In a 'Wonder Woman kidnapped by Joker' fanfiction, the story could start with the Joker devising an elaborate plan. He could use his henchmen to distract Wonder Woman while he sets up a device to incapacitate her. Once kidnapped, Wonder Woman would be in a tough situation. The Joker might keep her in a strange and dangerous location. She would have to use her strength, both physical and mental, to break free. There could be moments where the Joker thinks he has the upper hand, but Wonder Woman's determination and heroism would shine through as she tries to outwit him and get back to saving the world.
Batman could be a likely candidate to save Wonder Woman. He has a long history of dealing with the Joker and his antics. His detective skills would help him track down where the Joker is keeping Wonder Woman.
One possibility is that Robin, being kidnapped, will have to rely on his own wits and skills he has learned from Batman. He might try to outsmart the Joker by finding weak points in the place where he is held captive. For example, if it's an old warehouse, he could look for ways to escape through the ventilation system or by using some tools he might find around. And the Joker, being the unpredictable villain, could be constantly taunting Robin, trying to break his spirit before Batman arrives.
In the fanfiction, Nightwing could be used by the Joker as bait to lure Batman into a trap. The Joker might have some elaborate and sadistic plan in store for both of them. Nightwing, being the strong - willed character he is, will likely try to resist the Joker's psychological games and attempts to break him while waiting for rescue.
Well, it could be that some villain, envious of Wonder Woman's powers, kidnaps her to use her as a bargaining chip. The 'lemon' part might be a code name for a powerful object or a person she was protecting that has some sort of lemony - perhaps yellowish or sour - related significance. Maybe it's a lemon - shaped energy source that the villain wants to control.
It could be Lex Luthor. He's always been after powerful beings and artifacts. He might see Wonder Woman as a threat and kidnap her to get to this 'lemon' thing, whatever it is. Maybe he thinks the 'lemon' has some sort of power that can help him in his never - ending quest for power and domination over Superman and the world.
A powerful and vengeful warlord from a forgotten realm could be a kidnapper. He might see Wonder Woman as a threat to his plans of conquest and decides to take her out of the picture by kidnapping her.
In a 'Wonder Woman meets Avengers' fanfiction, there could be an epic battle against a common enemy. Maybe Thanos is trying to get his hands on some Amazonian artifact, and Wonder Woman teams up with the Avengers to stop him. They'd combine their powers in amazing ways. Iron Man could provide tech support while Wonder Woman uses her lasso of truth to expose any hidden plans of the villains. Hulk and Wonder Woman could have an interesting dynamic, with Hulk being all brute strength and Wonder Woman having her grace and combat skills.
She might bring her unique fighting style. Wonder Woman's combat skills, like her use of the lasso and bracelets, would add a new dynamic to the Avengers' battles. Her Amazonian training could also influence how the team approaches strategy.
Well, in this fanfiction, perhaps they team up. Naruto, being from a world full of shinobi and complex politics, could share his knowledge with Wonder Woman. And Wonder Woman, with her experience in fighting for justice in her own world, could teach Naruto about different ways of protecting people. They might end up fighting a common enemy that threatens both their worlds.
Another aspect could be the power dynamics. The Hulk's raw strength against Wonder Woman's strength and combat skills. Hulk might initially see her as a threat and lash out, but she could use her lasso of truth to calm him down. Black Widow could teach Wonder Woman some of her spy and infiltration techniques, which could be useful in a more covert mission against a new villain that emerges from the crossover of their two universes.