The fabulous pile of paper!

The kittens take after Portia and her love of crinkly paper! That's Smaller Grey Kitten going crazy - notice the brief tail chase too (they do that A LOT). If you listen carefully you might even hear Cartman in the background. Smaller Grey Kitten was standing with his feet up on the screen watching South Park but I didn't get the camera in time and couldn't force him to replicate it.