HI all. It has been so long since I have posted. All my dogs are great and I am well. My husband has just won a long battle with cancer, so that had taken over my life for some time. However, here is my question. I have a new Fawn Doberman puppy (from my birthday litter, finally a Fawn!). I have 7 other Dobermans age 9 to 16 weeks (Fin). They have never done this. When Fin is ready to go to sleep, he curls up on a ball and puts his mouth at the point where is back leg attaches to his body and he sucks on his body. Now I have checked him repeatedly for marks, cuts. There are none. It just gets really wet and yucky, but he is happy and goes right to sleep. Now my biggest Dobie, Otto, does this with a blanket or a couch arm (all used furniture LOL!). But never on himself. Should I be worried? He is happy and quite normal otherwise! Thanks and glad to be back!