The once normal tokyo student turned Demon Slayer, their real name unimportant to all, now only seen as the weapon that infused a human soul with that of a gods, commonly known as a “Nahobino'' stands in the ruins of the real tokyo, now known as Da’at. Da’at was ravaged by the destruction the forces of Chaos have brought, the land purged of the Abrahamic God’s protection, now that he’s been killed by Lucifer himself.
The Nahobino walks through a collapsed building, what seems like a defunct shopping mart, judging by the various rotten food bags the local Jack gang were pilliging, like the childish psychopaths they are. He had started investigating the area, as he was informed by his other half, the god inside him, Aogami, that there was a peculiar demon reading here that he didn’t recognise, and asked “Young Man” to inspect, to see if this new reading was something dangerous that needed to be squashed.
But, when he reached the source of the reading, it was something he never expected.
The Nahabino found that the source of the demon was inside a broken down manager's office, behind a rusty, but still functioning door.
He readied his handblade, made of light, and slowly opened the door, only to find nothing but a dusty deck and a long defunct computer.
He consulted with Aogami, unsure of what to do.
“Young man, do not be alarmed, but the signal is coming from beneath us”
Dammit! Another typical demon trap, he’s trapped himself in this tiny room with little room to maneuver, he might be done for. The Nahabino breathed in and readied himself, but nothing happened.
“Hey, down here you giant witch angel slayer wannabe!”
A bratty voice rings throughout the Nahabino’s head.
He soon realizes where the actual source of both the voice and demon is, and takes a seat on the dirty floor, raising his boots heels inwards to him, only to find a squished tiny Pixie demon, facefirst into his skin tight suit’s feet.
“Ugh, finally you’re off of me! I was starting to wonder if you’d just let those gross shoes of yours crush me there. Don’t you ever clean that sand of-”
The pixie looks up and down at the giant young man, realizing the fabled nahabino that she heard returned, is sitting right in front of her, while she talks smack.
“Oh my, it seems like I’ve made a mistake..
I know who you are!”
“You’re that guy who saved those students right? How cool!”
While the pixie praises him, the boy consults with Aogami.
“Young man, I apologize, but it seems my calculations made a rare mistake. It appears that some demons are of rather.. unnaturally small size compared to their same race kin. If one demon type can be tinier, does that mean one can be bigger? A strange thought, we should bring this one for studying, to learn and prepare for more dangerous abnormal signals.”
“I want to keep her safe.”
“Oh? Very well young man, I am but your advisor, you are free to do what you want.
But please, keep her somewhere she can’t cause trouble at least.”
“Yes Aogami.”
“Thank you, young man.”
The pixie grows annoyed.
“Hey, are you even listening to me? I’m giving you a compliment y’know. Probably don’t get many of those, if you act like this.”
“I want you to be my demon”
“Ehh? Are you serious? You just ignored me for a whole minute and you open up with THAT?
Hopeless with girls too it seems..
What kinda thing do you want with a demon like me anyway?” “I’m not exactly very powerful you know”
“Oh whatever, I’ll know you’ll probably just fuse me away, at least some part of me will lead to something bigger that way. Give me some Macca and life gems and we’ll form a contract”
Some unnecessarily large amounts of macca given away later..
“Hey silly boy, you don’t got enough room in your stock for me, better get some extra room in there or else I’m leaving, what awful hospitality!”
“No, I got just the right spot for you, right here..”
The long haired boy grabs the tiny pixie with his full grip and pulls back the neck of his suit, the sweat accumulated throughout the day of training himself and searching for dangerous demons, the smell overwhelming the pixie with the gross humid stench.
“You’ve got to be kidding me, someone help!” The pixie fruitlessly cried, her tiny vocal cords reaching no one but her new contract. The boy hovered the girl over the hole, dropped her in and snapped back the suit, placing her right at his chest, in between the small mounds of flesh that bulged out.
A voice boomed out from outside the pixies vision.
“And with that, our contract is sealed.”
It was dark, pitch black dark. The mostly black skin tight suit blocked all light from entering. The pixie couldn’t see anything, but she could hear a lot.
She could hear the boy panting, the boy running across the destroyed shop floor, making sure to kill or recruit any demons that came his way. It seemed he really could have just thrown away another demon or fuse, like he’s doing right now, but for some reason he just, didn’t.
This puzzled the girl, unable to understand just why he decided to do this to her. The sweat he generated building up all around her, the smell of his boyish body filling her lungs.
Despite being a completely different species, as a pixie, it seems she’s still able to experience a form of intoxication from human pheromones.
She could hear the boy stop running, likely escaped from the shopping hell, and sit down on something, most likely on a centuries old rock, judging by the local area being nothing but a desert once you escape the ruins of a lived in city.
The boy's heart was pumping fast.
Of course it would be pumping fast after all that exercise, and fighting in multiple life or death situations every day, but the pixie had a gut feeling that there was something more..
She figured it out.
This dashing young man had a crush on her! How interesting, she had gone on a few dates with the local Mara in town whenever they showed up, but never had she gone with a human!
Her thoughts of what a human-demon relationship could ever be like, especially with one as tiny as her, was interrupted by a sweat drop landing right on top of her, slickening her up just enough to start sliding down the man’s soft, almost feminine body, past the chest area, slowly down the stomach, and onto something she had become very intimate with before, albeit with something else, much harder, and well..
Bigger.
The “Full moon” began to set in, the young man relaxing, watching the demons far away get even more insane, as usual for the full moon event. As Aogami silently judged in disappointment, the man was surprised by a sudden wet feeling on his member, and realized in lewd amusement of what was happening.
She couldn’t handle it anymore, even if he wasn’t as big as Mara, or hard, she can’t help but admit, the boy was cute~
And Mara could never get as soft skin as this!
Covered in sweat, the pixie pulled back the boy’s skin covering her prize, the wondrous, hot penis tip. She wrapped her arms around the tip, her face deep in the tips flesh, inhaling his scent, before using her wings to fly up and down his cock, slowly getting erect from the stimulation of her soft gentle arms.
The boy quietly moaned, enjoying his new contract. Unable to take off his clothes in this hostile setting, he carefully rubs his nipples that are bulging from his suit, much like his growing erection.
The Pixie had completely surrendered herself to the pheromones, face deep in his tip, kissing away, horny, and now eager for more.
She flys up to the tip, and starts licking away at the entrance to the long dark shaft, unaware that the horny demigod was eager for more as well.
He pressed in on the bulge through his skin tight suit, pushing her just big enough body inside his urethra.
She struggled. But not out of fear, out of pleasure, eager to serve her new contract, her body constricted, her wings completely smushed together inside the humid, pulsating, fleshy walls.
She kept sliding further and further down inside, touching herself all the way inside, until she fell out of the tight shaft, into an even darker place, facefirst into a dark, disgusting swamp of cum.
She masturbated faster and faster, jiggling the balls and providing extra stimulation to the man from inside him, his nipples fully erect, until finally, a “geyser” erupted, forcing the cumming pixie outside, into a sticky goo stained into the man’s suit, still getting bursts thrown at her for a few seconds.
The full moon disappears, and with it, the new moon takes its place.
With the forceful evacuation of the pixie finished, the blushing Nahabino reaches inside his suit, all the way down to his member, touching the sticky mess, and plucking the tiny girl from inside.
He doesn’t even give her a chance to speak before sucking on her like a candy, rolling her around his tongue, cleaning her of any residue, then spitting her out onto his hand.
The girl, dazed and feeling the aftereffects of multiple things, one including the full moon effect, just lays there and looks up at him.
“Yeah, you’re my new favorite Demon.”
The boy smugly muttered, a stray Mokoi in the distance looking rather saddened without their owner.
“Let’s form the actual contract now.”
The demon nodded and kissed away at his hand, the two forming a special bond that never broke.
She was always close, giving him support and love every step of the journey, out of sight, out of mind to all but her owner.