Very well said Beargizmo..
And he is sooo rite..
to the best of my knowledge you cannot...there are excercizes (you'll have to google to find them) pills, etc but I don't think they work...the best thing to do is learn how to use what you have to please your woman..most women do not want extra large penises anyway...they want a man who knows how to please them with what they have.
Jim