A Magical Girl's Milk
"Hehe, does it taste good?"
The way she kept feeding me mana while letting me suck on her finger, looking at me so affectionately, stirred something almost maternal in me — like a mother nursing her child.
Thanks to the mana she'd been supplying for several dozen minutes, my body had already swollen to about one and a half times its original size. With the heartbeat thrumming through me from all that mana, I could feel myself beginning to produce a faint trickle of power on my own.
At the same time, what had been nothing more than thermal vision gradually sharpened until I could make out color and contrast, and then—
—ba-aang — bwaaaaang — bwaaangaahwaaaang!!!
I spent a long, happy stretch of time with both my eyes and my mouth thoroughly entertained, reflecting in more ways than one on just how beautiful high-definition vision had been back when I was human.
I'd already fallen from humanity into a corrupted tentacle, and the vulgar onomatopoeia that wanted to burst out of me on its own was enough to suggest I was about to drop even lower into pure beast. Because she was stacked. Absolutely stacked. A beauty I never would have dared approach as a human. And from the outfit, there was no question — she was the Magical Girl I'd only ever dreamed about!!
True to the Magical Girl look, her whole costume was trimmed in frills, though the high-leg cut and the orange sailor top left it genuinely unclear whether she was supposed to be a Magical Girl or a prostitute. Still, for an erotic-game Magical Girl, it was practically wholesome.
That bright, innocent face and the brown bob cut gave her the vibe of those athletic-type pretty girls who show up all the time in anime — but her behavior, treating a tentacle like a pet she intended to raise, was pure dark-and-busty-girl energy. The gap moe hit hard.
And the fact that I was obscenely sucking on that Magical Girl's finger made my tentacle body want to arch with pure delight as I drank in her mana even more greedily. A finger alone was never going to be enough for me!
Not yet… not yet…
Feeling the mana she fed me settle into storage inside my body, plus the mana I was starting to generate myself, I was hit with a rush of omnipotence — right now I could probably fold that pigeon I'd sweat bullets over earlier clean in half. But I had zero intention of settling for mere finger-sucking on a Magical Girl just because of some pigeon.
Both the instincts of the tentacle body I now inhabited and the soul that had once been human were screaming the same thing. Drive into the Magical Girl's womb right in front of you. Illegally renovate and expand that woman's baby room into your personal chamber!
I wanted to. But if I acted on pure instinct, the overwhelming mana radiating from her womb would turn me into tentacle juice on the spot, and my entire tentacle life would end as nothing more than a slight uptick in the Magical Girl's magical secretions. That outcome wasn't hard to predict.
Besides, even a Magical Girl who was willingly supplying me with mana would probably freak out and reclassify me from pet tentacle to extermination target the second I tried to jam myself into her pussy without warning. So I restrained myself.
—chuu-wap, chuu-wap
I still had no idea why a Magical Girl would want to raise a monster she was supposed to defeat, even going so far as to feed it mana — but since things had turned out this way, living as a companion tentacle had to be tens of thousands of times better than scraping by in the wild, right?
—chuurp
Right in the middle of my focused mana absorption, I heard her smack her lips. I carefully looked up — and her gaze was nothing like affection. It was the look of a hunter sizing up prey.
Huk!
The contrast with her earlier sunny, carefree expression was so sharp that I suddenly wondered whether she was taking me home as a lab specimen rather than a pet. I froze mid-suck without meaning to.
"Hmm? Full already?"
When I stopped moving and went rigid, she just looked puzzled. That sharp expression from a moment ago might as well have been a hallucination I'd imagined.

—pyureung♥ pyureung♥ boiiing♥
Whoa — tits!
"Hehe… you really are a tentacle. Show a little bare skin and you get all motivated~♥ Even if you're full, you can still eat a little more, right?"
She bared her breasts and smiled with a seductive, thoroughly satisfied look. Looking at her now, I realized that predatory gaze hadn't been about eating me as food — it had been about devouring me in a sexual sense…!
Kkh. A Magical Girl who was supposed to uphold justice turning out to be this lewd of a woman! I loved it so much!
Chuk♥
"Ah♥ I never even gave you permission… and you're already sucking on my nipple. What a naughty boy♥"
Despite her words, she wore a thoroughly pleased smile, cupping my body with her hand so I could nurse more easily, then stroking me all over as if praising me for a job well done. A glance at her face showed she already looked ready to melt, so I sucked her nipple even more eagerly, jjok-jjok.
—jjuwaaaaaap!!
"Heut!"
I sucked her breast with more force than I'd ever squeezed out of myself during that life-or-death duel with the damn cat. I was nursing so hard it felt like milk that shouldn't even exist was about to come out — and whether my wish to drink breast milk actually got an answer or not, the mana inside me gathered and began reshaping my body.
I remembered how, in the original game, tentacles used needles when injecting aphrodisiacs or remodeling a body, and I felt genuine emotion at taking that first step of evolution toward becoming more like my seniors.
Mana concentrated in the faint little tongue that had already been there, hardening and thinning until it took on the shape of a syringe needle. The classic needle-tipped tentacle that shows up in every tentacle genre without fail, injecting special drugs! Not only was I experiencing it firsthand with my own body, but my test subject was a Magical Girl — my soul, which had transmigrated into a tentacle, felt ready to achieve enlightenment and leave behind nothing but pure lust.
I instinctively understood that this stinger could inject a drug mixed with my mana into her mammary glands and force her mana to condense and secrete as liquid for me to absorb. Without a second thought, I drove the needle into her nipple.
"Ah?! That stings!"
She flinched at the sudden pain. Even so, she made no move to pull me off — just startled, nothing more. Then, as if something had clicked, she muttered under her breath while looking down at me.
"D-don't tell me… you've already got a Mana-Inducing Agent…?"
While she was still flustered, my mana finished injecting. The moment I withdrew the needle, condensed mana began seeping from her nipple one drop at a time in liquid form. A mosquito leaves an itch as payment for the blood it steals — but I was a professional tentacle, so instead of an itch, I gifted my host with pleasure.
Once the injection was done, my tongue naturally reverted, flicking and teasing her nipple as if telling me to savor the taste of the milk and coax it out faster.
"Heut… m-my chest feels hot… hah… heung♥"
One drop, two drops, drop after drop — the mana-laced breast milk that had been trickling out in tiny amounts steadily increased until it was flowing faster than I could swallow it all.
Ahh, mimi!! That rich, thick flavor. This Magical Girl wasn't a Magical Girl at all — she was a Magical Cowgirl.
I'd suspected as much from the moment I saw her walking around with breasts bigger than her head. Creamier than regular milk, with a subtle sweetness, and above all — the mana! I didn't know if mana tasted different from person to person, but this woman's mana was exquisite, bright and clear like a perfect sunny day.
—gulp gulp gulp
"Heat, heuuuuk!! Haaang!"
—pshuut pshushushuut♥
A merciless climax-pressure water cutter sprayed across my body hard enough that I nearly got blasted off — but I clung to her nipple like a barnacle and kept enjoying her breasts without interruption.
But every good thing has an end. Whether the drug's effect got discharged along with her orgasm or not, the milk stopped flowing.
I would have loved to give the other breast a shot as well, but when I tried to spend mana to form the needle again, my tongue trembled like my legs the day after wrecking myself at the gym — no strength, no transformation.
What a tragedy. I was so pathetic I only got to taste milk from one breast…! With tits this size, she could have pressed both nipples together and I could have sucked both at once — the fact that I couldn't was just heartbreaking.
"Heut♥ haaat♥ I-is it over?"
The delicate Magical Girl asked, still faintly trembling in the afterglow of her climax.
Kukuku. A little early to relax, don't you think?
Playing out a private little villain-violates-Magical-Girl scenario in my head, I casually shifted my attention to the other breast.
Unlike the left nipple, which was lewdly swollen and puffy from all my devoted sucking and the milk that had come out, the right one had only stiffened a little from the pleasure and was standing there all alone, erect and unsatisfied.
—chuk
"Heut♥ N-not enough yet~ Hehe… go on, drink as much of my mana as you want♥"
Permission granted, I went to town on her nipple the same way as before — but compared to earlier, it definitely felt a little bland.
Here I was, a guy who'd been a virgin until yesterday, nursing on a Magical Girl this gorgeous and still finding something to complain about. Yesterday-me probably would have punched me in the gut for being too full of myself.
If the tongue's out of commission… what about some other part…?
Using mana itself wasn't a problem, so to soothe my disappointment I formed little bumpy nubs inside my mouth. On top of that, I adjusted my mucus so a trace amount of aphrodisiac would come out — not for injection, just enough to slightly heighten the sensitivity of her nipple.
"Eut…? I-it tickles… heut?! No… it's h-hot…♥ Th-this is aphrodisiac… heung eut♥"
—odok odok
"Ah♥ heaaat!!"
When I chewed on the aphrodisiac-smeared nipple with my nubbed mouth, she climaxed all over again in a spectacular fountain.
My turn still wasn't over…!
Since I hadn't made any major body changes this time, it felt like I could squeeze out one more round of aphrodisiac-laced fluid. I didn't waste the chance — I carefully spread mucus over her left nipple as well.
"Heet… d-don't tell me…♥"
Whether it was the aphrodisiac or she was just naturally sensitive, the Magical Girl — still lost in the aftershocks of repeated climaxes — seemed to figure out exactly why I was coating the other breast too.
Kkheut, they're filthy huge…!
With no hands or feet, gathering both breasts so I could suck both nipples at once meant using my entire body. I coiled around her chest like a wrap, pressing her breasts together, then took both plump nipples into my mouth and sucked with every bit of lung capacity I had.
—jjuuuuuuup!!!
"O-ook?!"
The stimulation must have been intense — the Magical Girl let out a vulgar moan. Then, wanting to give her even more, I uncoiled. Her breasts were so absurdly elastic that those massive tits tried to spring back to their original positions, fighting to escape my vacuum-cleaner-level nipple suction in what felt like a genuine contest.
Between the vacuum pressure, the nubs still inside my mouth, and the heightened sensitivity from the aphrodisiac, she couldn't keep her head straight and climaxed over and over.
"Heuk♥ heeeek?! M-my nipples are gonna come off… eukkeut♥"
—jjuueeeubub— pop♥
With a bright little sound like a champagne cork, her breasts popped free of my mouth. The way they bounced and jiggled as they flew back, I half expected a sniper rifle's bullet could weave cleanly between them without a problem.
After climaxing so many times in such a short span, the Magical Girl was nearly exhausted, breathing hard. I gave her a moment to rest — then looked down at the floor, soaked past damp into outright sticky with the puddle of love juices from all those squirting orgasms, and considered my options.
Hmm. A little tart, a little sweet… perfect for a dessert finish.
Wait, fuck — "considering" somehow turned into me just diving face-first and sucking it up.
—ererelel lerelerel
"W-why are you licking that?!"
The worn-out woman had been staring blankly. The second I started frantically lapping at the puddle of love juices, she freaked out, snatched my body up, and cut off any further licking. Tyranny!! Give me an all-you-can-eat love-juice pass right now!!!
—wriggle wriggle wriggle wriggle wriggle wriggle wriggle wriggle wriggle wriggle wriggle wriggle wriggle!!!!!!!!!!!!!!!!!!
I thrashed!! Harder and more violently than when I'd driven off that pigeon! I! Re! Sist! Aaaah!!
"Aaaah!! Honestly…! F-fine, I'm already soaked anyway. Th-the stuff on the floor is dirty, so… I'll let you have the rest once we get home♥"
At the promise of getting to see her pussy, I stopped resisting and settled down. I was a good, well-behaved tentacle, after all!