One idea could be that they kiss during a moment of extreme danger, when they think they might not survive. It adds a sense of urgency and passion to the kiss. For example, they are facing a powerful enemy and right before a final showdown, they share a kiss as a way of expressing their hidden feelings.
One popular theme is the exploration of their relationship's development. It might start from a place of animosity and gradually shift to a romantic connection that leads to the kiss. For example, they could be rivals at first, but as they face common enemies or challenges, they realize their feelings for each other.
A good plot could be set in an alternate universe where Emma and Hook's first kiss has different consequences. For example, instead of it leading to a happy relationship right away, it causes a rift in the fairy - tale world, and they have to work together to fix it while dealing with their growing feelings for each other. This could involve adventures across different realms and facing old enemies. It would be full of action, drama, and of course, romance.
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.
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.
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.
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, a plot could involve time - travel. Henry somehow gets sent back in time to when Regina was first starting to embrace her dark side. He tries to change her path by showing her the future and how she could have a loving relationship with him. Another interesting plot might be that there's a curse on Henry that makes him forget Regina, and Regina has to go through a series of trials to break the curse and make him remember their relationship. Also, they could be on a quest to find a magical artifact that can restore all the good memories of the people in Storybrooke that Regina once took away, and this journey brings them closer together.
One idea could be that Regina, trying to redeem herself, takes Roland under her wing to teach him magic in a secret way. This could lead to a series of adventures as they have to hide their lessons from the rest of the town. Another plot could involve Roland getting lost in a magical realm and Regina being the only one who can sense his presence and rescue him, leading to a journey of self - discovery for both of them. And perhaps they could team up to stop an evil force that is threatening Storybrooke, with Roland's innocence and Regina's power being a perfect combination.
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.
One popular storyline is about Ruby, Regina and Emma teaming up to fight a new, powerful villain in Storybrooke. They combine their different powers and skills to save the town.