The 25-year-old artist hit the beach in Malibu, California on Sunday, flaunting her figure in a revealing black two-piece as she ran through the sand.
Scout soaked up the rays and enjoyed the temperate waters of the Pacific Ocean, but made sure to shade her face from the sun with a black ball cap.
Scout, the daughter of Demi and actor Bruce Willis, was spotted palling around on the beach with a friend during her sunny outing.
She also shared a selfie from the sand, showing her beach buddy in the background. Scout wrote in the caption, "Good afternoon, life even more compete. Veggie burgers, graphic novels, best friends."
While Scout showed a lot of skin on the beach, it wasn't nearly as much as she showed back in 2014 when the #FreeTheNipple advocate protested Instagram's anti-nudity policy by walking around topless in New York.
Check out more from Scout's revealing protest in the video below.