Regina often develops from a more guarded and controlling character to a more nurturing one. As she raises Emma, she starts to let down her walls. For instance, she may begin to show more vulnerability around Emma, sharing her own past traumas.
In some fanfictions, Emma and Regina could develop a romantic relationship. Their complex history would add depth to such a story. They might have moments of jealousy when other characters show interest in one of them, and then have to confront their true feelings for each other.
Maybe Emma is actually from an alternate timeline where Regina was the one who sent her to our world for a greater purpose. As the story unfolds, this revelation makes Regina question her own motives and actions towards Emma throughout their time together.
Power and its use is another theme. Emma's light magic and Regina's dark magic can be a source of conflict or cooperation. Some fanfictions might show them learning to combine their powers in a balanced way to protect their town and the people they care about.
Well, it could start with a business - like relationship. Sydney might be working for Regina in some capacity. As they work together on tasks, they begin to see each other's true natures. Regina might see Sydney's loyalty and intelligence, and Sydney might see Regina's complexity and the reasons behind her actions. This new understanding could lead to a deeper emotional connection. They could start to care about each other's well - being more than just for the sake of their working relationship. For instance, Sydney might stand up for Regina when others in the town are being critical of her, and Regina could use her power to help Sydney achieve some of his personal goals.
Emma would be devastated. She and Regina had come a long way from being enemies to friends. Regina's death could make Emma question her own abilities as a savior. She might become more withdrawn at first, but then use her pain to fuel her determination to protect the town even more fiercely, knowing that Regina would have wanted it that way.
Redemption is a very popular theme. Given Regina's complex character arc in the show, many fanfictions explore her journey towards redemption, how she tries to make up for her past wrongs and find a place in the world where she can be accepted and at peace.
You can try fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms usually have a large collection of fanfictions on various topics, including stories about Emma and Regina from Once Upon a Time that might include a kiss scene.
One popular trope is 'enemies to lovers'. Since Emma and Regina started off as adversaries in the show, this trope is quite common in their fanfictions. Another is 'soulmates'. Fans like to explore the idea that they are meant to be together in a more fated way.
One popular trope is the 'enemies to lovers' scenario. Regina and Emma start off on the wrong foot, with their differences and past conflicts, but gradually fall in love. Another is the 'soulmate' trope, where they are fated to be together in some magical or destined way.
You can try looking on fanfiction websites like Archive of Our Own (AO3). There are a large number of fanfictions there, and you can use the search function to specifically look for stories about Regina and Emma kissing. Another option is Fanfiction.net, although the interface and tagging system might be a bit different.