A man in a pub asked his friend what was his favourite sexual
position.
"Oh, definitely the rodeo position." Came the reply.
"How so?" asked the first man.
"You see, with this position, you enter your wife from the rear,
doggie style. When she's getting very exicited, you whisper into
her ear. "Shiok ah? your sister likes this postion too" and you
hang onto her for you dear life for as long as possible, just like
a cowboy in the rodeo." 
