One idea could be that they are on a dangerous mission together. In the heat of the moment, as they narrowly escape a trap, their adrenaline is high and they share a passionate kiss. It's a spontaneous expression of their unspoken feelings that have been building up during all their adventures.
You can start by writing a short prologue about their relationship up to that point. What kind of adventures have they had together? How have their feelings for each other been evolving? Then, introduce the event that will trigger the kiss. It could be a revelation about one of their pasts that makes the other see them in a new light and leads to the kiss.
Perhaps a plot where Tara and Eliot have to go undercover while she's pregnant. They have to hide her pregnancy from the targets, which creates all kinds of comical and tense situations. Or a story where the pregnancy makes them re - evaluate their own lives and their future in the team. Maybe they start thinking about settling down a bit more, which causes some friction as well as some heartwarming moments within the team.
Yes, there are likely some out there. Fanfiction communities often explore different scenarios for beloved characters. You can start by looking on popular fanfiction websites like Archive of Our Own. Just search for 'Eliot and Parker pregnant' in the search bar, and it might bring up relevant stories.
Romance is also a fairly common theme. Fans like to imagine a romantic relationship between them, with stories that might show their first date or how they confess their feelings for each other. It adds an interesting layer to their already complex relationship.
One plot idea could be Peter trying to hide his homelessness from his friends and enemies while still being Spider - Man. He might have to find creative ways to change into his suit in public restrooms or abandoned buildings. Another idea is that he forms an unlikely alliance with other homeless people in the city who help him keep his identity a secret and in return, he uses his powers to protect them from street thugs.
A really interesting plot could be that Gormora and Peter Parker accidentally swap powers. Peter has to figure out how to control Gormora's powers while she tries to adapt to his spider - abilities. It would be a fun exploration of how they both view and use each other's powers. Also, a plot where Gormora's past enemies from her own world come to Earth, and Peter has to help her defend it, while also dealing with his own superhero duties in New York. This could create some great action - packed and emotional scenes as they bond over protecting the planet.
Maybe it could be about Peter Parker experiencing five different alternate universes where he has different relationships with his friends and family. In one universe, he might be closer to Ned, in another he could have a different dynamic with MJ. Each time he jumps to a new universe, he has to adapt and face new challenges.
One idea could be that Peter tries to find a way to coexist with Venom without losing his own mind. He could use Venom's powers for good in a new and unique way, like being able to heal people with Venom's symbiotic abilities. Another plot could be Venom getting separated into multiple parts and Peter has to track them all down before they cause chaos. Maybe one part of Venom attaches to a villain and gives them enhanced powers that Peter has to face.
Some fanfictions might explore the idea of Peter Parker as an intern getting a mentor who is not from the usual Spider - Man lore. For example, an alien scientist who has a completely different view on ethics and science. This could cause Peter to question his own beliefs and values. Or perhaps Peter's intern work leads him to create a new piece of technology that has unintended consequences, like accidentally creating a new super - villain or a power - enhancing device that falls into the wrong hands. This would set off a chain of events that Peter has to deal with, all while trying to balance his intern duties and his life as Spider - Man.
Perhaps the stalker is a new character who has a misguided admiration for Spider - Man. They think that by stalking Peter, they can get closer to the superhero lifestyle. They might leave little gifts or notes for Peter, which at first seem harmless but gradually become more and more intrusive, making Peter feel very uncomfortable and on edge.