A/N: Not one of my better ones and I'll admit it. Rather uninspired, but hopefully insightful.

Title: Yin and Yang
Challenge Set: #2
Challenge: Opposite (#10)
Rating: T
Word Count: 565
Pairings: very mild hint at Triage/Acer
Summary: Two siblings. Two very different people.
Other Notes: Top's a student… probably in the middle of his training.

A more opposite pair he'd never seen.

"No no no." Flattop readjusted his sister's grip on the pole. "Like this."

Acer hopped onto a nearby bleacher and sat back to watch for a while. They still had plenty of time before he and Flattop had to fly out and meet Joyride for the holo-vid, so he wouldn't disturb the practice.

Triage swung again at her brother who took a simple step to the side, batting her pole away.

Rather than rail at her for making the same mistake twice, Flattop simply retrieved the pole and returned it to her. "You see? You gotta hold it the right way. Get it?"

Triage nodded, blushing in embarrassment. "Yes, I get it. Sorry."

She was always like that from what Acer saw of her. Quiet. Apologetic. Submissive. Nothing like her brash elder brother. Yet when together, the siblings made a good team. They complimented each other's strengths and weaknesses.

The femme started moving again, more confident than before. Just a first year medical student and Flattop insisted on her learning to fight. Acer didn't see the point, really. He doubted there would be any war once it was their turn to leave the Academy. It was just a little skirmish among the elders. Nothing to freak out about. Besides, it wasn't like any medics were being targeted. Triage went to school with Autobots, Decepticons, and Neutrals alike. She was safe, yet her over-protective brother insisted on her learning how to fight.

Ah well, it wasn't like Acer could really blame him. If nothing else it would be good for her to learn self-defense. The gold and ivory was a pretty one, pretty enough to earn her a share of suitors. With her personality, she was practically begging for trouble one of these days. If it weren't for Flattop and Triggerpinch, Acer might have made a move himself. However, he enjoyed his internal systems right where they were and so let her be.

Triage sparred with her brother, movements smooth and swift. She relied on her petite frame to move quick enough to avoid her brother's blows. He was fast as well, but too big to out-maneuver her. His gift was the power behind his blows, and hers was the speed and precision.

Eventually though, skill and experience won the battle, and she was forced to admit defeat. "You did well," the blue and red said, a proud grin on his face. She smiled back at him, a more subdued version of his. He basked in praise, she quietly accepted it.

"If you two are done, can we get going, Top?" Acer asked, hopping down from his seat. He gave a nod of greeting to the young femme, but not so friendly as to accidentally set off Flattop's alarm bells. Primus, the mech was too overprotective for his own good sometimes.

"Yeah, I'm coming. You need a lift back?" Flattop asked his sister.

She just waved him off with a small smile. "I'll be fine. You go on and fly."

Flattop looked unconvinced, but did not press the issue. "Alright, let's fly Ace!"

Realizing he'd been staring at Triage for too long, the red and white flier wished her a good night and prepared to take off. He could hear her quiet reply just over the loud roar of his friend's engines. What a strange pair of siblings indeed.