The reactions of their friends would vary. Levy would probably start gathering all kinds of books about pregnancy and parenting for them. Elfman might be all about being manly and say things like Gray has to be the strongest father ever. Mirajane would be the sweetest, offering to cook special meals for Juvia to ensure she has all the nutrition she needs. Loke might offer to babysit in the future, with his charm and all. Their friends' reactions would add a lot of warmth and fun to the fanfiction story.
Their friends in Fairy Tail would likely be very excited. Erza, for example, would probably be super supportive and offer practical advice on things like baby - proofing a home. Natsu might be a bit clueless at first but would be really happy for them. Lucy would be thrilled and might start knitting baby clothes. Happy would be flying around them, chirping happily. Overall, their friends would form a great support system for Gray and Juvia during this time.
Some of their friends could be a bit more cautious in their reactions. Wendy might be worried about Juvia's health during the pregnancy and offer her healing magic if needed. Gajeel might seem gruff on the outside but secretly be happy for them. Cana might joke around a lot, saying things like she can't wait to teach the baby some drinking games when it's old enough (just kidding, of course). And Makarov would be like a proud grandfather, offering his wisdom and guidance to Gray and Juvia as they embark on this new journey.
Gray would be devastated. He might go into a state of deep depression, isolating himself from the rest of the Fairy Tail guild. He would blame himself for not being able to protect her, especially if her death was related to her love for him. Gray would probably be filled with anger as well, and he would vow to take revenge on whoever was responsible for her death.
Juvia might become very sad and withdrawn. She could start to doubt herself and her worthiness of love. In some fanfictions, she might cry a lot and isolate herself from others in the guild, thinking that she has done something wrong to make Gray reject her.
In many fanfictions where Gray confesses to Juvia, it's often a very emotional moment. It might happen after a big battle where they realize how much they mean to each other. Gray could finally admit his feelings that he has been suppressing for a long time. Maybe he sees Juvia in danger and that makes him realize he can't hide his love anymore.
Their friends would likely be very excited. Lucy would probably be overjoyed and offer to help with things like baby clothes shopping. Gray might act a bit gruff on the outside but secretly be happy for them. Erza would be very protective, making sure that Lisanna has everything she needs and that the guild is a safe environment for the baby. Happy, Natsu's Exceed friend, would be constantly around, making cute comments about the baby and offering his own unique brand of support.
Well, it could make Gray feel an extreme sense of guilt. He might blame himself for not being able to protect her. And this could lead to him becoming more withdrawn and brooding, perhaps even pushing away his friends as he grapples with the loss.
The other members of Fairy Tail would likely be very excited. Natsu might be a bit clueless at first but would soon be happy for them. Lucy would probably be super excited and offer to help Levy with anything she needs. Erza would be more reserved in her excitement but would offer her protection. Gray would probably make some teasing remarks to Gajeel about becoming a father.
Another reason could be related to his loyalty to the guild. Gray might think that his focus should be solely on protecting Fairy Tail and its members. He could believe that a romantic relationship with Juvia would distract him from his duties. Also, there could be some unspoken guild rules or a sense of propriety that he feels would be violated by getting involved with her.
A really popular 'Fairy Tail Gray and Juvia fanfiction' is the one that focuses on their post - guild life. After leaving Fairy Tail, they start a new life together. It delves into the small, everyday moments of their relationship, like how they decorate their new home and deal with the neighbors. It gives a really sweet and domestic view of their relationship.
One interesting story could be about Juvia and Gray going on a secret mission together. They face many challenges that test their relationship and their individual powers. Along the way, Juvia's love for Gray becomes even more apparent, and Gray starts to see Juvia in a new light.
The main characters are clearly Juvia and Gray. Juvia, with her obsessive love for Gray, is the one dishing out the punishment. Gray, on the other hand, is the recipient of Juvia's punishments, being the object of her affection and also her frustration.