Perhaps the pregnancy reveals some secrets from their past. It could be that they had a one - time encounter long ago that they both forgot about, and the pregnancy brings those memories back. This could lead to a lot of drama and tension as they try to come to terms with their shared history while also dealing with the future that the pregnancy represents.
One possible plot twist could be that the pregnancy is not as straightforward as it seems. Maybe there are some magical or supernatural elements involved in Bella's pregnancy that Will has to figure out. For example, it could be that an ancient spell has been cast on Bella which causes her pregnancy, and this spell has some hidden intentions or consequences that will unfold throughout the fanfiction.
Maybe the kiss is part of a spell or a curse. In the world of H2O, there could be some magical force at play. The kiss was meant to transfer powers or memories between them. So, instead of a normal romantic kiss, it becomes a catalyst for a whole new adventure or problem they have to face together.
A possible plot could be that they become friends and start a project to educate humans about mermaids in a non - romantic way. They could work together to create a school program or something similar. For example, Will could bring in his schoolmates and Bella could show them some of her mermaid abilities in a safe and educational setting.
For Bella, you could show her growing in confidence as she deals with the pregnancy. At first, she might be scared and unsure, but as time goes on, she could become more assertive in making decisions for herself and her unborn child. For example, she could start taking charge of her prenatal care and making plans for the future, which shows her strength.
One possible plot twist could be that the pregnancy is not natural. Maybe it was the result of some magical or supernatural interference. For example, a powerful witch cast a spell on them for some unknown reason.
One common theme is friendship. Fans often explore how Will and Bella's friendship develops over time, especially considering Bella's mermaid secret. It's about their loyalty and how they support each other.
A great plot twist could be that the pregnancy is not as straightforward as it seems. There could be some sort of magic or curse involved that changes the nature of the baby as it develops. For example, the baby could start to show signs of being a different species than expected. Also, what if there are other characters who want to claim the baby as their own for power or some other ulterior motive? This could lead to a lot of conflict and drama in the fanfiction.
One common theme is friendship turned into love. Since Bella and Will are friends in the h2o universe, many fanfictions explore how that friendship can gradually develop into something more romantic. Another theme could be adventure. They might go on some underwater adventures together that strengthen their bond.
One common theme is friendship. Since they are both part of the h2o world, their friendship is often explored. They might support each other through tough times, like when dealing with other characters who don't understand their mermaid/merman nature.
One challenge could be communication. Since Bella is a mermaid and Will is a human, they might have different ways of expressing themselves. For example, mermaid language and signs might be difficult for Will to understand at first. Another challenge could be dealing with the different laws and rules of their two worlds. Mermaid society might have rules about interacting with humans that Bella has to navigate while Will might face problems in his human world if he is seen spending too much time with a'mysterious girl' like Bella.
Often, a plot twist might involve the nature of the baby. In some fanfictions, the baby could have powers that are not just a combination of vampire and human, but something entirely new. It could be a power that is so strong it attracts other supernatural beings, not just vampires. This would change the dynamics as Bella and Edward would have to protect the baby from new threats.