There are three blonde women stranded on an island.

 Suddenly a fairy appears and offers to grant each one of them one wish. The
 first blonde asks to be intelligent. Instantly, she is turned into a brown
 haired woman and she swims off the island.

 The next one asks to be even more intelligent than the previous one, so
 instantly she is turned into a black haired woman. The black haired woman
 builds a boat and sails off the island.

 The third blonde asks to become even more intelligent than the previous two.

 The fairy turns her into a man, and he walks across the bridge...