There are three blonde guys stranded on an island. Suddenly a fairy appears and offers to grant each one of them a wish.
The first blonde asks to be intelligent. Instantly, he is turned into a brown haired man and swims off the island.
The next one asks to be even more intelligent than the previous one, so instantly he is turned into a black haired man. The black haired man builds a boat and sails off the island.
The third blonde asks to become even more intelligent than the previous two. The fairy turns him into a woman, and she walks across the bridge.