"Saint asked me to take a pic of him and his brother this morning," the mum-of-four captioned the photo.
This is the second photo the beauty mogul has shared of her two boys, who already look to be as thick as thieves.
In June, the Keeping Up With The Kardashian's star shared a black and white snapshot of Saint gently cradling newborn baby Psalm's face in his palms.
“My boys 🖤🖤," the KKW Beauty founder wrote.
Kim Kardashian and husband Kanye West have four children together, North, 6, Saint, 3, Chicago, 1, and Psalm, 2 months.