One plotline could be that Adrien discovers his cat eyes are a sign of a special power he has. He then has to learn to control this power and keep it a secret from those around him.
Maybe his cat eyes make him a target. There could be an evil force that is after people with unique features like his. So, Adrien has to go on the run and figure out how to protect himself and his loved ones. This would involve a lot of action and suspense as he tries to outwit his pursuers.
A possible plotline is that the cat eyes are related to a past life or a forgotten heritage. Adrien starts having strange dreams about a cat - like being and as he investigates, he uncovers a whole new world of magic and mystery that was hidden from him. This would be a more magical and discovery - based plotline, full of revelations about his true self and his place in the world.
One possible plotline could be that Adrien's father is facing a financial crisis, and Adrien uses his intelligence and charm to attract investors or find new business opportunities. Another could be that his father is ill, and Adrien takes on more responsibilities at home and in his father's business to keep things running smoothly.
One possible plotline could be that Adrien gets rejected by Ladybug, and this makes him question his self - worth. He might start to withdraw from his superhero duties for a while, thinking that he's not good enough. His friends notice the change in him, but he doesn't want to talk about it at first. Eventually, he realizes that his identity as Chat Noir is more than just being Ladybug's partner and he starts to focus on protecting Paris in his own right.
Perhaps the cat tail is a curse at first. Adrien has to deal with all the awkwardness it brings, like not being able to hide it properly. But as time goes on, he realizes that the tail gives him an edge in certain sports or activities, like climbing. So it turns from a curse to a sort of advantage.
Perhaps a plotline where the pregnant cat gets lost and has to fend for itself while being pregnant. It could face various challenges like finding food and a safe place to stay. Then, there could be a heroic rescue by either its owner or some kind animals. Also, there could be a plotline about the cat's pregnancy affecting its behavior. It might become more moody or affectionate, and the fanfiction could explore how those around the cat deal with these changes.
One possible plotline could be that they initially struggle to adapt to each other's lives. Adrien, in his dad's body, might have to deal with the pressures of running a business, while his dad in Adrien's body has to handle school and social life. This could lead to a lot of comical misunderstandings.
One plotline could be that the Basilisk eyes make Harry a target for dark wizards who want to harness his power. He has to constantly be on the run and protect himself while also trying to figure out how to control his new ability. His friends from Hogwarts could form a sort of protection squad around him, and they'd have to face many challenges together.
One possible plotline could be that Bella's golden eyes are a mark of her being a chosen one. Maybe in a world full of different supernatural beings, her golden eyes set her apart and make her the target of both good and bad forces. Another plotline could be that her golden eyes are a result of a spell gone wrong, and she has to find a way to reverse it while dealing with the consequences of looking different.
Sure. This could be a really interesting take on the character. Maybe the cat eyes are symbolic of a hidden side of Adrien. In many fictional universes, cat - like features often represent a sense of independence and a touch of wildness. So, the author might be using this to add depth to Adrien's character, showing that there's more to him than meets the eye.
One possible plotline could be the Black Cat character forming a relationship with another female character in the Marvel universe. They might start as allies in some sort of adventure and gradually develop romantic feelings as they face challenges together and discover more about each other.
One possible plotline could be that the black cat has a closer relationship with MJ's love interest. So MJ feels jealous as she sees the black cat getting more attention from the person she likes.