what size should a penis be for a 13 year old
Here is a website that I found. It states the average sizes of a males pen*s at different ages:
Hope this helps.
the average size is or was 5 inches but i think our parents fed us too much weedies so the 5 inches is out and long dong became the fad
There isn't a size it "should" be as most 13 year olds are still growing or just started to grow.