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The Radio Demon’s Angel

Summary:

After the battle with Adam, the Hazbin Hotel lies quiet with only Alastor and Vaggie inside. When Vaggie demands he cancel his deal with Charlie, Alastor instead tempts her into making one of her own—playing on her devotion to Charlie. What begins as a desperate attempt to protect her girlfriend quickly spirals into a sinister pact, binding Vaggie to obey the Radio Demon’s every whim, leaving her trapped in his dark, lustful game.

Notes:

There's not a lot of Alastor x Vaggie stories so I thought of adding mine.

Enjoy =)

(See the end of the work for more notes.)

Chapter 1: Bound to the Broadcast

Chapter Text

The hotel felt unnaturally quiet without Charlie, Lucifer, Cherri, Frank, Angel, Husk, and Niffty bustling about. Only Vaggie and Alastor remained, the silence stretching out between them like a taut string.

Vaggie’s one good eye was narrowed into a glare sharp enough to cut glass. She’d just finished scolding him, her voice still echoing in the halls. “I am sick of you hovering around Charlie like some parasite. She’s not your little pet project—she’s a person, and she’s my girlfriend!”

 

 

Alastor, of course, only smiled. His grin was wide, teeth gleaming, eyes burning with that crimson mirth that never dimmed. He tapped his damaged cane lightly against the floor, a rhythm of mock applause.

“My, my, such fire! Such passion!” he crooned, voice lilting like a radio broadcast lost between frequencies. “Every time you raise that voice at me, it makes my day all the brighter! How fortunate I am that you don’t fear me like the others. What a fascinating creature you are, my dear Vaggie.”

Vaggie stiffened, her grip tightening around her spear. Even though it wasn’t raised, he could see her knuckles whiten. “Don’t call me that. And quit with the act. I see right through you, Alastor. You’re not fascinated—you’re scheming.”

Alastor’s grin never faltered, but his shadow shifted along the walls, curling and bending in playful arcs. One of them leaned close to her, almost brushing her shoulder before melting away. “Scheming, perhaps. Fascinated? Absolutely.”

Vaggie stepped forward, her wings twitching with tension. “Why me? You could toy with anyone in Hell. Why waste your time with me?”

For once, Alastor paused. Not in speech—he never lacked words—but in tone. His smile softened by the smallest fraction, though his voice carried the same jovial rhythm.

“Because, my dear, you are the first to meet me with steel instead of shivers. The first to look the Radio Demon in the eyes and not flinch. I find that… utterly irresistible.”

Vaggie blinked, caught off guard. The word landed heavy, unsettling her more than his shadows ever did. She scoffed, breaking the moment before it could settle.

“You’re insane,” she said, though her voice was quieter now, less bark and more bite.

“Undoubtedly!” he chuckled, the sound rattling the chandeliers above them. “But isn’t it delightful? You, standing there, ever so vigilant… guarding Charlie from the big, bad wolf. It’s charming, really. A doll with a sword, both tender and fierce.”

Vaggie’s face flushed—not from flattery but from fury. “If you ever lay a hand on her, I’ll—”

 

 

Alastor leaned forward, shadows curling at his feet like smoke. His grin widened, sharp and hungry, though his words remained sweet as syrup.

“Oh, don’t mistake me, dear. My interest isn’t in her. It’s in you.”

The silence that followed was suffocating.

For the first time in a long while, Vaggie found herself without a retort. She tightened her grip on her spear, glaring hard enough to burn a hole through him, but that gnawing unease settled deep in her chest.

Alastor, of course, just laughed. The sound echoed through the empty halls of the Hazbin Hotel, unnervingly bright, like a carnival tune played over broken speakers.

After a minute of taking in what he said, she cleared her head. The lobby once echoed with Vaggie’s voice, sharp as the point of her spear that's pointed his face.

“Cancel it! Cancel the deal you made with Charlie!”

She stood firm, wings tense, her glare burning hotter than Hellfire itself.

Alastor only chuckled, the sound tinny, like an old gramophone sputtering to life. He tapped his cane against the marble floor, shadows slithering lazily along the walls.

“My, my, such a demanding little guardian! But I’m afraid contracts are not so easily undone, my dear. Why, that would be bad business!”

Vaggie stomped a step closer, unflinching. “You think I care about your business? You’re using her. You’ll tear her apart if you keep this up! She doesn’t deserve to be shackled to you!”

Alastor tilted his head, grin unwavering, eyes gleaming like blood-red static. “Oh, but she offered, and I accepted. Isn’t it beautiful? A partnership sealed with trust.”

“Trust?” Vaggie spat the word like venom. “There’s no trust with you. Only games.”

For just a flicker, Alastor’s grin shifted — not smaller, but tighter, like a string pulled taut. His voice dipped, smooth yet pointed:

“And yet, despite your loathing, here you stand… bargaining with the very monster you despise. Curious, isn’t it?”

Vaggie’s hand clenched around her spear. She was trembling now, not with fear, but with fury. “I don’t bargain with monsters. I fight them.”

The air between them crackled, silence pressing heavy as his shadows curled closer. Then, Alastor laughed — rich, booming, and hollow.

“Oh, how utterly delightful! You never fail to amuse me, Vaggie. Always so fiery. So sincere.” His grin widened, impossibly sharp. “But cancel the contract? No, no, no. That would spoil all the fun.”

Vaggie’s spear snapped up in her grip, the tip glinting faintly in the dim lobby light. She stepped forward, her wings flaring wide in warning.

“You think I’m bluffing? I’ve fought angels and lived. Don’t tempt me, Alastor—I’ll fight you right here, right now, if it means protecting Charlie.”

The grin never left his face, but the shadows froze, as though waiting for his cue. For the first time in their exchange, Alastor didn’t immediately reply. Instead, he went still. His eyes lingered on her—first her stance, firm and unwavering, then the fire in her glare, and finally, against his better judgment, the undeniable allure of her form, taut with fury and resolve.

A slow, thoughtful hum rolled from his throat, breaking the silence like a needle hitting vinyl. He tapped his cane once against the floor.

“My, my…” he mused, his smile curving into something more contemplative. “Would you truly… do anything for her?”

The question hung heavy, an odd blend of curiosity and something far darker.

Vaggie’s jaw tightened, her single eye narrowing into a murderous glare. “More than anything.

Alastor’s grin widened again, stretching into something both amused and hungry. His shadows began to writhe slowly up the walls, curling around the chandeliers like vines.

“Well then…” he drawled, voice dripping with intrigue, “I do believe I’ve just thought of the most marvelous idea.”

Alastor’s cane clicked against the marble as he leaned ever so slightly closer, his grin casting more shadow than light.

“Aha, splendid! Then perhaps a bargain within a bargain, hmm?” His voice sang like a jingle, sharp and sweet all at once. “If you’d truly do anything for dear Charlie, why not… make a little arrangement with me?”

Vaggie’s grip on her spear didn’t falter, though her heart pounded like a drum. “You’re out of your mind if you think I’m making a deal with you.”

“Oh, come now,” Alastor crooned, his shadows coiling around the banister like a living audience. “I’m not asking for your soul… not yet, at least.” His eyes flared with static, crimson and wild. “What I am asking for is… loyalty. A taste of it. A little tether from you, as proof of your devotion to her.”

Vaggie snarled. “You’re insane. My loyalty isn’t yours to play with.”

“Ah, but isn’t it deliciously poetic?” Alastor spread his arms wide, as if painting a scene across the room. “You despise me. You threaten me. Yet in the name of Charlie—sweet, radiant Charlie—you’d bind yourself to me if it meant shielding her from my whims. Imagine it: the fiercest protector of Heaven’s exile making her own pact with the Radio Demon.”

Her spear trembled in her hands, not from weakness, but from the rage boiling under her skin.

“You’re disgusting,” she spat.

“And yet,” Alastor replied softly, his grin never faltering, “you haven’t said no.”

The silence between them grew thick, a predator’s patience pressing down on prey. Shadows stretched toward her feet, curling and retreating like waves testing the shore.

Vaggie’s eye burned into him, her voice low, trembling with fury and conviction. “If I ever did agree to a deal with you… it would only be to keep Charlie safe. And don’t you dare mistake that for anything else.”

Alastor chuckled, the sound warm and cold all at once. “Oh, but that is exactly what makes it so enticing.”

The room seemed to shrink around them, every corner crawling with his shadows. Vaggie’s spear stayed leveled at his chest, but Alastor leaned forward into its point as if daring her to strike.

“If you are genuine that you’d do anything for her,” he purred, voice dripping like poison honey. “So let’s make it official.”

Before Vaggie could react, his hand snapped forward, long fingers curling around the shaft of her spear. The wood hissed beneath his touch, shadows threading along it like veins. His grin widened, eyes flashing.

“A contract,” he declared, his tone bright as a fanfare, though the shadows quivered with hunger. “Yours truly promises not to harm your precious Charlie, nor exploit her 'deal'. A little oath, nothing more.”

Her jaw clenched. “And the price?”

Alastor’s pause was deliberate, as if he’d been waiting centuries to hear those words. His gaze traveled over her—her stance, her trembling fury, her body taut with resistance—and his grin sharpened. "Oh it's just a simple one, my dear..."

"Which is?"

He lowered his cane slowly, almost respectfully, though his eyes glimmered with static hunger. “All I ask…” his tone softened, almost gentle, “is for us to share… a partnership of sorts."

Vaggie blinked. Her spear wavered, caught off guard by the lack of malice in his voice. "A partnership?"

He nodded, shadows slithering lazily around his feet. "You have my word, dear. No tricks, no deception. Just a simple exchange of loyalty: you, for Charlie's safety. A deal so sweet, it could only be made in Hell."

Vaggie's eye narrowed. She tightened her grip on her spear, knuckles whitening. "I don't trust you."

"Oh, but you must," he said softly, his grin widening, "unless you want me to cash in my part of the deal that I made with Charlie. Who knows what I might do to our innocent princess~?"

The words hit her like a blow, making her stagger. Her eye narrowed. “That’s it? No blood, no sacrifice?”

“Not at all!” he chirped, his radio-tone laced with static warmth. “Merely your cooperation. You know the old saying, 'It takes two to tango', if you will. Nothing more… nothing less.”

Vaggie’s grip tightened, suspicion gnawing at her gut, but the thought of Charlie chained to this monster burned hotter. If it was her burden to carry, so be it.

“Fine,” she spat. “If it keeps Charlie safe, then I’ll sign your damn deal.”

Alastor’s grin widened to inhuman lengths. With a snap of his fingers, a shadowy parchment curled into existence, inscribed in crimson ink. The pen appeared in her hand before she could think to resist.

Her name spilled onto the page. The contract burned with static and vanished into his sleeve.

For a moment, silence reigned. Then Alastor’s chuckle rang out—low, velvety, and uncharacteristically dark.

“Oh, Vaggie… you should have read the fine print.”

Her chest tightened. “What did you do?”

His shadows leaned close, curling like smoke around her form without touching. His voice dipped into something deeper, a frequency that rattled the bones.

“Obedience,” he purred. “Not in matters of business, my dear. Not strategy, not war. No, no, no… You will obey me in all things. Every whim, every request, every delicious little command that crosses my mind.” His eyes swept over her, lingering shamelessly. “And I do believe I’ll enjoy testing just how far that loyalty of yours can stretch.”

Vaggie’s spear shook—not from weakness, but from the sickening realization of the trap she had walked into. Her eye blazed with hatred. “You bastard!!!”

She lunges at him, swinging her spear in a wide arc that would have severed his head from his neck. But Alastor was faster.

He grabbed her spear in one hand and yanked her closer, shadows curling around her form like vines. His grin widened, his eyes flaring with crimson light. "Oh, my dear, you were far too trusting," he purred, his voice laced with static.

"*Ngh* Bastard!" Vaggie tries to struggle free, but is useless.

“The blame is on you, my dear… No questions. No refusals. No escape.” His gaze raked over her with a hunger he rarely revealed, though his smile never lost its playful mask. "Now, let's see how much fun we can have together."

He releases her. She falls to the floor. "I'll fucking kill-"

"Quiet. It's time for our first little session~"

A hushed Vaggie glared up at him, a storm of curses and threats burning in her chest. But Alastor only laughed. "So defiant! So passionate!" His cane clicked against the marble as he circled her, his smile growing wider. "Why don't we start this off with you standing up, my dear? Dust yourself off, like a good girl. And then I'll decide what comes next."

His tone was sweet, almost coaxing, but the threat behind it was unmistakable. Vaggie didn't want to obey him, yet her body seemed to follow his order. Much to her disgust, she slowly rose to her feet, dusting herself off and standing there like a doll on display.

"Good. Very good," Alastor purred. He stepped closer, shadows slithering around his feet. "Now, how about we get that shirt off, hmm?"

Vaggie snarled. "No."

He tilted his head, his gaze unreadable. "Yes. Now, let's be good and do as I say."

She tried to resist. She struggled and screamed. But the contract had already sealed her fate.

Her arms moved on their own, reaching up to grasp the hem of her shirt and slowly pulling it over her head. Vaggie's mind went numb with horror as she stood half-naked before him, her breasts heaving with each ragged breath.

"My, My!" Alastor praised, his voice warm with mirth. He couldn't believe how voluptuous Vaggie was, despite her petite frame. "Where were you hiding those? Simply breathtaking. It almost makes me want to savor this moment."

 

 

Vaggie glared daggers at him, her fury boiling hotter with every passing second. But Alastor just chuckled.

"Let's move on to the next step, shall we? Would you kindly remove your skirt, my dear? No need for modesty."

Vaggie's hands moved on their own, fingers curling around the waistband of her skirt and tugging it down. The fabric pooled at her feet, leaving her in nothing but a pair of panties. Her cheeks flushed with shame as his gaze roved over her bare form, lingering shamelessly on the fullness of her breasts, the curve of her hips, and the thickness of her thighs.

"Oh, my dear. You're simply exquisite," he purred, his grin widening.

"Shut up!" she snarled. Her hands clenched into fists, but they wouldn't rise. "I'll kill you for this."

Alastor laughed. "Oh, I doubt it. But let's not get ahead of ourselves, hmm? There's one last piece that needs removing..." He gestured to her panties, his smile growing wicked. "Take them off. Now."

Vaggie's jaw clenched. Her body obeyed. She shimmied her panties down her legs and stood before him completely naked.

Alastor hummed his approval, his eyes glowing with static as he raked them over her bare form. "Delightful, simply delightful! Hm? Does my eyes deceive me?"

Vaggie's cheeks flushed redder. "What the fuck are you looking at?"

He kneels down to get a closer look. "Cleanly shaven~ Was it done for the princess?"

She wanted to fight back. She wanted to scream and claw at him until he was nothing but a pile of dust. But the contract held her in its grip, and her body refused to move.

"No..." Vaggie choked out, her voice breaking. "I don't know what you're talking about."

Alastor chuckled. "My, my. Such a feisty little lie." He stands back up, then walks behind her. "Let's see if we can't loosen you up a bit, hmm?"

Without warning, Alastor's hands reached around to grab her breasts, his fingers digging into the soft flesh. Vaggie gasped, her back arching against her will. "Stop! Don't touch me!"

 

 

He hummed with amusement. "Don't worry, my dear. I'll treat you gently~"

His fingers began to knead and squeeze, rolling and pinching her nipples until they hardened against his touch. Vaggie whimpered in protest, but her body betrayed her, arching into his hands with every twist and pull.

"No... no!" she gasped, tears stinging her eye. "Get off of me, you sick fuck!"

Alastor only laughed. "You're enjoying this, my dear. Your body can't hide it from me." His hands trailed lower, gliding over the softness of her belly, down to the smooth curves of her hips. "Hmm~ How about we spice things up a little?"

He snapped his fingers, and her arms lifted above her head then tied together with rope. He moves her to the sofa. Bent over with Her legs are spread wide. She's completely exposed and helpless.

"What are you doing? Stop it!"

Ignoring her, Alastor places a finger on her back then drags it down along her spine, stopping when he reaches her buttocks. He kneads one cheek with his hand while his other hand slowly trails down her back, past her hips and right to her pussy. "Oh my~ You're absolutely soaked."

 

 

She whimpers as his fingers slip inside her folds, rubbing against her clit before sliding in and out of her wetness. She moans despite herself as he begins to thrust faster and faster. The feeling of him inside of her is overwhelming, and her body can't help but respond.

"N-no... Please..." she begs, tears streaming down her face. "Please don't..."

But Alastor isn't listening. He continues to thrust his fingers deeper and deeper into her pussy, while his other hand reaches around to grope her breasts again. "I'm doing what I want...", he takes a long deep breath of her scent, "...and I plan to enjoy every moment of it."

Vaggie's body begins to shake as the pleasure builds inside of her. She can't stop herself from moaning as his fingers rub and pinch and thrust and tease.

"That's it, my dear. Just relax and let me take care of you. You're going to love it." He positions himself behind her, unzipping his pants and freeing his erect cock. "You're such a naughty little slut aren't you?" He grabs her ass and smacks it. "How dare you tempt me with your fat rump?"

He slides it between her cheeks, teasing her with the tip of his shaft. "Are you ready, my dear?"

Her eye widen. She can feel his cock pulsing against her skin, and she knows what's coming next. "No! Please! Don't do this!"

But her body won't move. It's too late.

Alastor grins as he thrusts his cock inside of her, filling her completely with every inch. Vaggie screams in pain, much to his delight. "Give it a moment, my dear. The pain will soon fade away."

She whimpers, her body trembling as he's fully inside her. She can feel his monstrous cock throbbing and pulsing inside of her, and it makes her sick. "Please... don't do this..."

"Shh~" Alastor whispers next to her ear, his voice soothing despite the cruelty of his actions. "Just relax and let me take care of you." He begins to thrust slowly, letting her adjust to his size before increasing his pace. "Oh, my dear~ You feel so good around me. It's like we're made for each other~"

Vaggie's eye are squeezed shut as he continues to thrust in and out of her, his cock filling her over and over again. She feels herself getting wetter with every thrust, and she hates herself for it.

His hands grip tightly on her hips, holding her in place as he thrusts deeper inside of her. "Ah~ You're so tight, my dear. If I'm not careful... I might go feral~"

Vaggie's body is on fire, the pleasure building and building as he continues to fuck her. "Unf! Ugh! Fuck!!!"

He grins down at her, his eyes glowing with static as he picks up the pace. "That's it, my dear. Give in to your desires. You deserve to feel good." He spanks her ass hard, making her scream and clench around his cock. "And here I thought you didn't like men~" He continued to spank her. 

 

 

She bites her tongue, not wanting to allow him to hear her moans as he continues to thrust inside of her, his cock pulsing and throbbing as it scraps her walls. 'I... won't let you... win.'

Alastor chuckles darkly, his grin widening as he watches her body tremble with pleasure. "Are you denying me the satisfaction of hearing your angelic moans? How rude~" He reaches around her neck and grips it tightly, forcing her head up. "Let me hear you sing, my dear. Don't hold back~"

 

 

She grits her teeth, refusing to give him the satisfaction of hearing her moans. "N-never..."

He sighs dramatically, his hand gripping tighter around her neck. "If you won't moan, then I'll make you scream~"

 

 

His thrusts grow faster and harder, his cock pounding in and out of her pussy, filling her completely with every stroke. Vaggie bites her tongue, trying not to moan as the pleasure builds inside of her. But it's too much. She can't hold it in anymore.

She screams out, her voice echoing throughout the room as he continues to fuck her relentlessly. She can feel him throbbing and pulsing inside of her, and she knows he's savoring every bit of it.

 

 

"That's it~ Let me hear that voice, my little angel. Every gasp, scream, and breath is now mine, understood?"

She nods her head weakly, tears streaming down her face. "Fuck...you..."

He grins, his eyes flaring with static. "Good. Now let me have a taste of you, my dear." He leans down and begins to kiss and suck on her neck, leaving a trail of bruises and bites along her skin.

She gasps and moans as he continues to thrust inside of her, his cock growing harder with every stroke. "Ah~ You're so sweet, my dear. I want to devour all of you~" His hands rove over her body, groping her breasts and pinching her nipples, making her whimper in pain.

 

 

He continues to fuck her, his cock throbbing and pulsing with every thrust. "You're so tight, my dear. I'm going to cum soon~" He grins wickedly, his eyes glowing with static. "But don't worry. I'll make sure to fill you up good~"

She whimpers, tears streaming down her face. "No... please..."

He ignores her pleas and continues to thrust faster and harder, his cock scraping her walls and hitting her deepest spots. "Ah~ You're going to milk me dry, my dear~"

She whines as the pleasure builds inside of her, her body trembling with every thrust. She can feel him throbbing and pulsing inside of her, and she knows he's close.

With one final thrust, Alastor releases his load inside of her, filling her with his seed. She moans loudly, her body shuddering with pleasure as she feels his warmth filling her. She gasps and whimpers as he slowly pulls out of her, his cock dripping with their combined juices.

 

 

Alastor leans back, admiring his handiwork. "My, my. Look at how messy you've become. It almost makes me want to go again~" He strokes his still-erect cock, grinning down at her. "But alas it would seem that our companions are to arrive soon."

Tears running down her cheek as Vaggie pants heavily, her body aching from his rough treatment. She tries to speak, but all that comes out are broken whimpers and moans.

 

 

 

Alastor snaps his fingers, instantly cleaning himself up. He dusts himself off, his grin widening. "What a good little girlfriend you are." He caresses her soft hair, "I'll leave our little princess alone for now. But I do look forward to next time."

Vaggie glares at him with hatred as he looms over. Her body aches, and she can still feel his cum dripping down her thighs. She wants to scream, to curse, to kill him. "...Next time?"

He chuckles, his eyes glowing with static. "Of course! You didn't think this was a one time thing, did you? Oh no, my dear. Our partnership has only just begun~"




 

 

 

To be continued?

Notes:

Got a killer idea for the next chapter? Drop it in the comments and let’s see where the story goes!