Paris Hilton just seriously broke the ‘sister code’ by revealing the sex of her sister Nicky’s unborn baby!

Nicky and her husband James Rothschild got Married in Kensington Palace, London in July 2015 and announced their pregnancy just six-months later in January 2016.

The baby is due over the coming months, but Paris accidentally blurted out the sex of Nicky’s baby during an interview with US Weekly, saying “I’m so excited for the baby. She’s going to be such a beautiful little girl, and I can’t wait to meet her.”

Congrats Nicky and James! We hope you’re not too hard on Paris.

Images from celebmafia.com