They might face family disapproval. In their family dynamic, they could have certain roles and a relationship like a brother - sister kiss might be seen as inappropriate by their parents or other siblings. So, they would have to deal with the judgment and possible estrangement from family members.
Internally, they would have to deal with their own confusion. They might not be sure if what they feel is true love or just a momentary attraction. There would be a struggle between their head and heart, and they would need to figure out if they are willing to risk everything for this new - found relationship.
Personal insecurities could pose a challenge. Lincoln might be insecure about his ability to keep Nikki interested, especially considering his sometimes chaotic family life. Nikki might be insecure about fitting into Lincoln's world. These insecurities could cause misunderstandings and arguments between them as they try to figure out their relationship.
Perhaps in a magical - realism fanfiction, a spell goes wrong and causes them to be attracted to each other and kiss. This kiss then sets off a chain of events where they have to break the spell. Along the way, they discover things about themselves and each other that they never knew before. And this journey of breaking the spell also makes them question if the feelings that the spell brought out were real or not.
They might also face challenges in terms of their different powers and abilities. Sesshomaru is a powerful demon, and Kagome has her own spiritual powers. Their combined powers could be a great asset, but they could also cause problems. For example, if they are not careful, their powers could attract unwanted attention from other powerful beings. Or, in a moment of anger or passion, their powers could get out of control and cause harm to themselves or those around them.
One major challenge is safety. There are zombies everywhere, and finding a place that's completely safe for Lori to give birth and raise the baby is really difficult.
One challenge could be balancing their work at Planet Express with their new married life. With all the dangerous delivery missions, they need to make sure they also have time for each other.
Perhaps it shows that they are fans who are deeply engaged with the source material. Fanfiction allows them to expand on the stories they love, so for Lincoln and Lori, it might be a way to further their connection to the fictional worlds. It could also be that they enjoy the community aspect of fanfiction, where they can interact with other fans who share the same love for these stories.
Hermione would also face the challenge of secrecy. If the wrong people found out, it could put her in danger. And she might have to constantly lie to her friends and family, which would be really hard for someone as honest as her. In some fanfictions, this internal struggle is really well - explored.
Societal and family pressures could be another big challenge. Their families might have different expectations about how they should raise the child. And in the public eye, there could be a lot of speculation and judgment, which can be difficult to handle during such a personal and vulnerable time like pregnancy.
One challenge could be adapting to the team's dynamics. Team 8 has its own way of operating, and Naruto is used to his own style with his friends. For instance, they might be more methodical in their planning, while Naruto is more of a 'jump - in - and - figure - it - out' type. So, he'd have to learn to follow their lead sometimes.
In a fanfiction, after their wedding, Sasuke and Female Naruto might face the challenge of balancing their duties. Naruto might want to focus on village improvements while Sasuke may be more interested in security matters. This difference in priorities could lead to arguments. Also, Sasuke has a dark past that still haunts him at times. His nightmares could potentially affect their relationship. Moreover, they will have to deal with the expectations of the village. People will look up to them as a couple, and any mistake they make could be highly scrutinized, adding stress to their married life.