Fans came to the comment section in droves, thanking Kourtney for her transparency.
"Thank you so much for not editing out your stretch marks!! 💓👏🏼", wrote one fan.
"I love when we get to see stretch marks..normal bodies," wrote another.
Another fan gushed: "Oh wow not air brushed. You can actually see her stretch marks and this is what a real body looks like! I love it."
The proud mum-of-three later responded to a fan, writing: “I love my little stripes.”
Kourtney is currently on vacation in Italy with her three kids, Mason, 9, Penelope, 7, and Reign, 4 which she shares with ex-partner Scott Disick.
We love them to, Kourt!