Harley catches a train. But first...

In her Gotham City apartment, Barbara Gordon scrutinised herself in the full-length mirror, and she was not satisfied.

Outfit number fourteen was a pair of black yoga pants and a black lycra vest top. This created the slim line she was going for, but the two tight items of clothing had a tendency to part from each other whenever she moved, and Barbara couldn't see herself fighting crime successfully if her belly button kept popping out. In addition, the thick gloves and heavy boots that she had decided were necessary for wall climbing and similar, looked odd against the thin outfit.

She shook her head at her reflection, then shook off the gloves and bent to untie her boots.

A ripping noise from her rear gave her another reason not to wear these yoga pants. And her bright pink knickers, adorning her backside as it bulged through the split seam, would not help her stay hidden in the shadows.

Padding to her bed in bare feet, awkward with her split trousers, Barbara picked up a package which had arrived that morning and tore it open, hoping to find outfit number fifteen which she had ordered online. She pulled some of the material out and looked at it. She had ordered it in black, but there appeared to have been a screw-up.

"Purple?"

* * *

Harley vaulted a coupling, increasing her speed as she hit the ground still sprinting.

"Harley Quinn!" another shout from the police behind her, she was leaving them further behind by the moment. The exertion was too much for her panties, which had been overstretched and torn to rags. Her ample chest heaved and bounced, and Harley wished she had a decent sports bra on for this sort of work-out.

There was the ping of a richocet as a bullet hit a train car next to her.

"Hey! Careful with those things!" Harley shouted back over her shoulder, then she skidded sideways around the end of another train car, and began to skip across rows of tracks. A pink figure, blonde hair tinged red and blue, prancing merrily over metal and wood.

Ahead of her, a goods train was pulling out. Exactly what she was looking for.

"Stop where you are!" the shout came again.

"If I didn't before, why would I now?!" Harley called back, then to herself, "Didn't even say please."

She was only a few metres from the train now, which was picking up more speed. Harley changed direction, running alongside it. The police, seeing what she was doing, tried to run after her faster.

The train was going quicker than Harley, she could see each carriage as they went past.

"Lumber, no." Harley said to herself as a flatbed of wooden planks went past, "Potatoes?" a carriage with enormous boxes of produce went past, "Not chemical waste, either, too many bad memories." the silver tanker trailer rolled past, but right behind this came a large mostly-empty carriage with an open door, "Perfect!"

Harley jumped, landing inside the carriage. Just in time too, another moment and it would have been going too fast for her to make the jump. The police had no chance.

Harley looked at the ragged remains of her underwear, she tugged at the heart-patterned fabric and it came off her body with barely a sound. She threw it out of the open door.

"Little something to remember me by, boys!" Harley shouted back, as the train carried her further to freedom.