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Khloe Kardashian

X17online.com

Khloé Kardashian Odom and Kendall Jenner are glam girls who look great in high heels and pretty dresses, but you better believe they can pack a punch!

The sisters hit up Tarzana Boxing Gym on Monday, Oct. 14, looking ready to sweat in spandex and minimal makeup. And naturally, these two were in it to win it!

"Cant move my arms after that boxing class w/ @KendallJenner," Khloé, 29, tweeted. "Love/hate this feeling! We accomplished something. Our faces were SOOO red LOL."

Kendall, 17, retweeted her sis, adding that boxing is her "new fav thing!"

"I told you!!!" Khloé wrote back. "Boxing is the BEST!!! My favorite workout."

Khloé Instagrammed a picture of their hands, wrapped and ready to punch, writing, "My boxing buddy @kendalljenner and I went HAM." ("H.A.M", as you surely know, was the first single from Kanye West and Jay Z's Watch the Throne album in 2011. It stands for "Hard as a Motherf--ker."

Well, if Khloé and Kendall keep up boxing that hard, those pesky paparazzi better watch out!