does absolutely no good to my life. It puts some doubt in every single one of JAV idols, even my forever-goddess Julia. I shall not ever try this frame-by-frame analysis on her.