Jessica goes to the start line.

Shortly before the race was due to begin, Jessica got ready to go. She dressed in a perfectly normal outfit, aside from wearing her running shoes.

Jessica could feel her heart pounding.

"I can always chicken out and wear these clothes for the run," she reassured herself, although deep down she knew that was the last thing she really wanted.

After a short walk to the event, Jessica reached the registration desk and joined a long queue. When it was her turn, she found herself speaking to a kind looking woman in her early 30s.

"Hi there, name?"

"Jessica," she replied, before awkwardly remember to add her surname. "Sorry, I'm a bit nervous."

"Oh no problem dear, I'm sure you'll be fine once the running starts," said the lady.

"Thanks!"

"Now the changing facilities are over there... although it doesn't look like you've brought a change of costume?"

"Oh no I do have one," replied Jessica, "it's underneath these clothes!"

"Ah, very organised! Well in that case you probably don't need the facilities, if you prefer you can just change right here and hand over your outer clothes." replied the lady, smiling at Jessica.

"No no no, I would still like to use the changing rooms please,"Jessica replied, blushing bright red.

"Of course! Here's your robe, just go find an empty cubicle, change into your running costume and then put the robe on. Once you're done, hand over your clothes to my colleague on the left here, and she'll give you a ticket that will be assigned to your clothes for after the race. All clear?"

"Yes, got it!" said Jessica, grabbing the long white robe, and heading for the changing rooms.

She quickly entered an empty cubicle, and stripped off her clothes. The top and pants went easily, but then she became more hesitant.

"Wearing just my underwear is far enough, right?" she asked herself.

She put on the robe over herself, dressed in just her underwear, and put her shoes on, preparing to leave.

As she reached for the door handle, however, she stopped herself.

"No, Jessica, now is not the time for being a chicken!" Jessica thought to herself, before reaching inside the robe and removing her bra, and before giving herself time to think, she slipped off her panties too, leaving her wearing only the robe.

She confidently strolled out of the changing facilities and back to the registration desk.

She walked up and handed over her clothes.

"Thank you very much, here is your ticket, make sure you don't lose it because you'll need to show it to get your clothes back at the end." said the woman, handing Jessica a small yellow ticket with a number on it.

"Um, I don't have any pockets..." Jessica said blushing again.

"Isn't that always the worst thing about women's clothing?" the lady joked,"Maybe just put it in your sock or something. I'm sure it'll be fine!"

"Okay!" said Jessica, slipping the ticket into her right sock.

Jessica walked to the starting line and braced herself. She glanced round awkwardly at all the other runners. There were hundreds of them. Unfortunately, they were all dressed in identical white robes, so Jessica had no idea how their outfits compared to her's.

"The race is about to begin," sounded a voice from a loudspeaker, "participants please gather at the starting line."

Jessica heard people shuffling around her.

"On GO please removed your robes and begin! Okay... 3..."

Jessica felt incredibly nervous.

"2... 1... GO!"

Jessica untied her robe in unison with the other runners and through it to the ground, exposing her completely naked body.