Well SahiiR ludyanVi once said
Ek shahaNshah ne dolaaT ka sahaRa laY kar
Hum GareboooN k mohabat ka uRaya hai mazak
And theory says its all about money otherwise every lover has a tajmahal in his/her heart but due to lack of financial resources , they keep it in their hearts
Cutting long story short , if given chances .. many pakistanis could write a better sex guide then kama suTra 