"Twilight" star Kellan Lutz took over "Punk'd" (Thu., 10 p.m. ET on MTV) for the week, and immediately targeted some of his Hollywood friends. He enlisted three-time "Dancing with the Stars" champ Derek Hough to help prank his sister Julianne. The set-up was pretty simple, with Derek getting out of the car to move an obstruction, and then pretending to fall into a quagmire and get stuck.
Julianne certainly fell for it, though she didn't get into the muck to try and help her brother. In fact, she stayed remarkably clean throughout, considering how messy the stunt was.
Lutz also took target on Ashley Rickards ("Awkward."), who was tricked into thinking she'd caused a hose to spill chemicals all over an innocent passerby. She even got down and dirty, trying to help him throw up. As for his third prank, it kind of fell apart when Aimee Teegarden recognized her stage dad encounter as a "bad episode" of "Punk'd."
Series creator and original host Ashton Kutcher returns to show how it's done on the one-hour season finale of "Punk'd," next Thursday at 10 p.m. ET on MTV.