Ain’t No Mountain High Enough | Mammon x Reader
3.4K Words | GN! Reader | CW: mentions of sickness, some suggestiveness | Romance/Humor
When your common cold turns out to be something much more dangerous Mammon rushes into lava-flooded land to find what he believes is your only chance at making it out alive.
Another cough echoed through the house and Mammon flinched. He clicked his tongue in annoyance but Lucifer knew he was only worried.
“They’re still sick?” He asked for the millionth time that day. Lucifer sighed, tired of hearing the same question every few minutes, and nodded.
“Mammon, for the last time—“ he began but his office door swinging open cut him short.
“Lucifer,” Diavolo exclaimed making the two brothers jump.
“Lord Diavolo?” Lucifer asked, unprepared for his sudden entrance.
“I’m afraid I have some unpleasant news—“ his words were cut short by another gaggle of hacks and coughs from the other side of the house.
“That’s, ___, isn’t it?” He asked, brows furrowed in distress.
“Yes. Their cold hasn’t gone away,” Lucifer confirmed and Diavolo shook his head as Barbatos entered the room, equally concerned.
“That’s why I’m here, actually,” Diavolo frowned and Barbatos stepped up to explain in his place, seeing how upset Diavolo was.
“It’s not a cold.” He stated and Mammon jumped to his feet.
“Huh? What is it then?”
“If you’d let me explain,” Barbatos scowled but in his panic, Mammon wasn’t phased.
Lucifer clenched his jaw anxiously and Barbatos continued. “It’s the Hell-Magma Virus.”
“The what?” Mammon interrupted again and this time Lucifer glared at him too and yelled at him to quiet down.
“The recent volcanic eruptions in the third layer have released a slew of ancient viruses. This one is akin to the common cold and relatively easy for a demon to recover from, however—“
Another cacophony erupted from your room as you coughed and cleared your throat continuously. You struggled just to clear your airways from the drainage so you could breathe.
Leviathan cautiously walked into the office while Satan strode in as if he belonged there. He walked up to Diavolo and demanded answers as he’d been eavesdropping.
“You’re not even gonna hide the fact you were listenin’ in?” Mammon scoffed and Satan rolled his eyes.
“As if you wouldn’t do the same.”
“Well, yeah, but that’s different—“
“Mammon shut up!” Lucifer scolded.
“Why only me?” Mammon yelped.
“Quiet!” Satan, Lucifer, and Leviathan yelled simultaneously.
Barbatos shook his head at their quarrel and continued. “The medication we’ve acquired was made from flowers at the bottom of the volcano before the lava burned what was left. We don’t have a strong enough variation of this medication to cure ___.”
“So, we’ll call for Simeon,” Lucifer suggested but Diavolo shook his head.
“This virus…it’s more of a curse, there’s only so much Simeon can do. This curse which acts as a contagious virus will continue for at least twenty days. The medication for demons should clear up their symptoms in three days but for ___ that will be too late. The effects they are experiencing now will worsen until their saliva bubbles and the accumulating mucus in their throat becomes hot enough to burn through their lungs—“
“Aaaah! I don’t wanna hear it!” Mammon cut him off. “Just tell us how to fix it!” Rather than scold him, his brothers agreed and they looked pointedly at Diavolo and Barbatos.
“Well, we’re working on a medication now with aid from our magic but it would be beneficial for us to have more of the magma-glories to work with.”
“Right, got it! Where are they!?” Mammon exclaimed, ready to run.
“Hold on, Mammon,” Lucifer warned.
“There should be more in the fourth layer. However, it’s too dangerous to teleport there as we can’t be sure the lava hasn’t spread anywhere we attempt to land.” Barbatos explained.
“Flying isn’t an option either. The plume of smoke and ash will make it impossible to see or breathe,” Diavolo continued.
Lucifer clenched his fist, “Then I’ll figure something out,” he growled and Diavolo nodded.
“Right, why don’t we call Solomon,” Satan advised and they agreed. All except for Mammon who was already out the door.
“Where did Mammon go?” Lucifer asked, already knowing the answer.
“That idiot…” Leviathan mumbled.
Leviathan left to tell his brothers what was happening and they rushed to your bedside as their older brothers and wiser friends discussed what to do.
You continued coughing and groaned in agony. You felt like you were choking and not even Simeon’s and Luke’s angelic powers could cure it; they could only keep it at bay enough to let you lay down again without suffocating.
You saw their worried expressions and knew something was different, it wasn’t just a cold.
“So—“ you croaked. “Wh-ats, hap-ppen–ing?” You struggled to speak as your throat scratched with every word.
“Well…” Asmodeus bit his lip and looked away and Levi looked at the ground while Beelzebub stayed silent.
You could only wonder what was threatening your life this time around. Tuesday was the last time you nearly died, it was Saturday, and you’d gotten sick Wednesday. That didn’t take long at all, did it…
“Well…” Belphegor tried to explain when Solomon burst through the door to your room.
“Eek! Solomon, give us some warning!” Asmodeus cried out. Solomon ignored him and instead rushed to your side.
“My poor apprentice,” Solomon cooed sadly, but then he grinned and held up a glowing purple vial.
“N-o!” You choked.
“It’s not food,” Satan explained walking in with Diavolo, Lucifer, and Barbatos. You sighed in relief and Solomon frowned.
“I could make you some soup though—“
“There’s no time for that nonsense,” Lucifer hissed and the sorcerer sighed and fed you the potion.
“What is that?” Leviathan asked and Lucifer sighed, more relaxed than he had been.
“It’s the cure. Solomon made it the last time it went around in the Devildom, just in case he could catch it. He didn’t…so he still has it and now it’s very potent due to the amount of time.”
“Wow, really?” Asmodeus gasped. “How long has that been?”
“Hey, there! There’s no need to go explaining my age to them,” Solomon waved, silencing him in an instant. Solomon turned back to you in bed and ignored the question.
Your sickly pale, pasty skin, ten shades lighter than usual began regaining its normal color. Almost immediately you felt the strength to sit up, but as soon as you did, the nausea came in full force. You bent over the trash can, vomiting what seemed like an eternal river of mucus that burnt through the trash can.
“Eek!” Asmodeus screamed in fear and disgust and the brothers looked away uneasy.
Solomon was shocked, “it’s already gotten so bad?”
Barbatos shook his head amazed, “I see. Thankfully ___ is significantly stronger with their pacts and the help of Luke, Simeon, and Raphael.”
“Yes. Thirteen was keeping an eye on their candle too,” Solomon informed.
“That’s cause she wants ___’s soul.” Belphegor chided.
“That’s true, but she doesn’t want it right now,” Solomon argued for Thirteen’s sake. Thirteen wanted your soul as much as anyone but more than that she wanted to enjoy your presence and life much longer.
You rubbed the crust from your eyes and Beelzebub gave you a wet rag to wipe your mouth as Belphegor pulled your hair back.
“Hey…where’s Mammon?” You inquired and everyone looked at each other.
“Oh…somewhere in the fourth layer surrounded by active volcanoes,” Satan said nonchalantly.
You spit out the water Asmodeus had just handed you and he shrieked and wiped his face off.
“What do you mean!?” You demanded.
“Well you see, before we got in contact with Solomon, our options were to experiment with lesser medications we had or to create more potent ones.” Barbatos explained, “We needed a special flower for that, so Mammon ran off to get it.”
“Active volcanoes? He slips down the stairs at least once a week why in the three worlds did you let him go alone!?” You panicked and Lucifer looked guilty.
“He’ll be back when it gets too hard,” Leviathan clucked and you shook your head.
“No, he won’t! It’s Mammon we’re talking about!”
“Exactly,” Belphegor sneered.
You shook your head and glared, “Right! So you should know that when it comes to me Mammon will do literally anything.”
They all fell silent as they thought it over and realized you were right.
“Oh…so he’s probably,” Leviathan muttered.
“At the volcanoes…” Beelzebub worried, frowning.
“Ugh…” Belphegor sighed but was the first to speak up, “Let’s go get our idiot brother.”
Everyone nodded, “Right.”
They began to shuffle out the door but you stopped them before they could leave.
“Wait! One thing!”
“Yeah?” Leviathan asked, worriedly.
“All of you need to promise me—no—you must obey me when I tell you—do not let Mammon know you cured me.”
The six brothers immediately nodded, subjected to your power, but Solomon looked puzzled. “Oh, and why not?”
You frowned, “because…I want Mammon to think he saved me. He tries really hard and…”
“Falls flat?” Satan huffed.
“Fails?” Leviathan stated.
“Disappoints us every time,” Lucifer grimaced.
“He tries?” Asmodeus questioned.
“Enough!” You barked. “Mammon tries really hard and I want him to think he saved my life. Especially because if you didn’t conveniently have this vial, Solomon, Mammon was the first one out that door ready to brave flowing lava and poisonous smoke for me!”
“Poisonous?” Belphegor asked.
“How poisonous…” Beelzebub gulped.
“Uh…well I’m not a volcanologist, as cool as that would be, but…” You looked at Barbatos for help.
“Human world volcanoes release ash that can be detrimental to health when inhaled, even having long-term effects,” he began. “The volcanoes also release carbon dioxide which is deadly when exposed to for too long. Here in the Devildom, it’s the same but at more lethal levels. A high-level demon like Mammon should be fine if he inhaled some but…”
“But he’s probably panicking and running around like a moron looking for the flowers,” Lucifer sighed.
“Well, hurry and get him, he might be passed out on a rock somewhere!?” You ordered and they immediately left.
Simeon, Raphael, and Luke stayed behind to monitor you. Thirteen showed up an hour later when she was sure your life candle was stable.
“Which button do I press if there’s an emergency…?” Simeon asked and angled his phone for Luke to look at it.
“The green one! It’s always the green one!” Luke barked, upset he still had to explain these things to Simeon.
“At this point, he’s got to be messing with you,” Thirteen remarked and walked to your bedside, sitting next to you.
You could tell she had been stressed and you squeezed her hand. She blushed and took it away, “huh? What was that for?” She asked and you laughed at her cute response.
“Thank you,” you said and she turned a deeper shade of pink.
“You mean for looking after your candle? Obviously, I’m not just gonna let you die, you’re way too entertaining.”
You chuckled, “Okay. Sure.”
“What do you mean, sure?” She demanded but Simeon’s phone began ringing.
“The green one?” He asked.
“Yes!” Luke threw his hands up in the air, exasperated.
“Calm down Luke, it’s okay,” Raphael patted his shoulder and Luke crossed his arms and huffed as Simeon held the phone out for everyone to hear.
“The speaker, Simeon,” Thirteen reminded.
Simeon instantly looked confused so Raphael hit the button for him.
“Can you repeat that,” Luke asked.
“We found him,” Satan’s voice sounded over the speaker.
Your shoulders relaxed and you let out a deep sigh, relieved your precious but often stupid demon hadn’t gotten himself killed while running around.
“He didn’t even know what the flower looked like!” Leviathan shouted into the phone and Satan scolded him for being so loud.
“And?” Raphael prodded.
“He found it anyway…” Satan mumbled, seemingly not wanting to admit it.
“Wow, really!?” Luke exclaimed and Raphael looked similarly surprised.
“You were right, ___.” Simeon smiled at you knowingly and you blushed.
“How is he doing?” You asked loudly until Luke finally handed you the phone.
“He’s unconscious. As soon as he saw us he passed out.”
“From fear?” Raphael questioned disgruntled.
“IDK, probably relief. Looks like he was trying to call us.” Leviathan responded and you frowned.
“There’s no fucking signal out here what’d he expect?” Belphegor complained.
“Then how are you calling?”
“Solomon has a spell for everything,” Leviathan responded. “Anyway, we’re teleporting back home now, clear the area in your room.”
“My room—“
“Hurry,” Raphael warned and picked up Luke, jumping away to the edge of your room as Simeon and Thirteen scrambled to jump on your bed.
With a puff of smoke the brothers, Barbatos, Diavolo, and Mephistopheles appeared in the room covered in ash.
Mephistopheles started coughing and wiping the ash off himself as much as he could.
“Oh, hey, Mephisto,” you commented, unaware he’d been part of the crew.
“Likewise,” he grumbled, unhappy with his present state.
“Yeah, we found him too,” Belphegor chuckled and Mephistopheles blushed.
“I would’ve been just fine for your information,” he insisted.
“You didn’t even realize you were surrounded by lava you were so busy taking pictures of it,” Satan argued and the purple-haired demon stiffened up and blushed.
“Mephistopheles, please take better care of yourself. It may be a historically large eruption, but still,” Diavolo worried and Mephistopheles straightened up and bowed, offering a strew of apologies as Diavolo awkwardly accepted them.
Lucifer had Mammon slung over his shoulder and you got up from your bed. Your legs were shaky from all the time you’d spent there and Simeon caught your arm and helped you stand up properly.
“Lie back down, he’s fine,” Lucifer ordered but you ignored him and pointed to your vacated bed.
“Lay him down,” you demanded and Lucifer rolled his eyes and unloaded Mammon.
“Great, now your clean bed has ash everywhere,” Asmodeus pouted. He’d been the one trying to keep the room clean for you during your sick days.
You snapped your fingers and whispered under your breath and the ashes shone brightly and vanished into the air. Luke gasped and Asmodeus’s eyes shone as he watched its brief glow.
“Wow, it’s all gone,” Luke exclaimed.
Mephistopheles nodded and thanked you, as he wasn’t in the mood to deal with any more dirt on himself.
Mephistopheles left, still embarrassed, and Diavolo waved Barbatos and the others from the room. Lucifer ordered his brothers to follow and left you with Mammon passed out on your bed face-down.
Before Satan shut the door behind him you made a zipping motion across your lips, “Remember.” You said and he nodded and repeated the motion before closing the door.
You sighed and smiled.
You looked at the demon snoring in bed and rolled him onto his back.
“That can’t be very comfortable…” you said to yourself and with a bit of magical assistance you removed his coat and took off his sunglasses and shoes.
You drew the comforter over him and crawled onto the other side against the wall, waiting for him to wake up.
Mammon was sound asleep for a long time. Asmodeus brought you food and you played on your phone as you waited. Finally, as the sky reached its darkest hour, Mammon’s nose twitched and he began to softly mumble.
Your name poured softly from his lips and you watched him in adoration. Mammon has always been your favorite even when he wasn’t on his best behavior but today you both proved to everyone else that Mammon could be serious and trustworthy. When it came to you, there was no mountain Mammon wouldn’t climb, no sea he wouldn’t swim across, no hell he wouldn’t face…all for you.
You gently planted a kiss on his lips and his mouth twitched. Slowly Mammon’s eyes opened and his vision cleared up. He sat upright and began coughing, “Oh shit! ___! ___’s flower— I-!”
You threw your arms around him, bringing him back to the present, and as Mammon’s heart slowed he realized where he was. He felt your arms around him and immediately held you close to his chest. He buried his face in the crook of your neck and you felt your shirt dampen as he silently cried in relief.
“Y-you’re okay?” He asked.
You nodded, “Thank you Mammon.”
“Thanks? Did—did I do it?”
You nodded and he hugged you tighter, “Thank goodness… thank goodness!” He exclaimed and began laughing as a weight lifted from his chest.
“Don’t worry! What’d I tell ya, Mammon’s got your back!”
You nodded and laughed still hugging him tightly.
“Forever, right?” You asked and he pulled back looking surprised.
“Of course, forever. Did ya ever doubt me?”
“Not even for a second,” you beamed and his eyes sparkled as you leaned in and kissed his lips.
Grinning, Mammon grabbed your hips and moved you closer to him, positioning you on his waist. He moaned softly as he deepened the kiss between you both. He flicked his tongue across your bottom lip asking for permission. You smirked playfully and parted your lips for him. He growled in excitement and began exploring. He grabbed the back of your head with one hand to pull you in as close as he could and when that wasn’t enough he flipped you onto your back and leaned over you.
Mammon explored your mouth with his tongue excitedly until you patted his back, signaling you needed to breathe. Mammon parted unwillingly, a string of saliva still connecting your lips as you panted heavily. You both laughed excitedly to yourselves and Mammon adjusted himself over you, slinking one hand beneath your shirt.
You moaned into his kiss when suddenly the door burst open, nearly flying off the hinges.
“Oh good, I thought you might be awake,” Satan said in a painfully fake cheerful voice.
“Shit! What the hell man, give us a minute will ya?” Mammon shouted annoyed and angry.
“Really, a minute? That’s all?” Asmodeus strode into the room and shook his head. “Poor ___.”
“Wh-hey! Y’know that’s not what I meant!” Mammon protested.
“Enough shouting,” Lucifer hissed as he joined his brothers in your room.
Your face turned red and Mammon finally swung his leg over the bed and got off of you. His hand still lingered on your slightly exposed stomach. He didn’t intend to leave without seeing more of you that night.
His brothers knew this and they had every intention to stop it.
“You guys—“ Mammon tried to protest.
“Is he awake?” Luke asked nearing the room.
“Ah, shit,” Mammon mumbled and you both straightened out your clothes and sat up straight as Luke walked in holding a small cake.
“I made an Angel Cloud cake! For your recovery!” Luke smiled excitedly and handed it to you.
“Ah sweet, looks good,” Mammon commented and from behind Lucifer, Beelzebub nodded slowly, drool running down his chin.
“Let’s split it,” you said turning to Mammon.
His eyes lit up. “Really?” You nodded and fed him a piece from your fork.
“Wh-huh?” Luke blurted in surprise at the affectionate display.
“Okay Luke, they liked your cake, see? Let’s go back home now shall we?” Simeon suggested and pulled Luke out of the room.
“Hey—wait!” Luke protested, but it was too late.
Raphael glared at Mammon and Mammon hid behind you in fear but disguised this as hugging you from behind.
Volcanoes were nothing but a glare from Raphael had him using you as a shield. He was incorrigible. But he was yours and that would never change.
After an hour of banter and talking between you and the brothers they finally left. Each gave Mammon a steely look before leaving and when Satan left last, he slammed the door shut, well aware of Mammon’s intentions.
Mammon ran to the door to lock it and sighed in relief that you were finally alone again.
He turned around to look back at you and grinned playfully, “So…still up for some fun?” He suggested and you laughed and nodded.
“With you? Always.”
Mammon did not separate from you until the early hours of the following morning, and after his actions that day you spent most of your nights this way.
Mammon would eventually find out that Solomon’s vial had saved you but he successfully “redeemed” himself when the vial turned out to be deadly too and another cure was needed. Solomon was kicked to the doghouse again, and Mammon, without too much complaint from his brothers, deservedly got you to himself once again.
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