Kendra Makes Her "Booty Clap"

Kendra Makes Her "Booty Clap"

Work it, girl.

Kendra Wilkinson is dropping the last of her 50 pregnancy pounds with Us Weekly. She and her trainer Nicky Hollander are starring in a workout video called Taking It Off With Kendra, to be sold this spring. Get more details here.

PHOTOS: Look back on Kendra's bump days

How is her slimdown going? Wilkinson, 24, lets Us inside the Los Angeles home she shares with husband Hank Baskett to take a peek. "I want to get physical. I wanna hear your booty clap," the mom to 4-month-old Hank IV jokes before she launches into her sweat session.

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Hollander leads her through a set of crunches and instructs to strongly contract her abs.

"Contractions? No more of those!" jokes Wilkinson, who spent more than 24 hours in labor before undergoing a C-section.

VIDEO: Kendra reveals her stretch marks

The 5-foot-4 reality star (her series, Kendra, airs on E! Sundays at 10 p.m./ET) was a slim size 2 and 113 pounds before getting pregnant. In March, she told Us Weekly she weighed 140 pounds.

"Having a different body [has been] such a culture shock. I'm so used to being hot and fit," she said.