Kim Kardashian posts precious photo of her baby Saint holding onto finger of his older sister North

Kim Kardashian West has shared the first photo of her newborn son Saint West on Saturday (January 2) showing his tiny hand wrapped around big sister North West's index finger.

''He's my best friend,'' the 35-year-old reality star wrote on Instagram as she captioned the adorable photo.

Kim Kardashian and Kanye West welcomed their son in December 5.