Usui would be there for all of Misaki's doctor's appointments. He'd hold her hand during ultrasounds, listen intently to the doctor's advice, and be her rock throughout the pregnancy. He might also read up on pregnancy and parenting to be well - informed and better support Misaki.
He could take on more of the household chores. Since Misaki might be feeling tired or unwell at times, Usui would cook for her, clean the house, and do the laundry to make her life easier.
Perhaps the story could revolve around how they prepare for the new baby. Usui and Misaki could be seen shopping for baby supplies, decorating the nursery, and going to doctor's appointments together. This would show their growing bond as they anticipate the arrival of their child.
Well, a plot might be set in a future time where they are married and dealing with the challenges of married life while also trying to balance their careers. Maybe Usui has a job opportunity overseas and they have to decide whether to take the risk or stay put. Or perhaps a story where Ayuzawa is in trouble at work and Usui has to use his charm and intelligence to get her out of it, strengthening their bond even more.
I think Hinata could be a great addition. He could be the comical sidekick who always gets into funny situations and in the process, either helps or hinders Usui and Ayuzawa's relationship. Another good character could be Ayuzawa's mother. Her presence could add some family drama, like she might not initially approve of Usui for her daughter.
Sesshomaru would first of all, ensure that Rin has a proper place to rest and stay. He would probably use his influence to get the best possible resources for her. He might not be very expressive verbally, but his actions would speak volumes. He would hunt for the finest food for her, and when it comes to any difficulties or fears Rin has, he would be there to listen and offer his unique perspective. He would also be vigilant against any potential harm that could come to her or their unborn child, using his combat skills and strategic mind to keep them protected.
Shirou would likely be very practical in his support. He'd make sure Saber has proper nutrition, cooking her healthy meals. He'd also take on more of the household chores so that Saber can rest. For example, he'd do the cleaning and laundry without hesitation.
Misaki Usui in 'misaki usui lemon fanfiction' typically shows a great deal of loyalty towards the love interest. He might be portrayed as a bit of a rebel in some aspects, but when it comes to matters of the heart, he is deeply committed. His good looks are often described in detail, from his tousled hair to his piercing eyes. And his sense of humor is also a big part of his character, using it to break the ice or ease tense situations in the story.
Percy would be very protective. He would always be by her side, especially when they go out, making sure no monsters attack. He'd probably also do all the heavy lifting around their place, like moving furniture or getting things from high shelves.
Tony would likely use his wealth and technology. He might create a special medical facility in their home to ensure Pepper has the best prenatal care. He could also design a suit for Pepper that provides extra comfort and support during her pregnancy, like having built - in massagers for her backaches.
Their relationship would likely become more intimate and deeper. With the pregnancy, they would have to rely on each other more. Usui would be more protective of Misaki, and Misaki would trust Usui even more with her vulnerable state.
Love and support are common themes. Usui would likely be very supportive of Misaki during the pregnancy, showing his deep love for her. Another theme could be anticipation. They would both be anticipating the arrival of the baby and all the changes it will bring to their lives. Family is also a theme. They may have to deal with their own families' reactions and build their new family unit.