Teeny green bikini! Kendall Jenner is helping sister Kylie celebrate her 18th birthday in Punta Mita, Mexico, and she’s pulling out all the swimwear stops while doing it.
After the sisters rocked matching white two-pieces on Wednesday, Aug. 12, Kendall, 19, switched up her color palette and showcased her model figure in a forest-green bandeau bathing suit on Thursday, Aug. 13. 
The Estee Lauder ambassador accessorized her dark green bathing suit with a straw cowboy hat, leather tassel necklace, and the yellow and orange “Chacha” crop top from Endless Summer.
Kendall, Kylie, friends Hailey Baldwin and Pia Mia, and Kylie’s boyfriend Tyga—and all of their colorful swimwear—have been spending the past week celebrating the youngest Kardashian’s 18th birthday at Joe Francis’ luxury property, Casa Amara, in Punta Mita, Mexico. The group hung out on a luxe yacht on Thursday, where they put all other summer vacations to shame. “My lil babies,” Kylie captioned a shot of part of the group near the ocean while riding jet skis.
What do you think of Kendall’s green bikini style? Tweet with @UsWeekly using the hashtag #stylebyUs!
