Goten was essentially a character introduced in the Dragon Ball Z universe through the creative imagination of the creators. In the comic dub, his birth and existence were part of the ongoing story development.
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.
Overall, the DBZ comic dub in a brief affair has its pros and cons. The voices might not match the characters perfectly, but the translation could be decent enough to follow the story.
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.
There is a fanfiction called 'Baby Vegeta's Training'. In this, it details how baby Vegeta, despite his small size, still tries to train and become stronger. It's interesting as it gives insights into his character and his unwavering determination to be the best, even as a baby.
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.
Well, obviously Female Vegeta herself is a very popular character. She is often portrayed as strong - willed and having all the Saiyan pride just like the original Vegeta. Goku also makes appearances in many of these fanfictions. His carefree and powerful nature contrasts with Female Vegeta's more serious and prideful demeanor. Another popular character is Bulma. She might interact with Female Vegeta in different ways, like providing her with some tech or just being a friend and giving her advice on Earthly things.
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.
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.