A few hours later

Hermione collapsed on one of the squishy armchairs and pulled the vibrator out of her pussy. In the span of a few hours of practice, she had gotten a decent headway into learning how to resist her own arousal when she had to.

She noticed that, when great orgasms came to her, she would tend to overdo spells. Tables and chairs lay broken on the ground from when she had tried to knock them back or make them fly in the air. She'd have to visit the room of requirement again to see if she could use defensive magic while feeling the ecstasy that she was so weak to...

As Hermione waved her hand to repair the broken furniture, she caught a whiff of herself. She reeked of both the sweat of effort and the aroma of her juices. Hermione looked at the clock and saw she had an hour before dinner.

She made her way to the Gryffindor bathroom and turned on a shower to clean herself off quickly with warm water to ease the muscles in her groin. Knowing that the Slytherins would make her masturbate for them in the great hall, she decided to give herself a break and not touch it for a while, hoping that it would be easy enough to make herself cum.

As the warm water washed over her, she took a moment to try to plan... Knowing the Slytherins, they'd try something with the polyjuice potion... They'd have to take one of her hairs. She'd have to make a deal with the Slytherins to make sure they didn't make more **** for Hermione, or go ruining her reputation by running out of the castle... She'd bring it up at dinner. Hopefully, the Slytherins would be in a better mood by then.

Once she was significantly cleaned and dried, she gently stroked her labia. They were a little numb after practicing for a few hours, but if she played with her clitoris at dinner, the Slytherins shouldn't notice anything.

As she walked down to the great hall, she felt the cool air of the castle around her body. She had to admit, it did feel really good... Despite everything she had endured, she loved the feeling of strolling nude... It was just the thought of how others might react that both feared and excited her.

The Slytherins were not in the great hall when she arrived. To save time, Hermione hopped herself up onto the high table and laid a napkin underneath her crotch to make the mess easier to clean. She laid back, her legs spread to the doorway, ready to begin when they arrived.

As soon as the Slytherins entered the room, they saw Hermione splayed on the table. While they were too far away to see their faces, Hermione thought she saw them walking with more energy, at least.

Hermione got to work, going as fast as she could. Her goal this time was less sensuality and more timing, as she wanted to bring up the possibility of her deal to the Slytherins. Her mind raced to all the naughty thoughts and situations she had imagined over the past few weeks until...

"Wow! She squirted already!" Millicent exclaimed, astonished.

As Hermione sat at the table, Daphne spoke up as well. "I'm surprised you were able to cum that fast, given how red your muff looks... You've been busy down there!"

Hermione blushed as she turned to Pansy. "Pansy... I wanted to talk to you about the Polyjuice Potion task..."

"Hm?" Pansy barely looked up from her mutton. She was apparently still somewhat miffed at Hermione, even when she hadn't done anything wrong herself.

"I wanted to make you a little deal."