It had been over a day since the last time Melanie had seen her master. Usually she wouldn’t be overly worried; Asmon the Alchemist had a tendency to lock himself in his study, as he always did when he really wanted to get to work. 24 hours was hardly a record. 24 hours without a notification was certainly odd, though. Usually he’d have given her something to work on after he realized he’d be in there for a while. Honestly, she was a bit annoyed he hadn’t - she was here to learn from him, not as a glorified cashier for him to ignore as he worked on something new. 

    So after Melanie came back from her weekly expedition to gather some ingredients, she went up to the second floor of the shop and to his room at the end of the hall. She found he still wasn’t out - he hadn’t even touched the food she’d left for him! - she decided that enough was enough. She was going to make him come out, whether he liked it or not! Melanie knocked on his door loudly. “Master Asmon! Come out here right now!” she called, to no response. “If you don’t come out here right now, we’re going to have a problem!” Silence. She rolled up her sleeves and walked back down the hall, taking a runner’s stance. He’d hear this. 

    Asmon was started out of his slumber by the knocking and calls. In his grogginess he didn’t bother to respond, focused instead on blinking the sleep out of his eyes. Right. Don’t breath in the fumes from the sleep potion until it’s been a few minutes. They start strong. He got up and stretched, walking to the door as he heard footsteps outside. Had she given up then? He shrugged, undoing several loud locks and not hearing the significantly faster approaching footsteps. Both he and Melanie were surprised when she barged her way through the now-unlocked door and kept going. 

    The assistant alchemist realized her mistake too late to stop; she tried to slow, but momentum carried her forward into the opposite wall. Asmon had thankfully not decided to put his potion shelf directly across from the door, so Melanie wouldn’t be doused in a dozen magical liquids. But it was nearby, and one on the top shelf shook and wobbled… “Ow, ow, ow-” Melanie groaned, “That was a mis-OW!” The bottle toppled and crashed down directly on Melanie’s head. 

    The viscous pink liquid splashed out all over the poor girl as the safety-glass bottle shattered into little cubes; it broke easily so there wasn’t much in the way of physical injury, but the potion was all over her now, dyeing parts of her short blonde hair and pale skin pink and soaking through her dress. Asmon groaned. “You shouldn’t have done that… give me a sec to find the label so I know what that does, I’ll figure out if you need an antidote.” he said, and started to look on the floor. Melanie followed his instructions, staying still and trying not to get the potion in more places than it needed to be. But she was already starting to feel strange. She was feeling so hot, like the temperature of the room had gone up twenty degrees in between her entrance and now. It started in the places the potion had covered, but as it soaked into her clothes, it started to sizzle and seemed to dissolve into her, and the feeling spread. “M-Master, what potion is thi- ohhhhh gods-” 

    Asmon looked up to see what she was worried about - the pink color was spreading through her hair, but that probably wasn’t it. Her skin was turning red where the potion touched… but it didn’t look like a burn. No, what was getting to her seemed to be something internal; her face was a mask of sheer lust, her hand jerking down towards her lower decks as her skin continued to redden. “Oh, I think that’s-” her hand reached it’s destination and she moaned loudly, and her chest seemed to jump up a cup size, breasts bouncing around from the speed of it. “The succubus dye. It’s a, uh, marital aid…” A very hot one, he noted as he felt something of his own grow down below. But he couldn’t think about that - he had to brew up the reversal potion now that he knew what it was. Shouldn’t be too hard. At least if he could stop glancing over at his assistant to see how her changes were progressing. 

    The pace was rapid, and seemed to increase as she started to outright masturbate where she stood. Melanie was so, so horny, she couldn’t help herself, and apparently neither could her fingers! She felt so close already, but she couldn’t get the finish she wanted. Her skin had turned from pale peach to a bright red as she worked herself over. Her hair was lengthening, down to her shoulders, past the small of her back and with no sign of stopping, turning a bubblegum pink at the same time. Her breasts ballooned from what had been modest B-Cups (that might have been As but she used a bigger bra anyway), to C and then D. Her hips and ass flared out, becoming significantly larger with more to grab, while her waist narrowed to give her an hourglass figure. Her clothes couldn’t take it - and frankly, she couldn’t take her clothes, shucking them off in an attempt to cool down, followed shortly by her undergarments. Her eyes had changed from bright blue, to sunny yellow with black sclera as she became a demon, while a long tail with a heart on the end whipped out from her bottom. She moaned and groaned in an increasingly sultry voice, and finally, with the completion of her change, came. This was… very distracting for her master, so it took him until after she was done to finish the potion. 

    “Right, Melanie, don’t panic, I’ve got the antidote-” he started, bringing it over to his now rather sexy apprentice - but, well, he couldn’t do anything, it was Melanie! He raised the potion to pour it down on her, but before he could tip it over a tail flashed out and snatched it. 

    “This antidote~?” The new succubus said in a sexy voice, “Well, better be careful with it… oops~!” she whipped her tail out and sent the potion sailing out the window to who knows where. “Oh no, guess I’m a succubus forever now~” It was a temporary potion, but she didn’t exactly know that. “Guess you’re gonna have to take responsibility for that, master~” The last word got particular emphasis, the way it dripped out of her lips telling quite a lot of her plans. It had never been sexy before, but now it caused Asmon to really wish he had looser pants. 

    “We can’t, really-” he said, “It would be immoral-” 

    “And what does a demon care about morality?” Melanie said, a hand shoving its way down Asmon’s pants. The look in her eyes made it quite clear that the man would have no choice in the matter. 

    Asmon groaned. Melanie would be… very embarrassed later, to say the least, and so would he… but well, she wasn’t giving him a choice now was she?