Penis size does not matter!!!!! I know this for a fact. every girl I was ever with said the same thing. "Its OK, size dosnt matter."
Anyway, I'm good on girth, 6" erect. (I'm a grower) But, I was only able to measure the length into the average range (5.8" to 6.2") once. (must of been a full moon or some type of strong gravitational pull that day) And, I threw away the ruler after that.
On a side note. I have often thought of getting a tattoo of a ruler on penis. And, making the scale wrong, so it would read that I had 7.5" penis.