Ryan Gosling

What's cuter than Ryan Gosling? His dog George!

Pets have become a celebrity's favorite accessory. From puppies to ponies, stars aren't afraid to show off their furry friends. Check out our gallery to find out which former Girls Next Door star uses her ferret as a floor mop, how Blake Lively has turned her pooch into a prankster, or just enjoy some cute overload as Hollywood's hottest stars cuddle up to their cutest co-stars yet.