Kourtney Kardashian delighted fans with a new photo of son Reign this week.

The 36-year-old reality star shared a cute snapshot of herself with the six-month-old infant and two friends Thursday on Instagram, writing, "Three women and a baby."

Kardashian and longtime partner Scott Disick have been together since 2006, and welcomed Reign in December 2014. The couple are also parents to five-year-old son Mason and two-year-old daughter Penelope.

Kardashian posted a picture of herself with Penelope at Disneyland on Tuesday, and shared a slim post-baby selfie last week. The reality star has been following an exercise regime in order to lose weight.

Kardashian and her family currently star on E! series Keeping Up with the Kardashians, which will return from mid-season break in the fall. The reality star's younger sister, Kim Kardashian, is pregnant with her second child, a son, by husband Kanye West.