Kourtney Kardashian celebrated the Fourth of July weekend with a familiar face, her rumoured former fling Justin Bieber. The 37-year-old spent the weekend in Miami with her three children, Penelope, Mason and Reign, but ran into Justin while partying on Sunday night at nightclub Story.

Kourtney Kardashian Kourtney Kardashian has been spotted with Justin Bieber again.

E! News reports that Kourtney and Justin were helping their mutual friend David Grutman celebrate his 36th birthday. Justin was reportedly spotted ‘leading Kourtney into the DJ booth and the two later chatted at her table.’

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Kourtney spent the rest of the weekend hanging out on the beach and on Grutman's boat, the SS Groot with her children. A source told People magazine "Kourtney is having a fun holiday weekend with her kids. She keeps enjoying the beach and the pool. She has been hanging out with friends, including Justin Bieber and Larsa Pippen.”

Last year Kourtney and Justin were rumoured to be enjoying a fling, months after she split from Scott Disick. In December a source told US Weekly: “Justin bragged to friends recently that he has been hooking up with Kourtney Kardashian.”

In January Kourtney was asked about her relationship with Justin during her appearance on ‘The Ellen DeGeneres Show’, but said the two were “just friends.” Then in March Kourtney attended his concert in Los Angeles.

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Meanwhile Scott celebrated the Fourth of July with Kourtney’s mother Kris Jenner and her friend Faye Resnick. Disick even shared a photo of himself relaxing in the sun with the two women on Instagram captioned, “They don't call me the cougar tamer for no reason.”