I'm not aware of any particularly popular ones with exactly this combination. Fanfiction is a vast world, and while there are countless stories about Tony and Peter, these specific elements might be a bit niche. It's possible that someone out there has written it, but it may not have gained mainstream popularity yet.
Well, for a fanfiction like this, it might start with Peter suddenly getting hiccups in the middle of a conversation with Tony. And Tony, being his usual self, decides to use this as an opportunity to manipulate the situation to his advantage, perhaps to teach Peter a lesson or just for his own amusement. However, this would be a rather unorthodox and fun take on their relationship in the fanfiction world.
Well, perhaps it could be about Tony and Peter having some sort of adventure where hiccups play a strange role. Maybe they are in a world where hiccups are a sign of a special power, and they have to figure out how to control it while dealing with some sort of villain. It could also involve them learning about the origin of these hiccup - related powers in their universe.
It could be a scientist who is jealous of Tony's inventions. He creates a device that causes the hiccups as a way to disrupt Tony and Peter. His goal might be to steal Tony's technology while they are distracted by the hiccup problem.
Peter could stand up to Tony. By showing his strength and not taking Tony's meanness lying down, he might earn Tony's respect. For instance, if Tony makes a snide comment, Peter could give a smart comeback that makes Tony see him in a new light.
One aspect to consider in 'possessive Tony and Peter fanfiction' is the nature of their relationship. It might explore themes of protection. Tony could be possessive in a way that he wants to keep Peter safe from the various dangers in the Marvel universe, like powerful villains.
Yes, there are likely some fanfictions out there with this premise. Fanfiction often explores unique and unexpected relationships between characters. Writers might create a scenario where Peter Parker is scared of Tony Stark for various reasons, like Tony's power, his temper, or some miscommunication between them.
Well, it could be that in the fanfiction, they argue about technology. Peter, being the brilliant young mind that he is, might have different ideas on how to use or develop Stark tech compared to Tony. Tony is more experienced and perhaps set in his ways, so when Peter challenges him, an argument ensues.
Well, a simple fanfiction idea could be that Peter loses his real father at a young age and Tony fills that void. Tony starts teaching Peter things like how to fix cars or build advanced technology, just like a dad would teach his son useful skills.
One possible fanfiction could be about Peter seeing Tony as a father figure. Maybe Peter gets into some trouble at school, like a bully situation, and Tony steps in to give him advice on how to handle it. Tony could share his own experiences of facing difficulties when he was younger, and through this, their bond as a sort of father - son duo deepens.