Maybe a girl with a similar power. For example, a girl who can communicate with animals telepathically. They would have a deep understanding of each other because of their shared connection to the animal world. They could go on adventures together, using their powers to help animals in trouble. Their relationship would be based on mutual respect for their powers and a shared passion for animals.
In the fanfiction, perhaps Beast Boy's girlfriend could be a new superhero in town. They meet during a battle against a common enemy. She first sees his brave side when he's in the form of a fierce beast, and she's drawn to him. As they get to know each other more, they start to date. Their relationship could be filled with adventures as they fight crime together and also deal with the normal relationship stuff like jealousy and misunderstandings.
There could be. Fanfiction is a vast world, and fans often come up with unique and sometimes unexpected storylines. Beast Boy and Starfire are both popular characters, so it's not unlikely that someone has written a fanfiction with this plot. But it might be hard to find among the countless other fanfictions.
One great 'Beast Boy girlfriend' fanfic is 'Green Love'. It beautifully explores a relationship where the girl is understanding of Beast Boy's powers and his insecurities. It has a lot of heartwarming moments between them.
It could be an ancient and powerful wizard. Maybe the wizard sees potential in Beast Boy and decides to grant him new powers to help him in his fight against evil.
A good 'Beast Boy girlfriend' fanfic should have a well - developed relationship. The chemistry between Beast Boy and his girlfriend should be believable. For example, if they start off as friends and gradually fall in love, it should be shown in a natural way.
One possible theme could be responsibility. Beast Boy would have to face up to the fact that he is going to be a father, which is a huge responsibility. Another theme might be acceptance within the Teen Titans team. They would need to accept this new situation and support their friends.
In the fanfiction, Beast Boy could have eaten all of Raven's favorite snacks without asking. This simple act of thoughtlessness might set her off. Or he could have interrupted her meditation multiple times, which is very important to her. Also, if he was being too over - confident in a situation where Raven knew they needed a more careful approach, his cockiness could be a reason for her anger.
Well, he might become even more powerful and be able to transform into new and amazing creatures. Maybe he could gain the ability to fly in his animal forms, which would be really cool.
It could be a new character, like a foreign exchange student from Beauxbatons. She has a different charm and magic style compared to Hogwarts students, which catches Harry's eye.