A Mexican and a cowboy both entered a pharmacy one day and asked the pharmacist if he had anything to make their dicks grow bigger. The pharmacist said, "Yes, I have these pills. How many would you like?"
The Mexican replied, "I will only take two because I don't want it to be too big to carry!"
The Cowboy then said, "Give me four-I want it big-REALLY BIG!"
So the pharmacist gave them the pills and asked them to return in two weeks time to show him the results of the enlargement.
Two weeks later the Mexican arrived back in the shop and said, "My rope is so long you have too walk really straight or it falls out!"
A few seconds later the Cowboy entered with his huge cock in one hand swinging it about and yelling, "Yee Haw!"