Problem with bugs

Note: Thanks to deviantart user XanderGrogan2016. Who gave me an idea for this chapter.

“You left me there.” Hermione hissed at Emily, after she asked why Hermione was mad.
“It wasn't on purpose.” Emily said and put her hands up in surrender gesture. “Filch caught me when I left the library and gave me a detention.”
Emily explained.
“Stil don't understand why are you complaining. It sounds like you had fun.” Emily added with a smirk.
Hermione rolled her eyes.
“That's not the point.” She snapped.
But couldn't pretend to be mad at Emily any longer.
She was right.
Her night with Neville was interesting. And definitely fun.
After he caught her naked in bondage sneaking troug the library.
They had some intimate moments.
And even when there was no sex involved.
She enjoyed it.

“I am sorry.” Emily said quietly and tried to kiss Hermione.
She let her do it.
As they were making out, they didn't notice a small, moth-like bug.
Whom landed on Hermione's cloak.

“I need to go, I have class.”
Hermione said when she ended the kissing session.
“I still don't understand why are you taking Muggle studies." Complained Emily.
“It's interesting to look at muggles from a wizard's perspective."
Hermione explained as she turned on her heel and started walking to the class.
Emily watches her departure.
As she imagined what she would do with body under that cloak.
She noticed Hermione's bare feet.
That wasn't nothing unusual, Hermione was walking barefoot for weeks now. However, usually her cloak, which was her only piece of clothing, reached to the floor. So her feet were not visible.
“Wierd, I thought that the cloak was longer.” Emily thought as she watched Hermione's dirty soles disappear in the classroom.

Meanwhile the small bug on the Hermione's cloak continued to eat the threads of the fabric.
And the more he ate, the more bugs appeared seemingly out of nowhere.

When Hermione seated herself in the class. Her cloak already ended under her knees. She didn't notice it yet, as she paid attention to the Professor starting the lecture. Not knowing her only piece of clothing is slowly disappearing.
However it didn't take her too long to discover her predicament.
After Hermione answered one of the Professor's questions, she put her hands on her knees.
She immediately noticed her hands touched the skin.
Hermione looked down and gasped.
In front of her eyes her cloak was disappearing.
With a shock, she watched the fabric above her knees slowly but steadily vanishing.
“Are you alright Ms. Granger?”
The professor asked when Hermione gasped.
“I..yes. I just need to use the toilet.”
The professor nodded and continued with the lecture.
Hermione as quickly as possible left the class.
Outside she looked at her cloak.
It ended already in the middle of her tights.
As she focused more on the hem of the fabric.
She noticed some moth-like bugs on it, they were barely visible as they had the same color as the fabric they ware eating.
Hermione shivered with disgust.
The idea of bugs crawling all over her clothes was not a pleasant one.
She instinctively started unbuttoning the cloak.
But stopped herself.
There was no point in taking it off to get rid of the bugs and be naked. As they probably will eat it and she will end up naked anyway.
Hermione chose to stay clothed as long as possible.
She needed to focus on getting somewhere safe before her cloak vanished.
So she started to walk through the hallway.
Listening for possible presence of people.
Luckily the hallway was empty as everyone was in the classes.
But that could change any second.
“I need to hide.”
Hermione said to herself when she checked the state of her cloak.
It ended just under her butt and her wet crotch.
She wasn't surprised she was aroused.
The situation was pushing all her buttons.
The possibility she will ends up naked in the middle of the day in the school hallway.
Maybee seen and caught by other students.
Maybee some of the will punish her for not wearing school uniform.
Her hand found its way into her hot wet crotch.
A wave of pleasure ran over her.
“No not here.”
Hermione managed to stop herself and take her hand away.
She leaned on the wall to calm herself, and the cold stone she felt on her buttcheeks told her that her cloak was almost gone.
It was more of a short top than a cloak now.

Hermione quickly continued her walk.
Almost naked, the cloak was so short that her nipples started to peek from under it.
When she reached the room she chose as her hiding spot.
The last threads of the cloak disappeared.
The only thing left was the white collar. For some reason, the bugs didn't eat it.
Hermione took it off and let it fall on the floor.
Into the water next to her bare feet.
Then completely naked she entered the Moaning Myrtle toilets.