Peter could be a curious character. When he finds the 7 puppies, his curiosity is piqued. He wants to know their story, where they came from, and why they were in the situation he found them in. This curiosity drives him to explore more about the puppies and in the process, he discovers more about himself too.
Perhaps the story is set in a small town where Peter stumbles upon these 7 puppies that are abandoned. He then forms a special bond with each of them and the fanfiction could detail how their relationships grow. He might teach them tricks, take them on walks, and protect them from various threats in the town. As the story progresses, the puppies could also change Peter's life for the better, making him more responsible and caring.
The plot could revolve around Peter trying to find homes for the 7 puppies. Since he already has 7 children, he might see this as a way to teach his kids about kindness and helping others. He could enlist the help of his family to take care of the puppies until they find suitable owners, and along the way, they face various challenges like financial constraints in feeding the puppies or dealing with local regulations about stray animals.
Peter's family could have a mixed reaction. His partner might be initially worried about the extra work and cost of taking care of 7 puppies. But the children, depending on their ages, could range from being extremely excited and seeing it as a new adventure to being a bit hesitant. For example, the older children might be more concerned about practical matters like who will clean up after the puppies, while the younger ones are just eager to cuddle them.
Peter could be any number of things. Maybe he's a unique creature that doesn't exist in the real world, like a talking animal with superpowers. Or he could be a regular animal that Deadpool just decides to name Peter and make into his pet.
Deadpool might be really confused at first when he finds Smil Peter. He could start making his typical wisecracks and jokes about this strange version of Peter. Maybe they end up teaming up to fight some common enemy in a really wacky way.
If he likes it, he could start writing his own sequel to the fanfiction. Since he has a wild imagination, it would be full of his unique brand of humor and action. He might also try to get it published in some sort of superhero - themed magazine or website.
Maybe in the fanfiction, Flash discovers Peter's identity in a very unexpected way, such as seeing Peter's Spider - Man suit by accident. He then has to decide whether to keep the secret or not. He might struggle with his own jealousy towards Peter and the newfound knowledge. If he decides to keep it a secret, it could lead to an unlikely friendship between them, with Flash helping Peter in small ways without Peter knowing it's him.
In this fanfiction, Deadpool finding a pet Peter at the market could lead to a really unique story. Deadpool is known for his erratic behavior. He could dress Peter up in the most ridiculous outfits and take him to all the strange places he frequents. They might also get into trouble with some of Deadpool's enemies who don't understand why he has this strange pet. It could be a story full of humor and unexpected twists as Deadpool tries to take care of Peter in his own, unconventional way.
Some smaller, niche fanfiction platforms might also have what you're seeking. However, these platforms may not be as well - known or as easy to navigate as the big ones. You could also try reaching out to fellow fans of Deadpool and Peter through online forums or groups. They might be able to share some personal collections or recommend specific authors who write this kind of fanfiction.