sorry to piss on the parade here, but the main shooter in these videos has a very serious case of HPV around the crown of his cock.
As I loosely understand it, he's been busted for shooting/distributing in Japan. Hopefully this is the end of his infecting people.
Again, sorry, but... it had to be said.
Japan's not really great at these sorts of things, either. They don't have as good as drugs for VD and since this is all underground, there is no policing of such things, like in the industry in California.
Pearly penile papules are sometimes mistakenly thought to be signs of a sexually transmitted disease or of poor hygiene. The condition does not appear to have any outside source. It is not the result of an infection or other underlying cause. The bumps are not malignant or premalignant.