A possible scenario is that Vegeta gets involved in a fight that he knows is dangerous but still pursues it, and as a result, his enemies target Bulma and Trunks. Another is that he may be under some sort of mind control in the fanfiction and end up attacking them unknowingly. Also, his pride - driven actions, like trying to prove himself as the strongest, could lead to situations where Bulma and Trunks are put at risk, for example, if he challenges a much stronger opponent near their home.
In some fanfictions, Vegeta's past Saiyan upbringing might resurface in a negative way. He could try to instill some of the harsher Saiyan values in Trunks, like not showing weakness. This could be harmful to Trunks as he is also part Earthling and has different emotional needs. For Bulma, Vegeta might bring some of his Saiyan politics or grudges into their family life. For instance, if he has a feud with another Saiyan or alien race, it could endanger Bulma and Trunks. He may also make decisions about their family without consulting Bulma, which would hurt her.
In some 'Vegeta and Bulma get hurt fanfiction', it could be due to a betrayal. A supposed ally turns on them. Vegeta, being prideful, might not see it coming at first and get seriously injured in the initial attack. Bulma, who is with him, gets caught in the crossfire. She could be hurt while trying to protect their young son, Trunks. This kind of situation would add a lot of drama and emotional turmoil to the story.
One possible scenario could be that Vegeta is too focused on his training and ignores Bulma's emotional needs. He might be constantly pushing himself to get stronger and in the process, not give Bulma the attention she desires. For example, he could skip out on family events or important dates just to train.
One possible scenario could be that Vegeta and Bulma constantly show their love for Bulla by taking her on special adventures. For example, they might take her to visit other planets in the Dragon Ball universe where she can learn about different cultures and powers. This would not only strengthen their family bond but also help Bulla grow as a person.
Vegeta might also feel a sense of pride and anticipation. He's been through a lot, and having a child with Bulma is a new chapter in his life. He could start training even harder to make sure he can protect his family, and at the same time, he might have some tender moments with Bulma where he shows his care in his own unique Saiyan way.
One possible scenario is that it takes place during a celebration. After a victory against a powerful enemy, there's a party. Bulma and Vegeta find themselves alone for a moment. The atmosphere is charged with joy and relief. Vegeta, feeling a sense of gratitude towards Bulma for always being there, might gently touch her face and then kiss her. It would be a soft and tender moment.
One possible scenario could be that Vegeta finally realizes his deep feelings for Bulma during a moment of great danger. He might see her in harm's way and his protective instincts kick in, leading him to blurt out his love.
One possible scenario could be that it happens after a big battle. Vegeta, having realized his deep feelings for Bulma during the fight, when the danger has passed, he just can't hold back anymore and kisses her passionately. It could be a moment of pure emotion, with the adrenaline from the battle still coursing through them.
Another is a moment of celebration. Maybe they've just found out some great news, like a new discovery in Bulma's lab that could help the Z - fighters. In the excitement, Vegeta and Bulma share a kiss. This kind of scenario emphasizes their shared interests and how they support each other in different aspects of their lives.
A fanfiction could focus on a day in the life of the family. Bulma could be working on some new invention in her lab, Vegeta is training hard outside, and Baby Trunks is getting into all sorts of cute mischief. Then, something unexpected like a small alien invasion occurs near their home, and they all have to work together to deal with it.
Well, perhaps in the fanfiction, Vegeta's Saiyan temper gets the best of him. He might accidentally let out a powerful blast of energy near Bulma or Trunks, endangering them. Also, his pride could make him say some cutting words to Trunks about not being strong enough, which would surely wound Trunks' self - esteem. And with Bulma, his lack of understanding of Earthling emotions could lead to him making decisions that go against her wishes, causing her pain.