Kourtney Kardashian has delighted fans with a brand new family photo featuring all four of her children - including her oldest son Mason, 15. The Kardashians star took to Instagram on Monday December 30 to share a selection of snapshots from the holidays,

Mason Disick made a rare social media appearance in a holiday family photo shared by his mom, Kourtney Kardashian, on Monday. The photo was taken at the annual Kardashian-Jenner Christmas Eve party, which was held at Kendall Jenner's home on December 24.

Despite being born into one of the most famous families in the world, Mason has increasingly chosen to step away from the limelight

Mason Disick, the eldest son of Kourtney Kardashian and Scott Disick, is growing up so fast. The Kardashians stars welcomed the little one on December 14, 2009 at Cedars Sinai in Los Angeles. He weighed in at seven pounds and 6 ounces,

The whole Barker/Kardashian crew slipped into their holiday finest last week for a Christmas photo shoot featuring Kourtney Kardashian and Travis Barker‘s kids, including the couple's 13-month-old son,

Kourtney Kardashian and Travis Barker share a new blended family photo from their Christmas Eve celebration that featured six of their children, including the couple's 13-month-old son Rocky Barker.

Travis' son Landon Barker, 21, and stepdaughter Atiana De La Hoya, 25—both of whom he shares with ex-wife Shanna Moakler—were also present in the family photo

Kourtney Kardashian has given fans a peek behind the curtain of the Kar-Jenner's intimate Christmas Eve celebrations with several new snaps shared online.