It's a viscous circle...
Some guy with a 6 inch penis decided to call it 8 inches > now the woman thinks that is 8 inches > she meets a 7 incher and calls it a 9 incher > now, this guy has a great idea, he starts calling it a 9 incher.
so on and so forth...
Somewhere along the way, a genuine 7 incher is called average, and now he has to promote himself as a 9 incher too...
Some guy with a 6 inch penis decided to call it 8 inches > now the woman thinks that is 8 inches > she meets a 7 incher and calls it a 9 incher > now, this guy has a great idea, he starts calling it a 9 incher.
so on and so forth...
Somewhere along the way, a genuine 7 incher is called average, and now he has to promote himself as a 9 incher too...