Another fanfiction could be set in an alternate universe where Danny's girlfriend has some sort of superpower too. Maybe she can communicate with spirits in a different way than Danny. They could team up to solve mysteries in the ghost world and their relationship could grow stronger as they face challenges together.
First, know the characters well. Research Danny Phantom and his personality traits, as well as any established characteristics of his potential girlfriends in the show. Then, create a unique plot. It could be something that hasn't been explored much in the original series, like a time - travel adventure involving Danny and his girlfriend.
In fanfiction, the idea of Danny and Ember having a daughter can lead to really interesting storylines. Maybe their daughter could inherit Danny's ghost powers and Ember's musical abilities, creating a unique character. She could struggle with being half - ghost, half - something else due to Ember's unique nature, and have to find her place in both the human and ghost worlds.
It could be one of his enemies. For example, Vlad Masters. He has always been envious of Danny and would love to see him in trouble. Exposing Danny's secret would be a great way for him to get back at Danny and take over Amity Park.
His powers could become more ice - based. Instead of the normal greenish - blue energy, his blasts might turn a frosty white. His ability to fly could also be affected, with a cold trail following him as he moves through the air.
In Danny Phantom, Danny and Carrie's love story is full of charm. They first met in a rather spooky situation. Danny, with his unique ghost - fighting abilities, caught Carrie's attention. Their relationship gradually developed as they faced various challenges together. They supported each other, Danny protecting Carrie from the threats of the ghost world, and Carrie being there for Danny in his normal life. Their love was a blend of the extraordinary and the ordinary, a story that shows how two different individuals can come together in a world filled with mystery and danger.
In this fanfiction, it could be that Danny Phantom meets a Danny Phantom from a parallel fan - made story. At first, they don't trust each other. But as they learn more about each other's worlds, they realize that there are some common elements that are being threatened. It could be that a powerful ghost is trying to rewrite all the fanfic universes related to Danny Phantom. So, they must combine their strengths and knowledge to stop this from happening.
His betrayal would likely be the catalyst for a whole new set of story arcs. Other characters might start to question their own loyalties. And since it's a 'lemon' fanfiction, there could be a sense of bitterness that spreads throughout the story. Maybe the town that Danny protects would also start to turn on him, thinking he can't be trusted anymore. It would be a downward spiral for Danny's character, at least initially, as he has to deal with the consequences of his actions.
Well, in this kind of fanfiction, Danny could be controlled by an ectoplasmic parasite. The parasite latches onto Danny and takes over his actions. His eyes might glow a different color to show he's not in control. His friends would first be confused, then realize something is amiss and start investigating.
There could be a fanfic where Danny and Ember accidentally swap powers. This leads to a series of comical and also dangerous situations. Danny has to figure out how to control Ember's power of influencing people through music while Ember struggles with Danny's more combat - oriented powers. It could be a story full of self - discovery for both of them.