In this page you can see two quite small penis pictures.
How do you think how long is this penis. To your surprise it is only 4.7 inches long when erect. This penis picture is from Markus, 25 year old male from Europe.
In this picture you can see a little bit bigger penis, about 5.1 inches when erect.
Picture #2 of the same object. Another angle.
This subject was only 22 years old. Anyway, at these ages penis is already grown and nothing will change in natural way. Only thing to do something about this is either date *smaller* women or enlarge penis by 1-2 inches.
Please, understand, enlargement is real but takes decent efforts and dedication.