Can you turn into a mermaid in the Sims 3 wii?

I heard that if you catch a mermaid while fishing if you let her go she'll turn you into a mermaid.

You have to be skill ten in fishing and it is best if you have the angler trait because you gain levels faster.

This may be for one of the other sims games but this is the one i've heard about the most so i hope it helps! :D