(Man to Female Succubus)

"Gold powder for the sin of pride..."

With a flourish, I threw my bag of gold dust onto the floor, briefly watching it sparkle midair before moving on to the next step.

"A broken mirror's shard for the sin of envy..."

A soft tinkle resonated throughout the dark room as I dropped the razor-sharp piece of glass into the summoning circle.

"Decaying teeth for the sin of sloth..."

Various rotting animals' teeth clattered to the ground, scattering around the outer border of the circle as they came to rest in a perfect ring.

"Blood of an enemy for the sin of wrath..."

Dark red blood dripped onto the floor, glistening sinisterly as it flowed into intricate demonic sigils within the summoning circle.

"Ill-gotten wealth for the sin of greed..."

I carefully laid my stolen gems into the necessary spots within the circle, shivering as the otherworldy hum in the room grew to a fever pitch.

"Pig's fat for the sin of gluttony..."

Lard splattered onto the circle, staining all of the previous components in rancid fat. I held my breath as the circle pulsed once, then twice, before absorbing the puddle of lard into itself, leaving no trace of it behind.

"The product of passion for the sin of lust..."

I approached the glowing circle with a vial of semen, delicately smearing it in a pentagram in the center. I quickly yanked my hand out of the circle, breathing a sigh of relief as a shadowy figure began to emerge.

I waited with bated breath as the shadows darkened and took on an oily sheen, coalescing slowly into a vaguely humanoid shape. The hazy mass danced and flickered in the candlelight as it drew more shadows into itself, growing larger.

Out of the writhing mass of shadow, plump breasts swelled into existence, topped with thick, luscious nipples that practically begged to be fondled. Those perfect breasts were soon joined by an equally perfect ass, deliciously round and soft. It jiggled slightly as a spaded tail wriggled its way out of the half-formed backside of the shadowy figure.

The shadows began to lighten, turning dark grey as it formed slender arms and shapely thighs that ended in goat hooves. As the texture of the shadows solidified, becoming skin-like, a bulbous protrusion grew from the tip, quickly molding itself into a head. Fiery red eyes blazed forth, complemented by a crown of horns. Fangs gleamed as the demoness grinned, licking her lips with her elongated, snake-like tongue. She let out a soft sigh as she finished forming, her eyes flaring with light as she stared at me.

"My oh my~ Aren't you too young to be playing around with black magicks? You look so juicy... I could just gobble you up!"

I flinched as the demoness lunged at me, only to be stopped by the confines of the summoning circle. She snarled, baring her fangs before slinking back to the center, cackling.

"Scared of me, boy? Maybe it's best that you run back to Mommy and Daddy, hmm? Little shits like you shouldn't be trying to summon demons~"

I gritted my teeth as the demoness taunted me, doing my best to ignore her insults as I worked on the next step of the ritual. I'd make her pay for her insolence later, once she was under my control. But for now... I'd just have to endure.

"Fufufufu. Say something. I'm getting bored~"

The demoness' eyes glowed as she kicked the protective barrier of the summoning circle with her hooves, sending a cacophonous creaking noise through the room. I glared at the demoness as I mentally recited the incantations, trying my best to hide my nervousness at her continued aggression.

"Silence, beast. Enjoy your last moments of freedom while you can."

The demoness just grinned as I started to chant, lazily reclining against the barrier as her eyes twinkled with an unnerving amusement. As I drew near the end of the incantation, I felt a rush of vindicative pleasure flow through me. It wouldn't be long until I could make her pay for insulting me.

One by one, the candles blew themselves out, plunging the room into inky darkness. Dead silence crept into the room as darkness began to swim and blur before my eyes, forcing me to fall to my knees from the dizzying sensation. As I struggled to get back on my feet, the air in the room grew unbearably warm and stale, and a chilling sense of dread washed over me as the candles suddenly flared back to life.

Trembling, I lifted my head, my heart beating frantically as I saw the demoness ripping her way through the barrier. Despite the situation, I couldn't help but admire the demoness' beauty. The way her muscles rippled just below her skin as her nails dug into the barrier... her breasts swinging along with her frenzied mauls...

I shook my head, cursing inwardly as I cleared my thoughts of her demonic influence. With a grunt, I lunged for my fallen spellbook, but just as I opened it, the barrier shattered, releasing a shockwave of energy that sent me tumbling across the room.

A stabbing pain flared in my chest as I tried to pick myself up, and I let out a series of wet coughs, spraying blood across my hand. Panting heavily, I dragged myself across the floor, desperately scrambling for my spellbook. As soon as I tried moving, however, the demoness was on me in an instant, firmly wrapping her hands around my throat and lifting me off the floor.

"Slow down, little boy~ We've got some unfinished business, you and I. Fufufufufu..."

"FUCK YOU! LET! ME! GO! YOU FUCKING- cough"

The demoness tightened her grip around my neck, and I gagged as I struggled to take a breath. Her hand smoldered as it squeezed my neck, and I could smell the soft sizzling of burning flesh as the demoness' hand grew painfully hot. I gasped for air, weakly grabbing at my neck as the combined pain of being choked and burned melded together into a hellish symphony of sensations.

"It's adorable that you're still fighting back, little girl. There's something to be said for mindless obedience, of course, but, mmm, a little fire is nice, no?"

The demoness jeered at me as she released me, and I tumbled to the floor, clutching my throat as the burning sensation turned into a fizzy numbness.

"I'm not a-"

My voice! It was... higher, smoother... just like a woman's voice. I quickly ran my hand over my throat, inhaling sharply as I noticed that my Adam's apple had vanished.

"You- You BITCH! W-What did you do to me?"

My eyes widened in shock as my feminine voice echoed through the room, tears welling up in my eyes as the demoness jeered at me. I whimpered as the demoness leaned down, her fingers brushing against my skin as she laughed softly and lifted my head towards hers.

"Fufufufu. Just the start of a makeover to make you perfect."

"I... p-please... don't do t-this! I'm sorry for summoning you! Please, s-stop!"

"A little too late to be regretting your decisions, isn't it? Besides, weren't you planning on making me your servant, little girl?"

"I-I-"

Before I could think of an excuse, the demoness leaned in, her soft lips pressing against mine as she kissed me. I tried to resist at first, but her tongue easily pushed its way into my mouth, parting my pursed lips. My eyes fluttered as her skilled tongue worked its way around my mouth, filling it with the same fizzy tingling from earlier.

The strange sensation spread across my body as the demoness ran her hands along my skin. I let out a needy moan as she broke the kiss, and I fell to my knees, limply leaning forward as I drooled, my mind working overtime to process what was happening.

I shuddered as my body slimmed down, the muscles in my arms and legs dwindling as they became slender and graceful. As my muscles disappeared, my hair grew longer, tickling my neck as it grew down to my shoulder blades.

My lips swelled, becoming firm and pouty as the bones in my face shifted, popping as they rearranged themselves. I felt the rest of my body following suit, bones and fat moving around, pushing my body further away from its original shape.

I gasped as fat flowed to my chest and thighs, and I let out a guilty moan of delight as I felt the fat in my chest form into large jiggling tits. My thighs swelled and thickened, becoming smooth and shapely as the tingling sensation gathered around my crotch.

An unbearable pressure built up in my balls, and I hurriedly moved my slender, feminine hands down to my cock, feeling it harden between my delicate palms as I gripped it with both hands. I feverishly pumped my hands up and down, trembling as I masturbated.

My delicate hands were nothing like what I was used to, and the change in stimulation quickly sent me over the edge. My cock throbbed momentarily before shooting fat ropes of cum all over my hands. With every spurt, it shrank smaller and smaller, retreating into my body as a puffy slit took its place.

As I stared down at my cum-covered body, I felt my stomach grow hot, filling me with a strange ache. I shakily got to my feet, trying to ignore the feeling in my stomach as I stared at the demoness, trembling with fear as I attempted to put on a brave face.

"H-Happy now? You've punished me enough, j-just go!"

I winced as the demoness chuckled, gulping as an evil smile crossed her face. Her smile grew wider as she pressed her body against mine, and I trembled in anticipation as a hot rush of excitement flowed through me. She whispered in my ear, her hypnotic voice making my head swim with that same fizziness that accompanied my previous transformations.

"Punishment? Mmm, you're quite the ungrateful bastard. Let's get rid of those nasty thoughts, yes?"

"W-Wait, please~"

My voice warbled off into a whimpering moan as I began to transform again. A sinking sensation of dread filled me as my skin reddened, and I frantically flailed my limbs, trying to escape the demoness' grasp.

"No, no, no! D-Don't do this!"

I wailed as horns sprouted from my forehead and my skin turned cherry red. As I struggled, I felt a tail growing out of my back, followed by bat-like wings. The more I struggled, the faster my transformation progressed, my teeth sharpening into fangs and my tongue stretching and flopping out of my mouth.

As I stared in disbelief at my demonic body, the demoness hugged me, and I whimpered, afraid that my body would be modified again. However, her embrace was soft and warm, and I felt myself unconsciously sinking into her chest, nuzzling against her boobs.

"Fufufufu. You turned out rather well, succubus."

The demoness' voice washed over me, comforting me and filling my mind with a blissful fog. I let out a tiny murmur of agreement, sighing contently as she ran her fingers through my hair.

"Mmm, good succubus. Let's get you something to eat, shall we?"

That was all I needed to drop to my knees, panting excitedly as I pressed my mouth against my Mistress' warm, slick pussy. My eyes rolled up into my head as I inhaled her intoxicating scent, drooling from both sides as I extended my tongue and gave my Mistress' pussy a gentle lick.

I jerked forward as the first drop of sweet nectar flowed into my mouth, sending fiery waves of pleasure through my body. That alone was enough to make me orgasm, and my pussy gushed as I slumped forward, making feeble attempts to lift my head and have another taste.

"Aaaaaaaahhh~ m-m-more... So good... s-so good..."

I wrapped my arms around my Mistress' legs as I plunged my head back between her legs, trembling as I greedily ate her out. My entire body shook as I licked and sucked, probing the warm, tight insides of my Mistress, savoring the way her pussy clenched around my tongue.

But I only managed to last a few more seconds before the relentless assault of pleasure made me collapse on the floor, limply twitching as orgasm after orgasm rocked my body. My chest heaved and my tail trembled as I came over and over again.

I weakly smiled at my Mistress as she gazed down at me, a triumphant smile on her face as she lifted me into her arms. I tried to thank her, my voice coming out in a pathetic wheeze, and she chuckled as she shushed me.

"Still hungry? Don't worry, you'll get plenty more. After all, we have an eternity ahead of us~"