Another theme is the power struggle. Danny has his ghost powers, and sometimes Paulina might envy or be in awe of them. In some fanfictions, this leads to a situation where she tries to gain similar powers or she has to come to terms with the fact that she is 'ordinary' compared to Danny in that regard.
One common theme is the exploration of their relationship. Whether it's a friendship or a budding romance, it's often at the center of the story. For example, in many fanfictions, Danny tries to protect Paulina from ghosts, which shows his care for her.
The theme of self - discovery is also present. Paulina might discover new sides of herself, like a hidden strength or courage, often with the help of Danny Phantom. This could be related to dealing with the supernatural events that occur in their town.
One common theme is transformation. Paulina often has to transform her view of Danny from a loser to someone she can respect or even like. For example, in many fics, she starts to notice Danny's heroic side as Danny Phantom.
One common theme is self - discovery. When Danny overshadows Paulina, both characters often learn something new about themselves. For example, Paulina might discover that there's more to Danny than she initially thought.
One common theme is mystery. Since it's related to 'phantom', there's often an air of mystery around the character of Paulina. Another theme could be love and relationships, exploring how Paulina interacts with other characters in a romantic or platonic way.
One interesting storyline could be Paulina finally realizing Danny Phantom and Danny Fenton are the same person. She could initially be shocked but then come to accept it and they team up to fight a new powerful ghost. It would add a whole new dynamic to their relationship.
Fanfiction about Danny Phantom and Paulina often explores an alternate relationship dynamic. It might show a different side of their characters. For example, it could delve into how Paulina might see Danny's heroic side in a more personal way, rather than just as the popular ghost - fighting hero. It can also be a way to give fans a sense of a relationship that wasn't fully explored in the original show.
One popular trope is the 'unlikely couple' aspect. Since Danny and Paulina seem so different in the original show, fanfiction often plays on this by bringing them together. Another is the 'danger - brings - them - closer' trope, where a new ghostly danger forces them to rely on each other.
A plot could involve Paulina getting a special power that links her to the ghost world somehow. Danny Phantom discovers this and has to help her control it. During their time together, they grow closer. Paulina begins to question her feelings for Danny, both as a human and as Danny Phantom. And there could be a sub - plot where another ghost tries to use Paulina's new power for its own evil purposes.
Love and friendship are common themes. Their relationship, whether it's a budding romance or a deep platonic bond, is often explored.
One common theme is the struggle between good and evil within Danny. It often shows how his normal self battles his evil side. Another theme is the impact on his relationships. His friends and family have to deal with this new, dangerous Danny.
One common theme is family. Since they are siblings, a lot of fanfics explore their family bond, like how they rely on each other and protect one another. Another theme is secrecy. Danny has to keep his ghost identity a secret, and Jazz often gets involved in that secrecy, either by helping him keep it or by accidentally finding out. Growth is also a theme. As the story progresses, both Danny and Jazz grow as characters, both in their personal lives and in dealing with the supernatural elements around them.