Obviously, Scott McCall is one of the main characters. His baby sister is also a central figure. Depending on the fanfiction, characters like Stiles, who is Scott's best friend, could also be important. They might help Scott protect his sister or be involved in her upbringing in some way.
There could be a story where the baby sister is the key to solving a big mystery in the supernatural world. She has a unique connection to an ancient artifact or a prophecy. Scott and his friends initially don't realize her importance, but as the story unfolds, they discover that she holds the answers they've been looking for. This leads to a lot of character development for her and strengthens the bond between her and Scott as they work together.
One common theme is family. It shows how Scott and Hope build a family unit around their baby. Another theme is protection, as they are superheroes and need to keep their baby safe from villains.
Love and family are common themes. The love between Scott and Allison grows even deeper with the arrival of a baby. It also shows how they form a new family unit and how their friends become part of that extended family.
Their relationship would likely become more deeply bonded. They would have a shared responsibility now, which would bring them closer. They'd be more in tune with each other's needs as they both focus on the well - being of their baby.
One possibility could be that the story focuses on how Scott and Malia adjust to being new parents. They might face challenges like dealing with the baby's sleepless nights. Maybe Scott uses his werewolf abilities in unique ways to protect the baby, like sensing danger before it arrives. And Malia, with her own fierce nature, could be an extremely protective mother.
One great piece of Scott and Hope baby fanfiction could be 'A New Beginning for the Family'. It focuses on how Scott and Hope adapt to having a baby in their superhero lives, showing their love and the challenges they face.
I'm not sure of a specific one, but generally, a fanfiction where they raise their baby successfully, and the family is happy and healthy would be a happy - ending one. It could end with the baby taking their first steps on the ice with Tessa and Scott cheering them on, showing that they are passing on their love for skating to the next generation.
One popular 'Scott and Allison baby fanfiction' might be 'A New Beginning for Scott and Allison's Baby'. It often explores how their baby could change the dynamic in the supernatural world they were part of. It might show the baby having some special abilities or being a symbol of hope for the future.
There could be various people writing 'masky baby sister fanfiction'. It might be fans of the Masky character who have a creative streak and want to explore different scenarios involving him and a sister figure.