Kim and Kourtney Kardashian show off abs at family dinner in Costa Rica


Where else can the Kardashians show off their collection of crop tops in January?

Kim and Kourtney Kardashian proudly flaunted their abs in tiny crop tops while heading to dinner during their family vacation in Costa Rica on Saturday night.

WATCH: Scott Disick Joins Ex Kourtney Kardashian on Family Vacay to Costa Rica

Kourtney paired a black-and-pink bra top with high-waisted pants for the evening outing, while Kim put her cleavage on display in a sexy black-and-white look.

Their mom, Kris Jenner, and her boyfriend, Corey Gamble weren't far behind as the whole family got together for their first night of the tropical trip.

WATCH: Kylie Jenner Flaunts Bikini Bod, Snuggles Up to Tyga in Costa Rica

Kourtney, 37, and Kim, 36, have clearly been putting in some major time at the gym, though it was their younger sister, Khloe Kardashian, who spearheaded a morning workout on Saturday.

Khloe, 32, and Kim got together for an intense exercise session in paradise, after which Kim explained that she never misses a day at the gym.

"I never Snapchat my workouts, just because... I don't know why. I'm just not Kourtney and Khloe," the mom of two shared on Snapchat. "But it's like, if I don't Snap it, then it's as if it never happened. But I work out every single day for over an hour."

See more from the family's winter getaway in the video above.

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Kim Kardashian's sexiest Instagrams of 2016
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You're so professional @steph_shep So responsible & thanks for never drinking on the job!
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Wait but first...
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๐ŸŽผ I'm going out tonight, it's going down....๐ŸŽผ
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New KIMOJI Merch available for just the weekend! Go to KimKardashianWest.com or my app to get it!
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Best trip ever! follow me on snap
Cuban vibes!!! Throwback to when we were in Cuba! Can't wait to watch tonight's episode with you guys! A new episode of KUWTK starts soon!
Tune into Keeping Up With The Kardashians tonight on E to see all the BYS at @fergie Milf $ video!
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All the BTS pics from the Milf $ video are on my app today!
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New obsession @sugarbearhair ๐Ÿป I have two of these a day as part of my hair care routine. They are delish! #sugarbearhair #sp
Obsessed with the new Kimoji phone case! There's not many left so get it now on my app or KimKardashianWest.com #KimojiMerch
GQ ๐Ÿ“ท Mert & Marcus
So many amazing pics from @GQ I can't wait for you to see them all! Thank you @jimmooregq for this amazing cover! ๐Ÿ“ท @mertalas @macpiggott
The cover of @GQ is here!!! This was seriously a dream come true!!!! ๐Ÿ“ท @mertalas @macpiggott
Let the transformation begin #BazaarIcons
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This diamond cuff earring though ๐Ÿ’Ž๐Ÿ’Ž๐Ÿ’Ž@lorraineschwartz
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Thank you Hakassan for having me! Thank you @olivier_rousteing & @balmain for dressing me! And thank you @makeupbyariel @cesar4styles for glamming me!
Cocktails with Khloe vibes today! ๐Ÿธ๐Ÿพ๐Ÿบ๐ŸนHair @justinemarjan Make Up @makeupbyariel
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