When Janet awoke, she found that she was chained to a wooden crucifix in a dimly lit stone chamber, her arms spread to her sides and feet tied up to the central column. She was wearing a stylish black dress that accentuated her form in a risque manner with the top of the dress extended with a fishnet layer, yet also had cute accessories such as red bows on her skirt and a frilled choker around her neck. Janet soon realized she was in a castle dungeon of sorts, with cells in the hallways around her, and what looked like a standing coffin at the far corner of the hall. It was stylish, with a symbol of a heart with bat wings adorned on it's lid.
Then, the coffin moved in it's place, and Janet witnessed as the lid fell down, revealing Justine von Visceral; she was sleeping with her arms crossed until her eyes opened, and she gave a wicked smile.
"Aah, Janet, you have woken at last. I have looked forward to spending time with you...privately," she spoke in a sultry tone as she stepped out of the coffin, and slowly walked towards her.
Having finally got her barings Janet tried to get free herself from the bonds but that seemed to be a fruitless endevor. Still gagged she was unable to transform to make use of her magic. What did this girl want with her of all people? Forced to watch she glared and hoped to gain a little more information as Justine continued.
Justine gave a little giggle.
"Oh ho, resisting until the end: as expected of a Beacon. Brilliant light that beckons for the true path...Well, I know of something far better."She went right up to Janet, and placed a hand over her cheek, gently caressing it.
"You see, I require someone who knows how the Beacon works, knows where they scheme and plot. Not only do you fit that description, but this presence...You are a pure magical girl. You don't blindly follow Beacon, do you? I can see it in your eyes: you know how cruel and unforgiving Beacon can be. How it treats you like a dog without caring how you feel. But we will change that. Yes, the two of us can change the world..."Justine looked deep into Janet's eyes, and she felt like her vision was turning blurry, as if a bloom filter was placed over her eyes. Whatever the magic was, it was slowly starting to affect Janet's consciousness, her charismatic voice ringing in her head and her touch on her cheek burning like fire.
"You want to serve me, your dear, precious Mistress...You want to devote your entirety to your Lady..." Her touch began to flow with dark magic that swirled around the two. Black bubbles also floated around them, giving the scene a romantic, if horrifying, atmosphere.
Despite the disorienting effect that Justine's magic had, the Spark given to Janet by the Beacon came to life as she focused on resisting the influence. Even though she at times had disagreements with how the Beacon did things it was clear to her that Justine's intensions were less than pure. Contact alone made that clear enough. Janet's defenses were not quite equiped for the influx of dark magic. The two magics warred for supremacy. The lone light in the darkness was close to being snuffed out.
"Just give in to it, Janet...There is no need to be afraid of the dark, for it gives clarity, and peace..." Justine sensually whispered to her ear, her lips creeping closer and closer to her neck, causing her to feel the vampiric girl's breath. She was patient, and willing to slowly break down the Spark over a long period of time, like she did with Stephanie when she was turned into her loyal little suicide bomber. But, Justine learned from her experiences, and was prepared; the dress Janet was put to wear was drenched in corrupting magic, isolating the Beacon's influence from her and making her vulnerable to her temptation.
She looked as Janet's struggle weakened, and then her lips parted to reveal two sharp teeth.
"Become mine, Janet~"In that tender moment, she seductively bit into Janet's neck, like a lover's kiss; she felt a faint, dull pain of her vampiric fangs piercing her, followed by her corrupting magic seeping into her until it enveloped her whole being.
Already losing, and having been weakened and isolated for however long she'd been out, Janet's constitution folded. The corrupting magic consumed her and Justine's suggestions took root. Her mind was like an open book to be rewritten and the magic flooding in could do what it willed. Going limp Janet stared blankly and uttered the faintest whisper.
"...Y-yes...my...Lady.""That's right...Your Lady is right here, granting you sanctuary..." She quietly spoke as she stepped back, and with a handkerchief daintily wiped her lips.
"Now then, let us unleash your potential, Janet! Release your feelings hidden in your heart, and take your true form!" She lifted her arms, and dark magic coalesced in her palms into orbs, followed by her directing the magic into her, like a beam of darkness. Showered in the umbral magic, she then began to transform.
No longer resisting Janet gladly complied and accepted the magic directed toward her. It was more than her ordinary magical girl form could take and as more flowed in her body began to shake and quiver. Her body seeming to lose structure and collapse she slipped from her bonds and fell to the floor. Even though she didn't fight the changes the process was still rather intense and painful. The dark magic was destroying her body. Crying in pain and writhing on the floor she began to transform. Her flesh was melting, transitioning into water from head to toe. Though perhaps toe wouldn't be right. Janet's legs were losing form, dividing and becoming tentacles. Over her head a bell of water began to form. The imagry her transformation implied before had become her new form as a full monster girl.
Breathing heavilly from the transformation Janet inspected what had come of her. after a few moments a smile spread across her face. The red of her iris contrasted the pure blue of her body and looked wild and crazy. Lifting herself up she turned to Justine and bowed slightly.
"Thank you, thank you my Lady! I cannot repay you enough for freeing me from the clutches of The Beacon." Though she just bowed she dropped down and clutched Justine's hand tightly.
Justine smiled widely upon seeing her new servant rise, the mark of Visceral shining brightly red on her chest, forever claimed as Justine's.
"Yes..You are perfect. Simply perfect! Haha...Ha haha..Ooohhohhooohoooo!" She laughed while holding the back of her hand to her mouth.
Elated that Justine was so pleased with the results of her corruption Janet shivered with excitement.
"What will you have me do my Lady?" Her eyes flashed with a wicked gleam. She could not wait to fulfill her Mistress' plans.
"All in due time, Janet. All in due time..." Justine spoke, and turned around, stepping confidently away. Beneath the graceful composure of a noble lady lied the most vicious smile, her fangs bared as she held back another bout of laughter.
This will be the beginning to a pure world... 
Ariamis