Kim Kardashian Spotted Rocking No Makeup After Working Out With Pal Blac ...

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Kim Kardashian and Blac Chyna can't slack on their fitness if they want to continue taking selfies like these.

The two bootylicious babes were spotted attending Barry's Bootcamp in West Hollywood earlier this morning. Kim rocked a fresh face with an all-black workout outfit that accentuated her famous curves, while Tyga's girlfriend added a pop of color with a her purple workout shoes (aside from her platinum blond hair, of course).

The E! star has been adamant about getting her pre-baby body back after giving birth to North West.

PHOTOS: Celebrity fitness stars

The 33-year-old new mom has credited the majority of her post-baby weight loss to the Atkins diet, saying the program helped her get her body back, but she puts in a lot of work at the gym, too.

In fact, even joined his ladylove for a workout at Barry's Bootcamp once, attending the 6:30 a.m. Full Body class in Sherman Oaks-though Yeezy did cause the pair to be a tad bit late when he had to take a call outside the studio.

And while Kim hit the treadmill at full speed and gave her all for the interval weight training, Kanye told the instructor he wasn't feeling well and kept things easy with a steady jog.

Hey, it's not easy to look that good.

Don't forget to watch Keeping Up With the Kardashians this Sunday at 9 p.m., only on E! PHOTOS: Take a look at Kim Kardashian's 33 best looks! RELATED VIDEOS: