Maybe the baby gets lost in a strange dimension. Nightwing and Starfire then have to team up with their superhero friends to find their baby. This could lead to all kinds of adventures as they explore different realms and face new enemies. Along the way, they could discover more about their own relationship and how much they've grown since having the baby.
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.
Maybe there's a situation where a powerful artifact is discovered that has a connection to both Nightwing's family and Starfire's alien heritage. They embark on a quest to understand the artifact's true nature. During this journey, their relationship grows stronger as they face various obstacles and puzzles.
A plot could revolve around a misunderstanding between Nightwing and Starfire. For example, Starfire might misinterpret one of Nightwing's actions as him not trusting her. This could lead to some tension between them at first, but then they would have to work through it and in the process, their relationship could grow stronger. They could have deep conversations about their feelings and past experiences that bring them closer together.
One idea could be a story where Baby Nightwing is discovered by the Justice League. They have to figure out how to take care of him while also protecting him from villains who might want to use him. Another could be a time - travel story where an older hero goes back in time and meets Baby Nightwing, and has to ensure his safety so that the future doesn't change.
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 a story where Nightwing has to take over Batman's duties temporarily in Gotham. He faces a new villain who is specifically targeting Batman's absence and Nightwing has to prove himself not just as a replacement, but as a hero in his own right.
A great plot could be that there's a new vampire in Gotham who is creating chaos by turning innocent people into vampires. Nightwing, with his detective skills, starts to investigate. As he gets closer to the truth, he discovers that the vampire has a personal vendetta against him. It could be an old enemy who was turned into a vampire and now wants to make Nightwing's life a living hell.
Another plotline might involve them facing external threats as a married couple. Enemies from their past could target their relationship, seeing it as a weakness or a way to get to them. They would then have to work together, using their combined skills and the power of their love to defeat these threats.
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.
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.