"Well I wanna be a..." joke

There were once 3 blondes on an island, but they couldn't find a way off. But while searching, one of them tripped over what happened to be a magic lamp. Dusting it off, the genie came out.

"I will grant you each a wish," he said.

"Why not," thought the blondes. "It's worth a try."

"I want to be the world's best swimmer" one said, "so can swim off of the island". She then jumped in to the ocean and swam away.

"I want to be a bird" one said, and flew away immediately.

The 3rd, and last one thought for a while. "I want to be a man. Maybe that would help." She was instantly transformed into a man, then walked across the bridge to the mainland, where she joined her two friends.