Just because someone is a lot bigger than you doesn't mean you can't be friends. This is no more true among humans as it is with other animals. Case in point: big dogs playing with little kittens.
Check out these adorable kittens playing with their much bigger and incredibly patient dog friends. With all that energy, kittens are tough to keep up with, but these pups manage just fine. More importantly though, the dogs are very careful to be gentle with the kittens and not play too rough, because, after all, they're only babies.