The best friends oath.

The hospital smelled like antiseptic and fresh beginnings. Two exhausted mothers lay in adjacent beds, their newborns swaddled in pastel blankets—one pink, one blue. 

"This is it," one mother said, beaming as she turned to her best friend. "Our families, finally tied together."

The other mother laughed softly, glancing at her baby boy. "Can you imagine? Best friends raising best friends. And maybe, one day, even more?"

The women locked pinkies, the silent oath stronger than words.

From their bassinets, the girl yawned. The boy, as if sensing his lifelong fate, immediately started wailing.

They didn't know it then, but this was the last moment of peace their children would ever share.

This wasn't friendship.

It was war.

Their rivalry wasn't bornit was inevitable.

Age 3 – The Toy War

The first battle happened over a stuffed elephant. She saw it first. He grabbed it anyway. Their mothers, sipping tea in the living room, cooed over how adorable it was that their babies were "so attached" to the same toy. Neither of them corrected the misunderstanding. They were too busy yanking the elephant's ears in opposite directions.

(The ears never survived.)

Age 6 – The Birthday Disaster

His birthday party was dinosaur-themed. Her birthday party was the following weekend. It was going to be princess-themed—until she found out he was having dinosaurs.

So, obviously, she made hers a bigger, better dinosaur party.

"Girls don't even like dinosaurs," he sneered.

"Oh yeah?" She climbed onto the table, snatched his T-Rex cake topper, and bit its head off in front of everyone.

Age 10 – The Great Betrayal

At school, they were placed on the same relay team. Forced to work together. But in the final stretch, instead of passing the baton to him, she threw it at him.

"I tripped," she claimed.

"She aimed," he argued.

Their mothers made them apologize. They did. Through gritted teeth.

Age 13 – The Forbidden Secret

She found out he had a crush on someone. He found out she had a crush on someone else. Neither of them was particularly interested in dating—until they realized how much power blackmail held.

"I tell, you suffer."

"I tell, you die."

A mutually assured destruction pact was formed that day.

Age 15 – The Fireworks Incident

It was technically an accident. She technically didn't know the school science project would explode that much. And he technically shouldn't have dared her to do it.

But still, their parents had to pick them up from school together, and that was probably the worst punishment of all.

Age 17 – Present Day

They weren't kids anymore. But that didn't mean they had grown out of their rivalry.

She rolled her eyes every time he walked into a room. He smirked every time she lost an argument. She swore she hatedhim. He was absolutely sure he hated her more.

But their mothers? Oh, they still believed in the best friends forever fantasy,

Neither of them knew it yet.

But their war was about to take an unexpected turn.