Adventure. Given that they are both superheroes in the DC universe, many fanfictions will have them going on adventures together. It could be fighting a new super - villain or exploring a mysterious place. For instance, they could be on a mission to save Tamaran (Starfire's home planet) together.
Love and Romance. It's a common theme as fans love to explore the potential romantic relationship between them. They might write about their first date, how they confess their feelings, etc.
Love and friendship are common themes. Their relationship has always been a mix of deep love and strong friendship in the fanfictions. They support each other through various challenges.
One common theme is love and reunion. Since they have a history, many fanfictions focus on them getting back together or realizing their feelings for each other again.
One common theme is their relationship. Whether it's a romantic relationship or a deep friendship, many fanfictions explore how they interact and support each other. For example, some stories might focus on how Nightwing helps Starfire adjust to life on Earth in the Young Justice context.
One common theme is the exploration of their contrasting personalities. Starfire is often seen as more outgoing and positive, while Raven is more reserved and brooding. Fanfics usually play with how they overcome these differences.
Love and romance are also quite prevalent. The stories may explore how Starfire and the OC fall in love, dealing with cultural differences (since Starfire is from another planet). There could be cute moments like Starfire teaching the OC about Tamaranian customs while the OC shows Starfire things about Earth culture.
One common theme is trust. Since Red X is a rather mysterious character, Starfire often has to learn to trust him or not. For example, in many fanfics, they start off as distrustful of each other but gradually build trust as they face challenges together.
The theme of self - discovery is also prevalent. As they fall in love, both Starfire and Robin learn more about themselves. They grow as individuals while also growing closer as a couple, which is a really engaging aspect in a lot of Starfire x Robin fanfiction.
One common theme is the struggle between good and evil. Nightwing represents the good side, while Slade often toes the line. Their interactions often revolve around this dichotomy.
One common theme is friendship development. They often start as acquaintances or even rivals and then grow to be close friends. Another theme is trust - building. Since they both have their own secrets and insecurities, a lot of fics focus on how they learn to trust each other.
One common theme is the clash of cultures. Harry comes from a world of magic wands and hidden wizarding society, while Starfire is from a more science - fiction - based world with alien technology. Another could be the idea of friendship or romance developing between characters from two very different backgrounds.