[Bastianboy]

We're looking into getting another pup here pretty soon. They did the breeding about 4 weeks ago and I am really excited about it. Dad is an incredible service dog, confirmation dog, agility and obedience dog who I have seen in action several times and he never stops amazing me. Mom is also into conformation, agility, obedience and herding. We would be getting a little girl to do all of the activities with as long as she enjoys it and a buddy for Bastian as well. I have grown up with dogs, but always just one.

My question is, how do I keep Bastian from feeling (and acting) like he has to protect her. The reason that I'm asking is that an Australian shephard in our puppy class got a "little sister" about 3 months ago. She sometimes comes to our class to be around other dogs and people and today she was sitting by us and Bastian was loving on her (he LOVES babies) and Roper (the older Australian shephard) was doing okay until my husband came over and was petting the baby. Then he got angry and growled and even put his teeth on Brian. Obviously this was not okay, so he got a good healthy correction, but Brian couldn't even pet him after that. He'd start growling and bearing his teeth. His owner had mentioned when Bastian was loving her that Roper didn't like other dogs around her, but never people. I don't want Bastian to even think this is an option. Roper and Bastian have been buddies since they were about 6 months old. Does this always happen when there is an older dog with a pup??? One thing for sure is that they will be seperated, meaning they don't both always get to go places together. Will that help?? Thank you!!!