He wanted to be king in the eyes of all that he ruled. To do that, he had to get the approval of one small, oh so petite, golden haired oracle. And when she came into his domain, into his life, she took a 'king' and made him practically a god. With sexual rituals and a hot intimate act, he became blessed with the right tools for the job, and she came away with something more.
How does someone born a woman become a king, in a world where only men can rule? How does a king with no 'sword' gain the respect of a kingdom that expects an heir?
With the approval of the Gods themselves, anything is possible!