I dont think i'm confused about causality here. If you cant get excited unless you see or do extreme stuff, you're going to have a pretty difficult libido,as in reality not that many women are willing to "perfom" these "stunts".
I dont think one needs to be already interested in extreme fetish in order to get hooked to it,the more one looks at porn the more one seeks extreme stuffs. It's like any other addiction.
> I don't know what "v...t" or "o...p.....s"
Nevermind , i was saying that japanese porn is well known for its extreme fetish.