Underwear affair! Victoria's Secret model Sara Sampaio bares all in see-through Cannes look

Suns out, buns out!

Sara Sampaio hit the red carpet for the screening of "The Killing of A Sacred Deer" at Cannes Film Festival on Monday rocking the oh-so-popular see-through trend, but she definitely took it a step further. The Portuguese beauty intentionally flashed cameras by wearing a white thong underneath the gown that exposed her butt cheeks.

Sara, 25, was a bit more modest with the front of her dress, which featured ruffles around the chest area and subtle floral detailing, but the back of her dress was a truly different story. It was clear Sara's perky posterior was the true star of the red carpet!

And if you really care about the rest of her look, the Victoria's Secret model rocked a red lip that matched the red carpet, kept her brunette tresses in a low bun and iced herself with some massive jewels.

Sara's provocative number is the latest in her long list of show-stopping styles at Cannes. The model has been hitting one red carpet after another since the movie festival began last week. At the screening of "120 Beats Per Minute," Sampaio dazzled in a sparkly lavender-hued jumpsuit with a ornate neckline, and at the festival's opening gala she was a vision in a deep red ball gown.

A number of other stars hit the red carpet for the screening of "The Killing of A Sacred Deer," including Nicole Kidman and Eva Longoria.

Check out all the fun from Day 6 of Cannes Film Festival in the slideshow below!