Khloe Kardashian premiered her new E! show, Kocktails With Khloe, earlier this week, and she slammed sister Kim Kardashian West in the process.

Inviting model sister Kendall Jenner as one of her first guests on the show, Khloe pranked Kim with a phone call.

When Khloe Kardashian and Kendall Jenner told Kim she’d been pranked, Khloe closed the call with a rude slam.

These ladies cannot control themselves. Best prank ever. @KimKardashian @khloekardashian @KendallJenner #CryingLaughing #KocktailsWithKhloe

— FYI TV (@FYI) January 21, 2016

“Keeks, I love you, and when you lose a few L-Bs, I want you to come on Kocktails With Khloe,” she said, using Kim Kardashian’s nickname. “I love you!”

Guests were taken aback by Khloe Kardashian’s rudeness, but Khloe simply blew it off, saying, “She’s in hiding until she loses a few L-Bs!”

.@KhloeKardashian lost weight by cutting this one thing out of her diet: https://t.co/Lx6ewkic7F pic.twitter.com/iolLhCCM6I

— Glamour (@glamourmag) January 22, 2016

Kim Kardashian West only gave birth to her second child with Kanye West, a son named Saint, a month ago. How much weight does the Keeping Up With the Kardashians star think her sister can lose in a month’s time?

Rumors have it Kocktails With Khloe received mixed reviews for its premiere episode. Might it have something to do with Khloe Kardashian’s behavior as a host?

No way!!! Did @khloekardashian just read her sister @KimKardashian. Loose some lbs! To be on #KocktailsWithKhloe ?????

— Nicholas Caprio (@ncaprio) January 21, 2016

Did you see the premiere of Kocktails With Khloe?

Does Khloe Kardashian have a pass or a fail on her hands with this new show?