When you have an erection, if you feel around the undersides of you penis and "gooch" (area between balls and ass) you can feel it swollen with blood like the rest of your protruding erection. It all (seems) to be the same girth. How could you make the "exposed" section of all of this (your penis, basically) bigger but not the inside part that supports it? This is why I can't believe any penis enlargement thing works.