How long does your penis grow during puberty, mine is 4.2 now, how big will it b!
Question:
How long does your penis grow during puberty, mine is 4.2 now, how big will it be ?????
Answers:
I guess you'll be wanting a proper answer now?
Average size is 15cm / 6 inches.
It may grow to more than that, or it may be less.
It should reach this size anywhere between the ages of about 15 and 21, it varies a lot.