Well, a great plot could be that Baby Bumblebee discovers a hidden power within himself, and Arcee is the only one who believes in him at first. They go on a journey together to understand this new power. Also, they could be on a mission to retrieve a special artifact, and along the way, Baby Bumblebee's naivete and Arcee's experience create a lot of humorous and heart - warming moments.
One idea could be that Baby Bumblebee gets lost during a battle and Arcee is the one who finds him. She then has to protect him while they try to find their way back to the Autobot base. Another could be a story where Arcee teaches Baby Bumblebee some important combat skills in a fun and unique way. Maybe she creates a sort of training course just for him.
One plot idea could be that Bumblebee and Arcee have to team up to protect a powerful artifact from the Decepticons. They start off not getting along well due to their different fighting styles, but as they face challenges together, they learn to respect each other and become a great team.
There could be a fanfiction where Bumblebee loses his memory. Arcee takes it upon herself to help him regain it. She takes him to all the places they've been together, shares their memories, and tries to jog his memory. As she does this, she also realizes how much Bumblebee means to her and how important their relationship is. This is a story about friendship, loyalty, and the power of memories.
In the fanfiction, Jack and Arcee could be magically merged into one being for a short time, and during that time, they create a new form of life. They then have to deal with the consequences of this unexpected creation and learn to be parents to this new being.
A great Arcee and Bumblebee fanfiction could revolve around a race. The two are competing in a high - stakes race across Cybertron. Along the way, they face various obstacles and also learn more about each other's driving styles and personalities.
One interesting fanfiction could be about Bumblebee and Arcee teaming up for a secret mission. They might face challenges that test their friendship and combat skills. For example, they could be infiltrating a Decepticon base where they have to rely on each other's unique abilities to succeed.
One idea could be a baby bumblebee getting lost in a strange new world on Earth and befriending a young human who helps him find his way back to the Autobots. Another could be baby bumblebee's first encounter with his own abilities and how he accidentally causes some chaos among the Autobots while trying to show off. Or perhaps a story where baby bumblebee discovers a hidden power within himself during a dangerous mission.
One interesting aspect could be how their fellow Transformers react. Their comrades might be shocked, supportive or confused about the situation. Another aspect is how Bumblebee and Arcee themselves adapt to the changes. It could show a different side of their relationship, more nurturing and protective.
The contrast between their characters. Bumblebee is often portrayed as more light - hearted while Arcee is tough. When they kiss, it's like two different worlds colliding in a romantic way.
One idea could be that Jack discovers a hidden power within Arcee that she was not aware of herself. They then have to go on a quest to find out more about this power and how it can be used to help the Autobots in their fight against the Decepticons. Another plot could be that Jack gets lost in a dangerous part of Cybertron and Arcee has to brave all sorts of perils to find and rescue him.
Their relationship can be developed by having them rely on each other in dangerous situations. For example, when facing a powerful Decepticon, Arcee protects Baby Bumblebee at first, but then later he saves her with his quick thinking. This creates a mutual respect between them.