His relationship with Mary Jane could change. Without his powers, he might be more vulnerable, and Mary Jane could become more protective. Instead of being the damsel in distress, she could be the one looking out for Peter. Their relationship could become more of an equal partnership in terms of protecting each other.
Well, the story could focus on Peter relying on his intelligence more. He could become a tech - genius, creating gadgets to fight crime like Batman. For example, he might develop advanced web - shooters that don't rely on his spider - powers but on his engineering skills. He could also team up with other characters who have powers to compensate for his lack of them.
Often, in fanfic, Peter's new powers come from exposure to other sources related to spiders. It could be a new type of radioactive spider or a spider - themed experiment gone wrong. For instance, he might come across a super - spider in a hidden lab that bites him again, enhancing his existing powers and giving him new ones like the ability to fly using web - wings. Another way is through magical or alien influences. If there's an alien entity that has an affinity for spiders, it might enhance Peter's powers to use him for its own purposes.
In some fanfictions, Peter Parker might have the power of telepathy in addition to his usual spider - powers. This could allow him to read minds and anticipate his enemies' moves even better.
In some fanfictions, Peter Parker might have the power to control spiders other than just having the abilities of one. For example, he could communicate with all spiders and make them do his bidding, like creating a spider army to fight villains. Another power could be the ability to manipulate his webs in more complex ways, such as changing their texture or making them invisible for stealth attacks.
His relationship with Aunt May would be less about worrying over his superhero activities. She wouldn't have to constantly fear for his safety when he goes out 'patrolling'. They could have a more normal family life, with Peter coming home at normal times and not having to make up excuses for his bruises or late nights.
If Peter Parker had ice powers in fanfiction, it would likely change his relationships too. His friends might be both amazed and a bit worried about this new development. MJ could be concerned about the risks it brings, while Ned might be super excited and try to help Peter figure out all the cool things he can do with the ice powers. And his enemies would definitely have to rethink their strategies against him.
One way is to incorporate more scientific explanations. Even if it's just a fanfiction, it can make the spider powers seem more real. Maybe research on how spiders' abilities could be translated to a human - sized scale and use that in the writing. Also, by showing how Peter trains to improve his powers. Does he practice his web - shooting speed? How does he increase the strength of his webs? These details would make the portrayal of his spider powers more engaging.
One idea could be Peter Parker using his spider powers in a different era, like the 1920s. He could swing between the old - style skyscrapers and fight crime in a more vintage setting. Another could be Peter having to deal with his powers malfunctioning due to some strange new villain's technology. This would make him have to rely more on his wits and less on his usual spider - strength and agility.
Peter Parker's spider - sense and super strength, along with Spider Gwen's acrobatic skills and wall - crawling ability, would add a new dimension to the Avengers' combat capabilities. Their agility could help in quickly evading attacks and getting to hard - to - reach places during battles.