KATE Middleton has been at war with her mother-in-law Camilla!

The pair apparently had a furious showdown after Camilla riled the beauty even further. Kate - who’s expecting her first child with Prince William - told Camilla, “You’ll never be allowed to see my baby!”

Meanwhile, Kate is set to break with tradition and have a baby shower thrown by her sister Pippa Middleton. “It was her sister Pippa’s idea,” a source tells OK! magazine.

“While it’s all going to be very relaxed and fun, Kate is hoping the queen will drop by because the two are remarkably close. They bonded big time and really enjoy each other’s company. Since this is going to be a first for royals, Kate would love the queen to be part of it.

“Pippa is in charge of decorations. There will certainly be none of the hard stuff.” –SS