"I've been watching this show forever!" the gymnast told TVGuide.com during the filming of the episode. "To be on this show is amazing." So is the 16-year-old Team Damon or Team Stefan? You'll have to watch the video below to find out.
Of course, by the end of this week's episode, don't be surprised if Douglas' appearance isn't the only thing people are talking about, as most people will be focused on one very special scene. Perhaps this has something to do with it?
Watch this week's Vampire Diaries Bite below: