It can start as early as 8 years of age to as late as 13 years of age. Dark, coarse, curly hair will also sprout just above his penis and on his scrotum, and later under his arms and in the beard area. When girls and boys reach puberty, their bodies start to change and become more mature. His penis and testes will get larger, and erections, which a boy begins experiencing as an infant, will become more frequent.
When does puberty start?
It just means that you are getting a womanly shape. It's those genes again! Your clitoris will get larger.