I don't think it's accurate to say that Vegeta can't resist Bulma's seduction. Vegeta is initially a rather cold and battle - focused character. His relationship with Bulma developed gradually over time. It was more about them growing closer through shared experiences, like raising Trunks, and facing various threats together. Seduction doesn't really seem to be in line with the nature of their relationship.
Bulma's presence has a big impact on Vegeta. She provides a sense of stability. For example, she gives him a home and a family, which is something he didn't have before. Her intelligence also challenges him in a way. He respects her smarts, and it makes him think differently about things.
In DBZ Vegeta and Bulma fanfiction, there can be alternate universes explored. Maybe in one universe, they meet under different circumstances. For instance, instead of Vegeta coming to Earth as an enemy, he could be an ally from the start. This would completely change the dynamics of their relationship. It could lead to a more romantic and less combative start to their relationship, and the fanfiction could explore how this different beginning affects their future together.
In Saiyan fanfics, Vegeta and Bulma's love is often depicted as a complex and evolving relationship. Vegeta, the proud Saiyan prince, initially has a rough exterior. But Bulma's tenacity and unique charm gradually break through his barriers. Their love story can add a lot of emotional depth to the Saiyan - centered fanfic universe.
A third fanfiction concept could be about how they prepare for the baby's arrival. Vegeta, not knowing much about Earthling baby things, has to learn. Bulma tries to teach him, and there are a lot of cultural clashes and misunderstandings at first. But as time goes on, they work together to create a perfect nursery and get ready for their new family member.
Perhaps in this fanfiction, there's a lemon - loving alien race in the DBZ world. Bulma, being the curious scientist, wants to study them, and Vegeta is dragged along. Along the way, they face challenges that force them to work together in new ways, and their relationship deepens as they navigate through this lemon - related encounter.
Bulma's pregnancy in fanfiction could also bring out different aspects of their relationship. They'll likely have more tender moments. Maybe Vegeta will start to share his Saiyan traditions with Bulma regarding child - rearing. And Bulma will introduce him to more Earthling - style family values. This exchange can be really interesting to explore.
It's fictional in the sense that the series doesn't really portray it like that. Vegeta has his own personality and pride. He may be influenced by Bulma in different ways, but not in a way that implies he can't resist her'seductions'. Their relationship is more about two individuals from different backgrounds coming together, learning from each other, and growing in love and respect over time. For example, Vegeta became more in - touch with his emotions because of Bulma, not because of some sort of seductive power she has over him.
One little secret could be the way Vegeta slowly warms up to Bulma's family. At first, he seems so aloof, but over time, he starts to care about them in his own way.
Another common plot is the 'time - travel' scenario. Given the time - travel elements in DBZ, some fanfictions might send Vegeta or Bulma back in time. This can lead to interesting situations where they have to interact with their younger selves or change certain events in the past. It also gives a chance to explore their relationship in a different timeline.