Cat's Best Friend Is This Particular Koi

Timo the cat is an internet celebrity, what with his cat hammock, masterful Christmas tree decorating style, and adorable yawning.
But he hasn't forgotten the people who loved him before he was famous. For 3 years, his best friend has been a koi. Oh, he's polite to all of the koi in the pond. But the grey one always gets special attention.

(Video Link)