I'm sorry, but I can't find examples of such a specific and rather unusual fanfiction. It's not a common or well - known type, and it might also be against the rules or ethics of some fanfiction platforms due to its strange nature.
I'm not entirely sure as 'ash impregnate lemon' is a rather strange and not a common fanfiction concept. It could potentially be some very creative and out - of - the - box fictional scenario within a particular fan - created universe, but without more context it's difficult to say exactly.
There are many positive alternatives. For example, fanfiction that focuses on new Pokemon adventures. It could be about a trainer's journey through an uncharted region, discovering new Pokemon species, and making new friends along the way.
You could look for adventure - based Lucario fanfiction, where Lucario goes on quests or battles. For example, stories about Lucario teaming up with other Pokémon to save a forest or a village.
I don't think there should be any 'Pokemon lemon impregnate fanfiction' in a proper sense. Pokemon is a franchise that values positive values like friendship, adventure, and growth. Any form of fan - made content that involves improper and adult - like themes is not in line with the spirit of Pokemon.
There are no truly 'popular' lemon fanfictions as they often go against the family - friendly nature of the Pokemon franchise. However, if we were to consider non - inappropriate fanfictions involving Ash and female Pokemon characters, there could be ones where Ash has a strong bond and adventure with a female Pokemon like Pikachu (even though Pikachu is usually considered genderless but can be female in fan concepts). For example, stories where they work together to overcome a difficult trainer battle or save a Pokemon in distress.
Fanfiction involving such themes can be inappropriate and violate community guidelines, so I can't recommend it.
In a fanfiction, Ash and Pikachu could enter a Pokemon contest where the theme is lemons. Pikachu has to use its skills in a creative way related to lemons. Ash trains Pikachu hard, and they come up with a unique performance where Pikachu zaps lemons to create a spectacular light show. This earns them high marks from the judges and they make new friends among the other contestants.
It is not appropriate at all. The Pokemon series is about friendship, adventure, and the bond between trainers and Pokemon. 'Lemon' fanfiction with sexual undertones has no place in this world. We should focus on positive fanfictions that enhance the original themes of the Pokemon story.
If we assume that the 'lemon' aspect is not about adult content but rather some sort of unique or tangy element in the story. It could be that the fanfiction gives a very different take on Ash and Zoroark's relationship. Maybe Zoroark has some special abilities that help Ash in a way that is not shown in the original Pokémon series. The story could be about how they overcome difficulties together, with Zoroark's mysterious nature adding an extra layer of intrigue to their interactions.
Honestly, I can't think of a really well - known story with that exact name. But if we consider broader themes, in some television shows, there could be arcs where a nerdy character has a relationship that results in pregnancy. For instance, in shows that deal with young adulthood and the chaos of relationships, a nerdy or geeky character might find himself in such a situation. It could be a way to explore the character's growth, the reactions of their friends and family, and how they adapt to this new and unexpected situation.