As the originator of the Frito Feet thread in the dog forum, allow me to clarify. It is possible, although not necessary, to kiss a dog/cats' feet in order to perceive the essence of "Frito!" Some people do; some don't. It's a personal choice!

P.S. In cat's, I referred to the same smell. However, the feline mutation is referred to as "Popcorn tootsies!"