Hi all,
I'm new to the board, and would like some help. We have a 4 1/2 year old Female GSD "Sadie" and just got a 9 1/2 week old GSD Male "Kasey". We introduced them on neutral ground, that went pretty well. It normally takes Sadie a week or so to get used to new dogs being around. She has put up with him pretty good so far. Kasey has a habit of licking her mouth, "which I think is normal?" but sometimes he bites her mouth also. Is this normal? She has shown teeth twice but never bitten him or snapped. Just teeth and a growl. He seems to want to dominate her, he goes to her water bowl when she is there, then she leaves. Tries to go through doors first, things like that. When we are gone he is in his crate. And she is left out. Here is the biggest question. Now that we have Kasey, Sadie is all over us. It seems that she has chosen to "forget" her commands most of the time. Climbs in laps without being invited, won't sit. Won't Down. Things like this. Normally she follows commands to a T. This may sound silly to those of you that are experts, but we want to do this right, so any and all help will be greatly appreciated.

Young dogs lick older dogs on the muzzle as a submissive sign - it's an cue for the mother dog to vomit up food for the puppy. So it's perfectly normal.
I doubt that the puppy is trying to dominant an older dog, you're just misreading dog behavior there.

And your older dogs behavior, as far as needing more attention from you when a new dog is introduced into the home, isn't unusual. Show her that she's still number one in your eyes, and let her and the pup determine their own pack ranking between themselves.

Thank you very much for your help.

I agree with Will. I now have a multi dog household again. My Sibe (neutered male)was just a little over a year old when I brought in my female GSD pup at 7 weeks old. He has been very good with her, teaching her manners etc... as she is getting older (5 months) there are a few more scuffles but I believe in letting the dogs work it out between themselves. My Sibe always gets everything first to keep the pack structure in tact, and I watch to make sure that they behave appropriatly with each other. If things would get a little to rough I of course would step in. They have got to the point now where they eat out of the same dish, sleep on the same bed etc...(I think I have to get a bigger bed <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" /> )and enjoy each others company. The only time there are issues is when they are both trying to get the attention of my young son, so I make the pup sit so that my sibe gets the attention first then I make him sit and the pup gets her turn. It's working out great <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" />