The reality star stole the scene in the skimpy ensemble at the 2022 Baby2Baby Gala on Saturday night.
Along with some of her famous family, Kylie, 25, attended the event at the Pacific Design Center in West Hollywood, California.
Photos show the businesswoman for cosmetics posing on the emerald green carpet with her sister, Kim Kardashian, 42, who was wearing a form-fitting pink gown.
In her all-black ensemble, Kylie wore a minidress with an exposed back and a translucent skirt that revealed her bare legs.
Alongside her, Corey Gamble, 42, the motherager’s boyfriend, and Kris Jenner, 67, were also posing for pictures.
Fans were intrigued to Kylie’s revealing clothing, though, as she was seen in multiple images glancing over her shoulder to see the dress’ distinctive backing.
She complemented the look with a tight bun in her dark hair, a pair of black stiletto heels, and large earrings with crystals.
The Hulu personality’s posterior was also prominently featured in the photos, sparking criticism in an online thread.
Based on the images, one fan speculated that Kylie had her reported Brazilian butt life removed.
They paired a picture from the event with an earlier picture of Kylie that revealed a noticeably fuller rear.