Kendall Jenner is trying to pull a fast one on Kim Kardashian.
On the premiere episode of "Kocktails With Khloe," the fashion model prank calls the new mom and pretends to be pregnant.
"I was calling you because I wanted to tell you something. I haven't told anyone yet. I feel like you could help figure out what I should do," the 20-year-old tells her older sis, while fellow guests Brandi Glanville, Kym Whitley, Aisha Tyler and host Khloe Kardashian listen in.
"Oh god, what now," Kim asks. "I am pregnant," Kendall declares.
After the reality star explains that she was coming to Kim for support and doesn't want to "freak out" mom Kris Jenner, Mrs. Kanye West doesn't hold back.
"I'm not the one to talk to," the mother-of-two says. "I have the worst experience. I'm so fresh off the worst birthing experience. Today is not the day ... I'm on one hour of sleep because North was up all night and I was feeding him every two seconds. Literally my day has been so crazy. I've had no sleep and I want to die."
After Kendall pretends to start crying, Kim starts to feel bad about her reaction.
Check out the clip to see Kim's response when Khloe reveals that it's all a joke!
Don't miss the full episode of "Kocktails With Khloe" tonight at 10pm on FYI.