Penis Size

[alphus]

Hi everyone, before you answer i'd just like you to know that i'm not worried about penis size :L I was just wondering what the average penis size is for a fully grown adult, a 17 year old and an 18 year old? Answers for all three would be great cheers :) x

[Tonebone88]

Well adult average is a little less than 6". At 17 the average may be a little lower (5.5") and by 18, most people's penises are fully grown so its about 6" as well.

[alphus]

Okay cheers man! you know anything about average girth?? :)

[artist2894]

Average girth is 5 inches around for adults. I'm exactly 5 inches around right now, and i'm only 17.