The appeal lies in the characters themselves. Superboy's superhuman strength and abilities combined with Wonder Girl's combat skills and Amazonian powers make for a great pairing. Fanfiction writers can create all kinds of stories around them.
Wonder Girl's fate in the comics can be ambiguous. Sometimes she meets her end, but it often depends on the creative direction and narrative choices of the writers.
Fanfiction about Superboy and Wonder Girl can be really exciting. It often takes their established characters and throws them into new and unique situations. Writers might explore their relationship in ways not shown in the original comics, like a deep friendship that overcomes various challenges in a new adventure.
Wonder Girl's origin is a story of female empowerment and heroism. She hails from the Amazonian society, a place filled with strong and independent women. Her journey begins with her upbringing on Paradise Island. There, she is exposed to the ways of the Amazons - their combat techniques, their values, and their sense of justice. She is mentored by the elder Amazons, who see her potential. Her powers are not just physical but also mental, as she is taught to think strategically and be a leader. As she grows, she decides to venture out into the world of man, bringing with her the Amazonian ideals and her own brand of heroism. She uses her powers, whether it's her super strength to stop a runaway train or her agility to dodge enemy attacks, to make the world a better place. She is a symbol of hope for young girls, showing that they can be just as strong and heroic as any male superhero.
Power - control is also a common theme. She might struggle with how to use her powers properly or face the consequences of using them in the wrong way. Love and romance can also be a theme, like her having a secret crush on another hero or someone she meets during her adventures.
One idea could be that Sonic accidentally gets transported to the world of Wonder Girl. He teams up with her to stop a common enemy that is threatening both their worlds. Maybe an evil scientist who wants to steal Sonic's speed and Wonder Girl's powers.
Well, if 'wonder girl' is a character, perhaps in some fictional or real - life scenario she got into a situation where she had a wedgie. It might be a humorous or embarrassing story about her. But again, without more details, it's all speculation.
I really like the fanfiction titled 'Robin's New Beginnings'. It takes an interesting approach by exploring what would happen if Robin had to start over in a new city. The author does a wonderful job of keeping her essence intact while presenting new challenges and relationships for her.