Mom explained that this is a kiss and it's meant to show affection. Both of my humans frequently press their mouths to my face and make smacking sounds with their lips. I would really prefer soft pats on the head.
In other news, mom claims that dad never lets me "be a dog" since I'm always in his lap. Mom says I should play and frolic with the other dogs. Hmph. I may not be completely human, but I'm queen of this castle and enjoy all the perks my royalty affords me.