Kim Kardashian Says She’s Training for ‘Life’ During Intense Workout Session with Sister Khloé

Kim Kardashian is flaunting her fitness.

In a clip posted to her Instagram Story Thursday, the SKIMS founder, 43, put her back muscles on full display. Dressed in an all-black workout set, Kim can be seen doing ᴅᴇᴀᴅlifts as sister Khloé cheers her on from behind the camera.

“Workouts w @khloehardashian really do it for me 😝,” Kim wrote across the screen. As Khloé, 39, watches and records, she gasps and says, “Oh my god,” before repeating herself.

She then asks Kim, “What are you training for?” Kim quickly replies: “Life,” to which the Good American co-founder counters, “The Olympics.”

Khloé then pans the camera to show her older sister’s form from the other side, where she yells: “Holy f–k, you’re gonna f–k me up later!”

Throughout the clip, Kim never drops the weight as her trainer stands off to the side. This comes after Kim and Khloé shared pH๏τos of a 48-hour “last minute” ski trip to Utah with their kids.

“We took [a] trip to Deer Valley for New Year’s Eve!!” the mom of two shared on her social media account on Tuesday. “It was True’s first ever time on skis and we had the best time!”

In the pH๏τos, Khloé’s daughter True, 5 ½, is smiling alongside Kim’s four children in the snow. The Good American founder also included several snaps in an Instagram post of her with True and son Tatum, 17 months, dressed for the cold weather.

“We went with Kim, her four kids, our friend Natalie with her two kids and me and my two kids! So it was a big group,” Khloé wrote alongside pH๏τos and videos of her daughter learning to ski.

When it came to hitting the slopes, she said True “did so well,” adding, “I’m so proud of her for being so brave and she ended up loving it! Especially skiing and having fun in the snow with her cousins.”

Kim also gave a glimpse into the trip on her Instagram, showing images of her kids in their ski gear, roasted marshmallows and Christmas coffee mugs.