So Kaia Gerber is a superhero, correct? The model, 18, revealed on Instagram that she has already gotten her cast removed, less than two weeks after telling fans that she broke her arm! Kaia posted a triumphant pic to the social media platform on May 27, which shows her striking a pose in a parking lot, sans arm cast. Visibly thrilled, she’s dressed in all white while raising the giant cast above her head.