On last night's Kourtney & Khloe Take Miami, Kim—who normally never drinks—decided to party it up with her sisters. Like true sorority sisters, the Kardashian girls held their sister's hair back while she puked. (NSFW, after the jump.)

I think it's incredibly unfair that Kim looks like this when hung over (especially being hung over for the first time.)

And I just couldn't resist making a gif of Khloe slapping Kourtney's ass.