Some cats are very good at teaching puppies base commands like "down," "sit," and "piss off." Other cats seem like they'd be great squeak toys. I fall somewhere in between those two extremes, and that is why I look like I've been performing modern dance in a barbed wire pen full of glass shards.
That is also why I warn you: teach your puppies how not to kill you before they even know they can think of it. Another thing to remember is that when your puppy is sniffing the rear ends of your cats, do not interfere because the cats will respond as only they can, and most of all, do not pick up anything that has claws.
The Puppy and Ninja Twins, of course, are all getting along wonderfully.
However, I think I have tetanus.