Prince Gumball is the gender-swapped version of Princess Bubblegum. He was originally created after the gender-swapped characters were introduced in series of drawings and comics, and then they were featured in the season 3 episode "Fionna and Cake," in which it is revealed that the characters only exist in fanfiction written by the Ice King. Like Princess Bubblegum, Prince Gumball also has his own loyal companion, Lord Monochromicorn. Just as Princess Bubblegum can understand Lady's Korean, Prince Gumball can understand Lord Monochromicorn's Morse code. Prince Gumball has shown romantic feelings for Fionna, but that was actually the Ice Queen in disguise. However, the real Prince Gumball also shows feelings for Fionna and had actually asked her out on a date.