What kind of powers could Natsu and Lucy's baby have in Fairy Tail fanfiction?

She might also have the ability to summon celestial spirits like Lucy. But instead of just summoning them in the normal way, she could use her fire magic to enhance their powers. For example, if she summons a spirit of a warrior, she could make the warrior's weapon engulfed in flames. She could also have a unique bond with a particular spirit that was passed down from Lucy, and this spirit could teach her special magic or give her advice on how to handle difficult situations.

One possibility could be that they discover they're having a baby unexpectedly. Natsu might be initially confused but then super excited. Lucy would probably be a bit more practical, thinking about how to raise the baby in the Fairy Tail guild environment. The guild members would be overjoyed and offer all kinds of help, like Happy bringing little gifts for the baby to be.

She might have the power of celestial manipulation on a grander scale. Maybe she could create new constellations or even entire galaxies of celestial spirits.

He could have the power to control different types of fire, not just the regular one. For example, blue - flame fire that is much hotter and more destructive.

One possibility is that their child inherits Natsu's dragon - slayer magic and Lucy's celestial spirit magic. Maybe the child uses this unique combination to protect Fairy Tail from a new, powerful enemy.

One possibility is that their daughter has a special ability to combine Natsu's fire magic and Lucy's summoning magic in unexpected ways. For example, she could summon a fire - based celestial spirit. She might grow up in a Fairy Tail that has changed a bit since her parents' time, with new members and new challenges. She could be mentored by some of the older guild members like Erza or Gray. And as she comes of age, she might discover secrets about her family's past that put her in a position to make important decisions for the future of the guild and the magical world at large.

One interesting scenario could be when the baby's first magic manifestation occurs. It might happen during a guild party and startle everyone. Another scenario is that the baby gets lost in the guild's large building, and all the members, including Natsu and Lucy, go on a frantic search. A third scenario could be the baby developing a strange bond with an unexpected celestial spirit.

In a fanfiction, there could be a situation where Lucy is forced to side with a group that Natsu is against. This would make Natsu see her as an enemy. Or perhaps there is a prophecy that Lucy is involved in that Natsu misinterprets as something bad. He might think she is a threat to the guild or his friends. Also, if there is a love triangle situation where Lucy chooses someone else over Natsu in a way that really hurts his feelings, that could be a reason for him to start hating her.

One idea could be that Natsu and Lucy accidentally end up taking care of a baby dragon. Natsu would be excited to teach it fire - breathing tricks while Lucy would be more focused on keeping it safe and fed. Another plot could involve a magic spell gone wrong that turns them into babies themselves, and they have to figure out how to reverse it while in this state. It could also be a story where they find a lost baby in the forest during one of their quests, and they decide to raise it together, which would show their growth as characters in terms of responsibility.

Well, perhaps the story could start with Lucy finding out she's pregnant. Natsu is initially shocked but then becomes super excited. The pregnancy is filled with little adventures, like Natsu trying to build a perfect nursery using his magic in a rather clumsy way. And when the baby is born, it brings a new sense of hope and family to the whole guild. Everyone pitches in to take care of the baby, and it grows up surrounded by love and magic.