One challenge could be protecting the baby from their enemies. Vegeta has made many foes over the years, and they might target the baby. Also, Vegeta's Saiyan nature might make him push the baby too hard in training, while Bulma wants a more relaxed approach. This difference in parenting styles could cause some friction between them.
In this fanfiction, the baby might be a key to uniting different factions in the Dragon Ball universe. Since Vegeta has his Saiyan heritage and Bulma is an Earthling, their baby could symbolize a new era of peace and cooperation. The story could show how the baby grows up being adored by all the Z - fighters. Vegeta would be protective and train the baby in secret, while Bulma would be showing off the baby's cute side to her friends. There could also be some comical moments when the baby's Saiyan appetite clashes with Bulma's attempts to feed it a balanced diet.
As far as I know, no. The idea of 'baby bra' in relation to Vegeta and Bulma seems rather unusual. In the world of Vegeta and Bulma fanfiction, popular stories usually center around things like Vegeta's training, Bulma's inventions, and their family dynamic with Trunks. There's not much indication that a 'baby bra' fanfiction would be well - known.
There could be a rogue Saiyan who has different ideals from Vegeta. This Saiyan might think that the baby should be raised in a more traditional, warrior - like way and try to take the baby from Bulma and Vegeta. Or, an evil scientist who wants to experiment on the baby's unique Saiyan - human DNA could be the main antagonist, creating all kinds of challenges for Vegeta and Bulma to protect their child.
Writing fanfiction about sexual content involving characters is generally not appropriate. These characters are often from family - friendly franchises like Dragon Ball. Such content goes against the spirit of the original work which is mainly focused on action, adventure, and positive values. It can also make many fans uncomfortable, especially younger ones who are fans of the series.
I'm not sure specifically about 'baby bra' related fanfictions as it's a rather strange concept. However, there are many great Vegeta and Bulma fanfictions in general. You can try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own. There you might find stories that focus on their relationship, from how they first got together to their family life with Trunks.
Their relationships are often shown as loving yet complex. Vegeta, who was once a cold - hearted warrior, has a soft spot for his family. He is protective of Bulma and Baby Trunks. Bulma is the brains of the family, and she manages to keep Vegeta in check. Baby Trunks is the source of joy and also a reason for Vegeta to strive to be a better person.
Perhaps the fanfiction could focus on how the baby's Saiyan heritage affects its growth and development. For example, it might have a very strong appetite like Vegeta, or it could show signs of intense determination early on. Also, it could be interesting to write about how Bulma uses her scientific knowledge to ensure the baby's well - being while also dealing with Vegeta's Saiyan parenting ideas.
In the fanfiction, their relationship is full of passion. It's not just a physical passion but also an emotional one. Vegeta, who was once a cold - hearted Saiyan, has softened because of Bulma. He shows his love in his own way, like training hard to protect her. Bulma, in turn, is attracted to Vegeta's strength and his gradual transformation into a more caring person. They bicker sometimes, like any couple, but it's all part of their unique dynamic.
In such fanfiction, Vegeta might make Bulma happy by showing his softer side. Maybe he cooks a special meal for her. Vegeta is often portrayed as tough, but when he does something out of his usual character like cooking, it can be a sweet surprise for Bulma.