Perhaps in the fanfiction, the pregnancy could be a result of some sort of magical or alien interference. This would add an extra layer of mystery and adventure. They would then have to not only deal with the pregnancy itself but also figure out what caused it and if there are any hidden dangers or powers associated with the baby due to this strange origin.
One plot idea could be that Raven discovers she's pregnant and is initially in denial. She tries to hide it from the rest of the Teen Titans, especially Beast Boy, because she's afraid of how he'll react. Another could be a more comical take where Beast Boy accidentally finds out before Raven has a chance to tell him, and he goes into over - protective mode immediately. Maybe he starts reading every pregnancy book he can find and trying to cook special healthy meals for Raven, much to her annoyance at first.
In the 'beast boy dominates raven fanfic', it could be that Beast Boy dominates in the emotional aspect. He might be the one to break through Raven's emotional barriers, being more in touch with his own feelings and using that to help Raven open up. This could involve him sharing his own experiences of loss or self - discovery, which in turn makes Raven more vulnerable and allows for a deeper connection between them.
One interesting plot could be Beast Boy trying to balance his relationships with different characters in the harem. For example, he might have to deal with their different personalities and needs. Maybe one girl in the harem is really into his shape - shifting abilities and wants him to show off all the time, while another is more interested in his softer, more emotional side.
A good fanfiction in this case would also involve world - building. Since they are superheroes, think about how the world they live in will react to their situation. Will there be any laws or regulations regarding superhuman pregnancies? How will the media in their world cover it? You can also add elements of conflict, such as an enemy trying to take advantage of Raven's weakened state during pregnancy or Beast Boy being distracted from his duties to protect his family. All these aspects combined can make for a great Raven x Beast Boy pregnant fanfiction.
One common theme is the exploration of their different personalities. Raven is often seen as dark and brooding while Beast Boy is more light - hearted, and fanfictions like to play with how they interact. Another theme is the idea of them facing challenges together, like fighting villains as a couple in a way that wasn't shown much in the original series.
One great Beast Boy x Raven fanfiction is 'Soulmates in the Tower'. It delves deep into their relationship, exploring how their personalities, which seem so different on the surface, actually complement each other in many ways. The author beautifully portrays their growing understanding and attraction for each other.
A great plotline could involve them having to combine their powers to protect their home or a new family member. Since Raven has her dark magic and Beast Boy can transform, they could create unique defenses. Also, they might have cultural differences to overcome, as Raven has her more somber and mysterious background while Beast Boy is more light - hearted. This could lead to some comical and also heart - warming moments in the fanfiction.
Their contrasting personalities make them interesting. Beast Boy is fun - loving and outgoing, while Raven is more reserved and brooding. In fanfiction, this contrast can lead to great character dynamics. For example, Beast Boy might try to cheer up Raven when she's feeling down, or Raven might help Beast Boy become more serious when needed.
Well, a plot could be that Raven is a new transfer student to a school where Chelsea is a die - hard Chelsea fan. Chelsea tries to convert Raven into a fan too. As they spend time together, sharing stories about the team's history and players, they become really good friends and then more. There could also be a plot where Raven has a premonition about something bad happening to Chelsea's favorite player. She then has to figure out how to prevent it without revealing her powers to the world.
One interesting plot could be baby Beast Boy's first encounter with other Titans as a baby. Maybe he accidentally turns into different animals and causes chaos in the Titans' tower in a really cute way.