 " Hot to the Touch " was written and storyboarded by Cole Sanchez and Rebecca Sugar , from a story developed by series creator Pendleton Ward , Patrick McHale , and Kent Osborne . This was the first episode that Sugar and Sanchez worked on together ; Sugar 's previous partner Adam Muto served as the episode 's creative director , and also helped clean up the episode 's storyboards . Sugar was excited to get a chance to show how Flame Princess interacted in the Land of Ooo , because in " Incendium " , she was only shown inside of her lantern . The line about Finn wanting to play BMO with Flame Princess was based on Sanchez 's experiences with his high school girlfriend ; he reasoned that , since Finn was younger , his ultimate idea of love would be to sit next to his love interest and play video games . 
