I had a dog when I was younger that used to lick my feet. It did tickle some.
I do have a great dog foot licking experience to share. I know I've posted this somewhere else in the forum, but I'll repost it here, because heaven only knows where it is. According to my best friend, many years ago, his mom, who supposedly had and still has mega ticklish feet, had accidently spilled some cereal on the floor of the family's kitchen one morning. Supposedly, as it was told to me, the family dog came over, and began licking the cereal from this woman's toes with his long tounge, causing her to erupt with hysterical laughter. The dog wouldnt stop, and she kept laughing, until finally my friend's father managed to clean up the cereal from the floor, and apparently his wife's toes, and scurry the dog away from her feet. That might be the best animal foot licking experience I've heard in my life, causing real hysterical laughter of a woman.
Anyhow, just thought I'd share.
Mitch