Kim Kardashian Shares Cute Photo of 'Frozen' Princesses North and Penelope

— -- Kim Kardashian had an early treat for her 50 million Instagram followers Thursday. The "Keeping Up With the Kardashians" star shared a photo of her daughter, North, and sister Kourtney's little girl, Penelope Disick, dressed up for Halloween as Anna and Elsa from the movie "Frozen."

“Elsa & Anna in the house! #HalloweenVibes,” Kardashian, 35, captioned a shot of 2-year-old North and 3-year-old cousin Penelope getting ready to descend a set of stairs in costume.

This is actually North and Penelope's second set of Halloween costumes.

Kourtney Kardashian last Friday posed for an Instagram photo with her three kids -- Penelope, 5-year-old Mason and 10-month-old Reign -- all dressed as superheroes, and North in a unicorn costume.