Had it been not annexed with the heavenly pleasure but only for the purpose of reproduction, human kind would have stopped venturing in to love making long way back, for sure. But Mother Nature is so kind and prophetic that the divine process has been gifted with worthless pleasure. Since the process of love making is a ‘God gifted’ and Heavenly one, our ignorance and selfishness should not make it drop down to the level of earthly bother.