At the start

Martha slumped back in her chair. He couldn't be serious. Ok, the Doctor did need her help sometimes, but that was going a bit far surely?

Yes, she owed him, but not enough to strip down for a whole planet!

Maybe he was wrong. Yes, she told herself, that was a possibility. He had only mentioned it offhand at the end, he might have misremembered. Or for that matter just landed in the wrong place.

Ok, how did this work... Martha scanned the console, trying to remember what the Doctor had done before. Ok, that one activated the scanner. She switched it on.

And was immediately greeted with the view of the street outside. Some people were wearing clothes, yes, but only the men. Every woman, accounted for a myriad of styles, was happily walking down the street. They were either barefoot or, at best, wearing sandals.

No jeans, no tops, no jackets, no underwear. Hell, not even bloody pasties. Every inch of them was on full display.

There had to be a loophole. Trembling, Martha flicked another couple of switches. If travel with the Doctor had taught her anything, it was that there was always a way out.

So... There! She called up the TARDIS database, something she'd seen the Doctor do shockingly few times. What had he called the planet? Right, Sirius Beta, would that be under S for Sirius or B for Beta, or H for humiliating?

Eventually she found it, and quickly clicked open the entry.

And it was so much worse than she thought.

The planet Sirius Beta is most known for the dress sense of local females, or rather the lack thereof. Perfect climate control keeps every day dry and sunny, and the women take advantage of not needing to be afraid of the elements by never donning any form of clothing. Indeed, it is considered a punishable offense for any woman, local or visitor, to cover up their body. A common form of compliment is for a photo to be taken, thus immortalising the female form which the planet so admires.

No. No way. Martha shook her head, backing away from the screen. Family of Blood or not, that was not happening.

Another way, another... Right! She'd seen the Doctor fly the TARDIS before. Surely she could figure out a way to land somewhere less terrible. He used that lever to take off, and the coordinates were-

She turned her head, and her blood ran cold.

The Doctor was gone. At some point he must have woken up from the transfer, while she was either too distracted by the video or by reading. The TARDIS door was open.

She hurried over to it, peering out.

"Doctor!" she shouted, then hesitated. Wait, no. "John! John Smith!"

She could just see him in the distance, most of the way down the street. He didn't turn; maybe he couldn't hear her, or maybe he was too dazed to recognise his false name.

Oh god, she had to fetch him. Out there. On the planet of legally enforced nudity.

Despite what she'd hoped, there didn't seem to be any way around it.