Her ass is just ridiculously disproportionate to her body. Hell, to anybody's body for that matter. Even on her damn show, she just looks stupid in her tight jeans or yoga pants. Don't get me wrong I like a nice (guys) ass as much as the next homie, but her's is just so big it's not even right for her body any more.
Oh and for those of you who think her ass is looking good now, I ask you to have a peek at it in 20 years. That thing ain't going to be gettin any smaller, or shapelier, as she gets older, that much I can assure you.