This bloke walks into an outback bar with a big crocodile and sets it on the bar. He asks the barkeep for a beer, and opens the crocks mouth, sticks his cock in its mouth and drinks his beer.
The bartender is amazed.
The bloke pulls his cock out, and asks the bartender, "Do you want to try it?"
"No," says the bartender, "I don't think I can hold my mouth open that long."