There could be many scenarios in such a fanfiction. Maybe it happens during a high - stress case when they finally realize their feelings for each other. For example, after they solve a really tough mystery together and the relief and joy make them share a spontaneous kiss.
Their relationship would likely become more intimate and protective. If Abby is pregnant, McGee would be constantly looking out for her, making sure she's not overworking or getting into dangerous situations at work.
A really interesting 'ncis baby mcgee fanfiction' might be the one where Baby McGee discovers a hidden talent that helps the NCIS team in a big way. This kind of story adds a new dimension to his character and makes for an exciting read.
It could also lead to some complications. For instance, if there are any rules in the NCIS about relationships between colleagues. They might have to face some disciplinary actions or at least some serious discussions with their superiors. But in the end, their love could overcome these obstacles as they fight for their relationship together.
Abby's character might become more domesticated. She's always been a bit of a free spirit, but being married could make her more settled. She might start to focus more on building a home and a family life. For McGee, he could become more confident in his personal life. He's often been a bit shy and reserved, but with Abby by his side as his wife, he might find himself being more assertive in social situations. Also, they could both develop more patience with each other as they face the daily challenges of married life.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fan - created works, and there's a good chance you'll find some great 'ncis baby mcgee fanfiction' there.
A plot twist might be that Abby discovers she's pregnant before the wedding, but she's not sure if McGee is ready for fatherhood. This could create a rift between them as they struggle to communicate their feelings. Or, it could turn out that someone has been secretly trying to break them up all along, and at the last minute, they reveal all the lies and misunderstandings they've been spreading. Also, there could be a situation where McGee has an accident and loses his memory, forgetting about the wedding and his relationship with Abby, leading to a heart - wrenching journey of her trying to make him remember.
A fellow scientist named Tom, perhaps. He could be a bit of a joker but also very brilliant. He and Abby might have a friendly rivalry, constantly trying to outdo each other in their experiments, but also respecting each other's skills. And then there could be the lab technician, Lisa. She is the one who keeps all the equipment in working order. Without her, Abby's experiments would be constantly interrupted by faulty machinery. She's a bit quiet but very reliable.
One possible plot could be that Abby discovers she's pregnant. McGee would be over the moon but also a bit nervous. They might face challenges at work as they try to balance their jobs at NCIS with the upcoming new addition to their family. Their colleagues could be supportive, but there might also be some concerns about Abby's safety in the field.
One great NCIS Baby McGee and Kate fanfiction is 'The Unlikely Bond'. It beautifully explores the relationship between them as they face a tough case together. It shows how Baby McGee's innocence and Kate's experience blend in an interesting way.