The main concern was that Logia-type abilities were inherently volatile and difficult to control. If the two brothers lost control of their emotions and went berserk, the resulting destruction would be no laughing matter.
However, upon further reflection, Caesar realized that his sons were nearly four years old. As long as they were trained under supervision, there shouldn't be an issue in awakening their Devil Fruit abilities.
With that in mind, Caesar made his decision.
Inside his quarters, two Devil Fruits—one golden with swirling patterns resembling light, the other silver-white, crackling faintly with residual energy—floated into his hands. These were the Pika Pika no Mi (Glint-Glint Fruit) and the Goro Goro no Mi (Rumble-Rumble Fruit), treasures he had safeguarded for a long time.
At that moment, his sons noticed the fruits.
"Father! This looks like the fruit our sister ate!"
"It's beautiful! Are you giving it to us?"
The eyes of the young brothers, Carlos and Lucius, lit up with excitement. Though they had long yearned for Devil Fruits, they had obediently refrained from asking, knowing their father had once told them they were too young.
Now, seeing the fruits before them, they instinctively understood what this moment meant.
"Really, Father? We'll have Devil Fruit abilities too?"
Looking into the eager, expectant eyes of his sons, Caesar nodded. He motioned for them to sit beside him, but he remained cautious.
Even though his crew members could withstand the power of these fruits, Caesar's real concern was whether Carlos and Lucius' bodies could handle the immense burden of such potent Logia abilities.
To be safe, he retrieved small amounts of seastone (Kairoseki), embedded them within metal casings, and forged two small bracelets.
"These won't be for everyday wear," he explained. "But when you sleep, you'll wear them—just in case. If you lose control while dreaming, you might unleash destruction without realizing it."
Having made all necessary preparations, Caesar presented the fruits to his sons.
"Father, what powers does this golden fruit have?"
Carlos, full of curiosity, poked at the golden-hued fruit in his father's hand.
Caesar answered carefully, ensuring his son understood its significance.
"This is the Pika Pika no Mi—the Glint-Glint Fruit. Eating it will grant you the power of light itself."
"You'll be able to move at the speed of light, unleash devastating light-based attacks, and with training, even forge weapons of pure light."
Carlos' eyes gleamed, his excitement barely contained.
"What about this one? It's silver-white, and the patterns look like lightning!"
Lucius could hardly wait to learn about his own fruit.
Caesar turned to him with a smile, gently stroking his head.
"This is the Goro Goro no Mi—the Rumble-Rumble Fruit."
"That's right—it's the lightning you're usually afraid of."
"Boom!"
Caesar playfully mimicked the sound of thunder, making both boys flinch before they huddled closer to him.
Chuckling at their reaction, he continued, "Eat this, and you'll gain the power of lightning itself."
"You'll be able to become lightning, generate powerful high-voltage currents, and move at lightning-fast speeds."
"With development, you can unleash massive area-wide thunderstrikes, and even coat your body in lightning to enhance your attacks!"
Hearing this, the brothers were overwhelmed with anticipation.
"Father, can we eat them now?" they asked in unison.
Seeing their excitement, Caesar nodded.
First, he handed the Goro Goro no Mi to Carlos. Then, he gave the Pika Pika no Mi to Lucius.
He had already made this choice beforehand.
Carlos had inherited his mother's intelligence and ability to analyze and learn quickly—an essential trait for mastering the Goro Goro no Mi, which had a multitude of applications and development paths.
Lucius, on the other hand, was naturally energetic and instinctive—a perfect fit for the Pika Pika no Mi, a fruit that emphasized speed and raw power.
As soon as the fruits entered their mouths, the brothers' faces twisted in disgust.
"Ugh—so bitter…!"
They immediately covered their mouths, their eyes watering as they fought the urge to spit it out.
But they knew—to gain power, they had to endure it.
Determined, they forced themselves to swallow the foul-tasting flesh.
Seeing this, Caesar handed them each a glass of water and a small cake to cleanse their palates.
He watched them with quiet pride. Their resolve was strong.
Moments later, a strange sensation washed over them.
Carlos and Lucius could feel it—a newfound energy, unlike anything they had experienced before. It felt innate, as if it had always been part of them.
Carlos, unable to contain himself, decided to test his power.
Without realizing it, he unleashed a massive surge of electricity, sending a bolt of lightning crackling through the air!
Millions of volts arced toward the ceiling—but Caesar reacted instantly.
Activating his electromagnetic field, he neutralized the lightning before it could cause any damage.
Before anyone could react, Lucius followed suit.
A blinding sphere of golden light formed in his palm, illuminating the entire room.
Then, without warning, a beam of concentrated energy shot out—straight toward Caesar!
But Caesar had anticipated this.
With a swift motion, he raised his arm—his Armament Haki (Busoshoku Haki) fully activated—and absorbed the full impact with his palm.
Even though his sons were still children, their attacks were already incredibly potent.
The Goro Goro no Mi and the Pika Pika no Mi weren't called top-tier Logia fruits for nothing.
Caesar could feel it—the immense heat, the cutting power, and the destructive force behind their attacks.
It was clear—his sons would one day grow into powerhouses on par with the strongest of the seas.
Perhaps… even comparable to Douglas Bullet.
As the initial rush of excitement faded, Caesar exhaled and gave his sons a knowing look.
With a smirk, he ruffled their hair.
"Alright, that's enough destruction for now."
Carlos and Lucius, realizing what they had just done, glanced at each other with sheepish grins.
Then, they carefully observed their father's face.
Noticing that he wasn't angry, they sighed in relief.
That night, the family talked for a while before preparing to sleep.
But Caesar could tell—his sons were far too excited to rest.
So, with a glance at his wife, Lily, and their daughters, he made a decision.
"If you're too restless to sleep," he said, "then let's train instead."
Taking his family high into the night sky, away from their ship, he had Lily create a floating island cloud using her Devil Fruit powers.
Now, in a safe space with no restrictions, he turned to his sons.
"Alright, Carlos, Lucius," he said, his voice calm yet firm.
"Tonight, we train. Learn your powers. Control them. Master them."
The two young brothers, wide-eyed and brimming with excitement, nodded eagerly.
And so, under their father's guidance, two future legends began their journey.
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