i'm 18. im 6'2 and 175. i have hair under my arms and have some chest and stomach hair. i also have pubic hair as well. i do have a little hair on my face. mostly on the sides and under my chin. however, my penis is 5.3 when hard but rather small when soft. also, my testicles are still very small. i am wondering when my penis and testilcles will begin to grow? can anyone help me.