Company and a different colour

Yaz did her best to focus on walking. Occasionally she tugged at her skirt, glad to find it still at a reasonable length. They'd just walk around, get a feel for the place, then the Doctor would get bored and they'd leave. This place didn't look particularly interesting.

They neared the distant spire, slowing as they reached a gap in the uneven, rocky ground. Too big to cross, the Doctor led the way to what looked like an artificial slope leading down.

"Hopefully it'll lead up the other side," the Doctor said. "Or there'll be something down here."

"Are there normally nice things lurking at the bottoms of pits?" Graham said.

"This isn't a pit," the Doctor said. "More a valley. Trust me, I've seen my share of pits."

She slowed once she'd gotten further down. Suddenly they had a clearer view of what was at the bottom of the valley, light shining down from the multiple suns to illuminate the stony plain; there were small ridges, what looked like huts set into the rock.

The Doctor grinned, and suddenly she was running. Yaz, Ryan and Graham ran after her; paranoid, Yaz kept her hands on her dress to stop the speed of their descent making the skirt flare up.

No, don't think about it. Yasmin bit her lip; why was it trying not to think about something always brought it to the forefront of her mind? No, she was not going to end up with that absurd amount of cleavage, she was not going to have the skirt shrink again. Nuh-uh. No way.

Especially not now they were approaching what looked like a settlement.

They reached the valley floor and the Doctor was still running up to them, excited at the prospect of meeting new people. Yaz followed; normally she'd be much more intrigued by the new world, but then normally she didn't have such uncontrollable clothing on.

"Hey!" the Doctor said. "I'm the Doctor. We're new. Just passing through, saying hi..."

The natives looked... actually remarkably human. There might have been a few odd features if Yaz peered close, slightly off proportions or slightly different textures, but for all intents and purposes she was looking at another human.

Great. She wasn't sure if that made her potential exposure better or worse; she might've preferred a bug-eyed monster.

Instead she had a weary-looking woman, dressed in what might have been rags, but were definitely repurposed from something. And, Yaz felt with a slight flicker of jealousy, absolutely wouldn't start shrinking away on a whim.

Nervously she glanced down at herself; still knee-length, still a high neckline. God, so long as nothing worse happened either, like-

She did her best to stop those thoughts, pointedly staring straight ahead and trying to follow the Doctor's discussion.

"New?" the stranger said. Her voice was slightly hoarse. "No, no, you can't be-"

"Can't we?" the Doctor said. "Surely you get visitors? Nice sunny place like this. Must get travellers all the time."

Meanwhile, triggered by a stray thought, Yaz's dress started to shift. Not noticing any change in length or any new gaps, Yaz didn't notice; the shade slowly shifted from blue, back to its more natural silver, to a pale white. Then that white started to become paler, and paler, and rather than getting brighter the opposite happened.

Ryan glanced at her and frowned for a moment, wondering why the dress was starting to become a dark bronze, almost exactly like-

He glanced at Yaz's oblivious face, then back at the dress, eyes widening as he realised it had become transparent. As if she was wearing nothing beyond her shoes, the thoroughly inadequate string-like panties, and the jacket that only covered her arms, only a vague hint at the edges of the dress gave any indication as to its presence.

"Not since they..." the woman began. Her voice trailed off, eyes slowly moving up Yaz's bare legs. "The... You should leave."

"Why?" the Doctor said, more urgently. "Why should we leave? Who are 'they?'"

There was a crackle in the air. The Doctor and Yaz quickly span around, the woman's eyes widening in fear. Ryan, meanwhile, was greeted by a glimpse of Yaz's tits through the see-through dress.

Before he could comment, and before the Doctor and her new vantage point of Yaz's exposed rear could do so, all their attention was on a surge of energy in the air.

It was a distortion, flickering lights over a distinct spot. The air rippled, electrical power condensing, until those twinkling lights took on a surprisingly human-looking form. He wore green, military-looking gear, a visor over his eyes.

"They want more!" the woman said suddenly. "Quickly, hide!"

The Doctor stared for a second more, apparently in recognition. Then, priorities shifting, she span back around.

Ryan, Graham, the Doctor, the woman, and a Yaz that looked all but naked ran further into the settlement, further into a group of natives. The distant figure started to move closer.

The crowd was already dispersing.

"What's-" Ryan said.

"Vardans!" the Doctor said in a rushed whisper. "Energy-based life forms. They can look human, or they can be pure energy, pure transmission. If I were to guess, they're using the locals as **** labour to get that radio mast we saw working, to ride the waves, well, wherever they wanted. Quick, find somewhere to hide! Meet up back here when he's gone, then we can do something about this."

Her expression set, and the group split up. The Doctor ran off straight ahead, Ryan and Graham in two different directions to the left, following different pockets of the locals. Yaz meanwhile ran right, too focused on finding a place to hide to realise what had happened to her dress.

She ducked into one of the huts, following a few more people into the confined space. It was only then that she had any cause to glance down-

She put a hand over her mouth to stop from shrieking. She needed to hide from the 'Vardan,' but oh god, she needed to hide even more on top of that! She'd worried for a moment about her dress becoming see-through, exposing everything just as much as if it had opened up completely, and apparently that was enough for it to...

Oh god, how long had this happened for? How much had everyone seen?!

Cheeks burning, she crossed her arms over her chest, doing her utmost to ignore the stares of those she'd hidden with and not for the first time cursed the panties she'd found.

And without the Doctor, she didn't know any easy way to return it to normal.