How Do I make my penis big naturally?

Posted: 02 May 2015 11:54 PM PDT

Hey guys,i'm a 12 year old kid,turning 13 this june 18 and my penis is 4.5 inches erected.And I think i'm one of those males who are not happy with their size.Is there any way or exercise for my penis to be bigger naturally? Please guys,don't answer Kegel exercise and Pills or Machines. "Naturally" Thanks.