"Two Texans were seated at the end..." joke

Two Texans were seated at the end of a bar when a gorgeous young lady sits
down at the other end and orders a martini. Stunned by her beauty, the two
guys stare at her for a while, debating whether to approach her, when all
of a sudden, she begins to cough, clutch her throat, and begin to turn blue
(obviously in serious respiratory distress). One said to the other, "That
there gal is having a bad time!"
The other agreed and said, "Think we should go help?" "You bet," said the
first, and with that he ran over and said, "Can you speak?" She shook her
head no. He then asked, "Can you breathe?" She again shook her head no.
With that, he pulled up her skirt, pulled down
the back of her panties and licked her on the butt. She was so shocked,
she coughed up the obstruction and began to breathe, with great relief.
At which point, the first Texan looked at his friend and exclaimed, "I
guess that hind lick maneuver really does work.