The housecat took one look at her and stood up on its hind legs. As Karyn and Jon watched in astonishment, its spine spraightened out, and its paws separated, forming clawed fingers and a thumb. Finally, it grew to human size...
As they watched, Sarah fell to her knees. They watched her hands formed into paws...her form shrinking and her eyes losing the intelligence behind them. Her head shrunk more than the rest of her...the brain inside of it going with it. Before long, a four-legged deevolved Sarah with a collar and a leash was being walked by Kiki like a dog...
"Sarah," Kiki purred in a sing-song tone, "on the grass like a good girl..."
Jon and Karyn gaped.