Kourtney Kardashian's baby is due any day.
"She's 9.5 months pregnant," Kim Kardashian told "Extra" while promoting FAO Schwarz's Muppet Whatnot Toy Workshop in NYC Wednesday. "She's just at home, waiting and ready to have the baby."
Added Khloe Kardashian, "She could literally give birth at any second. So our cell phones are on us at all times!"
Kim said she's picking up a few gifts for Kourtney's baby boy at FAO Schwarz.
"I think we are going to do a little bit of baby shopping because we have no idea what to get Kourt's baby that will be here by Christmas," she said. "So we're hoping to find some of Kourtney's baby's first toys."
Celebrating Christmas is a big deal at the Kardashian household, Khloe explained. She can't wait to share her family's traditions with her new husband.
"I'm excited to show Lamar Christmas with the Kardashians. It's really crazy," she told "Extra." "My mom has Santa coming and elves around the house, and like, balloon figurines. It's so over the top, but it's what we love."