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Kourtney Kardashian, Kendall Jenner

TRB/EKNY/FAMEFLYNET PICTURES

Kourtney Kardashian and Scott Disick are both enjoying some fun in the sun, separately, more than a month after their breakup.

The 36-year-old Keeping Up With the Kardashians star is on vacation in St. Barts with their children, Mason Disick, 5, Penelope Disick, 3, and 8-month-old Reign Disick, as well as Khloe Kardashian, 31, pregnantKim Kardashian, 34, her daughter North West, 2,Kendall Jenner, 19, and Kylie Jenner, who also brought along Tyga, 25.

On Thursday, Kourtney and Kendall were spotted together on the beach, rocking bikinis. Kourtney, who wore a strappy gray, peach and white two-piece bandage-style swimsuit, snapped a pic of her sister, dressed in a dark paisley halter bikini, with her iPhone.

Since the breakup, Kourtney has shown off a slew of hot looks in public and has been going out with her sisters and friends. She posted on her Instagram page on Thursday a pic of herself sporting a gold, halter, retro-style one-piece swimsuit.

??

A photo posted by Kourtney Kardashian (@kourtneykardash) on

Scott, 32, is spending time with Joe Francis in Mexico, where the Girls Gone Wild founder and Kardashian family friend owns the Casa Aramara resort. Scott and Kourtney vacationed there together in May.

Great picture of @kourtneykardash and @letthelordbewithyou from last weekend @casaaramara ??

A photo posted by Joe Francis (@realjoefrancis) on

Scott posted on his Instagram page a photo of the two with another friend inside a pool.

"Little boy time in mex," he wrote.

He also shared a pic of himself lying on the wing of a small plane.

Had to get the last bit of sun in

A photo posted by Scott Disick (@letthelordbewithyou) on

Kourtney broke up with Scott, her longtime partner, over the Fourth of July holiday after he went on a month-long partying bender abroad and photos showed him getting cozy with another woman. Scott, who has battled substance abuse in the past, has not commented.

Scott moved out of the home they shared near Los Angeles after the split and has since been spotted out with their kids several times. He has continued his regular club appearances in recent weeks and is set to make an appearance at the LEX nightclub in Reno, Nev., on Friday.

In recent weeks, Kourtney and Scott have both posted cryptic messages and photos on Instagram. A source close to him told E! News earlier this month that he "knows he screwed up" and is "trying to get his life together and that includes getting his family back." The source also said that "at the very least, he wants to be friends again" with Kardashian.