The 24-year-old reality star and makeup mogul didn’t disclose the new baby’s name.
The child was apparently born Wednesday, as the Instagram post was captioned with the date “2/2/22” and a black-and-white photo of the newborn apparently holding hands with his big sister, Stormi, who turned four on Feb. 1.
Jenner also posted flowers sent to her and Scott, 30, from notable family members like Kim Kardashian-West.
Jenner and Scott have been dating since 2017.