--

"Hya~!" You mewl into your gag as the riding crop strikes your round, exposed buttock with a loud smack. That unbearable heat in your belly boils over as Libromancer continues to spank you, thoroughly abusing the perfect, fleshy globes of your ass.

Ah, this is heaven~!

This pain! This pleasure! Both, intermingled. The utter bliss of getting humiliated, getting abused by the sadistic girl you love~!

"What's this?" You hear your love call out as you climax for the sixth time today. You feel your muscles lock up as another wave of pleasure sears through your brain. "Ha! You're really getting off on this, aren't you?"

You let out a whimper, playing your role as Luminous Libromancer's submissive test subject down to the very last whimper. Hmm. She's really not that bad at this! Of course, you'll need to establish some safewords in the future, but she's definitely got the right attitude!

Ah, she's so cute and sadistic. It's making you feel all kinds of wonderful sensations! This cocktail of submissive helplessness, the feeling of getting bullied by your sadistic, self-serving love…

It's breathtaking!

The riding crop smacks your ass again, causing it to jiggle. You shiver; let yourself writhe in your bonds from the sensation. A touch of salt to go with the sweet~! Gosh, you really need to do bondage play like this with your maids more often. It's been so long since you were on the receiving end of a whipping like this~!

Bit of an uneven hand with that riding crop, though. Libromancer's paying too much attention to your ass! To be fair, it is a nice ass. You've lovingly cultivated your body to have just the right amount of soft squish. Your butt's truly a work of art, two plush, lovely cushions that anyone would want to squeeze and spank~!

But there's more of your body you wanted to offer up to your love! Your perfect, full tits! Your soft belly! Your thighs, your calves, even your exposed armpits! Ah~! You'd willingly give all of yourself up to be abused if that's what your love wants you to do~!

That's what love's all about, after all!

Libromancer struts around you, and you shift as your love comes into view. Gosh, she's got such a sadistic smile on her face! Her eyes are practically glowing too! They're like purple lights, glowing with cat-like malice!

What does she have in store next? Ooh, you can't wait to find out!

"Well, that let me see how you react to pain. Now, what happens if I do this?" Your purple-haired love croons as she waggles her fingers, her eyes lighting up as she channels her mana. Her magic washes over you like a sudden cold chill, and you feel yourself involuntarily shivering again.

Some kind of cantrip? What is it? It didn't actually ping against the ridiculously complex magical resistance enchantment you threw on yourself, so it's not immediately deleterious to your being…

That's when you start feeling light-headed. You blink as spots begin to fill your vision. Hey, everything seems so bright now…

A sudden cool breeze brushes against your sodden sex, and you shriek through your gag. What was that?! Was it…

Oh. Oh no, it couldn't be…

"Every spell does have its uses!" Libromancer cheers. "Including this sensitivity enhancement spell I picked up from the last MAGICON I went to!"

Oh gosh, now you're really feeling it. You gulp, feeling your palms go sweaty and kind of clammy. The currents of air that buffet against your skin? Those are heightened; they're like cold gusts buffeting your exposed body. You can feel goosebumps beginning to pop up across your skin from the feeling. The heat within your core's heightened; it's like there's a nuclear reactor pumping warmth in between your legs. It's so hot you can feel the warmth of your pussy when you rub the slick insides of your thighs together.

Every twitch of your body's starting to elicit uncomfortable pleasure. When you sway your chest, causing your breasts to jiggle and heave, the sensation of your titties bouncing sends wonderful spikes of endorphins rushing through your blood. Even the touch of the cool air against your stiff nipples is almost too much to bear.

Times ten sensitivity huh? That's honestly kind of child's play. It's not nearly enough to break you.

But it is enough that you can feel yourself quiver with anticipation.

Oh, this really is going to be a fun time! You'll give your love points for being inventive. Minus points for not going far enough, you're a big girl, and you can take all kinds of abuse. And return it in kind~!

Luminous Libromancer leans in now, blowing a quick breath right across the side of your neck. Ah~! It's that lovely bundle of nerves just above your collarbone that you like your pets to nibble and suck on~!

"Hyee~!" You squeak out through your gag as you cum lightly from the brief stimulation. Ah, it's almost as good as getting a hickey from your love~! Oh, right, you almost forgot to strain and writhe against your bonds, it wouldn't do to get distracted. You've still got your role to play, after all. Not that your love's even aware that you're playing a role right now.

Hee.

Your eyes widen now as you see your love hold up a… A feather between her fingers. You do your best to put on an expression of fear mixed with arousal. It's convincing enough to get your love to let out another malicious giggle.

"Yes, that's right. You know exactly what I'm going to do with this, don't you?"

And with that cruel smile lining her lips, the sadistic girl you love reaches down and brushes the feather across your right nipple.

The sensation~! The glorious sensation! That feathery tickling feeling, heightened ten times over? Coupled with the sheer lust that's been boiling over in your body, stoked by Libromancer's untender hands? Added onto the painful pleasure that she's coaxed out of you for hours at this point?

This is enough to truly send you over the edge.

You howl like a woman possessed as you climax hard. Libromancer laughs, glee filling her voice as she watches you ruin yourself, as she sees your body jerk and shudder from the paroxysms of pleasure she's put you through.

Of course, this still isn't enough to break your mind, but phew~!

As Libromancer lowers her hand so she can brush that feather across your overstimulated slit, the last thing that crosses your mind before you start willingly, eagerly losing yourself to masochistic pleasure?

Gosh, you're so glad you decided to see your love today. This is the best workout you've gotten in a while!

And you barely had to train her up!

What a great way to get through the middle of the week~!

--

Hours after that point, you find yourself lying in bed, panting, facing your love. Sweat pours down your brow, staining the sheets. Red welts mark your skin from where Libromancer abused you. Your ass is a thing to behold, the pale perfect globes of your buttocks marred now by red welts. Your tits, your belly, and your thighs also bear marks where Libromancer whipped the piss out of you.

Everything's still overly sensitive and achy. Your tits feel tender, and even after the sensitivity spell wore off, the brush of the bedsheets against the swollen peaks of your nips causes you to whimper.

Libromancer snakes an arm around you now, winding a possessive hand around your thin waist.

"Stop whining; the whole point of this 'aftercare' exercise is so you stop doing that," your love grumps out.

"… To be more exact, the whole point of aftercare is to address the physical and mental well-being of your partner," you say.

"Yes, yes. You're my adorable test subject, so it's imperative that I see to your wellbeing," Libromancer rolls her eyes, turning over now to lie down on the bed. "You don't have to repeat your argument; I accepted it the first time, didn't I?"

She did, actually. Surprisingly quickly too!

"Hugging causes your adorable brain to release oxytocin, which causes your heart rate to slow down and reduces your stress and anxiety," Libromancer continues to state clinically. "It's an important part of social bonding. Intimacy is also an important part of social bonding and welfare in general. I'm a genius wizard, my dear test subject; of course I'd consider something like that after having it pointed out to me."

"You had to have it pointed out to you, though," you point out yourself.

"… I would've come up with it myself," your love waves away glibly. "Eventually. Eh. You would have been fine."

Uwah. So mean…

Still. This is nice. Pillowtalk is nice. Just being close to your love's nice. You sniff, inhaling her scent. Ah, the smell of dusty old tomes. Paper, parchment, and ink with just a hint of female fragrance. You didn't think libraries could smell sexy, but your love's pulling that off pretty nicely!

Your love's grip around your waist becomes a bit tighter. You squeak as she pulls herself closer to your body and closes her eyes. "Now shut up so I can rest my eyes. I need rest so I can go over the data I pulled from you tomorrow with fresh eyes."

Morbid curiosity's what drives your next conversational tangent. "… How much did you actually learn from that session?"

"Enough?" Libromancer shifts against you. "I learned that whatever resistance you have is artificial, at least."

You blink, a bit of a cold chill crawling down your spine. "Artificial?"

Gosh, you knew she was good, but this is hitting way too close to home right now. She obviously doesn't know that you're, well, you. Or else she'd have never let her guard down like this. But still, that's alarming!

She really is a genius!

"Yep. It'd be broader if it were some natural resistance like what Kaiju or monsters have. It'd have blocked everything out, not just specific types of magic. What you have only guards against… What, is it magic cast with malicious intent? Magic specifically tailored to harm? I don't know the exact rules that define the enchantment, but I absolutely know it's an enchantment now and not some genetic mutation," your love muses. "Unnatural magic's always arbitrary like that…"

"Arbitrary?" You ask. You're legitimately curious, but mostly you're just trying to get your love to open up to you some more. Magic seems to be the route that gets her to really talk.

"Spells like the ones Magical Girls cast are like… Programs run by a computer. They're tailored to do one specific task, and that's it. These spells can be repurposed, and you can cast multiple spells to produce more complex effects, and there are conditions behind these spells, but they always operate based on logic and rules. Wild magic, natural magic, is different. Less arbitrary, fewer rules."

Huh. That's good to know.

"I'd really like to talk to whoever placed that spellwork on you. Whoever it was really knew what they were doing; that's one of the most fiendishly complex enchantments I've seen in a while. It's ridiculously subtle too. I barely picked up on it until just now. The only reason I even know it's an enchantment is because I noticed it was too arbitrary." Libromancer sniffs now, taking in the scent of your pheromones. The lovely, corruptive smell that emanates off of your body. "Of course I'm also willing to bet that you've got some magical thing going on with your body because that smell is not natural. At all."

"Smell?"

"You smell too good," Libromancer replies flatly. "Succubus lineage, maybe? I know that there are the occasional demon half-breeds… Eh. I'll figure it out eventually…"

And like that, Libromancer rests her head against your shoulder, her eyes fluttering shut as she makes to nod off.

"W – Wait!" You blurt out, because there's one last thing you wanted to discuss.

Your love cracks her eye open, frowning heavily. "Yeah? What is it?"

"… Um. Did you…" You grope, trying to stay in character. "Did you get off too? Doing all those things to me?"

"… Go to sleep, test subject. What I felt or didn't feel isn't your concern," Libromancer harrumphs, affecting a bit of a stand-offish attitude.

"It's just… For a moment, you seemed like you were really into things too. So…"

"My primary passion is the acquisition of knowledge through experimentation," Libromancer grumbles. "… But yes. That did feel… Good. And I wouldn't mind doing it again. Now go to sleep, test subject. You need rest so I can experiment on you some more later."

Your love's interested in hanging out later~!

"… Okay!" You beam, closing your eyes as you pretend to fall asleep too. Pretend being the operative word.

Ah~! You can't stop thinking about your sadistic love! The way her eyelids are constantly drooping, the way she yawns ever so cutely, the lazy, sleepy tone to her voice~! And her frightening intelligence. Gosh, she almost saw right through you! If you hadn't taken the precautions you did…! How long will it take for her to figure you out? To piece together the puzzle you've made yourself out to be?

Ooh, you can't wait to play with her further. You can do so many things with your love now that she's had her way with your body! Now that your corruptive essence has well and truly seeped into her system.

Lay out some more breadcrumbs for your love to follow, perhaps? Lead her down the flowery path of darkness by presenting her with even more mysteries to uncover?

Or maybe you could unveil yourself to your love. Confront her directly. Forcibly drag her brilliant mind down the path of depravity. You were so tempted to before, you're honestly a bit tempted now. She's lying in bed next to you, sleeping. So helpless. So vulnerable. It'd be easy to ambush her, drag her off to your own private dungeon so you could show her some of the pleasure and pain she inflicted on you. Encourage her sadomasochistic tendencies, indulge yourself with her curvaceous body…

But no. No, now's not… Appropriate? You want the revelation of your true identity to be grand! A wedding present, from you to your love perhaps! Well, not the wedding. An engagement present? Something earlier in the relationship cycle? Eh, you'll figure it out.

You're Alice Takanashi, after all. Void Heart.

Corruption's your forte.

… Speaking of presents though, you'll have to get something for Kaina, aren't you? You've got a date coming up with her after this!

Ooh, you can't wait for that either~!