Ashley Graham is known for her killer curves, so it would've been wrong if the plus-size model didn't show them off on National Bikini Day!

For the pseudo-holiday, the 28-year-old posted a photo of herself in a red swimsuit, sticking her tongue out for the camera.

The brunette beauty has had to defend herself against body-shamers in recent years, including fellow supermodel Cheryl Tiegs, who called Ashley unhealthy in February.

"I believe you can be healthy at every size, and if you take care of yourself, it doesn't matter how big you are, from a 2 to 22, you can be active and love the skin you're in," the Sports Illustrated cover girl previously said.

Scroll through the gallery for more of Ashley's sexiest photos to date!