Kourtney Kardashian puts her fit physique on display in sizzling bikini snaps

Kourtney Kardashian stunned fans as she put on her incredibly fit physique on display.

In one of her sizzling pictures, Travis Barker's sweetheart can be seen laying on a day bed in black string bikini in Poosh spa day throwbacks.

The 42-year-old Kardashian offered guests novelty wellness treats and activities at home over the weekend and proved to be a huge success.

The Keeping Up With The Kardashians star is looking back at the retreat fondly and giving her 144 million followers more glimpses into the A-list soirée.

Kim's sister took to Instagram Wednesday to share more outtakes from the September 25 Poolside with Poosh spa day.

Kourtney put her fit figures on full display as she sits on a wooden lounge chair with a coconut drink in her hand.