Originally Posted by
ilovepets10
Hmmm, sounds to me like happy puppy behavior lol. We had a kitten that used to suckle on her own tummy from being weaned too early. It was darling, and as she got older, she eventually stopped. I want to add in, also, that dogs can keep some puppy traits up to three years old. Ultimately, this is just what I have observed, if the behavior seems damaging in any way I would suggest seeking the advice of a professional - however, it seems harmless to me, just a puppy with his security blanket :)