A real cat

This is mainly terza rima.Please see the link at the end

I
I

I saw a tabby cat upon my stairs
Gazing at me as I locked the door
Sitting calmly with a noble stare

I never thought I’d see a cat in here
I felt one lean against me in the night
A waking dream that brought delight not fear

I had no evidence such as cat bites
No scratches and no purring, no miaows
I did not wake and put on a night light

I left the cat flap open to allow
A little cat to enter & deter
The mice and rats with sharp teeth too endowed

Now this real cat has gone well polished hair
He had a coat of real and shining fur
His eyes are green and calm like winter seas
He hid away, he’ll come back should it please

https://www.poetryfoundation.org/learn/glossary-terms/terza-rima