It could also be about power. Percy might realize that with Zeus out of the way, he can reshape the world of the gods in a more just and fair way. He could believe that Zeus's rule is corrupt and that killing him is the only way to bring about real change.
Yes, there might be. Fanfiction is a vast world, and with the popularity of Percy and the Greek mythology concept, it's quite possible that someone has written a story where Percy is Zeus' mate. You can check popular fanfiction websites like Archive of Our Own or FanFiction.net.
In this kind of fanfiction, Percy might challenge Zeus over issues like the unfair treatment of demigods. For example, Zeus could be overly harsh on demigods who make minor mistakes while the gods themselves get away with much worse. Percy, being a hero, would stand up for his fellow demigods.
Another possibility is that Percy discovers some long - forgotten weakness of Zeus. In the world of fanfiction, the author could create a scenario where Percy stumbles upon an ancient prophecy or a hidden secret about Zeus. This knowledge could give Percy the upper hand. He could then use his wits and his powers to exploit this weakness and defeat Zeus.
One interesting fanfiction could be about Percy Jackson's adventures that are more closely tied to his relation as Zeus's grandson. Maybe he discovers some hidden powers that are passed down only through the Zeus lineage. He could face challenges where his Zeus - related powers are both a blessing and a curse, like when he has to control excessive lightning powers during a battle with a powerful monster.
Well, the idea of 'Percy Gets Zeus Pregnant' is quite outlandish for a fanfiction. While fanfiction allows for a great deal of creative liberty, this concept might be so unique that it may or may not have been written. Some fanfiction communities are more open to such extreme and unorthodox ideas than others. So, your best bet is to do a thorough search on popular fanfiction platforms.
The theme of unlikely friendship also pops up often. Since Zeus and Percy seem like such an odd pair, fanfiction writers like to explore how they could form a bond that goes against the norms of their world. It's interesting to see how they overcome their initial differences and prejudices to become friends or at least allies in the stories.
The character of Percy's younger brother in Zeus fanfiction could bring new dynamics. He could be a source of conflict, perhaps being jealous of Percy's achievements and trying to outdo him in the world of the fanfiction. Or he could be a support, working alongside Percy against common enemies. It all depends on how the author wants to develop the character.
I'm not sure if there is a specific 'Percy Gets Fem Zeus Pregnant' fanfiction available. Fanfiction is a vast world and it can be difficult to know about every single story. You could try searching on major fanfiction platforms like Archive of Our Own or FanFiction.net.
For the demigods, things could change a lot too. Percy is a champion of the demigods, and his victory over Zeus might mean better treatment for demigods. They could be more respected and have more rights in the world of gods and mortals. However, it could also make them targets of those who are against Percy's actions.