He might do it for a bet. Just like some friends might bet on who can pull off a crazy stunt, his friends could have bet him that he can't dress like a girl and act the part for a certain period.
Obviously, Bakugo would be one of the most affected. His relationship with Izuku has always been complex, and Izuku becoming a girl would surely change the dynamic between them. He might have to re - evaluate his feelings of rivalry and superiority. All Might would also be affected. As Izuku's mentor, he would need to adjust his training methods and support system to fit Izuku's new situation as a girl.
Izuku might become more self - conscious about her appearance in this fanfiction. Since she is a girl, she could face different beauty standards, which may influence her confidence in different ways compared to when she was male - presenting in the original story.
Perhaps in this fanfiction, Izuku as a girl might face different challenges in the hero world. Society could have different expectations of a female hero, which would add a new layer to her character development. She might have to deal with sexism while trying to prove herself as a capable hero, just like real - world female heroes often do.
Yes, there are quite a few. You can start by looking on fanfiction websites like Archive of Our Own. Just search for 'izuku is power girl' and you'll likely find some interesting reads. Some might focus on their unique friendship, while others could explore more romantic relationships between them.
One common theme is the discovery of new powers. Since Izuku is often associated with his journey to gain powers in his original story, when paired with Power Girl, there could be a focus on how he either adapts to her powers or discovers new ones through their connection. Another theme could be the culture shock. Power Girl comes from a different world in a sense, so Izuku dealing with that aspect is often explored.
Izuku herself is obviously a very popular character in this type of fanfiction. Since the whole story revolves around her transformation into a girl. Her friends like Ochaco Uraraka also tend to be popular as they often play important roles in Izuku's new life as a girl. Their relationship might change and develop in interesting ways.
One interesting aspect could be the unique character development of Izuku in this new context. As a magical girl, Izuku might display different traits like more femininity or a different kind of courage compared to his original character. It could also bring in new plot elements such as magical battles with a different set of villains. Maybe there are new friendships or rivalries formed within the magical girl world that add depth to the story.
Well, in some fanfictions of this kind, Izuku as a girl might discover new aspects of her Quirk. Since the physical change could potentially affect how she uses her power. Also, there could be a plotline where she has to deal with romantic interests in a new way. As a girl, she might attract different kinds of attention from her male classmates, and she has to navigate through those new feelings and situations.
One interesting fanfiction could be 'Izuku's Girlish Adventure'. In this, Izuku is forced to dress as a girl for a mission. He initially feels awkward but then uses it to his advantage to gather information. Another is 'The Girl - Izuku', where his transformation into a girl makes him see the world from a different perspective and he even befriends some characters who were previously unfriendly to him.