Wellll..I know ( as most of you know) that my Bella is not a purebred Yorkie.
However, the 'other half' of her is Maltese.
I have seen her look more like a cross between a Piranha and an Alligator though...and I was wondering if this was normal?
Brussels and her will lock jaws all of a sudden, and bite at each other's mouths.
Neither one of them whimpers or whines or anything, but MAN it looks like it HURTS. I know I can't take Bella biting me just a tiny bit (those puppy teeth are nasty-sharp) so how can our 5lb, 9 ounce dog take it so easily without making an injured noise?
Bella is 2.6 lbs (weighed yesterday), and I swear sometimes when she opens her mouth it looks like a Pac-Man Piranha (pac-man-with teeth). It's HUGE and her nose is all wrinkled like she's really ticked off...and her eyes kinda roll around so more white shows and she looks like an evil little thing.

BUT...then she steps back and wags her tail and dances around like she's all happy, and will even run up and give Brussels kisses...WEIRD looking stuff!
Is this normal behavior between dogs? Keep in mind we're not used to having multiple dogs, it's just been Brussels and us for almost 12 years.
Is this normal dog playing or is this something I should be stopping or stepping in on? Neither dog is acting like they're in pain, but the noises they make are downright scary.