"When you want to succeed as bad as you want to breathe, then you'll be successful"
http://www.youtube.com/watch?v=lsSC2vx7zFQ
Mine have a foot fetish (licks feet). Tho, belly is kinda gross O.o`. Just don´t let it go between those 2, if you know what I mean.
Perhaps complex, exotic smells -- including disgusting ones -- are interesting to dogs with their heavily smell-focused brains, a little like visual art can be captivating to humans, who of course are far more primarily visual-based in sensory focus.
A bellybutton has smell and taste to a dog.
And that most animals tend to be able to tell when the owner is sick just from the owner acting different, plus the fact that dogs can smell the infection, it's just like that.
What color is your dog? If he's all white, I'm going to come steal him.
My dog (Rhodesian Ridgeback/Blackmouth Curr... so kind of tall) stands up on her feet, and puts her paws on my shoulders and licks my face.