Kris Jenner was one very proud grandmother as she reminisced about her granddaughter Stormi on 1 February as the little girl marked her third birthday.MORE: All the photos inside Kylie Jenner's daughter Stormi's birthday partyThe famous momager took to Instagram to share a sweet video of Stormi taking part in the viral patience test that went viral last year.In the footage, Stormi proved just how patient she was as she waited for her mum Kylie Jenner to return to the room before taking a sweet