I'm 13. My erect penis size is 3.5-4 inches. I have small ball hairs and no armpit hair. I masterbate but can't ejaculate yet. Have I started puberty and if not when will I start?What is the average erect penis size for age 13?
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Hi Guest,
3-4" is average for a 13-14 year old.
Armpit hair often comes in later, even after 16 or so.
You are getting close and should be able to ejaculate soon.
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