The theme of family secrets also often appears. Since there are so many secrets in the Potter family, fanfictions might explore how Petunia was affected by these secrets, especially the ones related to Harry's parents. It could be about her learning about these secrets over time and how it changes her perception of Harry and the magical world.
Another theme is redemption. Many fanfictions explore the idea of Petunia finding a way to redeem herself in Harry's eyes. This could involve her finally accepting Harry's magic and even using her knowledge of the Muggle world to help him in some way. It gives a chance for character growth and a more positive relationship between them.
One popular theme is the exploration of Petunia's jealousy towards Lily. In fanfiction, this can be delved into deeply, showing how it might have affected her relationship with Harry. For example, some stories might show Petunia struggling with her feelings of envy for Lily's magical abilities and how that spills over into her treatment of Harry.
One common theme is redemption. Often, Petunia is portrayed as having a chance to redeem herself for her past treatment of Harry. For example, she might finally show some love or understanding towards him.
I'm not sure if there are 'popular' ones in the sense that they are widely known and accepted. Lemon fanfictions are a bit of a niche and often not mainstream due to their mature content. But there might be some that have a following within the more hardcore Harry Potter fanfiction community.
One common theme could be the exploration of a complex family relationship. Since Petunia is Harry's aunt, there might be themes of family secrets and hidden emotions. Another theme could be the transformation of their relationship from a rather hostile one in the original story to something more nuanced in the fanfiction.
One common theme is redemption. Many fanfictions explore Petunia's chance to redeem herself for her past mistreatment of Harry. Another theme is family. They might not be a typical family, but the stories often focus on how they can form a bond. For example, in some, Petunia realizes her role as Harry's only remaining family member and tries to be better.
One common theme is redemption. Aunt Petunia is often portrayed as having a chance to make up for her years of treating Harry poorly. Another theme is family secrets. There could be secrets about Lily that Aunt Petunia finally reveals to Harry.
Yes, there are some out there. You can start by looking on fanfiction platforms like FanFiction.net or Archive of Our Own. Some writers might explore an alternate universe where Vernon and Petunia show love towards Harry in a more positive way, perhaps due to a change in circumstances or a different understanding of his situation.
There might be some, but it's a rather unusual pairing considering their relationship in the original 'Harry Potter' series. However, you could try searching on fanfiction platforms like Archive of Our Own. Some authors might have explored this unique concept in their works.
Fanfiction can cover a wide range of themes, but 'Harry Potter x Petunia' with a 'lemon' aspect is not something that aligns well with the overall tone of the original story. The series is mainly about magic, friendship, and the fight against evil. If you're interested in their relationship, look for fanfictions that explore their family dynamic, like how Petunia's jealousy and fear influenced her treatment of Harry, rather than 'lemon' ones.
I'm not sure specifically about 'Harry Potter Petunia Slave' fanfiction. There are so many fanfictions in the Harry Potter universe that it can be hard to find ones with such a specific and rather unusual concept. You could try searching on major fanfiction platforms like Fanfiction.net or Archive of Our Own and use those exact keywords to see if anything comes up.
There might be a fanfiction where Lily gives Petunia a lemon as a symbol of peace or forgiveness. This could lead to a series of events that change their relationship, and Harry could be the catalyst for it all. For example, he might find a diary that details this lemon - related incident and tries to make sense of it in the context of his family's history.