One of the most fun parts of watching the boys practice Cat Fu is watching them stalk each other. One of them will crouch very low to the ground and sort of wiggle his hindquarters as a warmup before launching himself at his brother.
So imagine my surprise when I saw Emily do the pre-launch wiggle on the bed, then pounce on Whitey as he walked past on the floor. No growling, no hissing, just what seemed to be a playful pounce.
I think Whitey was even more surprised than I was, actually. They wrestled for a second or two then went their separate ways.