Chapter Text
She had been looking for months, relic after relic leading her to the tomb in Mount Wundagore. She was in the middle of fucking nowhere, if the darkhold wasn’t here she might actually lose her mind.
She could feel the energy thrumming in the air as she entered the tomb. The change in the atmosphere that only happened when magic was afoot.
Whatever was hidden in the tomb was powerful, she could tell from the tingle in her fingertips, the shiver that ran up her spine the closer she got to the source.
She pushed past a crumbling pillar, rounding the corner and there it was. The darkhold in all its untapped and deeply damned glory.
She felt the tension release from her shoulders, head dropping forward into her hands. She had finally found it. Centuries later, here it was sitting in front of her. The book of the damned.
The book that could bring Nicky back from the dead.
She let out a shaky breath, moving forward to take the book.
As she reached out for it she felt a blast of cold air envelope her, stopping her in her tracks.
“I don’t think you want to do that Agatha.”
She whipped her head around to find Rio leaning gently against the crumbling pillar, her jaw bone exposed and glowing lightly in the dark of the tomb.
“I don’t think you know what I want” Agatha countered, turning away from Rio and back towards the darkhold.
“It’s not going to work, he won’t be the same if you bring him back” Rio explained softly.
“Don’t act like you give a fuck about him now” she barked out. Where did Rio get off acting like she wasn’t the reason he was gone in the first place.
“Agatha…” Rio said exasperated, “I had no choice, you know that.”
“I don’t know anything, except that I want you to leave me the fuck alone.” She reached forward then, nails digging into the corners of the ancient book.
She gasped as the magic from the darkhold flooded her bloodstream. The dark magic covering her fingertips, painting them an inky black.
“How does it feel?” Rio asked, she sounded genuinely curious.
“It feels limitless, it feel like… like I’m in control.” She murmured.
“If you want to be in control - you can be.” Rio whispered, eyes drifting down Agatha’s frame. Her eyes catching on the inky black fingers before they moved down further to the growing bulge in her pants.
“I thought you were supposed to be trying to stop me, trying to maintain the sacred balance” she said mockingly.
Rio scoffed, pushing herself off of the pillar to stalk towards Agatha. “That was before I saw what the darkhold would do to you.”
She moved forward pressing her hand against Agatha through her pants as she whispered in her ear “Power looks good on you.”
Agatha tried to laugh but it caught in her throat at the sudden contact. It came out shaky and breathless. “Honey, everything looks good on me.”
Rio shifted then, face morphing into her human form as her lips came up to Agatha’s ear, sucking the lobe into her mouth.
Agatha let out a low groan, feeling much less in control than she had a few minutes ago.
“I don’t disagree,” Rio said with a smirk, allowing her tongue to dart out to lick up the shell of Agatha’s ear.
“I think,” Rio started, voice dropping into a sultry rasp, “we should see if your fingers are the only extremity painted by the dark magic.” Her fingers fell to Agatha’s belt buckle, tugging on it gently.
Agatha’s throat went dry at the implication and suddenly it was all she could think about.
Gone were her plans of hiding behind the magic of the darkhold to get away from Rio. She wanted nothing more in this moment than to bare herself to Rio. To let Rio have her completely, dark magic and all.
Agatha reached forward, grabbing Rio by the chin. She dug her nails into the skin of her cheeks hard enough to hurt. The newly inky black nails and fingertips contrasting beautifully against the rising blush in Rio’s cheeks.
She brought their faces inches apart before whispering, “get on your knees.”
Rio whimpered into her mouth, dropping to the ground on command. Agatha let out a harsh laugh at her obedience.
“Always such a good little pet” she murmured.
Rio’s fingers were trembling now as they reached for Agatha’s belt, unbuckling it with ease as reached to undo the button on Agatha’s pants.
With her pants undone and Rio reaching to pull down her zipper she paused.
“Ah ah ah” she tsked grabbing Rio by the wrists.
“I think,” she started, pausing dramatically, “I think I want you to keep your hands to yourself.”
Rio’s pupils were blown wide and she simply nodded, pulling her wrist free from Agatha’s grip and grasping them together behind her back.
“Good girl” Agatha affirmed, taking it upon herself to pull her pants down. She didn’t bother to take them all the way off, just let them pool around her ankles.
Her underwear clung to her tightly, purple lace barely containing the growing bulge of her cock.
“Do you think you can help me with these?” She asked cocking an eyebrow in Rio’s direction.
Rio’s brow furrowed for a moment.
“With your mouth.” Agatha supplied,
“Y-yes, I can do that, I can use my mouth.” Rio nodded enthusiastically.
Agatha bit back a laugh, she had forgotten how pathetic Rio got when she was horny.
“Well then, get to work” Agatha gestured down at herself.
Rio moved with newfound confidence, taking the corner of Agatha’s lacy underwear between her teeth. Agatha was expecting Rio to attempt to pull them down her legs but instead she used her canines to rip through them, tearing the lace away from her body in a swift motion and repeating the same on the other side until the underwear was nothing but a few shreds of lace between her legs.
Rio leaned forward then, pressing a kiss over the last piece of fabric covering her before pulling it away with her teeth.
Agatha’s eyes were locked on Rio as her cock sprung free, pressing forward against Rio’s lips.
Rio let out a small gasp, taking her in. The same inky black of the dark magic covering the tip of her cock, fading out down her shaft.
Rio let her tongue slide out of her mouth, licking from the tip down to the base of Agatha’s cock. She let out a pleased hum.
“I can taste it.”
“Taste what?” Agatha asked, body thrumming under Rio’s attention.
“The power” she said, her voice dripping with lust.
She kissed the tip of Agatha’s cock before taking it in her mouth. Her tongue swirling around her length as she moved forward setting a torturously slow pace.
Agatha let out a throaty moan as the heat of Rio’s mouth enveloped her. God she had fucking missed this. She wanted nothing more than to hate Rio for everything she had done, but her body refused to let her.
It was like a pavlovian response, Rio pursed her pretty little lips and Agatha’s cock twitched in her pants. She couldn’t seem to help herself.
Rio was staring up at her through thick lashes, hands still clasped tightly behind her back as she shifted forward to take all of Agatha in her mouth.
Agatha’s hands flew to the back of Rio’s head, fingers tangling in her silky black hair. It was longer than the last time she had seen her, now flowing down her back ending just below her ribs.
She looked fucking good. Especially like this, on her knees for Agatha.
“Fuck Rio” Agatha gasped out as Rio’s nose brushed against her neatly trimmed curls. Rio’s eyes flitted up, locking on Agatha’s as she gagged on her cock. Her throat constricting around Agatha making her eyes roll back in her head.
She choked out a gasp when she saw the spit dripping down Rio’s chin and onto her chest.
“Such a sloppy girl.” She chidded, bringing her free hand down to swipe across Rio’s chin collecting the spit there and bringing it to her own mouth.
She hummed as she licked her fingers clean one by one, Rio moaned around her as she watched.
She tightened her grip in Rio’s hair and thrust forward, watching Rio’s reaction carefully.
Rio shuddered in response, gagging lightly again. She brought one of her hands from behind her back down between her legs, thighs trembling as she cupped herself over the long black skirt she was wearing.
“Poor thing, so desperate aren’t you?” She mocked.
Rio just moaned in response. God she was so fucking depraved. Agatha couldn’t get enough.
“Too bad.” Agatha said coldly, “hands behind your back. Maybe if you behave for me I’ll let you touch yourself.”
Rio whimpered pathetically, pulling back far enough that Agatha’s cock dropped from her mouth.
“Please Agatha, please I need something.”
“If you’re not going to listen of your own volition, I’m going to have to make you.”
“M-make me?” Rio stuttered, pupils dilating in anticipation.
“Make you.” Agatha affirmed, flicking the tips of her inks black fingers summoning ropes of magic that tied Rio’s hands tightly behind her back. Another rope coming up to wrap around her neck, just tight enough that she couldn’t struggle.
Agatha leaned forward to murmur into Rio’s ear, “you know what to do if you need me to stop?”
“Yesss” Rio hissed under her breath sending a green spark from her fingertips.
“Good girl.”
Rio’s thighs twitched, clenching together at the praise.
“Now you’re going to let me fuck your face and in return I’ll let you choose where I come when I’m ready.”
Rio nodded eagerly at the reward.
She stroked herself lazily as she lined herself up with Rio’s mouth.
Rio spread her lips happily as Agatha thrust into her mouth slowly. She picked up her pace as she pushed the back of Rio’s head forward with each thrust. Tears were flowing freely down Rio’s cheeks now but she never took her eyes off of Agatha.
Agatha experimentally tightened the rope around Rio’s neck and was rewarded with a moan that vibrated around the length of her cock that was still buried deep in Rio’s mouth.
It had been too long and Rio felt too fucking good, she knew she wasn’t going to last long. Especially with the new power thrumming through her veins, she felt high off it.
She could feel the pleasure building low in her stomach, her cock twitching in Rio’s mouth as she tried to stave off her orgasm.
“Tell me where you want it.” She husked out, pulling Rio’s head back almost violently to stop herself from spilling down Rio’s throat.
Rio gasped for air, letting her tongue flick across the edges of her already wet lips.
“I want you to come inside of me.”