Oh you know how it goes though. Someone will claim you are holding the rule out of frame and have set the perspective so as to make the 17 inches look like 17 inches. It's a battle not worth fighting.I now deign to offer photographic confirmation of my claim to seventeen inches, thus confuting all doubters, who must henceforth hide their faces in shame.
A very nice cock BUT it's NOT 17inches. It's bit, but definately not 17inches. I don't think it's a dodgy ruler you're using, just a dodgy tactic to measuring your cock.
How to measure your cock correctly:
1. Place your ruler ON TOP of your erect cock.
It's as simple as that! I'd say it's about 10inches.