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Which Kardashian Is Showing Off Her Belly Button This Time?

We know, it could be any of them. But that's what makes this reveal all the more interesting.
/ Source: E!online

We know, it could be any of them. But that's what makes this reveal all the more interesting.

Kim Kardashian, as we all know, is not one to shy away from shedding clothing in the name of magazines. But this time around, maybe that toned belly belongs to Kourtney Kardashian, who's been nothing but confident as a hot mama? Or maybe even Khlo Kardashian Odom, who might've thought flashing her flatness would put those persistent pregnancy rumors behind her once and for all?

And let's not forget mama Kris Jenner, who is, alongside Kim, one of the new faces (and bods) of Skechers Shape-ups. Maybe she wanted a piece of her daughters' spotlights?

You'll never believe who it is...

MORE: Is Kim Kardashian heading to the big screen?

OK, maybe you will: it's Kim. Of course it's Kim. It's always Kim!

This time around, she's showing off her toned physique as part of her provocative (even by Kim's standards) new ad for Skechers. And--DVR alert--the steamy spot will be airing during this weekend's Super Bowl, where she'll be in some superstar company. But you don't need to wait that long to check it out, thanks to our sneak peek!

Sheesh. Is it hot in here, or is it just Kim?

VIDEO: Want to see more of Kim's hotness? Of course you do. Here's a peak of all those parts put together!