The friends' reactions would vary greatly. The closest ones might be extremely happy and feel like it's a new beginning for Scorpion and Walter. They would be there every step of the way, from helping with the nursery to babysitting. However, there could be some friends who are a bit envious, secretly wishing they had a similar family setup. But in general, their friends' reactions would play an important role in shaping the story of Scorpion, Walter and their baby in the fanfiction.
In the fanfiction, the baby could be a source of great change for them. Their relationship might become even stronger as they take on the role of parents. They would have to face new challenges like protecting the baby from their enemies. Also, the baby could bring out a softer side of both Scorpion and Walter that no one has seen before.
Paige would probably be very determined to continue contributing to the team as much as she could during the pregnancy. She might modify her work approach, focusing more on the strategic and planning aspects rather than being in the field. Walter, being the logical thinker, would ensure that all the necessary precautions are taken at work to protect Paige and the unborn baby. He could also work on projects that could potentially benefit Paige's pregnancy, like developing a device to monitor the baby's health more accurately.
Writers usually depict Walter as highly intelligent but socially awkward. He's often shown as being focused on his work and his scientific pursuits, but struggling with basic human interactions. However, in fanfiction related to his relationship with Paige, he may start to show more vulnerability and a willingness to learn about emotions.
Their friends would be really excited. Chad would probably be happy and offer to help with any heavy lifting or physical tasks around the house for when the baby arrives. Uryu might be a bit more reserved but still show his support in his own way, like making some special baby clothes. Rukia would be thrilled and would be constantly visiting, giving Orihime advice on motherhood.
Kim might be shocked at first. She's used to Ron being her sidekick and Shego being an enemy. But she could come around and be a sort of godmother figure, helping out when needed. Rufus would probably be excited. He'd be like a little furry uncle to the baby, always there to play and keep the baby entertained.
The friends would probably be a great support system. May and Max could bring gifts for the baby, like cute Pokémon toys. Dawn might offer to babysit so Ash and Misty could have some time for themselves. All of their friends would be there to celebrate the new addition to the family and would help out in different ways as the baby grows up.
Pikachu would probably be very protective of the baby. Since he's Ash's closest Pokémon partner, he'd be like a little guardian. Brock would likely offer his help and advice on taking care of the baby, as he has some knowledge about it. Misty might be a bit shocked at first but would eventually warm up and be like an aunt to the baby.
Tails would probably be really excited. He'd be the helpful uncle, always ready to use his mechanical skills to make cool toys for the baby. Knuckles might be a bit more gruff at first, but deep down he'd be protective of the little one. Amy would be over the moon and would constantly offer to babysit so she could play with the baby.
Sasuke would probably be initially skeptical but would come around. He might see the baby as a sign of Naruto's growth and stability. Sakura would be overjoyed and would likely offer to be like an aunt, helping with medical care if needed. Kakashi would be his usual laid - back self but would secretly keep an eye out for the baby's safety. The other villagers, especially the ones who have always supported Naruto, would see the baby as a new hope for the village and would celebrate the new addition to the Uzumaki family.
Kagome's friends from her village might be initially shocked. They know Kagome has been involved with the demon world, but having a baby with a wolf demon like Koga is a whole new level. However, some of her closer friends might eventually come around and support her. Inuyasha, on the other hand, would probably be a bit jealous at first but might also see the potential in the baby for good in the fight against evil.