'Dancing's' Derek Hough 'Punk'd' sister Julianne

MTV

Derek Hough gets down and dirty in an attempt to prank his sister Julianne.

By Ree Hines

Three-time "Dancing With the Stars" champ Derek Hough employed some fancy footwork to trick his sister, "Dancing"-pro-turned-movie-star Julianne Hough, for the latest episode of "Punk'd."

With "Twilight's" Kellan Lutz acting as the mastermind behind the gag, Derek drove his sister down a remote road and stepped out of the car to remove a roadblock. That's when the hoofer performed a well-choreographed fall into an adjacent mud pit that left his sister shocked and concerned.

While Derek faked pain and an inability to reach out, Julianne grew anxious. But just then a not-so-nice "pool guy" pulled up and offered some reluctant assistance. First he helped by telling her that it was sewage her brother was slopping around in. Then he helped by falling in alongside him.

Before Julianne had a chance to process the double trouble, Kellen raced out yelling "You just got Punk'd!"

"Punk'd" airs Thursday nights at 10 p.m. ET on MTV.

Did Derek take it a little too far by making his sister worry about his safety, or was the prank all in good fun? Share your thoughts on our Facebook page.

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