Kendall Jenner pranked her sister Kim Kardashian on the premiere of Khloe Kardashian’s Kocktails with Khloe on Wednesday night, telling her she’s pregnant.

Jenner acted like she was telling the new mom of two this news first, before anyone else in their family. However, she didn’t get the response she was likely expecting.

"I didn't know who to tell first," Jenner told her. "If I told mom, she would freak out."

But Kardashian took the opportunity to vent about her own frustrations with motherhood, instead of supporting her 20 year old sister or offering advice.

"I’m not the one to talk to, because I've had the worst experience and I'm so fresh off the worst birthing experience,” she said. “Today is not the day, because I'd be a little more negative, cause I'm on like 1 hour of sleep."

As guests Kym Whitley, Brandi Glanville and The Talk co-host Aisha Tyler listened in, Kardashian continued to vent about motherhood.

"I'll bring my 30 kids and you can babysit for two seconds to see how you feel," she offered.


Watch the full episode here.