Most fans would probably be quite shocked and against it. In the original Naruto story, Kushina and Minato are seen as a loving couple. Their relationship is an important part of Naruto's backstory. So, the idea of cheating goes against the positive image that fans have of them.
Well, in the Naruto fandom, the idea of Kushina cheating on Minato in fanfiction would be met with a lot of mixed reactions. On one hand, the traditional fans who love the original story and the pure relationship between the two would be very much opposed. They would see it as a desecration of the characters' integrity. On the other hand, there are those who are more open - minded to alternative storylines. However, even they might find it hard to accept as it goes against the fundamental nature of the relationship as presented in the main series. There could also be a group that would simply ignore such fanfictions because they don't want to engage with such a controversial concept.
The Naruto fandom is very passionate about the characters and their relationships. For the concept of Kushina cheating on Minato in fanfiction, some fans might be outraged as it seems to disrespect the source material. Others might be intrigued by the idea of exploring a more 'taboo' or 'what - if' scenario, but overall, it would likely be a controversial topic. Since their relationship is so central to Naruto's story, any deviation like this is bound to cause a stir.
I'm not aware of any Naruto fanfiction with such a distasteful plot. The Naruto series is mainly about friendship, love within family and between comrades, and the pursuit of dreams. This kind of content that violates the positive values of the original work is not something that should be promoted in the fanfiction community.
Minato would probably be very proud. He might notice Naruto's use of his own jutsu and be impressed by how Naruto has developed his skills. Kushina would be more emotional, maybe crying at the sight of Naruto growing up so well.
It would be very controversial. Fans of the original Naruto series who love the pure and loving relationship between Kushina and Minato would be extremely disappointed. It could also create a lot of negative buzz in the Naruto fan community as it goes against the established characters' personalities.
Most Naruto fanfiction tends to focus on positive aspects such as character development, exploring backstories more deeply, or creating new adventures. A plot about Kushina cheating in such a way is not in line with the values the series promotes. However, the Naruto fanfic world is vast, and there might be some out - there that try to be edgy or different, but it's not a common or popular theme.
One common theme is isolation. Naruto would be all alone without his parents, and this would shape his relationships. Another theme is revenge. In some fanfictions, he might seek revenge on the village for his abandonment.
One common theme is the idea of redemption. Maybe in some fanfictions, Minato or Kushina have something they feel they need to make up for in the afterlife, and it involves helping Naruto in some way. Another is the theme of growth. Naruto grows up without his parents, but in fanfiction, they can be a part of his growth process in some supernatural way. And of course, the theme of heroism runs through a lot of these stories, as Minato was a hero, and Naruto becomes one too, and Kushina was a strong kunoichi.
On a more personal level, they could face internal guilt. As Naruto grows up and achieves great things on his own despite their neglect, Minato and Kushina may realize what they've missed out on. This realization could cause them a great deal of internal turmoil and regret for not being there for their son when he needed them.
In Naruto, the story is built on themes of family, love, and sacrifice. Minato and Kushina are important figures in Naruto's family tree. Minato was a great Hokage and Kushina was a strong - willed woman. Their love for Naruto is a fundamental part of the story's emotional core. So in fanfiction, it's hard to imagine a deviation from this where they would abuse Naruto. Most fanfiction writers prefer to stay true to the spirit of the original story, which is full of positive family values.
It's a tough call. On one hand, fanfiction is a place for creativity and exploring different scenarios. But on the other hand, Kushina and Minato are iconic characters with a well - established relationship. Cheating is not something that fans would easily associate with them. So while some might find it interesting to explore this dark side, many would probably be turned off by it.
The idea of Kushina cheating on Minato in fanfiction is quite a departure from the typical Naruto story. Fanfiction often takes creative liberties, but this is a rather extreme one. It could potentially add a whole new layer of conflict and emotional turmoil to a story. But at the same time, it might be seen as disrespectful to the original characters and their relationship. Maybe some writers use it to explore how Minato would react in such a situation or to show a different side of Kushina, but overall it's a very controversial concept.