Of course they want kids.
Everything is over, they're back to normal levels of safety after Zeref. Natsu is still alive.
Children is the obvious outcome, right?
Fairy Tail is synonymous with family. And Lucy and Natsu want to have what they weren't blessed with as children.
So they had set to it.
.
But life had never been truly kind to them.
.
And you don't get happiness just because you deserve it.
.
"I'm so sorry…" Porlyusica tells them, but she's whispering more to herself than to the young couple in front of her. As much as she blusters about humans, she doesn't want to be the ones to break their hearts.
"It's a biological issue. You can't fight natural laws, not even with magic; not these ones."
Their confusion is expected and evident. What biology? Age appropriate schooling hadn't been a part of their raising.
.
She tells them.
Explains to them in as simple terms as she can.
"It's because Natsu's not human."
.
This statement, of course, reminds them of pain, of guilt, of fear and anger.
The reaction is explosive. Natsu rages. Lucy defends him.
But neither of them can make the fact not true.
So Porly waits until they've calmed.
The crying doesn't start yet; it's yet to sink in.
.
"I'm not accusing Natsu of not having his humanity, stupid children. Natsu was human, then died and was brought back as a demon. His body also went through changes due to Dragon Slayer magic. Lastly, he's from a completely different timeline."
She tries to be gentle but these are things none of them can deny. But she hasn't yet gotten to what this means. She tries to tread carefully. But eventually she has to break the news to them in no uncertain terms.
"His anatomy has gone through too many changes to be compatible for breeding with a human. You cannot have children together. I'm sorry."
.
Hearts shatter.
Tears fall.
A pink-haired Dragon Slayer, normally so strong, falls to his knees, broken by the realisation that even this is his fault.
He is the one causing Lucy to cry again.
.
The horror of infertility to those that want nothing more than their own children.
.
Happiness does not come to those who deserve it.
Not usually.
Because life is harsh and realities outweigh dreams.
.
But all is not lost. And Fairy Tail mages have never been ones to give in to despair.
Maybe they'll adopt, maybe they'll use a sperm donor.
.
They will carve out their own happiness.
.
Because happiness is what you make, even when fate tries to tear you down.
