Last year, numerous reports had linked Kourtney Kardashian and Justin Bieber, some even suggesting that the two could have hooked up. But on Sunday (3 July) the Keeping Up With the Kardashians star and the Sorry hit-maker once again fuelled romance rumours after reuniting at a nightclub in Miami, Florida.

The reality TV star and the 22-year-old met at mutual friend David Grutman's 36th birthday party at his Story nightclub, following which Bieber hosted a party at the club, after performing in the city earlier in the day.

According to E! Online, during the birthday bash, the singer was spotted leading the 37-year-old into the DJ booth. The two were later spotted having a conversation at Kourtney's table.

"Justin walked Kourtney in and they talked closely at her table and had a laugh," a source said, adding that there was a "playful energy" between the two celebrities.

The mother-of-three was dressed in a tight leather mini dress paired with thigh-high lace-up boots. She attended the event with friends Larsa Pippen and Jonathan Cheban.

Romance rumours regarding the two sparked only months after Kourtney split from husband Scott Disick in July 2015, but she has maintained that Bieber is just friend.

"We're friends," she said with a smile, during an appearance on The Ellen DeGeneres Show in January this year. "You're smiling as if that maybe it's beyond friends," host Ellen DeGeneres said, to which Kourtney replied: "I've been smiling this whole time since I've been sitting here."

Justin Bieber
Kourtney Kardashian and Justin Bieber reunited at mutual friend David Grutman's 36th birthday party at his STORY nightclub REUTERS/Danny Moloshok