[recipient he/him, creature they/he. Spooky Season prompt - please feel free to do whatever you want with this idea!] - imagine that i've performed a ritual to summon some supernatural companion; the text of the summoning language isn't clear on who it is and what they do, because the specific word for the kind of creature it is a triple entendre for king, lover, and something i don't recognize. i perform the ritual and nothing happens, seemingly. only i realize as the days go by i'm being hunted by something - or someone. they're cloaked by shadow, bigger and stronger than i can comprehend, and are testing the waters by caressing my skin when they think i'm asleep. as the nights go by i start to reciprocate, curiosity balancing out my raging hard on, but nothing seems to progress past heavy petting. the night his patience runs thin, they eventually wrestle me (willingly) into a breeding press, their throbbing heavy cock filling my cunt like it was tailor made to fit into me. it's in that moment that i realize the third meaning of my visitor's title; Sire. they've found me a suitable lover, fit to rule by his side, and he now claims me as a worthy vessel for his progeny. i take it and beg for more, infernal heat coursing through my veins where we're joined; they grin and laugh, speaking to me for the first time to promise that i'll look like i'm 3 months along by the time he's done with me.
It's been three nights since your failed ritual, and you're still angry at yourself.
What could have possibly gone wrong? You completed all of the runes, prepared the circle with utmost care, and you know for a fact that your pronunciation was relatively clear. Sure, you were working with an old grimoire written in an equally old tongue, but you're a scholar, damn it! You don't just cast magic willy-nilly!
You aimed to summon a creature as a companion, an intelligent magical being to bolster your power, and its secondary attributes meant little to you as long as it fulfilled its purpose. The spell mentioned a word which meant both 'king' (which you felt indicated your power over it) and 'lover' (which you interpreted to mean that it would be under your care); there might be other old meanings to the word, but they hardly mattered. All you needed to do was conjure up the creature and secure its loyalty, and you could have claimed complete success.
You're so angry at yourself that you barely even notice the shadow at the corner of your vision, and when you finally turn in that direction, it's already gone.
Four days pass, then five. You keep sensing a shadow that you can never quite focus on, a large and imposing phantom that leaves the skin at the back of your neck prickling, but it never interacts with you. You can't help but wonder if something did something come through the failed rift from one of the hellish planes.
On the sixth night, you finally make contact, but not in the way you expect.
You're laying in bed, sorting through your mental library for the possible identity of your intruder with your eyes closed as you breathe steadily. It takes all of your willpower not to stiffen when something lands against the bedcover, an unexpected weight that slowly, carefully climbs its way up your leg. The touch pauses at your hip before vanishing, and the sudden loss makes you feel… strange.
On the seventh night, your assailant returns, only this time their fingers grow bolder. Their hand slides under the sheet to curl over the front of your groin, lightly inspecting the warmth of your mound and teasing between your legs. You have no idea who this is or what they want, but the attention leaves you wet and throbbing in a way you haven't felt in ages.
You nearly let your thighs fall apart to welcome them in when the touch disappears yet again, leaving you achingly hard and frustrated beyond measure.
For three more days you receive these nocturnal visitations. By the next, the very thought of bed leaves slick dripping down the inside of your thighs, and you feel like you just might go mad if whatever-it-is doesn't fucking touch you. You can't jerk off when your stalker is always around, watching you, but you can't go on feeling like you're about to explode from lust, either.
So that night you forgo your usual sleepwear and crawl under your covers naked as the day you were born.
There's nothing subtle or careful about the invisible touch this time as it boldly slides up your leg and almost possessively between your legs. You cry out, rocking up against those unseen fingers as they hook into your cunt and flick purposefully over your raging hard-on. A few beams of moonlight flood the room from your bedroom window but fail to reveal the identity of your shadowy intruder, though you find it very hard to care when they're making your eyes roll back in your head.
But before you can tumble over the edge of your first climax, someone is on top of you.
They're big and impossibly strong, their weight easily pinning you in place as they yank your legs up and back, exposing your cunt to view. You flail at them, instinctively searching for something to latch on to, but your hands pass through their shadowed form like so much air. Something hard and thick rubs purposefully over your entrance, the blunt head dragging against your sopping, lust-swollen lips and your own straining arousal, before plunging inside of you in one purposeful thrust.
You cry out, feeling them fill you up like their cock was custom-made for your body. You're babbling, begging to see them, for more, for them to take you harder--
The word appears unbidden in your head, the last piece of the puzzle falling into place. Oh, how badly you'd interpreted that spell! You'd summoned yourself not an infernal servant but a mate, and a noble one at that. Fucking them would seal the binds that link you together and leave you as their lover, co-ruler over whatever plane they call home, and provide them with a fertile womb to bear their heirs. Namely, yours.
You shouldn't want any of that, but in this moment, you do.
"Please," you cry out, your hips bucking up to meet theirs with wild abandon. "Oh please, please take me! Please make me yours! Give me your seed and breed me!"
A sudden rush of infernal heat fills your cunt as they give you what you want. Abyssal magic winds you in its clutches and courses through your veins as your ill-begotten spell finds its inevitable conclusion, and reality itself seems to shatter as you're yanked into one of the most intense orgasms of your life.
In that moment, their shadowy cloak falls away.
Dark, smokey laughter fills your mind as they lean closer, glowing blue eyes fixed on your face as moonlight catches on sharp fangs, long pointed ears, and the curves of majestically clawed wings. The sound curls around your consciousness like a sensual caress and leaves you shivering. "Oh, I shall," the incubus purrs, his full lips curling in a wicked smile. "By the time I'm done with you, you'll already look about three months along with my first broad. The first of many, hmm, my sweet?"
(A Spooky Season response.)