What do you think about me licking my dog?
Why did you lick your dog?
He enjoys it when I do
I understand you want to make your pet happy, which is a good thing.  However, doing so by licking him is unhygienic and could get you sick!
Well I always brush him after so I'm always clean.
That doesn't make sense. Brushing doesn't get rid of germs. It's wrong to do this but if you must then at least give him a bath.