I am 13 and a half what is the average size erjected, my is 3.5 inches???? please answer/
Hi Johnny,
There are no real averages for under 13. Why? Because under 13 many males haven't started puberty.
But, for a 13 year old, 3-4" is average when erect. 5.1" is average for an adult, erect.
Hope it helps.