I'm not sure how you get 100% implants from that pix. Overall, yeah after watching a few scenes, yesh highly suspicious, but I'm not, myself, gonna say 100% one way or another.
Way too round, like circles. Even in other positions ... Pointing straight up forward.
Same for Ena Koume, yeah she's got the chubby body type, but those knockers are unreal. I mean really, I want to believe, but... can I really be sure??? BTW I'm a huge fan of hers, too bad her career isn't more successful.
A way to verify it would be a fat loss. If her boobs remain as big, it would prove that it's implants.But as boobs are made of fat, girls with a good fat distribution (over the whole body, not just belly or legs) will have big boobs too.
I said other times... I can't say at 100% "those tits are fake" or the opposite. Some cases are obvious, but what makes me suspicious about how natural are JAV tits is that 95% of them are top notch.
Implants in JAV look better than US porn, but they are still very noticeable. Plus, girls still choose implants over fat injection. One of the rare good boobjob is Sumira Mizukawa. Fat injection. It look more natural but you can still notice it.
For example Rena Momozomo or Sion. I won't say at 100% they're natural, but they definitely feel like natural. You can see how those tits are hanging from their body and they are not some globes attached to their torso.
Rion's got a bit smaller, as she lost some weight. They are less full too. Implants would remain the same. Rena's are a bit dropping. If you compare her to another girl who doesn't have a "blessed" bodyfat distribution unlike Ena Koume, has dropping boobs. She got implants and you can notice it. You don't see that for Rion or Rena
I also enjoy when petite, slim, or athletic girls get fake ones. My favorite of this type lately is Aimi Rika.
To me, her boobs are real.
Her right boob (from her perspective) is falling on the side and you can see the skin stretching.
Anyway girls like Ena Kouma, Rena Momozomo, Rara Anzai and Sakura Miura have super soft huge titties that hang and swing and drive me crazy. Love them love them no matter if they are real or fake. Yes Julia too, I don't know what she does to stay in shape, but she's amazing. She's pushing 40 now (going by her biography age, who knows if her real age is perhaps +1 to +5. )
I would say that you can compare that to dudes who are genetically gifted and have broad shoulders, thick arms, without going to the gym. However, the huge majority of guys have to hit the gym to have big arms.
There are tiny girls with big boobs. It's far from being the norm, but they exist. And in porn, where the look is important to be popular and get the most contracts, it's obvious that you will see that kind of bodies. Kinda the same with US actors with big dicks. 18cm isn't the average size, but of course you'll see a lot in porn.
And for Julia, I guess she has a healthy diet, do some sport to keep a toned body. Her weight changed a bit, she's more slender than before, but with muscle under that, it doesn't look saggy. Unlike Rion