Not at all; the average size of an adult male's penis is 6 inches erect. And at 13 years old, you still have a lot of growing left to do.
yeah erect: Hell Yeah non-erect: Hell no
Yes
Yes, a penis that is three and a half inches when erect is pretty small...sorry.
Normal is considered to be between 4" and 6" erect, so you're right in the middle of normal.
no
No, 27 inches is abnormally small for a matured male penis.
I'd invest in extenZe, personally.
well it all depends because I am 14 and my penis is 8 inches erect and 6 1/2 not erect but i am 5"8 so it could be because u just hit puberty
only if the 4 inch penis is erect, any erect penis that releases sperm up a female v**** can and most likely will...
Way too small.
Small I'm afraid the average size is 5.5 inches non erect and 7 inches erect.
Whether you are 15 or 51, a four inch penis is a healthy size. If your penis is less than 2 inches when erect, then you may have a reason to worry.