It could be some of the old enemies from the Sailor Moon series who see the baby as a threat. Maybe the Death Busters, if they were still around, would want to use the baby's power for their own dark purposes.
These two could be from a specific fandom. They are characters that the fanfiction author has chosen to focus on. Michiru's love for Haruka in a tux could be a unique take on their relationship. Maybe they are part of a group of characters in their original story, but here, the fanfiction delves into their individual relationship, with the tuxedo being a significant symbol of attraction for Michiru towards Haruka.
Well, perhaps the fanfiction could focus on how Haruka and Michiru's relationship changes with the addition of a baby. They might face challenges like balancing their duties as Sailor Uranus and Sailor Neptune with being new parents. For example, they could struggle to find babysitters when they need to go on a mission. Or it could be about how they teach their baby about their heritage and powers as it grows up.
There's 'A Glimpse of Eternity' which is also quite good. It focuses on the more tender and private aspects of their relationship. The author does a great job of painting a vivid picture of their love and the small, everyday moments that make their bond so special.
Their relationship could become even more intimate. With the new life coming, they would rely on each other more. They might have more tender moments, like Haruka gently rubbing Michiru's feet when she's tired from the pregnancy.
Well, perhaps it could be about Michiru being smitten with Haruka when she sees her in a tuxedo for the first time. Maybe Haruka is attending a formal event in the tux and Michiru is taken aback by her elegance and confidence.
In fanfiction, Michiru loving Haruka in a suit often plays into the themes of power dynamics and aesthetic attraction. A suit can represent power, and Haruka wearing one might make her seem more in control. Michiru, being drawn to this, could imply that she is attracted to Haruka's strength and the air of mystery that the suit adds. It also adds a layer of visual appeal, as the contrast between Michiru's more graceful style and Haruka in a suit can create a captivating dynamic.
You can start by looking on Archive of Our Own (AO3). It has a large collection of fanfictions, and you're likely to find many great 'haruka and michiru' ones there. Just use the search function and type in their names.
One common theme is the exploration of their love. Since their relationship is a central aspect, the kiss often symbolizes the deepening of their bond. Another theme could be the secrecy or the acceptance of their relationship, as in some versions, their relationship might face challenges in terms of public perception or social norms.
Well, it depends on where you look. Some fan communities dedicated to the characters might have their own collections of fanfiction that include such scenarios. For example, on Tumblr, there are often fans who share or recommend 'haruka and michiru kiss fanfiction'. You could also try joining relevant forums and asking the members there if they know of any good ones.
One possible plot idea could be focusing on how they prepare for the baby. They might start by decorating the nursery, choosing soft colors and cute furniture. Another idea could be about their friends' reactions. Their friends could be super excited and throw them a baby shower. They could also face some challenges like deciding on baby names that are meaningful to both of them.