A Museum of Tattoo Art from the Porn Industry. There are many tattoos out there, but sometimes they are too funny to be ignored!
Jazz Duro - じゅうさん
Jazz Duro's left arm.
It reads "juh san" (じゅう さん), meaning "thirteen (13)."
I have no idea whatsoever on the number, but is it related to the sniper Golgo 13?