What is are phineas and ferb step brothers?

Phineas and Ferb are step brothers who are the main characters of the animated television series of the same name. Phineas Flynn is the older brother who is inventive, creative, and always looking to have fun. Ferb Fletcher is his silent, but intelligent younger step brother who is also very creative.

The show follows the two step brothers as they come up with amazing adventures and projects during their summer vacations. They often build elaborate and outlandish inventions, causing chaos and excitement in their neighborhood.

Despite their differences in personality, Phineas and Ferb have a close and strong bond as step brothers. They work together on their projects, support each other, and always have each other's backs.

Overall, Phineas and Ferb's relationship as step brothers is a central theme of the show and showcases the importance of teamwork, creativity, and friendship.