You don´t seem to know much about why dogs are trying to "lick the interior of your mouth"...I recommend fetching a book on puppy behaviour and learning that this is NOT, I repeat, NOT a form of human kissing at all. And I´d rather be an "anthropophobic asshole" than someone who desperately tries to anthropomorphise animals in a truly unhealthy and not at all hidden way.
PS: If "kissing" is natural behaviour of dogs, how it comes you don´t see dogs kiss each other then?