Kourtney Kardashian is nailing her summer style.

After sporting a series of sexy outfits in Cannes, France, last month, the mother of three jetted off to Miami, Florida, where she was spotted rocking a skimpy, high-waisted white swimsuit while on the beach with family and friends.

Kardashian’s pal Larsa Pippen joined her in the Sunshine State, as well as her children, 7-year-old Mason, 4-year-old Penelope and 2-year-old Reign. One person noticeably absent from the beach vacation was Kardashian’s rumored boyfriend, Younes Bendjima.

Disick later made an appearance at Vegas’ 1 OAK nightclub.

As for Kardashian’s relationship with the father of her children, a source close to Disick, 34, told ET that there is “no malice” between the exes. “They’re not together. Kourtney is not losing any sleep over Scott’s behavior,” the source said. “The endless amount of blonde women coming through the door isn’t anything new. None of it is Kourtney’s business.”

Disick was recently spotted with 18-year-old model Sofia Richie, but a source told ET that the two are “just friends.” Here’s more on that rumored romance