I have a 26 lb. sheperd mix and I just adopted a 50 lb. lab. I also used to have a 112 lb. lab who passed away last summer. Bouncer adores ALL of them and they all loved him. The 9 year old sheperd mix (Brady) is normally old and grumpy with people and kids, but he'll play all day long with Bounce. So whoever says big dogs can't live in households with little dogs is wrong. lol Bounce's best friend at work is a Great Dane and a Pit Bull. lol So he definately loves BIG dogs.