Maroney says she wasn't hacked.
McKayla Maroney, an Olympic gymnast who starred for the United States at the 2012 London Games, posted a racy Instagram video over the weekend.
The video, which can be seen below, has been watched more than 800,000 times on her Instagram page.
"Another world premiere," she wrote.
Maroney addressed the video in another post after many believed her account was hacked.
"i didn't get hacked. unfollow if u need to. all love," she wrote.
Maroney, 21, won the silver medal at the 2012 Summer Olympics for the vault and the gold medal in the team competition.
She has more than 1 million followers on Instagram.