How do you measure your penis? -
measure your girlfriend-s mouth first
At the base of the shaft, start the CLOTH tape rule. Bend your erect penis down to where it-s about 120 degrees, (4 O-clock), and measure to the tip of the glands. Not down the penis but -as the bird flys-. If you follow the surface with the tape, you-ll get a slightly longer and incorrect reading.
WHY bend the erect penis downward? When you measure-measure your usable length and during sex-you will bend it up and down depending on the position and your ability to move around. SO-a straight up penis will loose you probaly about a half inche in length.
Then there is your girth. find your thickest point on your erect penis and measure it-s circumference.
L- x G- is a pretty good measurement for bragging rights.