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tainted heart

Summary:

Agatha wasn’t a very nice boss. Striking fear in her employees was part of what kept her from losing her mind.

or agatha is a terrible boss and rio is horny about it. au solely for the purpose of gratuitous smut.

Notes:

MIND THE TAGS. raunchy mommy kink and poor bdsm practices ahead and i'm not sorry.

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

Chapter 1: in your head

Chapter Text

Agatha stopped at Rio’s desk with a huff, her arms crossed across her chest and her best disappointed look on her face. And she was. Disappointed, that is. 

 

“Miss Vidal,” she said, really wrapping her lips around the syllables as they came out. 

Rio turned in her chair then, her eyes finally meeting Agatha’s. “Ms. Harkness.” 

“Please follow me to my office.” 

 

She turned on her heel then, stalking away without waiting. If Rio could send that project off to their clients without waiting for the okay from her and the rest of the (very large) team, then Agatha figured it was fine for her to do things without waiting, too, like increase her quota for the rest of the quarter. Or deny the vacation request she’d sent in the week prior. 

 

Agatha wasn’t a very nice boss. 

 

Striking fear in her employees was part of what kept her from losing her mind. 

 

Behind her somewhere, she heard quickening footsteps, Rio’s boots falling heavily on the floor as her pace picked up into what Agatha could only assume was a run. She smirked at that. It didn’t help that she enjoyed tormenting this one just a smidge more than the rest. 

 

Rio just got so mouthy, so instantly antagonistic whenever Agatha teased her even in the slightest. She liked the fight, the back and forth, even if she pretended she didn’t. She could always count on the hardened look in Rio’s eye, the way her tongue would dart over to the left side of her pretty mouth and push whenever she got pissed off. Agatha found it all quite fulfilling.

 

She passed through her door a full five seconds before Rio did. She waited near her desk, tapping her foot in annoyance, watching with an amused smirk on her face as Rio hurried in. 

 

“Good to see you, Vidal,” she snarked. 

Rio sighed. “What can I do for you, Ms. Harkness?” 

“Close the door.” 

 

Rio rolled her eyes, but did exactly as Agatha said without a second of hesitation. Either she knew what she’d done wrong, or she was playing another game. Both options intrigued her, so she just watched, taking in her loose-ish bun and the black pantsuit she was wearing. It was cute, maybe a step above her paygrade, but she liked to show off, as it were. 

 

As soon as Rio had moved away from the door, Agatha raised her brow and nodded toward the chair on the side of the desk closest to her. “Sit.” She moved to round the desk to her own chair, but paused when she didn’t hear the chair moving. A glance over her shoulder showed her still standing motionless, hands resting on the back of the chair. “Miss Vidal, I said take a seat.” 

Rio shrugged. “I’ll stand.” 

“I’d really prefer it if you sat down,” Agatha pressed, turning fully around to face her. 

“And I’d really prefer it if you told me what the hell you have me in here for.” 

Bristling, Agatha sharpened her tone. “Watch your mouth.” 

“You sure do.” 

 

Fuck it . Agatha crossed the room then, three quick strides getting her right into Rio’s personal space. She shoved her up against the wall closest to them, the one adjacent to her desk, a single finger pressing right into her sternum. 

 

She had expected fear, wide eyes and frantic squirming, maybe a pair of hands against her shoulders to push her away. Instead, Rio’s eyes darkened and she smirked , her teeth just visible between her widening lips. 

 

Agatha sucked on her teeth. “What’s funny ?” 

“Nothing,” Rio replied innocently, shaking her head in obviously feigned earnest. “I just know you’ve been wanting to do this for a while .” 

A laugh bubbled up from Agatha’s stomach, the sound more nervous than she’d like as she rolled her eyes. “Well,” she scoffed. “You might be projecting a bit there, toots.”

“Am I?” Rio asked, her brows knitting together in more of that fake innocence that Agatha sort of wanted to slap off her face. “ Mommy ?” 

Agatha’s blood ran cold at that, her stomach dropping with such vigor she felt the floor sway. “What did you just call me?” 

“Don’t pretend,” Rio purred. She pushed off the wall then, grabbing Agatha’s wrist and pulling her hand down so she could get even closer. “I’ve heard you .”

Shamefully, Agatha knew exactly what she meant, and god did it ever piss her off. Still, she denied it. “I truly do not know what you’re talking about.” 

“Right,” Rio lilted, narrowing her eyes. “That was someone else I heard in here last week. Someone else was in the boss’ office moaning and calling herself mommy .” 

“Well, I-”

“You have no idea who all but yelled my name from inside your office right before she came ?” Rio pushed. “Or maybe I’ve got it all wrong. Enlighten me.” 

 

Whatever edge Agatha had once had, her carefully crafted persona of instigative terror had shattered. She shook her head, but Rio just smirked and leaned in further.

 

“Come on,” she murmured, her lips grazing Agatha’s just so. “You know you want this.” 

 

She did, oh god she did. It would be so easy to lean in, to press her mouth to Rio’s and have exactly what she wanted, what she’d been craving. 

 

Honestly, Rio had been haunting her, coming to her in visions of dark hair and smooth skin in her dreams for weeks. It was distracting, and part of the reason she’d been particularly harsh as of late. Perhaps, just maybe, this would fix her. 

 

“Say it again,” Agatha ventured, drunk on Rio’s proximity. 

Mommy .” 

 

Agatha moaned and leaned in, cutting herself off by taking Rio’s top lip into her mouth. Without missing a beat, Rio leaned in, too, her hands wrapping around Agatha’s back as she did. Her hands were hot on Agatha’s skin, so tantalizingly enticing that it made her head swim. She followed suit then, her own hands picking up from between them and pulling Rio in by the waist. 

 

It was Rio who opened her mouth first, Rio whose tongue jutted out and brushed against Agatha’s bottom lip. Unable to deny her, Agatha obliged and parted her lips, gasping at the almost immediate intrusion of Rio’s warm tongue in her mouth. She was demanding, far more insistent than Agatha had ever imagined her being–and she’d imagined a lot –, but she didn’t hate it . That, too, surprised her, maybe even more. She felt drunk on her need, so many weeks of unspoken desire pent up inside her that had compounded, that all rose to the surface now that Rio was this close. Agatha wanted it too much, so much her mind had melted, turned to honey and seeped into her veins as she fought a throb between her legs that only seemed to worsen. 

 

Rio pulled her tongue back then and nipped at Agatha’s lip, a cruel chuckle escaping her next when Agatha whined at the loss. “You like that, Mommy?” 

 

Agatha’s eyes were screwed shut tight as she fought her dizzying need. She nodded, humming an mhm in hopes of sufficing the entirely too demanding woman standing before her, but it didn’t work. 

 

“I asked you a question,” Rio cooed, her voice saccharine and inviting. Agatha felt a hand on her cheek. “Tell me, Mommy, did you like that?”

 

Something in her tone gave Agatha pause. There was a softness there, a craving for something –her approval, maybe? Her praise? Whatever it was flitted around Agatha’s mind for a moment. She felt it grow, moulding itself into her head and attaching itself somewhere out of reach for her to find later. 

 

Her eyes eased open and she nodded. “Yes.” 

 

The look in Rio’s eyes was wild and dark, a sharp contrast to the sweetness of her voice. The back and forth was driving Agatha crazy, both sides of the scale making the craving need between her legs increase tenfold. It was deeply unfair, just how affected she was–she’d always been the one to work Rio up this way, in her imagination. In her mind, Rio would crumble, her body calling out to Agatha to do anything she wanted to her, begging and pleading and sometimes even crying, but this . She had no idea what to do with this. 

 

Rio’s lips found her neck next, and they were demanding, determined. She took the sensitive skin beneath Agatha’s jaw, above her collar, and eventually right down between her collarbones into her mouth with a harsh suck, lingering at each place she paused until a bright stinging made Agatha whine. She was marking her, and Agatha couldn’t find it in her to stop her, not when each kiss melted like cotton candy on her skin, not when the pain of the beginnings of bruises turned to sweet fire in her blood. 

 

“Rio,” she moaned when Rio found her pulsepoint.

 

Rio hummed against her, clearly happy with how she’d reduced Agatha to a mess of heavy breathing and desperately clawing hands. 

 

Rio .” 

“Yes, Mommy?” Rio whispered. 

And then Agatha said something she never thought she’d say. “ Please .” 

 

Rio laughed, really laughed , a cruel, sinister sound that only made Agatha’s legs weaken. She sank to her knees then, her hands trailing down Agatha’s sides as she went. Through the thick fabric of her slacks, Agatha felt her nails scraping at the outsides of her hips, her thighs, the dulled sensation sending shivers up her spine. She bit her lip and stared down, eyes boring into Rio’s pleading gaze, and nearly moaned when Rio’s fingers found the waistband of her pants.

 

Agatha reached out and tangled her fingers beneath the bun in Rio’s hair, taking a handful in her grasp and tugging, effectively halting Rio’s rushed attempts to rid her of the fabric standing between her mouth and what she wanted so badly. Rio moaned loudly , a wicked smile clear on her face at the rough pull, her eyes glazed with the beginnings of tears as Agatha forced her eyes back up. 

 

“What?” Rio asked, her tone sarcastic and taunting. “You don’t want my mouth on you, Mommy?” 

Agatha’s lip stung as her teeth dragged off it. “I do.”.

Rio laughed, her tongue darting to the side of her mouth. “Then loosen your hand in my hair.”

 

It was a challenge, she knew it was. Rio wanted her to admit that she had the upper hand, and, though she sort of did, Agatha knew it wouldn’t last. She didn’t want to admit that she still liked it this way, but she ceded anyway. Her grip slackened, her fingers only resting on Rio’s scalp instead of iron-clad around whatever she could grab. 

 

“There you go,” Rio teased. “Good girl.” 

A jolt of electricity shot right into Agatha’s cunt, but she fought it, keeping her eyes locked on Rio’s. “Don’t talk to me like that,”  she snapped. 

“You like it. I know you do.”

“You think I do, and you’re wrong .” 

“No, you know what I think ?” Rio pushed, her fingers toying with the button of Agatha’s pants. “I think you’re a whore and that being challenged makes your pussy drip, Mommy . You’re depraved.”

 

Against everything in her, Agatha moaned, her head tipping back and hitting the wall behind her as her arousal heightened. 

 

Rio kept going. “You pretend you’re so scary, but really all you want is a girl between your legs, doesn’t matter what she says to you, isn’t that right? You’d let me do whatever I wanted to you right now.” 

 

The words hit her ears like blows to the stomach, each one heavy and so true , though not the way Rio was saying it. Technically, she was right, Agatha would let Rio do just about anything to her, but the attitude… god, the attitude was infuriating. She’d never taken herself to be much of a brat tamer, usually finding it more fun to scratch her sadistic itch on a more willing target, but Rio was nothing if not bratty, and she wanted her anyway. Oh , how she wanted her. 

 

“Fucking answer me,” Rio bit from below. 

Agatha tightened her hand in Rio’s hair then, her eyes snapping open as her chin lowered. “Don’t you dare speak to me that way.” 

“Or what? You’ll spank me?” 

The laugh bubbled up from Agatha’s chest before she could stop it. “You’d like that too much.” 

“Maybe,” Rio mused, her voice pitching low like she was really thinking about it. “But you want to, anyway.” 

 

Fingers deftly undid the button and zipper on Agatha’s pants, then tugged the material down her legs swiftly, firmly, an action that left no question in Agatha’s mind. Rio would take what she wanted, and she’d let her. 

 

“Think about it,” Rio continued. Now, she was pulling at the fabric of Agatha’s underwear–lace and nothing else, barely a layer covering her. “You’d love to see my ass red with your handprints, wouldn’t you? Don’t you wanna see just how much I can take before I break , Mommy ?” 

 

Agatha blanched at her words, at one of her foremost fantasies being detailed out loud in the quiet air of her office. Her jaw fell open, her mind racing –she would like to see that, she craved to see Rio’s body bruised by her hand, she needed it . She inhaled a shaky breath, her mind blank of everything except for the intense ache she felt deep inside her, the tightening of something in her stomach. 

 

That’s when Rio pulled her underwear down, taking advantage of Agatha’s moment of weakness. Agatha was helpless to stop her, her legs turning to jello as Rio guided one of her knees up and over her shoulder next. All she had was her loose grip on Rio’s hair for balance as her tongue touched down, red-hot and wet against her cunt. 

 

Agatha moaned loudly, her whole body collapsing against the wall as a wave of pleasure overtook her. Rio’s tongue was like silk on her, her mouth insistent and firm in its exploration of her pussy. She could feel herself dripping onto her chin, her body weeping at the relief of stimulation, but somehow it only made it worse. The feeling of Rio’s mouth against her, of her hands anchored to her bare ass as she pulled herself deeper, only added to the expanding throb of need. 

 

Each nerve in Agatha’s body stood on end as Rio groaned into her, the vibrations shooting up through her clit and into the coiling tightness in her abdomen. It was torture–she hadn’t been this turned on ever , not once before so wound up and needy, so desperate and brainless. 

 

Agatha was sure that if Rio hadn’t pulled her leg up and over her shoulder she’d be on the floor in a heap, but Rio’s influence over her body was a double-edged sword. Not only could she mouth freely at Agatha’s cunt, push her tongue up and inside of her, suckle at her clit, but she could also hold her so mercilessly still. Her hips were glued in place, her body forced into one unmoving position by Rio’s hands that she couldn’t break nor squirm from. 

 

It was torture to be given such unrelenting pleasure, to be made to take every bit of what Rio was giving with no way of pulling back, no means to lessen the blow of the direct contact of her lapping tongue against the incessant wetness that seeped out of her. 

 

She could taste her incoming climax on her tongue, her entire body on edge and tingling, and yet Rio wouldn’t relent. Agatha was practically screaming– god she hoped no one would walk by–, her hips trying and failing over and over again to cant forward closer to the divine sensations of Rio’s tongue. She was chasing it, running a race she wouldn’t win, so frenzied in her pursuit of arousal that she nearly injured herself in the process. 

 

Rio just took it in stride, continuing to drag stroke after stroke of her tongue through Agatha’s throbbing cunt, seemingly unfazed by her descent into aroused madness. 

 

“Rio, I’m- Shit-”

“Gonna come for me, Mommy?” Rio asked, taking a break just to taunt Agatha. “Beg for it.” 

Agatha tightened her hand in Rio’s hair once more, pleading silently, but it was no use. “Rio please , please let Mommy come,” she begged. “Mommy’s so close, god , please , Rio, fuck. ” 

“Come for me.” 

 

Rio took Agatha’s clit into her mouth again and sucked without a moment’s hesitation, and Agatha saw stars. She cried out loudly, her entire body shaking with the sheer force of her climax, nearly collapsing with the intensity of it. Rio just hummed against her and tightened her hold, the tip of her tongue flicking against her clit as she did. 

 

Agatha was sure she’d never come so hard in her life, and her body was on fire because of it. The blood in her veins was hot and sweet, a feeling so intoxicating she was already craving more before it had even ended. It was sick, really, to fall apart this way for such a gorgeous woman–she couldn’t stand the idea of seeing her go once it was over. 

 

Alas, as it always did, Agatha’s orgasm ebbed, the last dregs of it flowing like molasses through her, and she hissed as it became all too much. Her eyes fluttered open and she looked down to see a very satisfied look on Rio’s face, and nearly moaned all over again because of it. 

 

“Fuck,” she sighed, easing her leg down from its place on Rio’s shoulder. “Your mouth is just as good as I thought it would be.” 

“So you thought about me?” 

 

Agatha looked away and refused to answer, averting her gaze instead to the pile of her clothing on the floor at her feet. Yes , was the truthful reply, but she said nothing as she bent down and slid both her (damp) underwear and her slacks back up her legs. 

 

“Stand up,” she said. 

 

Rio obeyed at once, scrambling to her feet. As good as her mouth felt when she was being a brat, Agatha liked this version of her much better. 

 

Agatha took her by the chin. “Don’t think you have any sort of upperhand,” Agatha said, her voice low and firm in hopes of hitting Rio right where she’d feel it. “See me first thing tomorrow.” 

 

Rio nodded as best she could against the grip on her face, which Agatha appreciated immensely. She was depraved, but she wasn’t an animal

 

“Yes, Ms. Harkness.” 

 

Agatha released her face then, turning away on her heel and moving to her desk without a moment’s hesitation. She straightened her shirt and sat, picking her glasses up from where they sat just before her and slipping them on. As she did, she peered up. Rio was just standing there. Watching her. 

 

“You’re dismissed,” Agatha said, picking up a pen and waving it carelessly toward the door. 

 

That got Rio moving. Her hand was on the doorknob a second later.

 

“And, Miss Vidal,” Agatha said, keeping her tone as measured as she could as she lowered her eyes to the paperwork in front of her just for show. “Keep your hands off.” 

“Wh-”

Without looking up, she cut Rio off. “That’s all.”