Disclaimer: I don't own Thunderbirds.

Characters: Kayo, Scott. Rating: T. Warnings: None

Drabble challenge from moonlight-huntress: "What happened to you? What did they say to you?" "Please don't make me tell you." with Kayo and Scott.

She knew she had a temper. It was one of the first things she'd had to accept when she first started learning martial arts. Temper meant rash moves, and rash moves meant the fight was lost. She'd learnt to marshal it, then channel it though other means so it wouldn't flare up at inopportune moments.

The gym on Tracy Island replaced its punching bags frequently.

It was mostly under control now. Flare ups were rare, although shouting matches with a certain overprotective big brother she didn't always see eye-to-eye with were more common.

Right now, she could feel it bubbling up, like magma on the very tip of erupting out of a volcano. The reason, as always, was family.

Specifically, this time was because someone had hurt her family. And she didn't know who.

The GDF had been particularly tight-lipped. Even John hadn't managed to weasel any information out of them, which meant it was all operating on a need-to-know basis that didn't involve anything recorded electronically. Colonel Casey was apologetic but firm. No International Rescue this time.

Kayo was going to be tearing someone apart the moment she knew who, and the person who was going to give her that answer was approaching now, strapped to a hoverchair and looking decidedly the worse for wear.

She would be the first to admit that out of all her brothers, it was Scott that she fought with the most. He smothered too much for her liking, she struck out alone too much for his. Their core principles were the same - protect their family, help the world - but their preferred methods were at times very, very, different and they clashed.

But he was her brother. She was allowed to get scrappy with him. It was, as Gordon would say, a younger sibling's duty to rile the elder ones. Push and pull, all part of the sibling dynamic that kept the Tracy family so tightly knit. Family could fight, could argue, could forgive it all because that was what family did.

Someone who was not family was not afforded the same leeway. No-one else got to pick on Scott - on any of her brothers, but it was Scott approaching looking like he'd lost a fight with a bear or several - and that was a message she intended on making very clear.

"What happened to you?" she demanded, running the last few paces and putting her hands on the arms of the hoverchair. He didn't reply, didn't even look up to meet her eyes where she was leaning over him, and she shot a glower at the GDF flyer behind him. They'd been tight-lipped. "What did they say to you?"

Still no answer, and the first pulse of magma spilled over the rim. "Scott!" Unthinking, she grabbed at his shoulder, only for a shudder of pain to run through him. She pulled her hand back sharply, swallowing around the desire to apologise for her slip. "Scott, tell me. I need to know what the security breach was!"

Partially true. She knew where it was, just not how it had happened. Or who.

"Please don't make me tell you." His voice was small, weak. Nothing like the big brother she regularly got into shouting matches with. The sound of it was enough to freeze the top of the magma, although it didn't stop the rest of it from churning furiously below the surface.

"Scott, I need to know," she pleaded. "What if it happens again? What if it's Virgil next time? Alan?" She had to protect her brothers, and if that meant making sure whoever was behind this couldn't strike again…

His head moved and she found herself looking into his blue eyes. Still powerful, still all-knowing big brother, reading more than she wanted to.

"The GDF know," he told her. "I told Colonel Casey. She has the report."

He'd tell the GDF before her? But no, that wasn't what he was saying, was it? Scott Tracy, ever the overprotective big brother. He told his godmother, the woman he'd grown up with as his Aunt, rather than tell his little sister.

"I'll ask her, then," she snapped. "John and EOS will find the report. You know they will. So why won't you just tell me?"

He just looked at her, and she ground her teeth.

"Scott."

"It doesn't matter," he dismissed. "Let's just go home, Kayo."

The hoverchair continued its advance, nudging her out the way, and she stared at her brother's retreating back in confused frustration.

What did he mean, it didn't matter?

Kayo is a very unusual character for me to write, I have to admit, but she was in the prompt, so I wrote her! I absolutely do not ship Scayo, so this - and any other time I write Kayo with any of the boys - is purely familial.

Thanks for reading!
Tsari