The 38-year-old flashed the flesh as she posed nude in an exotic photoshoot during her family trip to Costa Rica earlier this year.
In the tantalising Instagram picture, the mother-of-three sat on a rock surrounded by greenery and showed off her pert posterior as she leant forward.
The older sister of Kim Kardashian ensured she drew plenty of attention to her ample bust as she flaunted major sideboob in the sizzling snap.
Oozing sex appeal, the reality star turned her head towards the camera and pulled a seductive look whilst her long raven locks cascaded to one side.
Captioning the post “Mother nature,” the bronzed beauty was inundated with compliments from her 57 million Instagram followers.
One person wrote: “Damn three kids, wow looking great kourt!”
“You are so hot and beautiful,” gushed another whilst a third added: “Beautiful and Sexy, but very Elegant! Happy Mother’s Day Beautiful!”
Her jaw-dropping snaps comes almost one moth after the stunner revealed her incredible “birthday suit” as she marked her 38th birthday.
Yesterday, Kourtney celebrated Mother’s Day and posted a sweet tribute to her three children Mason, eight, Penelope, four, and Reign, two.
Alongside the candid shot, she wrote: “I thank God every morning for these three little angels who changed my heart forever.
“I feel incredibly blessed to be their mommy. Happy Mother’s Day to all mothers raising our future.”