Im 20 years old and not very comfortable with my penis. I'm about 5 inches in lenght and 4 inches in girth. My girlfriend tells me she happy with my size, but i think she wouldn't mind if I was bigger. Just wondering if anyone has any real success stories or advice for me?... Id like to add 1-2 inches in lenght and maybe about an inch or two to my girth. Any advice would be great!