Studies (not the kind of research job I'd want) have shown that a shorter penis increases nearly twice as a much as a longer penis does when erect. So, if you.
We simplify the science (84 university studies) on how to get hard & maintain in a bend or curve in the penis that can make erections painful.
You've been getting erections since puberty, but have you ever stopped to think about the reason why? Understanding the physiological process of getting an.