Prep a 2 1/2 year old for their future mermaid tail

I can't help myself.  Her questions were too cute.  

And as Einstien says 'Imagination is far more important than knowledge.  For knowledge is limited to all we know and understand, while imagination embraces the entire world, and all there ever will be to know and understand.'

day 18 of 21 answers in 21ish days

my 2 and a half year old niece asks:::::::what about my mermaid butt?  my mermaid tail?  my mermaid leg?