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Two, four, six, eight, who do we appreciate? 16 and Pregnant's Mackenzie and her bare-midriff cheerleading uniform!

As you and the rest of us anticipate meeting the new batch of teens gearing up for motherhood, E! News got a hold of an exclusive sneak peek from the upcoming season premiere, which airs Tuesday on MTV.

Mackenzie's sister Kayla came for a visit, and the two of them reminisced on the soon-to-be teen mom's former figure while looking at old cheerleading photos.

Can she still fit into that itty-bitty uniform? You betcha!

Surprisingly, everything zips and fits. The only difference is a huge baby bump that's been added to the mix.

But Mackenzie is determined to get back into those blue and white threads as soon as the baby's born, "with a six pack and no stretch marks."

We'll see how that goes.