Another common theme could be cultural diversity and how it influences their relationship. Maybe they face external pressures but stick together through it all. Also, family and friendship connections often play a role in shaping their story.
For a workout cartoon to be funny and appealing, it often needs unique art styles, witty dialogues, and unexpected plot twists. Also, if it can make people relate to the struggles of working out while making them laugh, that's a big plus.
The Telltale Batman comic's storyline is action-packed. It showcases Batman's struggle to protect Gotham City while also uncovering deep-seated conspiracies and facing his own inner demons.