A story could be set in a future where the worlds of Marvel and DC have merged. Spiderman and Starfire are part of a new superhero team. They have to deal with the cultural differences between their two groups of heroes as well as face off against new villains created by the merger of the two universes.
One idea could be that Spiderman 2099 has to team up with a group of rebels from a future dystopia to take down a powerful corporation that controls the city. They might face advanced technology and dangerous enforcers.
Another idea is a time - travel fanfiction. Spider - Man could be sent back in time to when his Uncle Ben was still alive. He would have the chance to prevent his uncle's death, but he'd also have to deal with the consequences of changing the timeline, like how it might affect his own development as a hero.
One idea could be that Naruto, with his ninja skills, gets transported to Starfire's universe. There, his unique abilities draw the attention of many characters, leading to the formation of an accidental harem. For example, his ability to make shadow clones might be seen as a very useful and cool power. Another plot could involve a common enemy that forces Naruto and Starfire, along with other characters who are part of the harem, to work together. This could lead to some interesting dynamics as they all come from different backgrounds and have different ways of fighting.
Another plot could be that a magical experiment at Hogwarts creates a portal to Starfire's world. Harry and some of his classmates end up there. Starfire has to help them get back home while also protecting her own planet from the dark wizards who have followed them through the portal.
One idea could be that the baby has some unique superpowers that are a combination of Nightwing's skills and Starfire's alien abilities. For example, it could have enhanced acrobatic skills like Nightwing and the power to fly or shoot energy blasts like Starfire. Another plot could revolve around the challenges they face as new parents in a world full of villains who might target their baby. They have to balance protecting their child while still being superheroes.
Perhaps a plot where Starfire and Robin get married in a secret ceremony due to security reasons. But then they have to deal with the media finding out and all the chaos that ensues. This could involve protecting their friends and family from paparazzi and supervillains who might want to use the situation to their advantage.
One idea could be exploring what would happen if Spider - Man had to team up with a villain to stop a greater threat. For example, partnering with Doctor Octopus to take on an alien invasion.
One idea could be that Spider - Man has to face a new villain who has the power to manipulate his darkest fears and turn them into reality. Another could be a version where Spider - Man is wrongly accused of a major crime and has to clear his name while also dealing with the city turning against him.
A cool plot could be that there is a glitch in the game world that starts causing real - world disasters. Spiderman has to figure out how to fix the glitch by going deeper into the game code, all while still dealing with his regular villains.
Another plot could be that there's a threat to both Raven and Starfire's families. They have to work together, with their families' support, to defeat this threat. It could be an evil entity that targets both Earth and Starfire's home planet. Through this adventure, their families learn to trust and rely on each other, and Raven and Starfire's friendship deepens into something more like family on a deeper level.