PHOTOS: Kylie Jenner strips down to her underwear to promote her birthday collection makeup line

Beauty mogul, Kylie Jenner who is set to become the world's youngest self-made billionaire stripped down to her underwear to promote her latest Birthday Collection line of products on Monday.

The shoot which took place just three weeks after she gave birth to her daughter Stormi Webster, shows the 20-year-old rocking various risque outfits to advertise the products.

Many of the makeup products reportedly sold out within the first hour.

In one of the photos she posted, which shows her posing with four other ladies, she wrote: 'PARTY TIME WITH MY GIRLS BECAUSE THE BIRTHDAY COLLECTION LAUNCHES IN 1 HOUR!'.

The reality TV star was on the cover of Forbes Magazine‘s August 2018 issue as the magazine focuses on the 60 richest, most successful women entrepreneurs in America.

The combined net worth of the top 60 self-made women is now a record $71 billion, 15% more than in 2017. These women make their money in everything from fashion and retail to biotech to trucking to venture capital.

Kylie Jenner was the youngest on the list as well as a newcomer.

According to Forbes, Kylie is currently worth an estimated $900million thanks to her cosmetics line, an empire she has built in just three short years.

See more photos below.