So maybe from your human perspective of "King, or God" you assume that a God will not allow his children to sit next to him or be equal to him. In our religion, we believe that for us to be a god and to be like God, does not take away from his Godliness but adds to his glory. If none of his children became like him (which would be impossible since he had one perfect son to carry on the family business) then in the definition of what we believe God to be, he would not be a God. God's glory is intelligence this reference comes from our latterday scripture, if anyone can help with bible quotes, go ahead...
Doctrine and Covenants 93 (or his glory comes from his offspring becoming as he is). That is our belief. Read that whole section, if you will, it is my favourite section of the Doctrine and Covenants.