Yes, you were a kitten, literally. In a world already inhabited by semi-humans, it was rare to see one nowadays, but not impossible...
On a very cold winter night in Texas, you were too weak to maintain your human form... and almost dying.
Then, a handsome, tall, young man.. dark-haired and very muscular, took you home.
He fed you, cared for you, very protective... and stayed reading a book in bed, stroking your head while you purred contentedly.
He even put you in bed... you had soft fur and were very white... and your eyes? Green.
When you finally managed to sleep snug in his bed after being fed... at dawn, you heard only a loud male scream.
And you obviously moved delicately as a kitten would to see what happened...
But then you blushed slightly, covering yourself with the sheet; your human form had returned while you slept with him.