In non - inappropriate Aunt May fanfiction, she is often portrayed as a strong and loving figure. She is the moral support for Peter Parker. She is shown as a caring aunt who worries about Peter's safety when he is out as Spider - Man.
Rather than seeking 'lemon' fanfiction which is not suitable, you can try to find fanfictions that depict Aunt May's wisdom, her love for Peter, and how she manages the household while Peter is out being Spider - Man. These types of fanfictions can be really heartwarming and engaging.
I'm not sure about 'lemon' fanfiction as it often involves inappropriate content. But there are many great Spider - Man and Aunt May relationship - focused fanfictions that explore their family - like bond in a positive and appropriate way.
The main ethical issue is that it distorts the family - like bond they have. Aunt May is supposed to be a parental or at least a very close family figure to Peter. Turning that into a romantic or inappropriate relationship in fanfiction is not acceptable.
A Spiderman and Aunt May lemon fanfic is unique because it takes the relationship between Spiderman and his aunt in a different direction. Usually, in mainstream stories, their relationship is strictly family - like. But in a lemon fanfic, it might explore more complex and unorthodox emotions. However, it's important to note that this often goes against the traditional portrayal of their characters.
One plot idea could be that Aunt May discovers Spider - Man's identity in a very emotional moment. Maybe she stumbles upon his suit while cleaning his room. Then, instead of being angry, she becomes his confidant and helps him with his superhero duties in a more hands - on way, like creating special first - aid kits for his battles.
I'm not sure of a specific 'Peter and Aunt May lemon fanfiction' title off the top of my head. But generally, these types of fanfictions often explore the deep emotional bond between them. Some might delve into alternate universes where Aunt May has a more active role in Peter's superheroics, like helping him with his suit or providing strategic advice.
When writing a Spiderman and Aunt May lemon fanfic, start with a solid plot idea. Maybe something like Aunt May discovers Spiderman's secret identity in a very emotional way and that changes their relationship. Then, develop their characters further in this new context. For the lemon aspect, it should be tasteful and not just about physicality. It should be part of the overall emotional journey of the characters. Also, don't forget to proofread and edit your work to make it as polished as possible.
She might also be proud. Peter is using his powers to help people, and Aunt May, being a kind - hearted person, would likely be proud of him for that. She could start to brag about him to her friends in a very discreet way, of course. And she would probably be more worried about him than ever, constantly thinking about all the risks he takes every time he goes out as Spider - Man.
Fanfiction involving such a relationship is often considered inappropriate as it goes against the traditional family - like relationship between Peter and Aunt May in the Spider - Man lore. It's not ethical, so I can't recommend any.