In girls, the sign is the start of menstruation. In boys its the increase in size of testis.
When he hits puberty
Everyone hits puberty . Some hit it late, some are early. So, yes he will hit puberty.
you should know
everyone hits puberty but some start at a later age
Everybody hits puberty at a different age. 7-12 is the normal range for beginning puberty.
Smosh - 2006 Justin Bieber Hits Puberty was released on: USA: 11 February 2011
No. Everybody hits puberty at their own rate, so you and your twin could hit puberty at entirely different times.
It's perfectly normal, everyone hits puberty at a different age.
Puberty hits different people at different ages. Some people get it late.
when he hits puberty
The effects of puberty can last into the early 30's.
you will have a period