In our part of the world, marriage between cousins are quite common. Be it Pakistani or Indian culture, for decades desi families have adhered to this tradition, sometimes going so far as to force it. In fact, it shouldn’t come as a surprise that some Pakistani celebrities got married to their cousins as well.
Perhaps most Pakistani families prefer it this way, seeing as how the couple may know each other since childhood. They feel there’s less risk of family conflict and divorces this way.