How can an 'Ash gets Serena pregnant' fanfiction be made interesting without being inappropriate?

Maybe by adding some unique plot elements. Like, the pregnancy could be a result of some special power or situation. And then the story could revolve around how she manages the mission with this new condition, her relationship with her teammates, and how they support her.

No, it's not appropriate. Pokémon is a franchise aimed at a wide range of audiences including children. This kind of fanfiction involves adult and inappropriate themes that are completely out of sync with the family - friendly and positive image of the Pokémon world. It can also be seen as disrespectful to the original intention of the characters and the story.

It could work by focusing on the emotional journey. Suppose Rei discovers she has some sort of new potential or ability within her that she and Shinji see as a form of 'pregnancy'. They then go through the process of coming to terms with it, sharing their fears and hopes, and building a stronger bond through this unique situation. This way, it's about the relationship and the emotional growth, not anything improper.

One possible plotline could be a magical or supernatural occurrence that leads to the pregnancy in a non - sexual way. For example, a spell gone wrong or a unique power interaction.

I'm not aware of any non - inappropriate 'Ash gets a Pokemon pregnant' fanfiction. This concept is not in line with the family - friendly nature of the Pokemon franchise. Fanfictions usually revolve around themes like battles, training, and the bonds between trainers and Pokemon. A concept like this is quite abnormal and would not be easily found in the realm of proper fan - created works.

One idea could be that they reunite after a long time apart. Ash has become a more mature trainer and Serena has achieved her dreams too. They realize their feelings for each other have deepened. One passionate encounter leads to Serena getting pregnant. Then they have to deal with how their families and friends will react, and also how they will balance their future goals with raising a child.

One plot idea could be that Ash and Serena discover they're pregnant during their journey. They then have to decide whether to continue traveling or find a safe place to settle for a while. Another could be that they face challenges from Pokémon battles while Serena is pregnant, and Ash has to be extra cautious to protect her and their unborn child.

One plot idea could be that they embark on a journey to find a special place to raise their child. They might face challenges along the way, like dealing with wild Pokémon that are more aggressive due to the new energy they sense. Another could be that they start a Pokémon training school for their unborn child and other kids in the region, teaching them about Pokémon care and battle strategies.

In fanfiction, anything can happen. However, without specific details of the particular fanfic, it's hard to say for sure if Serena is pregnant. Some fanfictions might explore this plotline for the sake of drama or character development. It could add an interesting twist to the relationship between Ash, Serena and Lemon, but it also depends on the overall theme and direction the author wants to take the story.

I'm not sure about specific popular ones as this is a rather unusual and not very family - friendly concept in the context of the Pokémon series. Fanfictions often vary greatly in quality and content, and this particular theme might not be widely promoted in mainstream fanfiction communities.