FSE

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Your demon friend has definitely grown to liking you, or at least you hope they do. You've been playing with them for a good week or so, bringing them out as soon as the sun was past the horizon and letting them have their fun before you took control. Without sleep paralysis-or whatever immobility kept you down but not your dick-holding you away, you couldn't help but show your desires to them in the form of some raw butt-fucking. A few times, you would give that mouth a try and find that slowly you were being accustomed to its inviting depths. Which was enough to warrant you holding the demon's head still while you fucked their throat open.

Despite your new forceful tendencies, the creature never seemed to give a displeasure, pardon when you grew lax to your concern of when the sun rose and didn't let them leave. Though you've been trying to let them stay around even during the morning but even you could tell that just being out during the day was agony for them. So understandably, you let them go when you were sure they couldn't go on.

Even with that drawback to having the best partner for sex you've had to date, you couldn't help but love every hour you spent taming that black body; to feel the powerful suction of that throat tending to your flesh with care while you pounded that featureless face in; to get lost in the grip of those rectal walls as you were milked for every drop in that black back door; and to feel like something akin to royalty whenever they started the nights of raw lust with licking over your body like you were precious to them. You've come to have no fear for what the creature was capable of, embracing them like a long-lost friend with benefits before indulging in their body like one would a fleshlight.

You were so thankful for their consistency that tonight you just spent the time you had with them holding them in your arms. You knew they would grow impatient and get to work themselves, so you made sure you let everything out while you still had time.

"I love this, you know?" The demon's half-hearted struggling came to a pause and they cocked their head to the side like a confused canine. "You're like, everything I need in a guy. If you are one. You don't complain about how big I am, you don't complain about my stamina-hell you've been building it up even. I don't even know how to keep thanking you other than more, so I'm open to suggestions."

You hoped none of that was against some contract that you signed when you started summoning this demon on the daily, but you were not greeted with a blazing inferno that left you in a screaming terror of charred flesh and bone; instead, the demon found their way out of your grip and crawled off the bed, coming to a standstill near your bedroom dresser and seemingly taking interest in your wallet. Now it was your turn to be confused, even more so when they seemed to have trouble opening it up so they could show you what they were trying to say. Monetary currency wasn't the intent-thankfully-so you didn't have to worry about them eating your rent money thinking it were leaves before it dumped a card out. Your ID.

The gears twisted in your head noticeably slower, but once they started pawing at it like a cat that wanted food, it hit you. The demon wanted a name. Must not have one despite being classified as such and clearly not a pawn that you see in crude movies or written in books. An entirely new breed that you get to crafty an identity for. All sorts of names came to mind, from something cool like Drayko, or Ignis or something as silly as George. But in the sea of bad suggestions that the creature didn't react to once you uttered them out, one name began to give itself power in your mind until it could no longer be ignored by your comical attempts at naming a demon.

"Hexis?" They paused again, you more than likely expecting them to reject the name with a growl but all they did was bow their head towards you. Acceptance? "You like Hexis?" They did the bow again, which you realized was them nodding, and you smiled in good will. "Alright, guess I can call you Hexis."

The newly christened Hexis was seemingly ecstatic that they were no longer a blank slate of identity, abandoning your personal belongings and retaking their place on top of you. Their body was vibrating, like a cat purring in delight or a dragon murring in content, so you couldn't help but feel like a parent in high spirits for their young as you stroked their back.

Though you could tell it was time to drop the formalities and get back to business. You summoned Hexis to screw them until dawn and you were gonna do just that. You were hard as a diamond before they even reached over to play with your dick, sticking out from between your legs like a log of ground beef and looking mighty thick since Hexis couldn't wrap their fingers around it fully. You were proud of your endowment, always have been but even more so as its performance has nailed you the most persistent partner that you never knew you always wanted, though you would tell that toying with forces you've never even dreamed of before has given it something of a growth spurt.

It definitely felt heavier whenever you got worked into a semi during the day thinking about what you were doing later that night, and your loads were getting more and more drawn out with more seed to accommodate that almost mind-numbing pleasure that came with creaming this demon of yours. Perhaps Hexis was bringing you to your sexual prime with every night of you plowing their holes like a two-way fleshlight.

Either way, you were brought back to earth once Hexis took you into that cavern of a maw, groaning in that initial delight that slowly blended into husky arousal as you laid back and let Hexis have their fun. You didn't need to hold them still so you could show them how you wanted your dick sucked-the time you've spent with them was more than enough for them to learn that you liked things done firmly. And so, the suction that befell your dick was what got you to pull Hexis' lower body towards your head and let it hang over you.

That smooth crotch was like a stepping stone towards looking at that taut-looking butt, your hands instinctively parting those cheeks so you could look at that black hole that's swallowed your cock into its depths with a practiced efficiency. No matter how many times you left it yawning, Hexis' ass was always tight. Not virgin, mind you. Lest you want to know what it's like being unable to push through someone's closed fist. Since they were busy getting your dick up to that point on the edge, you felt it was necessary to reciprocate some feelings back.

Your tongue gave a test lick to that taint and the demon noticeably paused, staring up from your crotch and watching you with their lack of eyes as you slowly got into the groove of savoring the taste of their ass. Sweat was the first flavor you collected, tinged with the generic scent that came with perspiration that wasn't caused by stress and bringing about a liking to your taste buds. Huh, you should eat ass more often. Keeping those cheeks apart, you dove in with more confidence, letting your snout sniff into that pucker while you cleansed the crevice and left your saliva behind. Within time, all you could do was taste what you could have inside that hole if you explored it and Hexis had decided to let you do your thing while they got back to throating your cock without a care in the world that you were bulging the entirety of their neck out.

You could feel your nuts start prepping a load, shooting precum into Hexis' gut directly and stirring up that need to release in both you and them as the creature brought themselves off the base of your crotch and got back to bobbing their head like a fishing lure. The contractions that held you still within that maw were the kind of pressure that you wished you had experienced in the past. So many failed dates because you met someone with average control of their muscles, but those days were over. All you need is Hexis and they were always ready to prove that they can never been worn out and beyond use with their inability to choke or resist an intruder.

Speaking of intruders, the pleasure of being sucked off granted you the bravado of sticking your tongue up into Hexis' hole, getting rewarded with a growl that vibrated the entirety of your dick and leaving you moaning into their ass before you could even start tasting it. And taste it you did, slurping up whatever you came across and noting the clean area to work around with. Oddly enough, you could feel what was unmistakably a prostate inside of Hexis' butt, confused at its presence despite the lack of a penis to use it with but decided that maybe it had a purpose other than existing. So since you could reach it and apply pressure without being too hard pressed against that hole, you gave it a go.

Hexis suddenly screeched into your cock, throat going into a spasm as you hit what could be a pleasure point for anyone else normal, and bringing you to a rather sporadic climax that left your shots spray out or hose down Hexis' gut. Your dick felt like it was being choked in the confines of the demon's maw, almost painful to you since the pleasure was just so much to handle and only when you found you could move your tongue did you remove it so you could breathe.

"H-holy shit...." It felt like you were only getting started with blowing loads, and that was a good thing. Usually it felt like you unloaded the entirety of one nut on the first go before you shot the rest of the other over the course of the night, but now you could tell that Hexis was really bringing out your best in a bedroom situation.

Or, living room in this case.

"Remind me to play with that some more...huh?" You took notice that Hexis was doubled over as if they were in pain, hands covering their crotch like one would after being recently assaulted there. This brought worry to you, and you did the honors of slipping your stiff cock out of the demon's maw before getting on your knees and checking them. "You okay? I didn't strike something serious, did I?"

The creature's meek growl didn't sound too reassuring, so you looked over it again. Their butt didn't look damaged from your abrupt departure from it, and it was glistening with a spitshine in fact. You only toyed with its mouth but Hexis hadn't made any noises of discomfort when you removed yourself from their throat. Which left you wondering if you triggered something in them that caused them great suffering. Oh you hoped that that actually had been a prostate or something similar because you wouldn't want your first brush at ass-eating be the reason why you don't do it anymo-

Hexis had a cock now.

You had reached in to try and move those hands out of the way, and in doing so you saw that Hexis had actual junk to fondle and dangle between their legs. Or his, since now he had a discernible gender that you could understand right off the bat. His balls were sizable enough not be below average too, packing weight but not enough to be considered pent up. Hexis looked to you, as if ashamed that you discovered that he had been hiding his natural gender being tucked away from view for so long, but all you did was give it a nudge and watched that black shaft erect almost immediately.

"Well...it definitely works. Doesn't change too much but at least I know if you're really having fun." Hexis seemed to relax with that answer so you decided that this intermission was more than enough of a break to recuperate and get on with things. Hexis crawled away from you, situating his form on the armrest of the couch and keeping his ass raised high. Just as you vocalized you wanted it when you stopped getting stuck in sleep paralysis and got to work that ass yourself. The position kept his ass parted, so you could make out that shiny hole winking at you before you got up to go greet it. You were beyond just going at Hexis from behind-especially now that you had a feeling you had to reprove yourself of being worthy of the demon's constant attention with his sudden shift in sexual organs-so you mounted that lithe body and felt yourself really pin Hexis to your couch. Your dick was magnetized to that pucker, so you slipped inside without much worry of missing.

The new angle must be new for Hexis, because while he was normally quiet about taking you inside of his ass, he was screeching anew. Kind of like someone would be screaming 'too big, pull out!'. But you stayed inside, determined to have the demon relax with you still impaling him on your cock and letting him feel the full girth of your battering ram of meat. The decibels of his noises came to a calm before you suddenly had the outlandish urge to silence him with your fingers a minute later, those walls clamped shut around your shaft but caving away once you started pulling back. You didn't need a pace; your thrusts needed no rhythm to keep someone like Hexis pleased and it showed as each reinsertion of your dick into that hungry ass made it clench down but ease up to let you do it again.

You were feeling powerful like this, like you were going to do a lot more than just leave Hexis' innards drowning in your nut like you've been doing this week and so on. Your hips were pounding into that butt with a ferocity you didn't know you had in you and you could feel your own balls knock up against Hexis' own. They felt like diminutive grapes compared to your fully grown melons and you took a bit of pride in being able to grind your crotch in a manner where you rubbed your sack against your demon's.

Hexis' screeching came to a gargled choke as you went on, his arms going slack and unintentionally inviting you to grip them into your hands so you would keep them right where you wanted them while that black ass was left with a faint shade of red from your thrusts. You were relentless, ignoring those cries coming out of that terrifying maw as you pummeled your way through those walls and into Hexis' stomach. You may not see it, but the abdominal bulge you were stuffing in and out of that lanky form was so obvious it was laughable. No amount of cum could hide your dick from jutting out from that black mid section and Hexis was doing nothing to stop you. He wanted this, even if the ambiguous signals of his screeching provided a fenced decision as to whether you were doing a good or bad job with fucking him so roughly, and as you neared a climax that felt like a geyser preparing to burst you knew you wanted to see this to the end.

So in the haste of your lust for your demon friend, you bit down into his neck and felt your hips pound forth with a vigor commonly seen in canines. You broke skin, and the odd taste of blood began to taint your tongue, but you merely licked away what oozed out of the wound before you continued without worry. Hexis' yelling came to a quiet rumble and you smelled the scent of fresh salt waft into your nose. He had cum and you didn't even feel him milk your dick while he unloaded onto the couch cushion beneath him. You felt ...offended. Yeah, there was a sense of disappointment in the haze of your carnivorous lust and you bite down harder as a result.

You never knew that you could fuck this hard, but here you were making an even louder *clap clap clap clap clap* than even Hexis' reignited screeching. Demon blood seeped into your mouth but you didn't care, feeling the need to seed become a greater concern than your roommate fast asleep in his bedroom down the hall with the potential to wake up from your noises.

You felt it rush out before you could even moan about it, flooding into Hexis like a tsunami and washing over every inch of his innards in mere seconds. Even though it was a fresh helping, you could still feel the backwash of your climax splash against your crotch and splatter all over Hexis' ass, leaving his black skin soiled in pearly white while you dirtied up his guts with your baby batter. He was as still as a statue but relaxed like a sloth in your grasp and you thought he had perished in your arms, but one weak growl from below confirmed that you hadn't fucked the poor demon into a state of lethargy.

Your lips were tainted black from ingesting life fluids and you departed from keeping Hexis' neck captive in your mouth. The wound you had left behind had healed on its own but you could make out the scarring. Then, your stomach began to erupt in an agony that you thought no mortal should ever experience without warning and collapsed onto Hexis entirely as your guts wrenched in sorrow.

You felt a rushing heat wash around your mind, thinking you were being burnt from the inside-out from yet another evil contract that you didn't know you signed with toying with Hexis so much, but you felt a couple protrusions push out from your head and grow out from your skull as if they had always been there but hid beneath the surface; horns as tall as a third of your arm and as thick as your wrist adorned your head. Your back was subjected to the same treatment, only instead of being focused in one area it spread out into little spines that soon jutted out to line the way down to your tail and leave you looking like a brachiosaurus. Your gut ceased churning in despair in time for the warm feeling to reignite in your head but focusing on your face; your mouth suddenly felt like it had a few occupants too big to fit in it and you soon felt fangs stick out of your mouth from your lower jaw; your nose began to pick up new arrays of smells that you couldn't get a whiff of before even if you were part bloodhound, wafting in the delicate aroma of the blood that you didn't pick up on before-only tasted; and your eyes began to develop a razor-sharp view of everything, except with extra details that you never experienced before.

When the pain was over, you blinked thrice and your body felt like it had calmed to a new height than ever before. You felt energized, alive...and still painstakingly horny. You snarled before you could stop yourself and got your hips working against Hexis without warning. Not like he cared, pushing back against your thrusts while he laid there and took it all. You didn't even get a chance to test out what else the transformation had done to you, sensing that there was something missing inside of the demon's ass and working to shove it in. A thick pressure forced its way against Hexis' hole and soon you were inching it in on instinct like you always did this. A lewd *pop* rang loud enough to be heard throughout the whole house, your roar of bliss unmatched and uncontested for your next load felt like a blast of spunk that soiled anew within your demon toy.

Hexis was getting fatter off your seed, being lifted off the dirtied couch from the gut you were giving to him so mercifully. His legs twitched behind you but you didn't care one bit as your new knot kept it all inside. The euphoria lasted a while, leaving you in a high that could never be disturbed by trivial matters. You hadn't even noticed that your hands had been clawing into Hexis' midriff in the middle of your climax, but again you were drinking in your new power and anatomy with glee to regard it any better than an afterthought.

Seeing as you were still rooted within Hexis however, you had to take in the fact that you felt like a king better than earlier.

"I like this...makes taming you so much more than just a mere exercise..." Your voice had an echo now, as if you and one other who matched your octave but at a baritone rate spoke at the same time no matter when you initiated chatter. And knowing that you were essentially part demon left you feeling mighty all over. "We shall continue when I am free, toy. You have to be made for breeding soon, but I have a score to settle..."

---

Your Great Dane housemate was felled with ease with your new power, caving in to your whim with such a desperate energy that you were almost too disappointed with how easy it was to get him on his knees at your feet and licking your dick clean. Hexis was at your side watching the canine plead for mercy with every fleeting lick to your mighty spire.

You sneered. The other male had been his usual self, denying your claims of having changed into a hybrid and calling you crazy and childish for lying. And you took that as your gateway to put the Dane in his place. Needless to say, exerting your power on a mere mortal gained only little pleasure. No one can top the explicit bliss that Hexis and Hexis alone can provide you. When Jordan struggled to take your dick into his mouth as a means to keep you appeased, you took Hexis' mouth with your lips, kissing where you knew that maw was and sticking your tongue in to accept the thicker but subservient muscle into a dance.

"Pl-please don't kill me ...I'm trying here, you're too ...huge ...!" Jordan's begging was getting annoying, so you departed from sharing a passionate moment with your demon and crammed whatever could fit into the canine's muzzle and throat to shut him up.

"I don't care if I'm too much of a challenge for your sniveling mouth. You better make me cum or I'll have you made into less of a man in a heartbeat." The Dane took pride in his manhood, and he was not one to be denied of his right to breed ladies. So, he gulped down his dignity and tried his best to adapt to the girth of your dick. It was spined now, every third inch having a row of pleasure-inducing protrusions to tease and to entice an orifice into submission up until your new knot made up the rest of your cock. It was fist-thick and Hexis growled in his own language as he reached down to play with that meaty flesh.

You could get used to this.