"Three Female Swimmers" joke

There was a competition to cross the English channel doing
only the breaststroke, and the three women who entered the race
were a brunette, a redhead and a blonde.
After approximately 14 hours, the brunette staggered up on the
shore and was declared the fastest swimmer. About 40 minutes
later, the redhead crawled up on the shore and was declared
the second place finisher.
Nearly 4 hours after that, the blonde finally came ashore and
promptly collapsed in front of the worried onlookers. When the
reporters asked why it took her so long to complete the race,
she replied, "I don't want to sound like I'm a sore loser, but
I think those two other girls were using their arms."