"Fair enough," the witch admitted with a shrug. She didn't know what she would do if someone else bested her in Potions. Hex them at the very least, not that such a situation was something she really needed to worry about. No-one in her year was about to be getting better than her with potions anytime soon.
"Potions are extraordinarily useful, I'm glad you like them," Vivianna admitted smoothly, "and you're right of course, brewing a potion correctly takes a lot more time and effort than flicking a wand." Not that the redhead had anything against spell casing, but the average wizard was under the impression that for every potion, there was a spell that could do the exact same thing. Those particular idiots couldn't be more wrong.
When the other student admitted that her best subject was Transfigurations, the redhead froze for a moment. Well, that was quite the fortunate coincidence. Of course, Vivianana wouldn't say anything yet. She would say something after Nessarose realized how much she could gain from her tutelage. Then, the other girl would be at least twice as likely to agree to an exchanging of knowledge.
Eyes falling on the neglected potion, Vivianna's sharp eyes observed the slight simmering happening along the outside rim of the caldron. "You need to stir that," the redhead stated, eyes glued to the caldron as if she couldn't bare to look away, "and add an extra clockwise stir, it'll break down the root further so that the solution doesn't become too potent."
Realizing that she was practically telling the other Slytherin how to brew her potion, Vivianna winced internally. Hopefully the brunette would take the advice for what it was; an automatic reaction from a talented brewer. If Nessarose took it the wrong way like so many others did, well, it wasn't like Vivianna didn't have plenty of housemates who disliked her.