Renesmee's human relatives, if there are any still in the picture, would likely be very shocked. They would have to come to terms with the fact that Renesmee is not entirely human and is marrying a werewolf. It would be a huge adjustment for them, and they might struggle to understand and accept the situation at first.
Jacob's wolf pack would also have a range of responses. Some of the younger wolves might be excited for Jacob, seeing it as a new chapter for their pack. But the older, more traditional wolves might be worried about the implications of this union for the pack's future and their relationship with the vampires. Jacob would have to work hard to convince them that this is a positive step.
Naruto's friends would be very happy for him. They know how much Naruto has longed for a family. His sensei, like Kakashi, would probably give his blessings. Ayame's family would be glad to have Naruto as part of the family. Since Naruto is a hero in Konoha, it would be an honor for them. And the villagers, who have watched Naruto grow up, would also celebrate this union.
Ash's father, if he is introduced in the fanfiction, could be very supportive. He might give Ash some advice on being a good husband. Dawn's family could also be very involved in the wedding preparations. Her grandmother might pass down a family heirloom for Dawn to wear on her wedding day, symbolizing the family's acceptance and celebration of the union with Ash.
On Ash's side, his mom would be extremely happy and would start planning the wedding immediately. She would love Dawn like her own daughter. Ash's other friends like Tracey would send their best wishes. For Dawn's family, they would see Ash as a great match for Dawn. Her mother would be glad that Dawn has found someone who shares her love for Pokemon. Her father would be impressed with Ash's achievements in the Pokemon world and would wholeheartedly approve of the marriage.
Inuyasha's demon friends and family might be a bit skeptical at first. Some of the more traditional demons might think that a human like Kagome is not a suitable match for Inuyasha. However, over time, they would see how much they love each other and come to accept her. Kagome's family from the future would be worried about her staying in the past but also happy that she has found love. Her mother especially might be sad to see her go but also supportive knowing that Kagome has made her choice.
Sabrina's aunts would probably be overjoyed. They might throw a big celebration in their magical home, inviting all their magical friends. They would see Harvey as a great addition to the family and be happy that Sabrina has found love.
Jacob's family might be initially shocked, especially if it was unexpected. But they would likely come around and be supportive. His parents might offer their wisdom on raising a child. Rosalie's family, depending on their nature in the fanfiction, could be either overjoyed or a bit more reserved. If they are more traditional, they might have concerns about the relationship between Jacob and Rosalie.
For Jacob's werewolf family, their reaction would be a mix of shock and disapproval initially. They have been taught to view vampires as enemies, and Nessie is part - vampire. But Jacob's determination could slowly change some minds. In Nessie's family, the Cullens would be concerned about Nessie's safety and well - being. They know Jacob's temperamental werewolf nature. However, as they witness Jacob's genuine love for Nessie and how he treats her with respect and care, some of the family members might start to warm up to the idea of their relationship, though it would be a long and bumpy road to full acceptance.
In fanfiction, if they're caught, it could be the start of a whole new adventure. Their relationship has always been a bit of a taboo in the Twilight universe. So being caught might force them to re - evaluate their relationship. They might have to find a way to convince others that their love is real and worth fighting for. This could involve them going on a journey to prove themselves, facing various challenges along the way, and ultimately changing the way the vampire and werewolf communities view their relationship.
After marriage, their relationship could grow stronger as they face new challenges together. They might start a family of their own, which would be a unique blend of werewolf and half - vampire traits. This would bring them closer as they navigate the joys and difficulties of raising children in a world that is not always accepting of their union.
Tsukune's human family might be initially shocked. But if they see how much he loves Mizore, they could gradually come to accept her. They would have to get used to the idea of having a youkai in the family. As for Mizore's youkai family, they might be more accepting since they understand the youkai world better. However, they could also be protective of Mizore and want to make sure Tsukune is worthy of her.