Caught snooping in the bus

Spying on women's feet and footwear during your bus ride home had always been a favorite pastime of yours, you'd even started recording candid "hidden cam" videos of the unsuspecting soles, selling them online for a pretty sum on money ... which is what allowed you to buy a vial of the serum you'd heard about a few months back.

As soon as it got delivered to your letterbox, you rushed to open the package, and read up on the little pamphlet, going over how it worked and more importantly for how long. Eager to test it the next day on your ride home ...

Upon getting on board, you noticed the regular girls, the bus wasn't too packed so you moved to an empty seat at the back before chugging down the contents of the vial.
And damn was it a fast acting drug, no more than a minute after drinking it, your body began to shrink down to the size of a bug, struggling to find your way out of the pile of clothes you now found yourself under, you managed to make your way to the girls you liked the most.

Hanging around the feet of a girl in a red dress and heels, you proceeded to take a deep whiff of the scent of her feet, but you didn't quite get to enjoy it for long, as a slightly older lady in business attire noticed what you were doing, and with a grin on her face, spoke up:

"Excuse me miss, but what's that at your feet ?"

As the young lady busy browsing her phone before looked down at you in disgust, attracting the attention of other passengers too.
She then started recording a video of you as she lifted her heel:

"Is this what you wanted to see ? Little vermine ..."
"Should I squish it beneath my heel ?"

She asked, as now the other passengers were getting more and more interested in what was going on ... then the older woman spoke again, which sent shivers down your spine ... terrified by her words.

"I think you should, put it out of it's misery ... it's obviously suffering from being in that state"

The red heeled girl, validated in her decision by the comments of others then said:
"Yeah you're right, but first I want to make sure I can capture it for Instagram, my viewers are gonna love this one"

As she began slowly lowering her heel upon you.