I don't want to be a party pooper but Shoko Takahashi in MIDE-500 is photoshoped. Someone pointed it out a while back when the image first surfaced and I remember double checking.
Just zoom into the image and you'll see obvious "lines" where an uncensored penetration from who knows where was copied and pasted on top. It's a reasonably good job but you can still see the signs. And I wouldn't consider myself an expert at photoshop by any means.
That's why people are always so suspect of images. There are tons of fakes floating around, not just for JAV but for everything.