Kourtney Kardashian Shares Enviable Workout Pic, Gives Us All #GymGoals

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Kourtney Kardashian is showing us how she got her killer body -- and it apparently involves hardcore push-ups!

The 36-year-old reality star posted a picture to Instagram on Thursday, with her strength on full display during a workout with her trainer. "He kills me," Kardashian captioned the snap.

WATCH: Kourtney Kardashian and Scott Disick Joke About Getting Back Together in Latest Snapchats

The mother-of-three has been exercising hard lately, and more than happy to share the results of her efforts on social media by posing for a number of sexy underwear selfies.

Hashtag: fitspo!

Things are also looking up for the oldest Kardashian sister and her ex, Scott Disick. While the two have not gotten back together, they are nevertheless on friendly enough terms to joke about it.

NEWS: Scott Disick Admits to Kourtney Kardashian Mistakes

Disick opens up about their relationship and the mistakes he's made with Kourtney on this week's I Am Cait episode. Check out more in the video below.