Little jokester! Saint West sure loves Rob Kardashian and it shows. Kim Kardashian recorded the three-year-old fooling around with a mask of his uncle’s face, and it’s both hilarious and cute. “I’m uncle Robbie, what’s your name?” he said on the KUWTK star’s Instagram Story on Wednesday, May 15. His mama played along and replied, “What?” moments before Saint revealed his face and burst out laughing. “It’s you?! I thought you were Uncle Robbie! You tricked me!” Kim added. Aw, we love these two. Watch the video above to see the prank, and don’t forget to subscribe to our YouTube channel for more celebrity news.