...they will get on? I had a dog 5 months old a yorkie cross, a month later my sister got a jack russel cross. She works nights twice a week so I look after him. At the first meeting our dogs got on and loved each other, they still play now. Today I just got a 16 week old American Bulldog whos soft and loves playing but my dog and sisters doesnt like him. Hes wicked to them but they are a bit nasty. Will it change? could they end up friends?