I once had a 3/4 toy poodle that we called Licky Micky because she would lick all the time. When she was 3 weeks old her mom got hit by a car, so she had to learn to eat earlier than usual. The people that had her weren't taking good care of her so my cousin "rescued" her and gave her to us.
From night one, she got to sleep in our bed. She would not only lick people, she liked the silky edge of a blanket~ She would lick, and suck it. I don't know how many blanket edges were ruined because of her. One thing I do know is that it wakes you right up when you grab the edge of the blanket where she had been sucking. Ewwwwww... The vet said all the licking and sucking was due to her loosing her mom so young.