There is no question of natural hostility with these two sweeties, and they also go very well together in terms of color! How and where the two got to know each other would of course be interesting. Just as they noticed that they actually get along quite well.
The rodent was probably raised in a human household and grew up with the cat. It can hardly be explained otherwise. The squirrel's favorite game definitely seems to be climbing around on his animal buddy and doing somersaults. We wish you a lot of fun!