If Aunt May finds out in a fanfic, she could have various reactions. She might be disappointed if it was about something that went against her values. For example, if Peter Parker (assuming it's a Spider - Man related fanfic) was doing something unethical, she'd likely try to set him straight. She has that motherly figure role, so she'd probably be very concerned and take action to fix things.
Well, it could lead to a lot of chaos. Maybe she'd be shocked and try to put a stop to whatever wild situation was going on in the fanfic. She might start lecturing the characters involved, especially if it involved something she thought was inappropriate or dangerous.
She could also be very proud. Peter is a hero as Spider - Man, and Aunt May has always known Peter to be a good person. Now that she realizes he's using his powers for good, she might see him in a new light and be proud of the man he's becoming.
She might also be a bit angry that he didn't tell her earlier. She could feel left out or betrayed that he kept such a big part of his life from her. This could lead to some tension between them for a while until they work it out. She might make him promise to always be honest with her from then on.
In the 'Naruto finds an egg fanfic', Naruto may take the egg to his teacher, like Iruka. They might study it together. It could be an egg of a rare creature. Naruto's sense of adventure would lead him to discover more about the egg, and perhaps it will hatch into a cool animal that becomes his new friend or ally.
He could find the sword in an ancient tomb. This tomb might be filled with traps and puzzles that Naruto has to overcome. Once he gets the sword, he discovers that it glows when near an enemy's weak point. So, he starts using this ability to his advantage in battles.
In a 'Naruto finds a gun' fanfic, one possibility is that Naruto, being curious, might initially mistake it for some strange new weapon from another land. He could try to figure out how it works in his own Naruto - like way, perhaps by trying to infuse chakra into it, which might lead to unexpected and comical results, like the gun shooting out chakra - blasts instead of bullets.
Well, he might discover a hidden jutsu scroll in the library. It could be a long - lost technique that gives him an edge in battles.
The story in the 'naruto finds a tank fanfic' could also take a more comical turn. Naruto could accidentally set off some alarm on the tank and then start panicking, thinking it's about to attack him. Or he might mistake the tank for a really big and strange animal and start trying to communicate with it in his own Naruto - like way, which would be really funny to read.
She might also be proud in a way. Peter is a hero as Spider - Man, and Aunt May has always known Peter to be a good - hearted person. Once the initial shock wears off, she could see this as an extension of his kind nature. She might start secretly helping him, like making sure he has proper meals and rest when he comes home tired from his Spider - Man duties. And she could be a great source of emotional support for Peter, which he really needs in his double life.
Maybe Naruto discovers that the weird artifact has some special powers, like the ability to open portals to other dimensions.
In the 'bella finds a dragon egg fanfic', there are many possibilities. The dragon egg could be the key to unlocking a hidden magic in Bella's world. As she takes care of the egg, she might learn new spells or abilities herself. She could form a deep bond with the dragon once it hatches. The fanfic could also explore how the discovery of the egg changes Bella's life. For example, she might become more responsible and brave as she has to protect the precious egg and the young dragon that will emerge from it. It could also lead to her getting involved in a larger conflict between different factions who either want to protect or use the dragon for their own gain.