There are fanfictions where the kiss between Erza and Jellal occurs during a battle. In this scenario, it's a spur - of - the - moment thing, a declaration of love in the face of danger. For example, Jellal might save Erza from a powerful enemy and then they share a passionate kiss, showing that their love can conquer even the most dangerous situations.
You can start by looking on popular fanfiction websites such as Archive of Our Own (AO3). It has a large collection of fanfictions from various fandoms, and there are likely to be many stories about Erza and Jellal's kiss there. Just use the search function and type in relevant keywords.
A common theme is growth. Both Erza and Jellal grow as characters through their relationship in fanfiction. Erza helps Jellal become a better person, and in turn, Jellal gives Erza someone to care deeply about. Their relationship can also be a theme of hope. In a world full of magic and danger, their love gives hope to other characters. It shows that even with a difficult past, a positive future together is possible. Also, loyalty is often explored. They are loyal to each other, which is tested in various scenarios in the fanfiction world.
In fanfiction, the characters of Erza and Jellal can be developed in ways that deviate from the original series for the sake of exploring new relationship dynamics. For example, Erza could be depicted as more of a risk - taker when it comes to her relationship with Jellal. She might be willing to go against the guild's rules or norms to be with him. Jellal could be developed as having a different set of moral values in relation to Erza. Maybe he is more lenient or strict depending on how the author wants to shape their relationship. This is different from the original where their characters are more firmly set within the framework of the main story's plot and moral compass.
In 1965, Jellal Uri directed a film about a complicated love story. The film was praised as a classic in the history of film because of its outstanding performance in the plot and character creation.
Happy, Natsu's flying cat companion, is a must - include. Happy could be really excited about the new baby and constantly bring little things he thinks the baby would like, like small fish or soft feathers. Wendy would also be a great character to involve. As a healer, she could be checking on Erza and the baby's health regularly, and she might also share her own knowledge of magic that could be related to the pregnancy in some way.