And if you weren't already jealous of the Kardashian/Jenner Thailand vacation, you will be now! 

Kendall Jenner posted one awesome video of her zip-lining through a Thailand jungle via Instagram on Thursday -- where she's giving her sister Kim Kardashian a run for her money in the booty department.

Check out the video above to see Kendall's awesome excursion! 

The 18-year-old captioned the candid clip, "this was fun."  

Judging from the video, it definitely seemed like the aspiring model was a little bit nervous. But, after sis Kylie Jenner told her that her "ass looks good," Kendall gave it a go.

Click "Launch Gallery" below to see even more photos from their exotic family vacation, including some beach bod shots of all the Kardashian women! 


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