Summary: Eren Yeager, wizard, discovers that in order for him to use demonic magic, he needs to swap spit with a demon. But spit isn't the only thing that works, and he's not complaining.
Pairing: Levi(top) x Eren(bottom)
Genre: Humor, romance, adventure
My Demon Deals in Sin
A ball of fire exploded on impact, illuminating the dark clearing and its surrounding trees. Retracting his glowing hand, Eren dashed to the center and turned to face the angry mob of shrieking goblins scampering after him with raised axes and spears.
"Oi, why the fuck are you stopping where they can surround you?" Levi asked from above.
Eren scowled up at the demon who was idly flapping large, leathery wings several meters in the air. "To fight them, obviously. Not everyone has wings they can use to conveniently fly away." He threw his hand high toward the night sky and, with a downward sweep, called upon a hail of fire. The goblins' shrieks rose in volume as their comrades were shot down by flames, but more rushed out from the forest to replace the fallen. "I presume you're not going to help?"
"Think of it as practice. Demonic fire magic only."
The wizard groaned and ruffled his messy brown locks in frustration. "It would be so much faster if I just buried or froze them." He dodged an axe flung his way and slammed his sneakered foot into a hideous face before the goblin could claw his side and tear his favorite t-shirt. In one fluid motion, Eren unsheathed the wicked short sword harnessed to his back and lopped the head off a larger goblin. Warm blood the color of charcoal splattered across his face and torso, ruining the shirt anyway. Bummer.
From the corner of his left eye, Eren could make out the demon lounging in the air, picking under his nails with a bored expression as if there wasn't a fierce battle taking place below. "If you're just going to watch—or not watch I guess," the wizard corrected when Levi didn't spare a glance, "at least give me some light so I can see the little buggers." No response. "…Or not, asshole."
Eren drew a deep breath, held it in his chest for two seconds to mix with demon magic, and blew out a powerful stream of fire, bulldozing into the horde of half-naked, somewhat-humanoid creatures. He thought it had bought him some time to prepare a larger attack, but he suddenly heard the whistling of an arrow cutting through air and barely ducked in time to avoid getting impaled.
Eren groaned. The fuckers brought archers! He was fully surrounded now, slashing and hacking his snarling attackers expertly, but for every goblin he cut down, two more replaced it.
"Jeez, all I did was accidentally blow up one of their caves." Eren channeled fire into his sword and carved into a body. "They have hundreds of them! There's no reason to freak out."
"Idiot, you blew up their storage cell and liquefied half of their gold," Levi pointed out.
"Don't they know-" Eren grumbled and dodged an arrow, "not to keep all their eggs in one basket?" More arrows fell upon him, slashing his right arm and left thigh. Aww, he liked those jeans too.
The wizard began chanting under his breath as he stabbed through two goblin chests with one forceful thrust of the sword and then used the mass like a club to bash one more into the ground.
As he kicked off the two dead goblins, Eren flung his hand in front of him, open-palmed, and shouted the last syllable of the incantation. A pulse of energy exploded outwards, shoving the goblins back several steps. A few even toppled over as their legs were swept out from under them.
A moment later, the second stage of the spell initiated to materialize a circular wall of fire around Eren, twisting and howling angrily like a tornado. The twister expanded in diameter as he pumped more magic into the attack, tossing goblins into the air and torching them with ease.
"Watch it, brat! You almost singed my wings," Levi snapped, beating his wings to cool them down. "It's not supposed to look like the Leaning Tower of Pisa."
"You only taught me this move yesterday!" Eren pouted and defended in a strained voice. "I can't help that it wants to be slanted. Demon magic isn't exactly friendly, you know."
The pungent stench of burnt flesh filled the air as the twister died down to small flames scattered here and there. The goblins were now hesitating at the edge of the clearing, chittering amongst themselves in hushed tones and not so enthusiastic now that dozens of their comrades had been wiped out in less than 15 minutes.
Taking advantage of the lull in attacks, Eren passed his sword to his left hand and formed the shape of a gun with his right, the thumb pointing up and the index and middle fingers extending forward. He took aim and shot 6 compressed bursts of fire magic from the tips of his two fingers in quick succession, straight at the goblin archers crouched in the trees. Six thuds of bodies hitting the hard ground were heard clearly by all as the goblins fell silent.
"Guys, I'm really, really sorry about the gold," Eren called out. "…And your friends," he added as an afterthought, raising his hands in a placating manner. Realizing that waving a bloody sword around wasn't helping his plea for peace, he sheathed it immediately and tried to lighten up his grimace.
Receiving no response, Eren groaned and repeated his words in broken Goblinese. He flushed in embarrassment when Levi snickered from somewhere above.
"Shut it!" Eren hissed under his breath, "I know my accent is shit." This was exactly the reason he avoided using the language.
Across the clearing, the chittering resumed, growing angrier and louder by the second. Shit shit shit shit, Eren thought frantically as the voices became shrieks. He only had enough demon mana for one more mid-scale attack, but Levi would not be pleased if he disobeyed and drew on his natural magic. He would rather fist fight with a mob of angry goblins than incur the demon's ire.
"Halt! What if me gives, um-," Eren cut off his grammatically atrocious goblin-speak to open and rifle through his messenger bag. The bag was spelled to hold much more than its outer appearance, but because it could fit so much, he tended to accumulate junk. A lot of junk. Good thing Levi never looked inside.
"Aha! Me gives you, uh…sparkle rocks of big dragon."
More snickers, louder this time, could be heard from the demon. Eren gritted his teeth in irritation. So what if his vocabulary was severely limited? It was getting the message across just fine!
The wizard hoisted out a heavy sack twice the size of his messenger bag—thank merlin for magic—and removed a large sapphire and gold necklace from inside. "Me steals it from dragon of Mount Nedley. Dragon very mad. Me gives to you, so now dragon sparkle rocks is belongs to you," Eren explained painstakingly, blundering through the foreign language like a puppy tripping over its first steps.
He could see the goblins craning their necks curiously, trying to get a better look at the jewel without moving closer. Eren tossed it to them and smiled encouragingly.
They immediately crowded around the piece of jewelry, poking at it cautiously with the tip of a spear. Eren lit a small ball of fire over his palm and floated it over to give them light. The goblins flinched in unison at the sight of fire but calmed after seeing that the unmoving flame was not an attack.
It was common knowledge among supernaturals that goblins loathed dragons for having better treasure collections. Goblins were extremely competitive when it came to loot, and losing out to dragons for several millennia was a major stain in their long history.
Under the careful watch of over a dozen pairs of beady eyes, the largest goblin, probably the commander, gingerly lifted the necklace to his face, turning it over and over in his hand to inspect every surface for authenticity. Then he positioned it beneath his hooked nose and took a loud whiff. The goblin recoiled in disgust, but a moment later he thrust the necklace up triumphantly with a loud screech of "dragon!" in their cacophonous language.
The surrounding goblins shrieked their approval, hopping up and down and stomping their feet. A few were even banging their heads on the ground, and Eren wondered if maybe it was brain damage that kept them stupid.
In a graceless scuttle, the leader boldly closed the distance as Eren backed away from the sack of jewels. The goblin yanked the sack open to peer at the mound of treasure collected within. With a disturbingly knotted arm, he rummaged through the precious rocks, stopping every once in a while to examine them.
Making a guttural, satisfied noise in the back of his throat, the goblin gripped the hefty sack firmly and dragged it back to the rest of the goblins that had begun migrating back into the trees. After one last critical look at Eren, the goblins melted into the shadows, leaving him and Levi alone in the clearing.
Eren breathed out a sigh of relief, so very thankful that goblins cared more about pissing off dragons than being pissed at him.
"About fucking time." Levi landed silently next to the wizard and vanished his wings. "When did you rob a dragon?" He asked, amusement coloring his voice.
"Around a decade ago on a drunk dare. Jean and Reiner ganged up on me." Eren grinned. "I held onto it in case I needed to bribe someone."
They slowly made their way through the thick forest, fighting off branches and avoiding nests of hostile, supernatural creatures. "Why can't you just fly us out of here?" Eren asked as he tripped over a gnarled tree root. Levi caught him by the arm and righted him.
"Because you weigh as much as a baby cyclops," the demon replied lazily and shifted to grasp Eren's hand.
The wizard glowered at Levi's back. He did not! He was a healthy weight for a young, 137-year-old male, and it was mostly muscle and a fantastic ass. "If you're going to complain, I'll just find another de- mmf!"
Eren suddenly found himself shoved against a tree and his mouth plundered by a long, hot tongue. He moaned softly as it split in two at the tip to stroke every crevice, taking extra care to fondle the sensitive roof of his mouth.
Eren's body arched as Levi ran hot fingers down his side, lower and lower until the calloused hand dipped inside his jeans to knead his ass. Heat pooled between his legs, hardening his cock in anticipation of the mind-blowing pleasure the demon never failed to give. He wanted Levi's leaking cock to against rub his own so bad, to feel the ridges slide across his sensitive skin. The friction, the heat–
The sensations stopped as abruptly as they started. Eren groaned in disappointment when the demon pulled away with a wicked smirk on his swollen lips.
"Never forget, Eren. You're mine," Levi growled, deep and feral. Grinding a palm hard against the bulge in the brunet's pants, his smirk widened when Eren bucked helplessly. "No one else can touch you. No one else can give you the pleasure I can. Understood?"
The wizard nodded weakly as hot, demonic magic flooded his system, only partially replenishing what had been used in the battle and leaving him wanting more. More of both the rush of power and Levi's sweet torture.
The demon pressed a searing kiss full of dark promise to Eren's lips before grasping his hand again. "Hurry up, let's go home. Your ass needs punishment for that little comment. "
Eren shuddered involuntarily. Oh hell, yes please.
A/N: Does this have potential as a multi-chap fic?