Most of us consider our pets to be a part of our families. In fact, nearly half of all homes have a dog and about one-third have a cat.

That can mean a lot of cuddles and kisses, but is the old saying true? Is a pet's mouth really cleaner than our own?

Fred Miller is a proud cat dad who takes Willie on daily walks.

"He's 8, and he's a cat who was born to be outside," Miller said. "I'd like to just kiss him on the head like that because he's a sweet boy."

And when it comes to pets and their people, kisses often abound. With Clark the dachshund, his human Mikayla Kincart says she reluctantly allows kisses.

"I mean, I can't say no, obviously," Kincart said. "Like, if he snuck one right now I'd give him a couple, but then that's it."

And Freida, a mixed-breed, also gets kisses from dad R

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