Lucy, on the other hand, might become more independent yet also more vulnerable. She is used to being strong on her own, but now she has to rely on Rogue and others more. This pregnancy could also strengthen her magical powers in some unexpected ways as her body is changing due to the pregnancy.
One idea could be that Rogue discovers Lucy is pregnant and is initially in shock but then becomes extremely protective. He might start learning about how to take care of a pregnant woman and the coming baby. For example, he could read books on pregnancy and baby care in secret.
Maybe the story could focus on Lucy's journey during the pregnancy. She could be dealing with morning sickness and hormonal changes while Gray is away on some important mission. This could lead to some misunderstandings between them, but in the end, they come closer together when Gray realizes how much Lucy needs him.
The rogue could be a disgruntled ex - knight who was wrongfully banished from his order. He sees kidnapping Lucy as a way to get revenge on the kingdom or the people who wronged him.
For Natsu, the pregnancy would likely make him more responsible. He's always been a bit of a hot - headed and impulsive character. But with a baby on the way, he would start to think more about the future and the consequences of his actions. For example, he might be more cautious in battles to ensure he can return to Lucy and their unborn child.
It could be that there are some internal issues within Fairy Tail that make her leave while being pregnant. For example, there might be a prophecy or a curse that she believes could harm her baby if she stays. So, in order to break free from that potential threat, she decides to leave. Also, she may be facing some personal conflicts with other members of Fairy Tail regarding her pregnancy, like some not being supportive or having different views on how she should handle it, which ultimately drives her to leave.
For Frieza, the news of the pregnancy could make him more protective. He might start to see the OC in a new light, not just as a subordinate or a conquest. His character could shift from being purely evil to having some redeeming qualities as he anticipates fatherhood.
During the pregnancy in the fanfiction, Ikki's character could grow in terms of his understanding of family. He may start to value the idea of a stable home more. Stella, on the other hand, could show great strength. She might face difficulties during the pregnancy but still remain positive, which in turn could inspire Ikki. Their relationship would also change as they both grow in different ways because of the pregnancy.
The plot could develop with them preparing for the baby. They might start looking for a bigger place to live. Natsu could go on quests to earn more money for the baby's needs.
Often, in 'Lucy and Rogue kiss fanfiction', there is a theme of overcoming obstacles. This could be things like differences in their personalities or social status within the fictional world. The kiss then becomes a symbol of breaking through those barriers. There may also be a theme of self - discovery, where through their relationship, both Lucy and Rogue learn more about themselves.
For Natsu, start with his brash and energetic high school self. Maybe he's always getting into trouble for his impulsive actions, like setting off small fires in the science lab by accident. As he spends more time with Lucy, he could learn to be more patient and think before he acts. For Lucy, she might start as a bit of a bookworm, shy and reserved. But as she gets closer to Natsu, she becomes more adventurous, willing to try new things like joining the school's adventure club because Natsu is in it. You can show their development through their interactions with each other and how they respond to challenges at school, like exams or dealing with a strict teacher.