I don't know anything about Asian porn. But I do know a few things about their penises...
I went out with an Asian guy who had a gigantic penis. Actually, I personally never would've guessed it just by looking at him fully clothed. He was your "typical" perception of an Asian guy: didn't take care of his appearance, kinda dorky, short, skinny but with a slight pot-belly and spare-tire around the waist. But he was really arrogant about how smart he was and how much money he made. But when he was nude... his penis was pretty fabulous, and he really knew how to use it for my benefit!
Ironically, I NEVER would've gone out with him or even been slightly attracted to him if it weren't for his roomate and best-friend who was my boyfriend at the time. My boyfriend was Asian too, but he was a big bodybuilder with huge muscles and he was almost 6' tall (definitely did not fit the stereotype in the looks department!) He looked really good, and he was pretty conceited about it. But the only problem was that unfortunately, he had a really small dick. Actually, it was tiny and almost non-existent! Plus, he could barely ever get it up for sex!
Once the three of us were at their apartment and I was going to introduce my bf's roomate to my friend. We all drank a little too much, I guess, and things got a little rowdy. The two guys decided to have a "bigger dick" contest and whipped it out! My bf's dick was just a little over half the size of his roomate's, who would never let my bf live it down after that! Eventually, I broke up with my bodybuilder with the tiny small member, and then I started going out with his humongous cocked former-bestfriend and roomate, outta shape couch-potato! (It wasn't planned that way, it just happened. Long story!)
Yes so anyways, I have been with several big-cocked Asian men since then (my bodybuilder ex's roomate was the biggest!) and also with one Asian hunk with a very small tiny, seemingly broken, manhood!
Like all males, white or black, Asian guys come in all shapes and sizes, in body and dick!!