Well, perhaps they have an argument first. Raven is usually so reserved and Beast Boy is more carefree. They could be arguing about how to handle a certain situation with the Titans. But then, as emotions run high, instead of more yelling, they end up kissing. It could be a turning point in their relationship where they start to see each other in a new light and have to deal with the new feelings that come with that kiss.
In a story, there could be a situation where a magical curse is spreading. Beast Boy, seeing Raven in the path of the curse, uses his own body to block it. As a result, he is infected by the curse which starts to harm him physically and mentally. Raven then embarks on a journey to find a cure, all the while taking care of Beast Boy and their relationship deepens through this difficult time.
One popular storyline could be them going on adventures together to save their city or the world. They might face a powerful new villain and have to combine their unique powers to defeat it. Another could be a story where they gradually discover their feelings for each other and how that affects their relationship with the rest of the Teen Titans. For example, they might try to keep it a secret at first but then realize they can't hide it forever.
The main storylines often revolve around their adventures, battles against villains, and the development of their friendship and powers.
One interesting storyline could be about their relationship development. Maybe they start off as just teammates but gradually form a deeper bond. Another could be a mission they go on together where they have to face a powerful villain using their unique powers. For example, Beast Boy's shape - shifting ability and Raven's dark magic.
Perhaps there is a magic user who wants to capture Raven for her powers. Beast Boy tries to stop the magic user and ends up getting hurt. This could be a situation where the magic user casts a spell that Beast Boy tries to absorb or deflect to protect Raven. His injury then becomes a significant part of the story as Raven has to figure out how to save him and deal with her feelings for him at the same time.
One of the key storylines is when they have to save the world from a major threat, showing how their unique powers combine. Another could be a focus on their emotional struggles and how they support each other through tough times in the comic universe.
The main storylines often revolve around their unique relationship and the adventures they have together while facing various villains and challenges.
In a story, they could be competing in a friendly race. During the race, they face some challenges together. Rainbow Dash might get injured and Fluttershy uses her kindness and care to help her. This act of selfless love makes Rainbow Dash look at Fluttershy in a new light, and Fluttershy realizes her own strong feelings. So, they end up kissing as a symbol of their new relationship.
One possible storyline could be that they are on a joint mission against a powerful enemy. In the heat of battle, they share a moment of connection and kiss. It might be a one - time thing that leaves them both confused about their feelings, especially since they come from different hero groups. Another could be in an alternate universe where they are not bound by the same rules as in their normal universes, and they develop a relationship over time that leads to that kiss.
A good fanfiction about their kiss could also delve into the reactions of the other Teen Titans. Maybe some are happy for them, while others are a bit surprised at first. It can add more depth to the story and show how their relationship affects the whole team dynamic.