It could work by having the lemon element be a part of a new plot device. For instance, a lemon grove could be a secret location where a powerful artifact is hidden. Cheetah, being the cunning character she is, might be the first to discover this. She then has to fight off other villains or even some members of the Justice League who also want the artifact.
One way it could work is if the lemon represents purity or a new beginning in the context of the fanfiction. Cheetah, who is often seen as a villain, could be on a journey of self - discovery. The lemon element could be a symbol that she encounters along the way. For example, she might meet a character who gives her a lemon - flavored drink that has the power to make her see her past actions more clearly, leading her to question her role in the Justice League universe.
The lemon element could also be incorporated as a form of power - up. Imagine Cheetah finding a lemon - shaped crystal that enhances her speed and agility even more. This would make her an even greater threat to the Justice League. However, the crystal also has a downside. It makes her more vulnerable to certain types of magic that are prevalent in the Justice League world. So she has to balance using this new power while also protecting herself from potential threats.
Well, it could be a story where Cheetah has some sort of unique encounter within the Justice League universe. Maybe she's in a situation where her powers are affected in a strange way due to some lemon - themed element. For example, there could be a magical lemon - like object that gives her new abilities or alters her existing ones in a fun and unexpected way.
If we consider the harem aspect first, perhaps there's a powerful character who has the ability to draw characters from both the Justice League and Harry Potter series into their 'harem'. The 'lemon' could be part of a magical or scientific experiment that links these two disparate universes. For instance, it could be a lemon - shaped device that opens portals between the two worlds. And in this new combined world, the characters have to navigate their relationships and powers while dealing with the challenges that come with this strange new setup.
A 'Naruto Justice League' lemon fanfiction might involve some wild crossovers. Maybe Naruto characters get superpowers similar to the Justice League members and there are some romantic or intense relationships. For example, Naruto could have Superman - like powers and have a complex relationship with a female character from either Naruto or Justice League universe. However, this kind of fanfiction often goes against the original canons of both series and is mainly for the fun of exploring new and different scenarios.
It could work if there was a common enemy that forced them together. In the fanfiction, this enemy might be so powerful that they need to combine forces. And as for the harem aspect, it could be that Spider - Man's charm and his outsider - status make him appealing to some of the Justice League members. They might see him as something new and exciting, different from their usual comrades. So, they gradually develop feelings for him.
One way it could work is by having the magical elements of Harry Potter in the Justice League universe. For example, the wizards could help the Justice League with their spells in battles against powerful foes. Maybe Harry Potter himself could use his Patronus charm to fend off some of the League's enemies like Darkseid's minions.
A possible plot could be that a villain from an unknown dimension is using the power of a lemon - like object to create chaos in both the Justice League's universe and the Harry Potter world. The Justice League and the main characters from Harry Potter have to team up to stop this villain. During their journey, they find that the lemon has some unique properties that bind them together in a way that creates a harem - like situation. For example, it could be that the lemon gives off a scent that makes characters more attracted to each other, leading to unexpected romances between characters from different universes.
I'm not sure if there are truly 'popular' 'Naruto Justice League' lemon fanfictions. Since lemon fanfictions often contain adult - like content, they may not be widely promoted or recognized in mainstream fanfiction communities. Also, crossovers between Naruto and Justice League are quite niche in themselves, and adding the 'lemon' aspect makes it even more of a specific and perhaps less - publicized type of fanfiction.
The power dynamics would be very interesting. The devils in Highschool DxD have their own unique abilities such as magic and demonic powers. However, the Justice League has members with superhuman strength, speed, and advanced technology. In a fanfiction, they could either clash due to differences in power usage or find ways to combine their powers. For instance, Batman's strategic mind could be used to plan against powerful Highschool DxD villains, while the magical abilities of the Highschool DxD characters could help the Justice League in battles against magical threats that their technology can't handle.
The crossover could work if there was a common goal. For instance, a powerful and ancient evil that threatens both universes. The Shinju could be the key to stopping this evil. The Justice League, with their different powers like Wonder Woman's combat skills and Aquaman's control over the sea, could bring a different perspective and set of abilities. Naruto and his friends, with their ninja training and knowledge of chakra, could also contribute. They could learn from each other. For example, Naruto might be amazed by the Justice League's technology and the League could be intrigued by the concept of chakra.
One great 'Young Justice Dimension: Justice League' fanfiction is 'The New Recruits'. It focuses on how new members are integrated into the team. The story has great character development and exciting action scenes.