Kim Kardashian has revealed the sex of her third child to be a girl on The Ellen DeGeneres Show. The couple is expecting their third child via surrogate.

The soon-to-be mother of three told host Ellen DeGeneres that her 4-year-old daughter, North had taken to calling the unborn child, “Baby Sister.”

“My daughter thinks she’s tricky. We had a baby shower over the weekend, and I thought, ‘You know, I really do want to have a baby shower because I want [North] to feel that something’s coming and for her to really understand it.’ ”

She continued, “So, people brought toys and gifts and [North] was opening them all up the next day. And she goes, ‘Mom, since Baby Sister’s not here, I think I need all of her toys in my room and play with them and make sure they’re all okay for Baby Sister.'”

When DeGeneres asked if North was excited about having a sister, the KKW Beauty mogul said, “She is really excited about that,” and added that when she was pregnant with 1-year-old son Saint, the process “was a little trickier.”