Poor, embarrassed little guy! Khloé Kardashian shared some videos on her Instagram Story showing that she and her sister Kourtney Kardashian got their fitness on at the gym recently, and Kourtney’s son Mason Disick made an appearance. But in true mom style, his 39-year-old mama couldn’t help but horrify her kid a little bit with some dance moves. Check out Mason’s hilarious reaction in the video above, and don’t forget to subscribe to our YouTube channel!