This is a public service announcement.
The biggest dick I have seen in Thailand in over 3 years ... but not the most attractive guy who owns it.
I have declined to take him off several times. Not my type at all.
He is tall, thin and covered in tattoos with shoulder length greasy hair. And he's top only.
He has a thick 8++inch, when flaccid, dick. Erect it must be over 12 inches and fat like a cucumber. No beads, no silicone, 100% all dick.
No he is not in any show but give him 50 Baht and he'll flop it out for you.

So if all you want is to be hammered into the mattress then try No.9 at Screwboys.