WTF HAPPENED TO KIM KARDASHIAN'S ASS?

One of the most famous derrieres in America just got a little smaller.
Kim Kardashian, who recently lost 6 lbs., flaunted her new slender figure at New York Fashion Week.

Wearing a simple black dress and Christian Louboutin heels, the reality TV star showed off her skinnier look backstage at the Jill Stuart, Badgley Mischka and Baby Phat shows while mingling with stars like Destiny's Child singer Kelly Rowland and Kimora Lee Simmons, the Daily Mail reports.

Kardashian attributes her recent weight loss to Quick Trim, a diet product that she endorses despite the fact that it has yet to receive approval from the Food and Drug Administration.

Side effects of Quick Trim reportedly include diarrhea, irregular heartbeat, insomnia, vomiting, headache, dizziness and raised blood pressure.

But these potential issues don't seem to affect the 28-year-old, who's hawking the product with a heavy hand.

After posting bikini pictures on her Twitter page, she tweeted, "I lost my last 6lbs fast & toned up! Loving Quick Trim...Quick Trim does a body good!"