Nymphadora Tonks The Nympho

In this alternate timeline, Nymphadora Tonks is in the same year as Ron, Harry and Hermione and the final year at Hogwarts is nineteen, not seventeen. With that out of the way...

Tonks was bored stiff. She was sitting in the Hufflepuff common room with a tall stack of library books laid out before her, fully aware of the fact that she had to sift through all of these to pass her final OWLs exams. Nothing could have less exciting. Honestly, who even cared about studying? In the Wizarding World you always either ended up working for the Ministry or Hogwarts anyway. Luckily, there was one book Tonks had found that was decidedly NOT on the curriculum.

Looking around to make sure she was alone, Tonks pulled out a smaller book from the pile and gazed at its cover. The title read: Sexual Magic and Other Conjurations. Now this was a book she'd want to study, Tonks purred. Naturally this wasn't a book even nineteen-year-olds were allowed to take out without strict permission, but Tonks had an ace up her sleeve. She was a metamorphmagus.

No one had ever come up with a satisfactory explanation for metamorphmagi. They appeared to just be born with the ability, and due to their rarity amongst witches and wizards there wasn't much instruction on the subject. Luckily for Tonks, she had become adept at her shape-shifting herself to a level that she'd had to keep secret. Most people thought she could only do cheesy parlour tricks, like turning her nose into a pig's snout or changing her hair colour (which was worn as a flattering shade of purple right now), but she could actually change her appearance totally; able to mimic anyone and everyone.

It had been almost titillating, Tonks giggled as she remembered how easy it had been to change herself into the guise of Professor Trelawney and walk right into the Hogwarts Restricted Section. She'd even taken it out legitimately! She figured if anyone would read a magical sex book, it would be that old bat, and she was so detached from reality it was unlikely she'd ever know the book had been taken out in her name. So now here it was, Sexual Magic and Other Conjurations. Tonks felt her whole body shiver as she gingerly turned the cover.

She was not disappointed. The very first page featured an illustration of a totally nude witch suspended midair, glistening with sweat as her arms and legs were spread out wide, her face an expression of pure orgasmic pleasure. A naked wizard stood behind the witch with his wand held high and his other wand pointing even higher. Tonks could feel herself salivating just seeing this image. She noticed her hands already reaching down into her skirts, probing her fingers in-between her legs to reach her sweet spot. She bit her lip just thinking of herself in that witch's position, her whole body vibrating with sexual thrill at the idea of total submission.

Tonks wasn't even submissive, but God damn it she'd take something, anything over the stifling atmosphere of Hogwarts. Almost like the school was proving a point, the second she was about to climax she heard someone coming. She instinctively slammed the book shut, pulling her hand out of her skirt and hiding the book amongst the stack. She turned around to see Susan Bones, who seemed none-the-wiser about her little escapade. Phew, Tonks thought before forcing herself to smile,

"Wotcha Suze?"

"Oh hey Tonks. Wow, that's a lot of studying right there," the red-head grinned,

"Yuuup," Tonks sighed, now imagining Bones in that witch's position. God she needed to fuck someone. She could feel herself sweating as Susan sat down next to her. She literally couldn't look at the girl without imagining her clothes off, all naked and sweaty,

"I umm, I've gotta go."

"Oh," Susan raised an eyebrow, "but what about studying?"

"Yup, that's important, but I've really..." Tonks stammered as she grabbed the sex book and clutched it close to her chest, "umm, you know, bathroom."

With that lame excuse out of the way, Tonks almost sprinted to the girl's bathroom and locked herself in behind the stall. She quickly flicked through the pages of the book and found another illustration, this one of massive tentacles writhing around a witch's naked body, curling around her breasts and penetrating her sex. Tonks couldn't help it, she instantly slid her fingers into her slit and came almost instantly. She had to be careful not to let out a low moan she was so incensed.

Panting a little, but otherwise finally able to relax, Tonks sat down and riffled through the pages, her eyes aglow with the book's possibilities:

"Engorgemus" - Cause any body part to increase in size for increased sexual fulfilment.

"Erectus Infinito" - Maintain a full erection.

"Vibratio immedius" - Instigate a vibratory feeling on specific parts of the body.

"Incarcerous" - Produce ropes to bind a participant.

"Bukkakenus" - Conjure multiple erect penises around your head.

Tonks felt herself getting horny again, immediately tempted by any number of these spells. Withdrawing her wand, she pointed it directly at her crotch and mewed,

"Vibratio Immedius." The effect was instant, causing her pussy to emanate with a constant vibratory feeling. She whimpered softly at the pleasurable sensation. God she could have this happen during class and no one would ever know. The thought of this secret sexual exploit made her almost tingle with trepidation. This felt so good...

She had to stop the spell because she was on the verge of cumming again a second time. As much as she enjoyed the feeling, it wasn't much different from just doing it herself. No, what she really wanted was to do all these things with a partner.

The only problem was she didn't have any partner to play with. Despite her outgoing personality, Tonks had always been a bit of a wallflower socially, which may have explained her desire to find the sex book. The fact that she could change her appearance at will actually made her feel more self-conscious. Did boys really like her for her, or was it just her shape-shifting ability? That and the teasing she received as a child, with all the kids calling her a freak. She'd never really gotten past that inhibition.

That would change today though. She realised that she was determined now, and she would go out and find a guy to share in her new sexual awakening. But who? That was the real issue. All the guys she liked were taken: Harry, Ron, Dean Thomas, Hell even Neville Longbottom had Luna.

Tonks let out a loud sigh. What was the point of having this amazing sex book if you only had yourself to mess around with? She thought of that wizard levitating the naked witch and causing her excruciatingly perfect pleasure. God she wished that were her.

Except...hang on... It was like a light-bulb had lit up inside her head. Why should those guys having partners make any difference? I'm a metamorphmagus! I can become any one of their partners in an instant!

Leaving the bathroom stall, Tonks stood in front of the wash basin mirror and gazed intently at her own face. Concentrating deeply, she began to shift her face, making it rounder and paler. Soon her hair had grown longer and lightened into a bright auburn. Tonks grinned at her reflection, or rather, Ginny Weasley's reflection in the mirror. She was now Ginny Weasley, the girlfriend of Harry Potter. Oh this was going to be sweet.