Overview

• Mason Disick's first Instagram post features him in a casual outfit on a balcony.
• Aunts Kim and Khloé Kardashian expressed their surprise and emotions in the comments.
• Mason's follow-up posts include photos with siblings Penelope and Reign, and friends.
• Kris Jenner has promised Mason a car if he stays away from drugs and alcohol until age 16.
• Mason's Instagram account quickly gained over 115,000 followers.