He likes to groom people. With his tongue. Specifically, he likes to groom Dean.

Actually, let me rephrase that. He MUST groom Dean. It’s usually at night; as soon as Dean sits down, George will run over there and get going on his head, licking and licking and licking. When we go to bed at night, George gets really agitated if Dean is not in bed ASAP, and will run back and forth on the bed until he gets in there. Once he’s lying down, George takes the opportunity to (you guessed it) groom the living daylights out of him.

We don’t know why George fixates on Dean for this, but we all know that it’s freaking hilarious. Observe, the cat in action!