Perhaps in the fanfiction, there could be a magical element involved since it's related to H2O. Maybe the pregnancy has some sort of connection to Cleo's mermaid powers. For example, the unborn child might show signs of having special powers even before birth, which causes both excitement and worry for Cleo and Lewis as they try to understand what it all means.
An interesting twist could be that Lewis discovers he has some sort of genetic anomaly that might affect the baby. This throws them into a panic as they search for a solution. Maybe they have to turn to some of the other mermaids or a mysterious underwater creature for help.
Imagine a fanfiction where Cleo and Lewis are in a bit of a dangerous situation. Maybe they are exploring an underwater cave and get trapped for a while. They start to worry but also realize how much they mean to each other. As they find a way out and reach the surface, they are so relieved and filled with joy that Lewis just grabs Cleo and kisses her passionately, a kiss that is a celebration of their survival and new - found closeness.
Well, in a fanfiction about Cleo and Lewis kissing, it might be that they've been through a lot of misunderstandings. They've been friends for a long time but there were always unspoken feelings. One day, after a big argument where they finally clear the air, they realize how much they love each other and that's when the kiss happens. It's a moment of truth and a new start for their relationship. This kiss could be the turning point that leads them to a more committed and loving relationship in the future of the fanfiction.
The fanfic could show how they handle the pregnancy physically and emotionally. For example, Cleo might have morning sickness and Lewis has to be there to support her. They could also attend prenatal classes together, which would be a great opportunity for them to bond more and also learn about what to expect during the pregnancy and childbirth.
Maybe in the fanfiction, they discover the pregnancy during a time when they are in the middle of an important project or adventure. This causes them to re - evaluate their priorities. They might start making plans for the future, like looking for a bigger place to live and preparing for the baby's arrival. For example, they could start shopping for baby clothes and furniture together.
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 plot could involve a new character who is jealous of the mermaids' abilities in 'H2O: Just Add Water'. This character kidnaps one of them to try and take their powers for themselves. The kidnapped mermaid has to figure out how to escape while her friends search for her. They could face many obstacles like false leads and traps set by the kidnapper. In the end, they would likely use their friendship and unique skills to overcome the situation.
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.
One possible plot could be that the characters from H2O, who have the power to transform into mermaids in water, end up in the wizarding world of Harry Potter. They could be mistaken for some kind of new magical creature. The Hogwarts students might be both intrigued and a bit wary of them. Maybe they could help the students in a Triwizard Tournament task that involves water in some way.
Well, perhaps the H2O girls are being chased by some sea monsters that are normally under Percy's jurisdiction. Percy and his demigod friends come to their rescue. In the process, the H2O girls learn about the world of Greek mythology and demigods. They could then join forces to fight off other threats that come their way, like an evil sea god who wants to take over both their worlds.