What is the fascination these days with needing such length to a penis when the average vagina depth when fully aroused is only between five to five and a half inches, it's not the length that counts it's the girth and how you use it that counts.
The average adult penis is 5 to 5.5 inches, when you see someone else's penis it often looks bigger or smaller than your own because your seeing from a different angle to how you see your own.
Shoe size 10.5
When was 25 I got a job on a building site and my body went through loads of changes, I think like going to the gym being active makes you produce more testosterone. Symptoms: learning to drink, smelly armpits, smelly feet, hair on chest ( just round the nips, nowhere else yet), firmer and larger balls, and my penis has grown from 11cms to 12.5
Doing plenty of exercises such as bodybuilding or working on a building site does produce much more testosterone, strangely enough through the years I have noticed that many men who work on building sites seem to have hairy backs compared to other men who don't, I have a theory for the reason for that, they bend an awful lot and for some reason or another the high testosterone they have seems to make the hair grow on their back a bit more than normal. It does not work for all men but there must be some reason for that.
Where on earth are you all getting these stupid theories from? Penis size has nothing to do with hand or don't size what so ever!
Your body part size is made up from your genetics of both parents DNA that can go back generations in your family.