Thankful 'DWTS' Winner Donny Osmond Jokes with Less-Victorious Sis

Donny Osmond wasted no time in taunting his Dancing with the Stars runner-up sister, Marie, with his recent victory.

The day after he won this season’s disco ball trophy, he was back on stage with Marie for their brother-sister act at The Flamingo casino in Las Vegas. reports Donny brought the prize onstage for the show, where it perched atop a piano for the duration of Wednesday’s performance.

"Do I even let her touch it?" Donny asked the Flamingo crowd. They responded with laughter and cheers.

"Could my brother be more obnoxious? I told him that he better win, but let's see him do it in 6-inch heels,” said Marie, who famously fainted and fell to the floor during her 2007 run on the show. “But I am extremely proud of him. He worked so hard for it."

Donny, who is 51 years old, admitted that the grueling Dancing with the Stars rehearsals and performances were not without their pitfalls.

"Everything hurts," Donny said. "There are muscles I didn't know I had that hurt."

Donny beat out celebrity dancers Kelly Osbourne and Mya to take home the trophy Tuesday night.

Read what Kelly Osbourne had to say about her loss.

Do you think Donny Osmond was the best dancer this season? Chime in below!

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