system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is Japan the defacto "source" of such extremely weird pornography (tentacles, etc) yet their regular pornography is always censored?

Nearly every single Japanese pornographic video censors out the vagina and penis. Yet Japan dominates the world in terms of output of aliens and demons tentacle raping schoolgirls and all sorts of other weird and unusual sexual acts.

Why this strange contrast? On the one hand, this appetite for the totally outlandish, and on the other, extremely regimented and censored "regular stuff"?
gpt
You answered your own question without actually thinking about what's being censored.

In Japan, it's against the law to show genitalia of either sex (for humans). You can't actually depict sex. So because Japanese law is so strict in that regards, they had to get creative with their porn.