Khloe Kardashian Takes Over the 'Ellen' Show

Reality star sat in as host for Ellen DeGeneres and got help from her sister.

After bringing Kardashian on stage, DeGeneres turned to her and said, "While you're here, I just have a favor...The favor is if you could just take over the show for me today."

Fortunately, Kardashian, 31, was game.

"I've done Miami, I've done the Hamptons, I can take over Burbank," she said. "Let's do this!"

As usual, Kardashian got a little assistance from one of her sisters.

"Wait are you hosting the 'Ellen' show?" Kourtney inquired.

"Can you believe she left me here to do this?" Khloe responded. "I'm literally trembling with fear."

"You're so legit!" Kourtney quipped.

And since this was "Ellen," the two played a fill-in-the-blank game using their siblings.

Check out the video to find out who she voted best gift giver, best babysitter as well as the sexiest sister.