Practice wandless magic

Hermione made her way to the charms classroom and pulled out the feathers used to teach first years how to make objects fly. She decided the safest way to practice would be to do so with objects that wouldn't damage anything, or anyone. Perhaps if she could reliably do things with cushions, while having her wand ready in case things went wrong, she might be able to fix it.

Hermione sat in the room, trying to make the feather rise into the air. Over and over she tried, swishing and flicking her finger while saying the incantation aloud. Minutes turned into hours as she slowly began to get more and more frustrated, but the thought of what would be happening tonight kept popping into her head.

Hermione took a moment to breathe and clear her mind. She hadn't even noticed how sweaty she had become. She thought about removing the robe, but she thought better of it. She was only down to seven borrowed robes. If she lost them, all she had left would be the one ill-fitting robe until the start of term, and she knew that she might lose that, too, if she wasn't careful.

And yet the thought of that gave Hermione a feeling in the pit of her stomach. Some form of excitement, perhaps? She could feel her pussy getting wet...

Hermione shook her head. She decided she needed some water, and she might be able to try again. After trying, and failing, to summon a goblet, just to see if she could, she sighed and just took one of the teacups used in lessons. She also failed at conjuring water to put in the cup without her wand, so she reached into her bag to search for it.

As she reached in, she felt something else inside. Pulling it out revealed the small, vibrating doorknob she had created a few days ago. It was apparently muffled when surrounded by the robes, so neither she nor the Slytherins had heard it.

Hermione's naughty thoughts began to swirl inside her head... She lifted the robe to touch herself briefly, getting some of her juices on her fingers. She coated the knob in the juices before inserting it inside of her, letting it slide right into place!

Gentle waves of pleasure radiated through her body, the movements of the toy massaging her most intimate area. She bit her lip to keep herself from moaning, not that anyone would have heard her. She moved one hand to touch her clitoris and the other to her nipple as she came closer and closer to ecstasy.

It didn't take long for Hermione to orgasm. She was lucky that she had pulled the robes up, otherwise the liquids surely would have been absorbed into it. She pulled the toy out of her and grabbed her wand. With a swish in the air, both toy, and the place where she had sat, were cleaned up. She put the toy inside her bag, this time purposefully making sure it would be muffled. She didn't want the Slytherins finding it if they ever snooped inside her bag!

Hermione felt significantly better after cumming. She looked at the feather on the desk, and began to move her finger through the air as a swish and a flick. "Wingardium Leviosa!"

The feather began to gently rise into the air. It seemed that if Hermione could clear her head, even if it was a post-orgasm clarity, she could do anything she set her mind to.