It could be a single, kind - hearted scientist who sees Peter's potential and wants to give him a stable home. The scientist might also be interested in studying Peter's enhanced abilities in a more ethical way compared to some of the villains in the Spider - Man universe.
It could be a new villain, someone who has a personal vendetta against Peter Parker. Maybe a criminal whose operations Spider - Man has disrupted one too many times.
In a 'Peter Parker gets a chibi' fanfiction, the chibi could be from an alternate dimension. Peter first thinks it's some sort of strange new enemy but soon realizes it's just a lost little being. He decides to help it find its way home. Along the way, they have all sorts of adventures. The chibi might have unique abilities that Peter doesn't have, like the ability to communicate with animals. This could lead to some interesting situations where they have to work together with the help of the animal kingdom to overcome obstacles.
The main antagonist could be a scientist who wants to study the chibi. This scientist might be a bit of a madman, seeing the chibi as a unique specimen to experiment on and not caring about its well - being. He could try to capture the chibi and Peter has to stop him.
I'm not sure specifically about 'peter parker 5 1 fanfiction'. But there are many great Peter Parker fanfictions out there. You can try websites like Archive of Our Own. They have a vast collection of fan - made stories about Peter Parker that are really engaging.
Another plot could involve Peter being adopted by a family with their own set of secrets. Maybe they are part of a secret organization and they see potential in Peter's abilities. As a result, they train him in different ways that complement his Spider - Man skills.
Perhaps Peter has to keep his identity a secret even while being treated for the gunshot wound. This could lead to some tense moments in the hospital as he tries to avoid giving away who he really is. Also, the villain who shot him might come back to finish the job, creating a high - stakes situation where Peter has to use his wits more than his strength in his weakened state.
One interesting plot could be that the other Avengers have to take care of baby Peter. They struggle with things like changing diapers and feeding him, all while trying to figure out how to turn him back. It would be really funny to see tough heroes like Thor or Iron Man being clueless about baby care.
Definitely Aunt May. She would be super worried about baby Peter and would do everything she could to take care of him. She might even call in some old friends or neighbors to help out.
In fanfiction, Peter Parker's age can vary widely. Some fanfics might keep him at his traditional comic or movie age, like a teenager in high school, around 15 - 18 years old. This allows for stories centered around his high - school experiences, dealing with bullies, and his early days as Spider - Man.