I have two pitt bulls, one is two years old and the orother will be one next month. They ate both girls. The youngest keeps licking the older dogs mouth. I've heard this is just a normal greeting or it could be the youngest showing her willingness to be submissive. The problem is the older dog does not like it. She growls at the youngest every time. How do I get her to stop licking her mouth? I've tried separating them but the older one keeps jumping the fence. The youngest also humps the older one is that normal and is there a way to stop that? It seems to be causing them to get aggressive. Please help.