Often, there's also a theme of discovery. The human discovers a new world through Optimus Prime, and Optimus discovers new aspects of humanity. This can lead to a lot of character growth in the fanfiction. For instance, the human may become more brave and self - less, while Optimus may start to value human emotions more.
The theme of sacrifice can also play a role. Whether it's the human being willing to sacrifice for Optimus or vice versa, it adds an element of drama. In some fanfictions, the relationship might also face external challenges, like from other Autobots who don't understand the connection between Optimus and the human.
One common theme is the idea of the forbidden or unexpected relationship. Given that Optimus Prime is an alien robot and the human is, well, a human, their relationship defies the norms. Another theme could be mutual protection. The human might be in a situation where they need Optimus' protection, and in the process, a deeper bond forms.
In such fanfiction, the story could take many forms. It might start with the human getting involved in the world of the Autobots. As the relationship develops, there could be moments of self - discovery for both the human and Optimus Prime. For example, the human could learn about courage and self - sacrifice from Optimus, while Optimus might come to understand the fragility and yet the strong will of humans.
Yaoi fanfiction involving Optimus Prime and Bumblebee can be a creative exploration for fans. However, it often takes the characters out of their traditional heroic and platonic relationship in the Transformers universe. Some people might enjoy writing or reading it as a form of alternative storytelling that delves into different emotional and physical relationships between the two iconic characters.
One idea could be that Optimus Prime turns into a human mechanic. He uses his knowledge of machinery from his days as a Cybertronian to revolutionize car repair in a small town. People are amazed by his skills and he secretly uses his new form to keep an eye out for any Decepticon threats.
One common theme could be the struggle between his duties as a leader and his new - found love. For example, he might have to choose between protecting his team and being with the one he loves. Another theme could be the acceptance of his love by his comrades. Since he is in a position of great responsibility, they might be initially skeptical. Also, the idea of an inter - species love could be explored, considering Optimus Prime is a Cybertronian.
One popular theme is friendship. In many fanfictions, Optimus Prime and Bumblebee's bond extends to their interactions with humans. They protect humans not just as a duty but as friends. Another theme is adventure. The Autobots, including Optimus and Bumblebee, often embark on exciting adventures with humans, exploring new places and facing new enemies. Also, the theme of self - discovery is common. Humans in these fanfictions might discover new strengths or abilities while interacting with the Transformers, and the Transformers themselves may also learn more about humanity and their own place in the universe.
One common theme is friendship. Since they are from different species, their friendship is quite unique. For example, in many stories, they learn to trust each other despite their differences.
Another theme could be about cooperation. They often team up to overcome challenges, whether it's a powerful enemy in both their worlds or some sort of natural disaster. In these fics, their combined skills and abilities are crucial. For instance, Ash's quick thinking and Optimus Prime's strength work together to save the day. Also, the theme of discovery is present as they learn about each other's worlds and cultures.
One interesting storyline could be a story where Megatron is injured in battle and Optimus Prime, against all odds, decides to take him in and nurse him back to health. During this time, they start to see each other in a different light and develop an unexpected bond.
The allure of the forbidden or the different might also contribute to its popularity. In the normal Transformers narrative, there is no such romantic or sexual relationship between them. Yaoi fanfiction about them breaks the norms and offers something new and exciting for those who are into this type of genre. It allows for a lot of emotional and physical exploration between the two characters, which can be appealing to some fans.
One interesting story could be about a human who gets chosen by Optimus Prime to be his liaison on Earth. The human helps Optimus understand the complex social and political situations among humans better. They form a deep bond of friendship and together face off against the Decepticons who are trying to manipulate human leaders.