Kelly Bensimon flashes rear end in scandalous, sheer dress

Kelly Bensimon wasn't afraid to show off her pert posterior!

The former model, 48, gave fans quite a show as she walked into the Zac Posen fashion show during New York Fashion Week on Monday in a completely sheer dress that she teamed with a set of thong underwear.

Bensimon's sparkling black gown was floor-length and cinched in at the waist, but below the waist is where things got interesting. The sequined bottom was completely sheer showing off her bare bottom.

The sheer trend has been all over runways, red carpets and events this year with celebrities embracing the flashy style, but Bensimon's look took it to the next level with the barely-there undies. Most celebs rock the trend with full-bottomed knickers.

PHOTOS: See the front and back of the dress

It's definitely a scene stealer. Bensimon wasn't the only star in the front row at the Zac Posen show. She was joined by model, Coco Rocha and Hannah Bronfman. Posen also later posed with Bensimon after the show wrapped and he definitely seemed like a fan of her daring style.

Check out all the celebs who have tried out the flashy, sheer trend.