Okay, I’m gonna let you in on a little secret. Cats believe that all other organisms are cats. Once you realize that, a lot of cat behavior starts to make sense, so why does your cat lick you? Because it thinks it’s grooming you.
So when your cat licks you, he’s thinking ‘I love you, gigantic hairless cat. And to show you, I will lick you.’
-John Green, answering the question ”Why does my cat lick me?”