Looking good, JWOWW!

The MTV alum, whose real name is Jenni Farley, showed off her incredible weight loss transformation in this new Instagram video.

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Jenni left little to the imagination in her black bra and skintight gray leggings for the photo op — and it sure seems like that Flat Tummy Tea is working.

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You can't even tell she's had two children!

Check out JWOWW's transformation through the years in the gallery.