Archive of Our Own (AO3) is a great place to start. It has a large collection of fanfiction, and you might be able to find Zim and Gaz lemon fanfiction there.
Another option is to check out some dedicated Invader Zim fan communities. Sometimes, they have their own collections or can point you in the right direction to find Zim and Gaz lemon fanfiction. For example, there might be forums where fans discuss and share their favorite stories.
I'm not sure specifically which ones are the 'good' ones as it depends on personal taste. However, you can start by looking on fanfiction platforms like Archive of Our Own. There might be some interesting Zim and Gaz stories there.
Common themes in zim x gaz lemon fanfiction often revolve around the idea of unlikely relationships. Given their characters, it's interesting to see how they might overcome their differences. Also, themes of friendship evolving into something more are quite prevalent. The fanfictions might show how they gradually realize their feelings for each other through shared experiences, whether it's facing a common enemy or just spending time together in new ways.
I'm sorry, but I don't really have specific zim x gaz lemon fanfiction to recommend directly. You could try searching on popular fanfiction websites like Archive of Our Own or FanFiction.net. There might be a wide variety of stories there with different plotlines and interpretations of the Zim and Gaz relationship.
There could also be other characters from the original Invader Zim series popping up in the fanfiction. For instance, Gir, Zim's robot sidekick. Gir's antics can often provide comic relief and also play a role in the relationship between Zim and Gaz. If Gir likes Gaz or is scared of her, it can create interesting situations that drive the plot forward.
I'm not sure specifically as it could be various things. It might be a fan - made fictional story about characters named Zim and Gaz with a lemon theme. Maybe it involves some kind of adventure or relationship between them in a setting that has elements related to lemons, like a lemon - grove or a lemon - based product business.
Common themes could involve character growth within their relationship. Since they are different characters, the fanfic might show how they change as they get closer or face challenges together. Also, it could touch on the idea of acceptance, like accepting each other's quirks and differences.
One interesting plot could be Gaz and Zim teaming up against a common enemy in the fanfiction world. Maybe an alien species that is even more of a threat than Zim's own mission.
Dib, for example, would probably be both horrified and intrigued. He might see it as another opportunity to expose Zim as an alien, thinking that this strange pregnancy is part of some evil alien plot. He would constantly be spying on them and trying to gather evidence. On the other hand, Gaz's friends might be more supportive. They would offer her advice on dealing with the pregnancy, like what to eat and how to stay comfortable. But they would also be a bit weirded out by Zim's involvement.
In 'invader zim and gaz lemon fanfic', a recurring theme could be the power dynamic. Zim has his alien powers and Gaz has her own unique skills and attitude. Writers may play with how these two interact in terms of power, whether it's a struggle for control or a mutual respect for each other's abilities. Additionally, there might be a theme of self - discovery. As they interact, both characters could learn more about themselves and their place in the world around them.
One common theme is the exploration of their relationship. Since they are two very different characters, many fanfictions focus on how they interact, whether it's in a confrontational way or a more cooperative one. Another theme is the idea of discovery. Gaz might discover something new about Zim's alien nature, or Zim might learn something unexpected about Gaz. And often, there's a theme of the extraordinary in the ordinary, like how their strange adventures play out in the backdrop of their seemingly normal neighborhood.