A common family - friendly theme is friendship. The fanfic could explore how Lucifer, who is often seen as a complex and somewhat aloof character, forms a true friendship with the reader. They might start off as strangers but gradually become best friends through shared experiences like solving a mystery or helping out in the celestial realm. It's really endearing to see their bond grow.
A prevalent theme is also the idea of forbidden love. Lucifer being who he is, a relationship with him in the context of the 'Supernatural' universe is often seen as something that goes against the norms. There's also the theme of temptation. Lucifer is the tempter in the show, and in fanfics, he might be tempting the reader character in various ways, whether it's with power, knowledge, or something else. Fanfics may also delve into the idea of the reader character being able to see a different side of Lucifer that others don't, like a more vulnerable or misunderstood side.
One plot idea could be that the male reader is a new recruit in Gamora's team. They start off not getting along because of their different approaches to missions. But over time, they learn from each other and develop a deep respect which then turns into a romantic relationship. Another could be that the male reader has a special power or skill that Gamora needs to complete a crucial mission for the greater good of the galaxy, and during their time together on the mission, they fall in love.
One common theme is friendship. The fanfics might depict Suga and the reader as friends who support each other through various challenges. For instance, the reader could be going through a tough time at school or work, and Suga offers his advice and encouragement. Another theme is mutual inspiration. Maybe the reader is an aspiring musician and Suga's story and talent inspire the reader to pursue their dreams, and vice versa.
Maybe the male reader is a childhood friend of Katsuki Bakugou. Mitsuki Bakugou has always seen the male reader as part of the family. As they grow up, the male reader starts to develop feelings for Mitsuki Bakugou that are more than just friendly, and the story could explore how they deal with these new emotions in a family - friendly and respectful way.
A plot could be where the male reader is a transfer student at the Senran Kagura academy. He has unique abilities that the girls initially don't understand. As they train together, they learn from each other and form a strong bond of friendship. Another idea is that the male reader is a journalist who is doing a story on the Senran Kagura girls. Through his interviews and time spent with them, he becomes part of their world in a positive and non - romantic way at first, but then a deeper connection develops.
Friendship is a huge theme. They could start as strangers and gradually become good friends. They might have common interests like a love for a certain type of food or a particular type of jutsu. Also, the theme of protecting the village together is quite common. Boruto and the reader join forces to defend the Hidden Leaf from threats.
One positive aspect is the exploration of character depth. Writers can delve into Lunafreya's kind and selfless nature and how the male reader character might be influenced by her. It can also be a great way to expand on the FFXV universe's lore and relationships in a way that is accessible to a wider audience, including younger fans.
The theme of trust is quite prevalent. Given Lucifer's reputation, the reader might struggle with trusting him at first. This can create a lot of tension and drama in the story. And there's also the theme of sacrifice. Either Lucifer or the reader may have to make sacrifices in order to be together or to achieve a certain goal in the story.
Maybe the reader is an artist who travels to Romania in search of inspiration. Romania, with its rich history and beautiful scenery, becomes the muse for the reader. They could collaborate on a project to promote Romanian art and culture to the world. Or, the reader could be a volunteer helping with a conservation project in Romania. Romania, as a character, is initially skeptical but then sees the value in the reader's efforts and they form a bond over their shared love for the country's natural beauty.
A plot idea could be that the reader is a time - traveler who accidentally lands on Pluto. There, they find Pluto as a lonely entity. The reader decides to stay for a while and starts sharing stories of different worlds and times with Pluto. In return, Pluto shows the reader its own history and hidden treasures. This could be a story about the exchange of cultures and the building of a special bond between two very different beings.