Scott Disick celebrated his Birthday with friends and longtime girlfriend Kourtney Kardashian in Las Vegas Saturday May 23, 2015 (Pictured: Scott Disick and Kourtney Kardashian – Photo credit: David Becker / WireImage).

Photo credit: David Becker / WireImage.
VIDEO: Scott Disick and Kourtney Kardashian at 1 OAK
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The Birthday festivities started at 3:30 PM at Bare Pool inside the Mirage Hotel & Casino where the group enjoyed the Las Vegas sun and snacks in their private cabana. After being presented a special birthday cake, Scott stopped to take photos and sign autographs for his fans at the pool.

Photo credit: David Becker / WireImage.
After his appearance at Bare and taking a break in their suite, Disick and friends enjoyed dinner at Stack Restaurant before his official Birthday celebration at 1 OAK.

Photo credit: David Becker / WireImage.
The group, which included friends like Courtenay Semel, was greeted by screaming fans lined up at 1 OAK.

Photo credit: David Becker / WireImage.
Scott hit the carpet at 12:15 AM wearing a custom black jacket and jeans. He was also joined on the red carpet by his partner and mother of three Kourtney Kardashian, who looked stunning in a gold and black short dress with a smoky eye and sleek hair finish.

Photo credit: David Becker / WireImage.
Once inside, the group settled into some dancing and socializing where Kourtney and her girlfriends sipped on champagne.

Photo credit: David Becker / WireImage.
Scott took several selfies with his surrounding fans and friends and looked happy with partner Kourtney Kardashian as they shared a few sweet moments inside the club.

Photo credit: David Becker / WireImage.
Later in the evening, Scott was presented with a four tier custom as the crowd sang Happy Birthday to their favorite 1 OAK resident. Other notable celebrities in attendance was NY Giants’ running back Shane Vereen and Comedian Joe Koi.

Photo credit: David Becker / WireImage.