Re: Pakistani models
Caucasian = of, constituting, or characteristic of a race of humankind native to Europe, North Africa, and southwest Asia and classified according to physical features – used especially in referring to persons of European descent having usually light skin pigmentation
http://www.m-w.com/dictionary/caucasian
sorry to dissapoint but it did not mention south asians!!
ive heard some pple calling us(paki/indian) semi-nigero, which i think is appropriate.