Serena had everything an aspiring witch could ask for on her path to a cozy future; clout, fame and a hefty helping of admirers of all genders and sapient species known to witchkind. The only thing she lacked was a passing grade in alchemy.
Potion brewing had never been the strong suit of neither Serena's family nor her coven. "Our kindred is a set of witches destined for greatness, not for mushing together magical skin scream," her mother liked to say. And Serena had always taken that to heart. Perhaps she could have actually studied alchemy, paid attention during class and worked her way to a sufficient grade that way; but she hadn't known she would fail at the start of the year! All divinations she asked for told her she would pass, seeing how her year was just bad at alchemy in general.
That was the case until fate sent a new transfer student to her class. One Meredith Stintleaf from some barely known coven in the south. Serena hated the plain looking witch from the moment she first locked eyes with her. Meddy, as Serena would mockingly call her, was nothing special to look at. What she lacked in first impressions though she more than made up for with the entertainment her pronounced lisp provided; oh and she was an absolute goddess in the alchemical arts as well.
Meddy was so good, in fact, that their alchemy teacher often asked the lisping bitch to help teach the class, direct experiments and come up with projects to further the class's understanding of the subject. Knowing precise instructions being misunderstood could cause serious harm Meddy often made sure to hand out important notes and instructions in writing.
Serena and her gang had made no secret about disliking Meddy for being such a teacher's pet, often mocking her for that and pettier things, especially her disability. That hilarious lisp made it impossible for Serena to listen to that nerd for longer than a few seconds. Because Serena was so well-known and liked by most the class was initially not very receptive to being taught by a witch their age that couldn't even talk right; that changed though, slowly, when that bitch flaunted her skill one day.
After another round of terrible alchemy exams her alchemy teacher had forced them to meet up after class. Serena was beyond annoyed at that — she had to cancel a promising date with a hunky werewolf last minute because of it!
The anger Serena had felt when she entered class for whatever her teacher wanted of them quickly turned into amazement, which quickly turned into disgust at what she saw. Stintleaf, that lisping swamp-dwelling bumpkin stood by the teacher's desk.
What followed was a presentation so intricate and boring, Serena and some of her peers fell asleep. They woke, with a start, when near the end of it the rest of the class had been gasping and murmuring amongst themselves. "And dith little brew here is what my coven callth twee-bawk," Meddy said, or tried to say. She put a pipette in a bottle and put a few drops of the murky potion onto her hand. Almost instantly the skin on her hand torned a dark brown, thickening and even growing a branch. "It'th completely reverthible," Stintleaf explained as she demonstrated her hand was still nimble by flexing her fingers randomly. A few drops of some other potions later her hand was back to normal.
Serena was disgusted by what she had seen. Who would want to turn their skin into tree bark? It looked scratchy and disgusting. After the demonstration ended the witch sitting next to Serena later informed her she missed the more impressive stuff. Apparently Meddy's coven was known for their inventive alchemical prowess above all. They had some weird thing called a 'scientific method' that meant they could use maths and other weird calculations to make reliable brews of any kind.
A ridiculous notion, Serena thought. No witch she had ever heard of learnt anything new simply by studying. Witchhood was all about pacts with creatures naturally adept in magics, everyone knew that. Yet she couldn't deny that there was some merit to what the lisping nuisance had shown off.
After that most of the class was receptive to learning from Meddy. All except Serena. She couldn't accept learning some nonesense from a bumpkin that came from some swamp, spouting nonesense; and with a lisp to boot! Serena couldn't remain complacent, however, as she soon realized even her closest friends learnt Meddy's methods and got way better grades during the exams that followed. The divinations Serena asked for to see if she passed alchemy class became less hopeful, as well.
But there was still some hope! Serena heard rumors that Meddy was working on something she called a 'witch brew', a name that could only mean she found a way to enhance her own witchy powers. If it worked on her — which Serena was dead certain since nobody with a lisp that hard could be good at anything — surely it would work on her!
So on that night, that's exactly what Serena did. For courtesy's sake she decided to knock on the door to Meddy's dorm room. She even managed to maintain her smile when she saw how confused and disgusted Stintleaf looked when she opened the door.
"Yeth?" Meredith asked in her lispy voice, "Is there anyfing you need, Therena?"
It took a lot for Serena to not correct this dimwit on how to pronounce her name. She simply smiled all the wider as she said "Heyyy, so...I head you were making a special potion, called 'witch brew'. That right? I'd be super interested in sampling it if you get it to a stable status or whatever it's called. Like, it'd totes upgrade your witchy knowledge and skill, right?"
At first it looked like Meddy had no idea what Serena was talking about. She mouthed "Witch brew" a few times before recognition dawned on her face like a wildfire, her eyes shooting wide open, racing across Serena's face. A quirk of the lisping witch's lips betrayed a hint of joy, which was understandable. This was the first time Serena was nice to her, after all. Anyone would be happy about that.
Meddy cleared her throat before replying in a low whisper. "Riight, riight, yeth, the witch brew," she said, her grin widening, "Yeah I can let you thample it. In fact, I wanted to athk you to do tho anyway. I don't keep it in here, we need to go to the thtables."
Serena fluttered her eyes. She had expected to be met with resistance, initially at least. Having Meddy give in to her demands was all the sweeter for her. Perhaps she was slowly learning her place after all. "Good," Serena whispered back, motioning for Stintleaf to lead the way, "Let's go right now."
The bumpkin witch Meddy lead Serena to the stables. The heir to the name Hexum could swear the lisping witch was giggling gleefully every so often when she shot Serena a glance. It almost felt bad to exploit her that way. Almost.
The two witches made their way to the stables through the back door. Serena thought it a bit odd, but perhaps Meddy wanted the extra secrecy. Once inside Meredith checked nobody else was around and revealed a small chest hidden below a hay bale. From within she produce a small vial she held out to Serena.
The liquid inside had a dimly iridescent quality to it. The sight alone made Serena feel tense as she grabbed hold of the witch brew. It was a potent mixture, that much was certain; she could feel the potion's mere presence tingling on her skin, spreading warmth throughout her body.
"How long will this last?" Serena asked, her voice sounding strange to her own ears. A bit too sultry, perhaps.
Meddy replied "Oh, it should latht for a week." She motioned for Serena to drink the brew. Serena did so without hesitation, downing the entire contents of the vial in one gulp.
The effect was immediate. The world seemed to spin faster, making Serena feel lightheaded. Her heart raced and her breathing became shallow. All of a sudden she felt an overwhelming urge to touch herself, to pleasure herself. To have sex.
It was a powerful feeling, one that took her breath away.
When Serena gave Meddy a terrified look, the bumpkin witch smiled almost manically. "Holy thit you drank it. I thought it would be harder to feed you such a potent aphrodithiac."
"What's that mean?" Serena asked, her voice trembling. She didn't know what she was saying anymore.
Meddy's smile widened. "It means you're ready for anything," she said, looking at Serena like she was some kind of prize. "Anything you're worth, at leatht. You jutht drank something that could make a bull go crathy with lutht for a month. And well, the feeling of dethire won't go away until you thatithfy it."
Serena moaned as she cupped her breast, feeling the desire burning within as she looked at Meredith. "Lust? A-aphrodisiac!?" the heir to the noble house of Hexum exclaimed, looking around frantically.
The lisping witch cackled and nodded. "Dat's it! You got it thith time! You gotta fuck or you'll go crazy! Tho take your pick! We got pigth in here, horthes, werewolveth; you name it, you can find it in these thtables!"
Serena gaped at Meredith, drool running from one side of her mouth as her mind fogged up more. "I-I can't. I can't just fuck a mere beast! I am a Hexum!"
When Meredith had had her fill of watching Serena struggle to stand, moaning as she groped herself uselessly she moved in, supporting the lust-drunk witch on her shoulder. "Come on then. Name the beatht and I'll guide you to the right pen."
Serena glared at Meddy. She wished she had the presence of mind to refuse her, to just get away and run to her dorm. But she was burning with desire, almost hyperventilating with arousal.
"I-I want," Serena began, "I want you to lead me to