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Duchess Of Cambridge, Kate Middleton, Lupo

Mark Cuthbert/UK Press via Getty Images

Kate Middleton and Prince William's oldest baby—no, not Prince George—needs to be prepared for when a little princess or another little prince shows up at the palace.

Yes, Lupo, the Duke and Duchess of Cambridge's beloved 3-year-old cocker spaniel, will soon have to adjust to having not one, but two babies in his home! Don't worry, though, E! News recently caught up with Dog Whisperer Cesar Millan, who was celebrating season two of his Nat Geo Wild series Cesar 911 at the Skybar in L.A.'s Mondrian Hotel. Mr. Millan, who has a true talent when it comes to all things canine, exclusively shared some useful, easy-to-follow doggie-to-baby introduction tips that will help things run smoothly for all!

First, Millan said it's important that Kate, William and all others in the royal household remain calm. Oftentimes, he noted, when a dog gets introduced to a baby everyone gets "all freaked out."

"One of the things they don't want is they don't want the dog to feel less than the baby," said Millan. "If you are nervous or you feel guilty, you are going to relay those emotions."

Millan, who says he trains humans and rehabilitates dogs, said it's usually the people who create the drama—not the pup!  As he explained it, if the parents remain calm, the dog will know exactly what to do.

Millan also noted that it's important to keep a distance between the new baby and the dog. In the royals' case, this should be done in the beginning so that Lupo respects the partition and this energy. And while most people like to bring a baby to the dog, that's the wrong approach.

So what should Will and Kate do? Ask Lupo to give the baby some distance, because distance is respect. They can do this through body language and changing their energy—just putting up a palm and giving Lupo a stern look in the eyes. "They don't know what you are saying," said Millan, "what they know is the energy you are projecting."

Repetition is key, so it's only once the dog gives you the consistency of respect do you invite him in. "You want to create this physical contact to create friendship, but the best friendship is the one that has trust and respect, not just affection," said Millan. "Trust and respect first, then affection."

"Those are the steps people skip because they want the baby and the dog to get along really fast," explained Millan. "You don't teach a dog by humanizing him. Loving a dog like a human is not a problem, but trying to reach a dog like a human becomes a problem."

Love all things royal? Tune in this Sunday for a brand-new episode of The Royals at 10 p.m. on E!