Nope, I do not think it is colored water. I think it could be something that makes the girls' pussy more sensitive.
Its the reactions. I personally do not think they are pretending.
You are either underage, or super naive. In which case I don't recommend you ever moving out of your mom's house because the world will eat you alive. No one is taking drugs in JAV. It is all props. Maybe, and I mean a hard MAYBE, you could make a case for some early 00s or 90s and earlier movies having some dubious content, as some films did indeed cross the line back then. But 99% of what you are watching is all fake; some movies even use fake penises.
Do they have safe words? If you watch some of these movies the women keep screaming yada/yamete etc..
I think the universal safe word in the JAV industry is the English word "stop"(pronounced sutoppu in Japanese). The actors seem to immediately stop what they're doing whenever the actress says that.
Have you seen the movies where the female is tied and fucked with machines?
Yeah they definitely use safe words. A couple examples where you can see "stop" being used: In the leaked uncensored video Fc2 PPV 1525602 at 14:55 they have the girl tied up pretty much just like that pic you showed and she says "stop" when it gets too intense and everyone stops what they're doing and the camera even turns away. Also in CESD-390 at 47:35 during an anal scene the guy is going a bit too hard so Yu Shinoda says "stop" and the guy immediately stops thrusting and then she asks him to pull it out and he does.
I know this is old but just looking to clarify. Also looks like javminter is long gone. But it Looks like this is the Substance use genre jav. But yah its probably just lube, but the fantasy is that they are drugging the girls as per usual with these captured female agent torture flicks. The actors do refer to it as biyaku(love drug) . So it isn't filling up like a cream pie or something. But the fantasy of forced drug sexual arousal.
