I am 15 a bit over weight and my penis is like 4inches
Hi Guest,
4-5" is average for a 15 year old. Being overweight can hide part of your penis though.
It can grow into your early 20's. Average for an adult is 5.1".
Hope it helps.
I once heard Dr. Oz say you lose an inch for every ten pounds you gain because the fat grows out over it. I don't believe that because I had 7 inches when I weighed 135 pounds. When I weighed 245 I should have had a 4 inch deep vagina but I didn't. I just needed a mirror to see it because my belly was in the way.