Little Plastic Junkie

I think it’s quite fantastic,
That my kitty cat licks plastic.
Drop a grocery bag, she’ll grab it.
And indulge her plastic habit.
I’m not sure what to make of it.
She’ll lick until away you take it.
Produce bags, they’re her favorite.
But is this normal cat behavior?
Should I be worried? Asking why?
Does it taste good? Make her high?
She swears she’s not addicted.
Can stop at any time she wanted.
But the sad truth is, my kitty,
Is a little plastic junkie.