It varies. Some fanfictions have them remembering clearly, while others might have them struggle to recall or have a different take on the event altogether.
Sometimes they do. It depends on how the author writes the story.
Love is a very common theme. Since Usagi and Mamoru have a strong romantic connection in the original story, fanfictions often expand on their love, like how they overcome obstacles to be together.
In another scenario, Usagi and Mamoru could be at a ball. They dance gracefully together, lost in each other's eyes. After the ball, they take a stroll along the beach. The sound of the waves crashing against the shore sets a romantic mood. They hold hands tightly and exchange sweet nothings, reaffirming their love for each other.
Well, in this fanfiction scenario, Mamoru meeting Usagi's parents could be a really big deal. He could be dressed in his best clothes, trying to look presentable. Usagi's parents might grill him a bit, asking about his job, his family, and his intentions with their daughter. Mamoru would need to answer truthfully and with confidence. He could also bond with Usagi's father over a shared interest like classic cars or something, and with her mother over a love for cooking or gardening. This meeting could be a turning point in their relationship in the fanfiction world.
Usagi and Mamoru could have a story where they volunteer together at an animal shelter. They bond over their love for the cute animals. One day, a little puppy gets sick and they work together to nurse it back to health. This shared experience makes their relationship stronger, and they realize how well they work as a team, which deepens their love.
Yes, there are likely some family - friendly Usagi Mamoru pregnant fanfictions. Some writers might focus on the more innocent aspects like how they prepare for the baby, the emotional changes in their relationship in a very pure way, without any inappropriate content.
Writers often portray their relationship as even stronger during the pregnancy. Mamoru becomes more protective of Usagi, always making sure she is comfortable and safe. Usagi, in turn, leans on Mamoru more for emotional support. Their love deepens as they anticipate the arrival of their child.
He acts politely. He greets them with a warm smile and a firm handshake.
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.
One great 'usagi x mamoru fanfic' is 'A Starry Encounter'. It beautifully portrays their relationship with vivid descriptions of their interactions. The author does an amazing job of capturing their chemistry.