Kourtney Kardashian has once again set her fans' pulses racing by stripping off to just a skimpy bikini.

The reality star recently returned home from her summer escapade in Egypt with boyfriend Younes Bendjima. Still, in the holiday hangover, she shared a sexy image of herself on Instagram on Thursday (17 August). In the photo, she can be seen standing in the middle of a desert exposing her under boobs in a black bikini top and a matching string underwear.

The picture wowed her fans as many hailed her as the "sexiest mum in the world". The image has since got more than 600,000 likes. "Still Egypt," she captioned another of her desert bikini photo.

Many of her followers hailed The 38-year-old reality star's beauty even after having three babies and branded her as the most beautiful Kardashian sister. "She's a dream," one fan commented on the image. "The most beautiful of them all," added another. "Never been so beautiful than now," a third one wrote.

The Keeping Up With The Kardashian star was standing bare foot in the desert and some of her followers noticed the same. "All that money and you can't fix your toes," an Instagram user advised the mother of three. "She fine but she got big foot feet," added another.

Apart from the solo bikini picture, Kourtney shared images of herself with boyfriend Younes as they casually sat on their luxury yacht. The KUWTK star is currently dating the 23-year-old model and according to Us Weekly, their relationship is getting serious. "Younes and Kourtney are great. The relationship is still developing, and it's getting more serious," a source told the magazine.

Kourtney was recently mom shamed for not taking her children Mason, 7, Penelope, 5, and Reign, 2 for her luxurious Egyptian getaway with many branding her as a 'horrible mother.' She shares the three children with her ex, Scott Disick.