Kourtney Kardashian and Scott Disick’s eldest son, Mason, is all grown up! Take a look back at the teenager as he celebrates his 16th birthday.

The former couple's eldest son, Mason, turned 16, and their younger son, Reign, turned 11 on Dec. 14 Kourtney Kardashian Barker and Scott Disick's sons Mason and Reign celebrated their joint birthday ...

Kourtney Kardashian’s kids with Scott Disick grew up largely in the public eye. And her sons, Mason and Reign Disick, continue to spark particular interest as they get older. As the eldest, Mason ...

Mason Dash Disick (born December 14, 2009) is Kourtney & Scott's son and Penelope & Reign's big brother. He was born in 'Keeping Up with the Kardashians' Season 4 finale, making it his first ...