Ginny awoke to the sound of gentle birdsong outside her window, chirping away to inform the Gryffindor students of the new day dawning. The morning sunlight broke through the clouds and beamed onto Hogwarts castle, gazing through the nearby window and casting long shadows across the dormitory. Ginny laid their, dazed, recalling what had become a reoccurring dream in recent times about Hermione. Ginny felt a smirk cross her face; Hermione was a clever girl, there was no doubt. But when it came to experiences of relationships and sex, Hermione had little to her name. That was where Ginny came in; she had made it her own little project to widen Hermione's horizons. The smirk turned to a smile, Ginny had accepted long ago that she had a slutty side, and nothing aroused that side of her more than the image of her taking Hermione out of her book-filled comfort zone, and into her dildo and strap-on infested one. Just how she would do that remained a mystery.

The dream had left her aroused however, and she could feel her pussy becoming wet just picturing what Hermione could look like under her Gryffindor robes; a thin body with firm breasts, a flat stomach and a finely trimmed landing strip to highlight her naughty side. Ginny couldn't help herself; she leaned forward to survey the dormitory, feeling relieved she was alone and pulling her sheets down to reveal her pale athletic body and clean shaven pussy. She began to rub herself, the image of Hermione naked still echoing in her brain. She quickly began to cum, grabbing the sheets with her spare hand and biting down on her lower lip to stop herself screaming out in pleasure. Her legs quivered, she thrusted her hips against her hand violently, a sense of blissful pleasure filling her very skin. Her stomach shuddered, intense spasms cursing through every muscle in her body. When finally her orgasm subsided, she sat up and licked her pussy juice from her fingers as if it were a lollipop, deciding that today would be a good day.

Thirty minutes later, she entered the Great Hall, the smell of english breakfast filling her nostrils. She spotted Harry, Ron and Hermione and took her usual seat next to them, an important question in her mind;

"So a few of my friends are planning on sneaking out of the castle tonight, just for a bit of fun and drinks. Anyone fancy joining us?" She said, before taking a bite of toast.

"Come out with a bunch of girls and listen to you lot ravel on about stupid girl stuff? Yeah right, no thanks!" Laughed Ron.

"Think i'll give that one a miss too Ginny" said an apologetic Harry.

Forcing back a smile, Ginny turned to Hermione, happy the boys had refused. So far all was going to plan.

"Hermione, how about you?"

"First of all Ginny, I think its a terrible idea to sneak out of the castle. Its irresponsible and dangerous. Secondly, I'd rather not get expelled, so i don't think i'll be joining you."

Ginny laughed - she'd expected nothing different.

"Hermione, what was that project you needed me for? The dream reading one you asked me about?"

"The divination report? I need you to be my subject so i can write a report on your dream reading"

"Well… Come out with me tonight and I'll do whatever it is you need."

"Ginny! That's unfair… You know you're the last option I have" scowled Hermione, her tone one of panic. "You're blackmailing me into something I'd never do!"

"It's one night Hermione! It will be fun!" she said.

"Fun?" laughed Ron, "Hermione's idea of fun is gathering around to write a 12 page report on the effectiveness of transfiguration reversal charms, definitely not breaking rules!" he proclaimed, glancing to Harry who was laughing in agreement. There was a long pause, all eyes on Hermione who was thinking hard, casting nervous glances around the hall, particularly towards the teachers table. Then, dejectedly, she spoke;

"Fine Ginny. One night, no trouble, and you have to be my subject and do readings whenever i need them." sighed Hermione, a clear look of discomfort about her. She hated people using her academic determination against her.

"Honestly Hermione, i never thought I'd see the day" laughed Harry, between bites of toast.

"Shut up Harry! Its not like it was my idea." replied an unimpressed Hermione. The conversation dulled, with the 4 of them each hurrying to finish breakfast so that they weren't late to their first lessons. It was Hermione, now seemingly restless, who broke the silence, turning to look at Ginny.

"To be honest Im rather nervous, what if we're caught? What should I wear? Why do we have to drink? Where are we going?"

"Just relax Hermione, it will be fine" replied Ginny, her heart rate quickening with excitement and a smirk spreading over face; she was surprised how easy that had worked. Casting a long glance over Hermione who had returned to her breakfast, It was times like this that Ginny had to fight her slutty half. Her mind wandered to images of them alone in the night, groping each others bodies, tongues locked together in a playful kiss. Ginny allowed herself to become lost in the clouds; lifting hermione's skirt and gently rubbing her clit, sending spasms of pleasure through her body as she enjoyed the new found ecstasy. She came back to reality, casting one more glance at Hermione's figure before wishing them all a good day and heading off to Potions class, a sense of unrelenting excitement filling her veins, eager to finally unleash her slutty persona.