LOS ANGELES, Aug. 28 (UPI) -- Rob Kardashian jokingly blamed milkshakes for his weight gain Thursday on Instagram.
The 28-year-old reality star shared a throwback photo of himself slurping one of the sweet drinks at the Sugar Factory in Las Vegas in 2011. Kardashian has since gained 100 pounds, as revealed by mom Kris Jenner on Keeping Up with the Kardashians in April.