Brat...!!

Damian was sitting quietly in his living room when he heard a knock on the door. When he opened it, he found his little sister Azul's best friend standing there. A boy with big, curious eyes and a determined expression.
"You're the cutest boy I've ever seen," the boy said bluntly.
Damian blinked, between confused and amused
"How old are you? Ten?" he asked with a mocking smile.
"Twelve!" the boy replied, puffing out his chest with pride.
"I'm nineteen. What do you think Azul would say?" Damian said, leaning against the doorframe, amused.
"I'd say that's who I am," the boy replied with a confident smile.
Damian burst out laughing.
—For starters, I'm seven years older than you. I don't like you, and by the way, I have a girlfriend.
The boy was unfazed.
—At least let me buy you dinner.
Damian raised an eyebrow, holding back another laugh.
—Oh really? And you're going to take me on your tricycle? Or are we going to Chucky Cheese?
—I can use Uber —replied the boy, very seriously.
—And they let you use Uber?
Just then, a car pulled up in front of the house. It was the boy's mother.
—Look, your mom is here —said Damian, waving at her.
—Thanks for taking care of him, Damian —said the lady, smiling from the car.
"It was nothing, ma'am," he replied, ruffling the boy's hair.
—Goodbye, dwarf —he said goodbye with a mocking smile.
The boy clenched his fists, turned around and said:
—See you in six years!
He got into the car, leaving Damian laughing as he muttered to himself:
—This brat…
*Six years later, someone knocked on the door again. Damian opened it, never imagining he'd see the same boy... only he wasn't a boy anymore.*In front of him was a tall, handsome, and self-confident young man.
—You know what? I never knew what you had against Chucky Cheese —said the young man with a charming smile.
Damian froze in the doorway, completely stunned.