The borders of Asia, at least as I understand them are the Ural mountains, Ural River to the Caspian Sea across to the Black Sea then the Bosphorus and Agean Sea.and Mediterranean Sea. Anyone from east of this line is Asian. Technically this includes Turkey, the middle-east countries, Saudi Arabia, Peesian Gulf countries, the Stan countries, Indian subcontinent, blah, blah, blah.
Of course this is porn. And porn, as we all know, tends to mis-define and mis-use many words and acronyms to suit its' various niche groups.