Sense Sonnet - Pumper

Pahstrel - LP Zoo

Wanted - a good looking old girl,
So I came to Lincoln Park Zoo,
An Amur tigress adding curl.
Instead of one, there  now are two
Tigresses - Pahstrel, that is me.
And then there's Molly - if she's out,
Then I will be inside to see.
Or vice versa. It's all about
You getting some tiger time sure,
If you visit the habitat.
You can see me or can see her,
If you be in or be out at.

How will yo know I am Pahstrel?
Could ask my paws, but they won't tell.