There might be a fanfiction where Usagi discovers she is part of a long - lost line of supernatural guardians. This could involve her training to master her new - found powers and facing off against dark forces.
First, think about the supernatural elements you want to include. For example, magic, otherworldly creatures, or special powers. Then, consider how Usagi would interact with these elements. You can start with a simple plot idea like Usagi finding a magical item.
Usagi's friends would be extremely worried. They would immediately start looking for her. They might split up to cover more ground and search different areas where Demando could be hiding her. They would also use their powers to try to sense Usagi's location. For example, if one of them has a power related to sensing emotions, they could try to detect Usagi's fear or distress.
The fanfiction might also play with the themes of forbidden love. Since they may not be a typical pairing in the original source material, the story could focus on the challenges they face in society or within their own social circles. It could be about how they overcome these obstacles to be together, perhaps by showing their determination and the strength of their feelings for each other.
Lemon fanfiction often involves romantic and sometimes spicy elements. In the case of misaki and usagi, it might explore their relationship in more depth, perhaps with added scenarios of intimacy and passion that deviate from the more innocent portrayals in the original work.
Love and sacrifice is a common theme. Mamoru would sacrifice his time and energy to take care of Usagi. Another theme could be the power of friendship. Their friends would likely come to their aid during this difficult time. Also, the theme of hope. Despite Usagi being sick, there is always hope for her to recover and have a healthy baby.
The plot could involve Usagi's sickness being related to some sort of magic or enemy plot. Since she's pregnant, her powers might be affected. Mamoru, being the loving partner, searches for a cure while also protecting Usagi. There could be a lot of emotional turmoil as Usagi is worried about the baby and Mamoru is torn between finding a solution and being by her side all the time. Eventually, with the help of their friends, they figure out what's wrong and Usagi recovers, ready to give birth to a healthy baby.
Tuxedo Mask could also be in the harem. He has a long - standing relationship with Usagi, and in a harem scenario, his feelings for her could be even more intense, competing with others for her love.
Some fanfiction communities might have threads dedicated to this pairing and lemon fanfics. You could join those communities and ask for recommendations. People there are often very helpful and can point you to some great misaki x usagi lemon fanfictions.
Lemon fanfiction often involves a certain level of romantic or spicy elements. In misaki x usagi lemon fanfiction, it might explore their relationship in a more intense and passionate way. Maybe it shows their deep emotional connection and physical attraction, with detailed descriptions of their interactions.