52150179 Reality star Kim Kardashian and her kids North and Saint West enjoy a day poolside while on vacation in Puerto Vallarta, Mexico on August 18, 2016. Kim was rocking a very revealing bikini while with her kids. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876

Keeping Up With the Kardashians star Kim Kardashian was photographed with her two children – daughter North, 3, and son Saint, 8 months – on Thursday (August 18).

Joined by a friend, the trio had some fun in the sun while on vacation in Puerto Vallarta, Mexico. The group are staying at Casa Aramara, the lavish private residence owned by Girls Gone Wild founder Joe Francis.

Both rocking Acadia bikinis, the reality star, 35, and her daughter doted on Saint while enjoying a day at the pool.

Last week, Kim underwent laser skin tightening with cosmetic dermatologist Dr. Simon Ourian.

After Kim Snapchatted from the procedure, Ourian Instagrammed the video.

“Thank you, #kimkardashianwest, for posting this video on Snapchat earlier today. #Skintightening #nonsurgicalskintightening,” read the caption.

Thank you, #kimkardashianwest, for posting this video on Snapchat earlier today. #Skintightening #nonsurgicalskintightening

A video posted by Dr. Simon Ourian – Epione (@simonourianmd1) on Aug 10, 2016 at 10:47pm PDT

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52150170 Reality star Kim Kardashian and her kids North and Saint West enjoy a day poolside while on vacation in Puerto Vallarta, Mexico on August 18, 2016. Kim was rocking a very revealing bikini while with her kids. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876
52150179 Reality star Kim Kardashian and her kids North and Saint West enjoy a day poolside while on vacation in Puerto Vallarta, Mexico on August 18, 2016. Kim was rocking a very revealing bikini while with her kids. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876
52150181 Reality star Kim Kardashian and her kids North and Saint West enjoy a day poolside while on vacation in Puerto Vallarta, Mexico on August 18, 2016. Kim was rocking a very revealing bikini while with her kids. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876
52150185 Reality star Kim Kardashian and her kids North and Saint West enjoy a day poolside while on vacation in Puerto Vallarta, Mexico on August 18, 2016. Kim was rocking a very revealing bikini while with her kids. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876
52150195 Reality star Kim Kardashian and her kids North and Saint West enjoy a day poolside while on vacation in Puerto Vallarta, Mexico on August 18, 2016. Kim was rocking a very revealing bikini while with her kids. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876

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