(NSFW Warning. Contains: Bimbo-tf, inanimate tf, demongirl tf)

What’s more traditionally heroic than rescuing a princess from an evil dark lord? Only saving said princess from a dragon really, and there was admittedly a bit of a shortage of those, so this would have to do.

The trio of adventurers had done well making it this far, infiltrating the Dark Kingdom with all the guile and secrecy they could muster in their efforts to save the princess and claim the hefty reward from her family. And also do good, that too. It had been surprisingly easy, actually - assorted orcs, goblins, kobolds, and other villainous species didn’t seem to see anything wrong with a few well armed humans entering. One of them grumbled about how they’d let just about anyone join the country these days, which was more than a little odd - did humans leave their homes to join often?

In any case, such was not theirs to investigate, only to take advantage of. The party of three - the knight Bella, the wizard Anthony, and the cleric Rosa - had made it to the Dark Lord’s castle and soon been discovered by the Dark Lord’s forces, and the infiltration had become a proper raid. They’d fought their way up level after level, defeating guards and confounding traps and all in all having a rough but profitable adventure when they finally reached the throne room. This was it - they’d defeat the Dark Lord, Karxon of the Dark Kingdom, who was reputed to be a powerful and of course evil warlock, and then find Princess Teresa and rescue her. Simple.

They barged into the next room, which was a long, grandiose hall lined in velvet and obsidian, a red carpet leading up to a pair of thrones. One of them - an old one, the gold tarnished by more age than any polishing could counteract - lay empty. The other, silver and shining new, was not.

The occupant was not the Dark Lord Karxon at all - at least not unless he’d gone and turned himself into a woman. Which, in fairness, was always possible when one had access to transformative magic. But not particularly likely for a role that wanted to be recognized. This was not him. The being lounging on the throne could most certainly not be mistaken for a man, between her voluptuous figure, her long pink hair, the slip of a black dress that hugged every curve and left little to the imagination. She was distinctly not human, with a long tail ending in a heart flicking outwards, horns curling out her hair, and eyes black as night with golden pupils. No, she wasn’t the Dark Lord that they were looking for. But the red-skinned woman practically radiated authority all the same - and oozed sexuality in equal measure.

“Well?” she said in a voice as smooth as silk, “Are you going to stand there staring all day, or pick your jaws up off the floor and tell me why you’re trespassing?”

The trio realized that they’d spent the last two minutes staring at the woman. Bella wiped a bit of drool from her lip, while Anthony hurriedly made some adjustments below the belt and Rosa turned even redder than she already had been. They stepped further into the throne room, the doors shutting behind them. “I, uh, uh,” Rosa started, her eyes having never left the demonic woman’s ample bosom.

“We are here,” Bella declared, “To rescue the Princess of Valdora, Princess Teresa!” She leveled her sword at the demoness. “Tell us where she is, and you might yet live.”

“Y-Y-Yeah,” Rosa echoed, “We have to save her from evil demons like y-you-”

The demoness blinked, surprise on her face transitioning into something unidentifiable. “...Pfft.” she brought a hand to her lips, her body shuddering. Was she about to unleash some kind of terrible spell- “Pft- Hahahahaha!” Nope, she was just trying and failing to hold in uproarious laughter. It was a distinctly less sensual sound than her voice had been before, but the way her body shook and in particular set her bust bouncing transfixed Rosa all the same, a little stream of blood now coming out her nose.

“What’s so funny?” Anthony asked, doing his level best not to look at her bouncing bust.

“Ooh my gods… oh my gods… hehehe…” the woman gasped for breath, and eventually settled down. “Gods, I thought we sent the bastard a letter explaining everything and he still sends out adventurers?… did the imp get hit on the way or did he just ignore it? I wouldn’t put it past him, he never did listen to anything I said. Probably just a publicity stunt, trying to squeeze whatever value he still can out of me even when I’m out of his reach.”

The party looked at each other, confused.

“Oh, right, you three.” The woman coughed. “I am the Dark Queen-”

“I thought the Dark Lord just had a consort?” Bella asked.

“He did, and I told him I’m nobody’s ‘consort’. Moving on, Dark Queen, a Royal Succubus-”

“How are you a Queen then? Succubi are just vapid bimbos!” Anthony said with his nose in the air.

“And wizards are scrawny snobs who won’t turn a book page without using a magic spell.” The Dark Queen shot back. “We all have stereotypes, and most of them aren’t all that accurate. Dark Queen, Royal Succubus, and…” she paused, looking at the Cleric. “No interruptions from you?”

“B-Boobs… I-I mean-”

“Thanks, darling.” she flashed Rosa a dazzling smile, before continuing. “Nobody else  got any comments? Good. I am the Dark Queen and Royal Succubus, Teresa Valdora.”

The party stared at her for a while. “...Excuse me?” Bella said.

“You heard me right. You got the right castle, but your Princess is a Queen. And she’s not very happy about how you’ve trespassed in her lands, ransacked her home, and attempted murder on several guards.”

“Some attempt, there was nothing but ashes-” Anthony grumbled before being interrupted.

“What, you think it’s that easy to take down demons? We teleported them out.” Teresa said.

“How do we know you’re telling the truth?” Bella demanded.

“I can tell, actually-” Rosa started. It was a reasonably common Cleric ability. “S-She is-”

The succubus raised an eyebrow. “To be honest? I don’t really care if you believe me or not. You’re not finding anyone else named Teresa here, and I’d not follow you back in any case.” she smirked. “Thanks, but no thanks, I prefer a relationship where I’ve actually got some say in how things go than being married off to some dumb prince to seal an alliance and pump out babies for the rest of my life.”

The party looked at each other. “...Well, evidently, she’s under the influence of this Karxon figure.” Anthony said.

“Of course.” Bella agreed.

“Actually no, I don’t sense any mental contamination.” Rosa said, a bit louder. “I-I don’t think she’s being held against her will, I’d be able to sense it.”

“If that’s the case, then she’s being duped.” anto

“It’s a pretty equal partnership so far, actually. He’s basically ‘master’ in name only… and he knows who’s really in charge when we get in bed~” Teresa added with a lurid grin.

“I-I don’t think this is a good idea, she seems really strong, and besides, we shouldn’t take her out of a loving relationship-” Rosa stammered.

“You can’t, and I really recommend you leave now. You’ll be punished for trespassing and attempted murder, but I’m magnanimous enough to give you a head start.” Teresa said casually, checking her nails as if her biggest problem of the day might be them getting a little long.

Anthony and Bella suddenly lunged forward, Rosa crying out for them to stop but far too late. Bella was swinging her mace, banking on a demon’s increased durability to lead to a knock out rather than any permanent damage. At the same time, Anthony channeled a weakening spell to be followed by a sleep spell. Demon or not, the party was going to get paid!

Or at least, that was the plan. Teresa’s hand flew out and grabbed the mace mid swing, stopping it dead without even seeming to notice the impact. She pulled on it, using Bella’s weight to help her to her feet quickly. Bella stumbled backwards, caught by a suddenly appearing block of darkness, and as Teresa turned to her, the succubus’ tail whipped out and slapped Anthony back with shocking force that disrupted his spell.

“We don’t use the death penalty, here.” she said simply, wrapping a hand around the Knight’s neck. “It’s cruel, and more importantly, it’s wasteful. You’ll do your time another way~”

Bella gasped as she felt the magic pump into her, paralyzing her. She couldn’t move, or even struggle. She was powerless in the Royal Succubus’ grasp.

To the outside world, it happened in seconds. To Bella and Teresa, it was agonizingly, or delightfully depending on one’s perspective, slow. Bella’s skin darkened, going from tan to the blackest obsidian color. Bella groaned, a far… grindier sound than it was supposed to be, as her armor strained against something inside of her and then seemed to pop off entirely. Her clothes underneath had shredded, but there didn’t seem to be anything to hide anyway - her whole body was the same uniform and glossy black.

The weirdest part of the change from Bella’s perspective was the feeling of… hollowing. She felt her organs, bones, every bit of her insides fade away and vanish. She was full of nothing but air and yet still somehow alive. Damned magic. But rather than deflate like an empty balloon, Bella’s body instead turned rigid and hard. She felt it as parts of herself… detached, changed. Her arms popped right off her shoulders, showing themselves to be empty as they fell apart at the joints. Her legs slid off her torso, just as hollow and in multiple pieces. The final bit to split off was her neck - it was intensely bizarre, having her head roll away.

The change wasn’t quite done; she could feel her body shift and crack as it segmented itself into dozens and dozens of plates, while her head seemed to sort of… collapse in on itself at the face, leaving her staring out from the back rather than the front of her head. She felt her long blonde hair bunch up at the back of her head into a ponytail as her body finally settled.

Where once was a knight was now a full suit of plate armor, complete with the full body and breastplate, gauntlets and vambraces for the arms, greaves and boots for the legs, and a helmet with a blonde plume. Bella was still in there, and she knew what had happened. But somehow, she was finding it hard to worry about it. Not because she was fading or anything, but because she had a far greater concern: the hollow, empty feeling of not being worn. The prideful Knight wanted nothing more than to be worn, to protect it’s wearer and help them dominate a battlefield - but honestly, just being worn to show off would work too.

Teresa hummed to herself and waved her finger - the black plate armor, an intimidating set to be sure, lifted itself from the ground and was flung towards a nearby armor stand, where it settled for display until it was time to be used. Then, she turned to the Wizard, still lying on the ground where he’d fallen when he’d been slapped by the tail.

He was… in a state. Where the tail had slapped him, on the cheek, was a bright red heart-shaped mark. And he was busy writhing and groaning, as he made a mess of his trousers from the pleasure wracking his body. “What were you expecting in my attacks? I’m a succubus.” Teresa said simply. “Aw, you’re so cute~” she sing-songed, straddling his chest. “Let’s get you into a far, far more suitable form for your future, hmmm~?”

Her tail scythed out and cut the trousers right off his body without making contact with skin. She’d had quite a bit of practice when she was horny and in a hurry. The manhood sprung to attention, already leaking from the tip, and was swiftly wrapped in the very tail that had triggered his present state.

Anthony moaned loudly at the contact, a few spurts of white shooting out instantly. He felt so good. He felt so good he couldn’t focus - but that didn’t matter, right? He was a wizard, he had natural magic resistance, she couldn’t do anything to him and - Teresa leaned in and kissed him on the lips, forcing her magic right past that resistance in a way most natural to her species.

Nearly instantly, all resistance crumbled. He simply moaned and bucked against her, while she held him down and made out with him while her tail jerked his member. The magic soon took effect. His already scrawny body didn’t need to do much slimming - a bit less well defined shoulders, a softer face, facial hair fading. His curves, on the other hand, certainly needed deepening - which was accomplished rapidly as his waist pinched in and his hips flared out. His hair grew out, long and luxurious and taking a vibrant red as it splayed out behind him.

That whole process was incredibly arousing to the Wizard - but nothing compared to the feeling of the breasts ballooning on his chest. The sensitive buds soon became equally sensitive melonds, squishing against Teresa’s ample chest in ways entirely new to the soon to be former man. He came even harder - and the magic ensured that as he came, his cock shrunk and pulled inwards. Teresa’s tail followed it the whole way, right up until it vanished inside his body to be replaced by a vagina, and Anthony’s reproductive system rearranged itself.

Teresa, of course, wanted to be the first to break in her new pet, her tail plunging inside the newly formed cunt. The pleasure broke what was left of Anthony’s mind, letting Teresa reform and reshape it. Magical knowledge and intelligence dripped and oozed from her drenched pussy, leaving her head empty of anything she wouldn’t need anymore - which was most things. Soon, Teresa’s tail pumped new skills and thoughts into her - cleaning, cooking, serving her beloved Mistress and Master. And most importantly, skills of a carnal nature and an utterly insatiable appetite for it.

Teresa broke the kiss, drool connecting her to the woman’s lips for a few moments before she licked her lips. Her tail continued to work Teresa’s new bimbo maid over, while she turned to Rosa. The Cleric shrunk back… but she didn’t seem able to decide if she was afraid, or aroused.

“Mmmh. You need to be punished too… you committed the same crimes as them...” Teresa said, “But, you did try to respect my wishes when I made them clear… I give you a choice, then. You can serve a temporary term as something innocuous. Maybe an imp maid - not like… I’ll call her Annie now. Just cleaning. Or maybe you’d prefer to be a modest dress, the sort I’d use when I want to be when travelling the kingdom in disguise. Just for a year or two. Or...”

Rosa gulped. “O-Or…?”

“You can join us permanently. I like you, I think. A little bit of soul-changing magic, and you could be a very good demon General. Since my hubby took the throne, we’ve been on a defensive war only policy - you wouldn’t have to go and pillage your former home, just defend your new one. You get all those freedoms that your kingdom and your temple denied to you.”

Rosa blinked. That had been… well she’d expected to end up a permanent inanimate object like Bella, or a mindless toy like Anthony (although admittedly, Annie did seem to be enjoying herself…). But that offer…

Temple doctrine, like most of it’s sort, heavily discouraged any kind of lurid acts among it’s clergy. The problem had always been… well, Rosa was not really all that into that life. She wanted to love and be loved, and had always been interested in exploring that part of the body. And… well, in the trip through the Dark Kingdom she’d honestly seen mostly normal people, looking a bit dark and evil but not acting it. So, why not?

“I… uh…” Rosa took a deep breath. “C-C-Can I… uh… have sex? Is that allowed for your generals?”

“It’s expected and encouraged.” Teresa said cheerfully.

Rosa blushed. “...C-Can I, uh…” Gods she couldn’t just say she wanted a cute boy and girl harem could she?

“Incubi and Succubi will be lining up for it.” Teresa said, as if reading her mind.

“I-I-uh… ok… I’ll do it!” she said.

With a wet pop, Teresa pulled her tail out of Annie and waltzed over to Rosa. She offered her hand. “For you, I think I’ll be a bit more… formal, and respectful. I could stick my tail in you, but well, that seems less than appropriate for someone of your new rank, hm?

Rosa took it, and felt the tingle of the power. Unlike with the previous two, the magical power asked to enter her, rather than forcing its way in. And Rosa, after only a moment’s hesitation, accepted it.

The first and most obvious change was height. She went from being a head shorter than Teresa to being half a head higher. Her slender frame rippled as muscles grew and slid into place, an impressive set that would leave no doubt of her strength but not so massive as to be a parody. Her skin, pale from spending all her time indoors, started to shift in tone, darkening to a deep crimson - although this was more noticeable on her body than her face considering the intense blush. Her figure shifted and changed - she had once been flat as a board, but her breasts bulged out to become respectable C-cups. She became distinctly glad she’d worn loose robes, but even they were being stretched to their limit.

Her long, blonde, and straight hair shifted in tone, the roots blackening and the rest swiftly following suite. This was mirrored in her eyes, which took on the distinctly demonic mix of black sclerae and yellow irises. She groaned a bit as a new, winding black tail pushed it’s way out of her buttocks and curling horns grew out on her head.

“I-Is that it…?” Rosa said, her voice coming out stronger than it had been despite her hesitation. Teresa held up three fingers, and counted them down. And then, came the internal stuff. As promised, there weren’t any direct mental changes… but her soul had become that of a succubus. Besides the internal warmth of hellfire, and the dramatically improved resolve and confidence… she had a burning need to fuck someone. She began panting, tongue lolling out of her mouth.

“Oooh, you look so nice like that… but I think I shouldn’t get you used to taking me, hm?” Teresa said, watching Rosa begin to violently tear off the remains of her robes. She stepped aside, letting Rosa see the now-naked form of Annie, dripping with arousal and need. “Feel free to break in our newest slut~ When you’re done, put your armor on and come on out to meet Karxon. He’ll be wanting to see you.”

Teresa patted Rosa on the shoulder and sashayed her way out of the room, leaving moans and shrieks of intercourse behind her. That had, all in all, been a fun side venture - a new, loyal demon subordinate, a new fucktoy for when Karxon was tapped out or busy, and a nice set of armor. A nice profit considering they’d only managed minor wounds on the demons coming in - her friends were so good at acting as if they were defeated.

She was a little troubled that her brother had either ignored the letter or read it and ignored her wishes. The Dark Kingdom might be a peaceful state now, but well, if Valdora had sent people to kidnap the Queen, it was only fair that the Dark Kingdom try to kidnap their King - oh, if it wouldn’t be fun to put him in his place!