In the fanfiction, Lily's family could have a range of reactions. Her father might be very protective and grill James with a lot of questions about his intentions with Lily. Her mother could be more welcoming, but still observing closely. If James is polite and shows that he truly loves Lily, some of the family members may be won over quickly. However, there could be an aunt or uncle who is more difficult to please and holds some reservations about James for a long time.
They might be cautious at first. They would be sizing James up, looking at his appearance, his manners. If he seems respectful, they may start to be friendly.
Lily's family's reaction when James meets them can be quite complex. Some of the younger family members might be excited to meet him, especially if they've heard stories about James from Lily. The older generation, like grandparents, might have different expectations. They could be more traditional and expect James to follow certain courtesies. If James is able to adapt and meet these expectations, like greeting them in a proper way and showing respect for their values, the family may gradually accept him. But if he makes a misstep, it could take a while for them to come around.
In the fanfiction, when James meets Lily's family, there could be a lot of different scenarios. For instance, if Lily has a younger sibling, James might end up playing with them and showing his fun side. Her family could be initially skeptical of him, especially if they know about his past pranks. But as they see how much he cares for Lily, they start to warm up to him. He may also share his future plans with them, which includes Lily of course, to show his seriousness and commitment.
James might impress Lily's parents by showing his intelligence. For example, if they discuss a current event or a historical topic, James could offer well - thought - out opinions and insights. He could also show his caring side towards Lily, like how he always makes sure she's okay when they are out together. This would make her parents think he's a great partner for their daughter.
She might be nervous. Katniss is used to being on her own and not having much family interaction. Meeting Peeta's family could be intimidating for her. She may be quiet at first, observing them carefully.
James might be overjoyed. He could immediately embrace Lily and start talking about their future together, like planning for the baby's room or thinking about names.
James might become very withdrawn. He could stop joking around as much and keep to himself, feeling dejected.
Lance's family might be really welcoming. They could see that Keith is an important part of Lance's life and embrace him right away.
They might be cautious at first. Since Kirito is from the same world of Sword Art Online where Asuna has faced many perils, they could be worried about his influence on her. But if they see his kind heart and his love for Asuna, they may gradually accept him.
He would probably be overjoyed. James Potter was a loving person, and the chance to meet his son would be a wonderful moment for him. He might immediately pull his son into a big hug and start asking all sorts of questions about his life.
In some fanfictions, Snape might see this as an opportunity for his own growth. He might accept the apology gracefully, realizing that holding onto grudges isn't helping him. This could lead to a new relationship between them, where they start to understand and respect each other, or at least tolerate each other's presence.
Some might be excited. They've probably heard a lot about Percy from Annabeth, so they are eager to meet him in person.