(My) Penis size A big penis better? Most people prefer large penises (maybe not colossal) and big balls, they are a sign of manhood and thus an evidence of good genes and fertility. Or so we are prone to think. Maybe it's an evolutionary thing and we believe that the bigger the better. But it's not that way. I earlier wrote that for testicles there's a critical lower limit for their size in order to be fertile but for the penis there isn't. The size of the penis doesn't affect on the amount of pleasure the male can feel and it often doesn't affect how the female experiences the intercourse. It's not the size, it's how you use it. Sufficient penis length for a successful intercourse is an inch or two or a few centimetres and sometimes females even feel that a smaller penis feels better if their vaginal opening is tight. Sometimes the thickness is a more important factor than the length. Very rarely the small size of the penis is a real problem wh