Not backing down, and apparently plagued by autocorrect as we all are, Khloe -- who is hosting the family's Thanksgiving -- quipped: "You are going down on things giving! The cook-off is real my friend!!!!!"
Accepting the challenge, Kylie tweeted: "I'll see you in the kitchen lil girl."
They've been saying I'm pregnant for one year now... One year. Let's get it together lol
"You're not gonna say, 'Hey, so what are you doing this weekend?' and have her say, 'Having a slumber party at my girlfriend's,' or 'Going to prom.' That's not what Kylie does," the 31-year-old Keeping Up With the Kardashians star said. "Kylie is taking business meetings and bought her first house, or she’s going on a private plane with Karl Lagerfeld to take a meeting. That's not even what people do in their 30s. It's a rare circumstance, so let’s treat this as a special case."