Well, it could start with some magical or scientific accident that causes Robin to be transformed. Maybe he was messing around with a new gadget in the Batcave that had unforeseen side effects. Then, the story could explore how Robin has to adapt to life as a girl. He might face challenges like getting used to different clothing styles, or dealing with how people around him react. There could also be some comical moments, like when the other superheroes are really confused at first but then try to be supportive.
One great fanfiction with this premise could be 'Midoriya's Feline Adventure'. In it, Midoriya's transformation into a cat brings out some really cute and funny situations. His friends initially don't recognize him, and there are a lot of misunderstandings that lead to comical scenes. For example, Bakugo tries to shoo him away thinking he's just a stray cat, not realizing it's Midoriya.
Perhaps a powerful sorceress. She could be jealous of Robin's connection to Batman and the other heroes, so she uses her magic to turn Robin into a girl as a way to humiliate and weaken him. The sorceress could then try to use Robin's new form to her advantage, like trying to make Robin turn against the heroes or something.
Well, the plot could involve Pitch Black, now in cat form, trying to navigate a world full of strange new sensations. Maybe he's on a quest to regain his original form. He could be befriending other animals who help him in his journey, and along the way, he discovers the simple joys of being a cat, like chasing mice or lazing in the sun.
Well, he might have to rely on others for basic things like getting food. Since he's a cat, he can't open cupboards or cook. He'd probably be really frustrated at first, hissing at anyone who tries to touch him out of pride. But eventually, he might warm up to some people, especially if they give him fish.
In the 'Harry Potter gets turned into a cat' fanfiction, there could be a lot of comical situations. Imagine Harry trying to attend classes as a cat. He might jump on desks, knock over ink bottles, and cause chaos in the classroom. His professors would be very confused about this strange cat's behavior. And when it comes to fighting Voldemort, it would be a very different scenario. He might use his cat - like agility to dodge spells, but also have to find a way to cast his own magic in this new form.
One interesting plot twist could be that Sakura, as a cat, discovers she can communicate with other animals and they lead her to a hidden magical place. This place holds the key to turning her back into a human but also reveals a dark secret about why she was turned into a cat in the first place.
With his mentor or teacher figure, the dynamic would shift. Instead of being the student who is learning, Robin as a kid might be more in need of basic life lessons. His friends who were used to his equal partnership would now have to be more patient and understanding. They might find his child - like innocence endearing but also frustrating at times. And his relationship with any rivals could become more complex as they might not know how to deal with a kid version of him.
One possible plot could be that Nolan's transformation into a cat is part of a curse. In the Teen Wolf world, curses are not uncommon. He could then be taken in by one of the main characters, who doesn't initially realize it's Nolan. As Nolan tries to communicate his identity, he discovers that there are other forces at work that want to keep him as a cat. He has to use his cat - like abilities, such as stealth and agility, to outwit these forces and find a way to break the curse.
Well, in his cat form, Pitch Black could become more territorial. He might hiss at other animals or people who come too close to his 'domain'. His once menacing presence could be translated into a more stealthy and watchful nature. He would still be cunning, but now he would use his cat - like abilities to his advantage, like sneaking up on things. And perhaps his patience would increase, as cats are known to wait for the perfect moment to pounce.