A possible plot is that the other Z - fighters are in shock when they find out. Vegeta, in particular, could have a complex reaction as he has his own relationship with Bulma. He might be jealous or protective in his own way. Also, the fanfiction could focus on how Goku and Bulma's child might inherit both Saiyan strength and Bulma's intelligence, and what that could mean for the future of the Dragon Ball universe.
One idea could be a story where Bulma creates a new device that accidentally sends Goku and her to a parallel universe. There, they have to work together to find a way back home while facing new and strange enemies. Another could be a time - travel plot where they go back in time to before Goku met Chi - Chi and Bulma realizes she has feelings for him. The third idea is a story where Goku and Bulma get trapped on a deserted planet and must rely on each other's skills to survive and escape.
One idea could be a time - travel fanfic where Bulma accidentally sends Goku back in time to a period before they met. Goku has to figure out how to get back while also dealing with the differences in that time period. Another could be a story where Bulma creates a new device that gives Goku a new power - up, and they have to test it out against a new, powerful enemy. A third idea is a fanfic set in an alternate universe where Goku and Bulma are the rulers of Earth and have to deal with diplomatic issues with other planets.
One plot idea could be that Goku and Bulma accidentally end up in a parallel universe where they are the only ones who know each other. They have to rely on each other to survive and in the process, they discover new feelings for one another. Another could be a time - travel plot where Bulma goes back in time and meets a younger Goku and they form a bond that is different from their usual friendship in the original timeline. A third idea is that Goku gets injured badly during a fight and Bulma takes care of him. During his recovery, they start to see each other in a new light.
A possible plot in the 'dragon ball goku and bulma lemon fanfiction' could be that Bulma is working on a project that requires a special ingredient or power source that only Goku can help her find. As they search together, they encounter various challenges like dangerous terrains and powerful creatures. Along the way, their friendship deepens and they learn more about each other's strengths and weaknesses. This could lead to them developing new powers or techniques that they bring back to their friends in their normal world.
A plot could involve Bulma creating a new device that Goku needs to use in order to defeat an extremely powerful enemy. Goku has to learn how to operate this device with Bulma's guidance, and they face many obstacles along the way. This would show their cooperation and how their different skillsets complement each other. It could also lead to some comical moments as Goku tries to understand the complex technology. Another interesting plot could be that they are both transported to an alternate dimension where the rules of the Dragon Ball world are slightly different. They have to figure out how to adapt and find a way back home while also uncovering the secrets of this new dimension.
Well, one idea could be an alternate universe where Goku Black has some unexpected interactions with Bulma. Maybe he tries to use her intelligence to his advantage in a plot against the Z - fighters.
A possible plot could be that they are transported to a parallel universe where male Saiyans are able to get pregnant. They meet alternate versions of themselves and their friends, and have to adapt to this new world while dealing with their pregnancy. This could lead to many adventures and self - discovery moments for both of them.
There are fanfictions where Bulma and Goku are sent back in time accidentally. In this scenario, they have to figure out how to get back to their own time while also dealing with the primitive conditions of the past. It could involve Goku having to hold back his power so as not to disrupt the timeline too much, and Bulma using her wits to survive. This type of story often has a lot of character development as they face challenges they've never had to before.
One plot idea could be that Bulma creates a special device that can transport Naruto to the Dragon Ball universe. There, Naruto has to learn to use ki instead of chakra and teams up with Bulma to stop a new threat that is endangering both universes. Another idea is that Bulma discovers a way to combine the technology of her world with the ninja techniques of Naruto's world. This could lead to some really cool inventions and battles. A third plot could involve Bulma accidentally getting sent to the Naruto universe and Naruto has to protect her while she tries to find a way back home. Along the way, Bulma could introduce some of her scientific knowledge to the ninja world, which would change things in unexpected ways.
One idea could be that Goku and Goku Black are forced to team up against an even greater threat from another universe. They start to understand each other's fighting styles during the battle and gradually develop a grudging respect for one another.