Prince Asthenar, for all his virtues, was a real challenge. Not for the casual monsterfucker.

<OUR PET IS READY? Let us see.>

He lumbered forth, and I made to stand and get a closer look at his hardware. Ana, and the long-hung hellion with the bright peachy skin, each seized one of my arms and held it tightly. Animalistic excitement radiated from each of them at the prospect of concluding the Rite.

Asthenar planted two feet against my shoulder blades, shoving me forward and pinning me against Kae, who guided me back to their entrance. I felt just a fraction of the Prince's weight, as his spindly legs sought to stabilize him in a mounting position. And it was a lot. My spidey-sense for sexy danger was off the charts now, and he was short on sweet-talk. He simply slid his big, slick, orange and white striated monster of a crabstick along my perineal plate and said,

<A sensible choice of receptive parts. This should not take long.>

His touch did set off surprisingly loud peals of pleasure in the nerve endings of my modified hardware. I might have expected as much from a prince of fuckdemons. And behind the touch, I felt his immense will, laser-focused on this lithe little body offered up for his use.

I turned to Kaesalpinnix. “Any last advice?”

<His angle is high. Lean your body low over mine for ease of entry.>

Right. Face down, ass up, that’s the way we monsterfuck.

The tough tissues around my opening spread easily under pressure, but it wasn’t until he was a couple inches in that I really felt his absurd girth against the flesh that lined my hole. I’d seen dildos in sex shops with these dimensions, but never this shape, and anyway I had a hard time believing anyone bought and successfully used them. No amount of training could prepare human Sheldon for that, but for a transformed demi-demon Sheldon, it felt alright. An intense but not painful sensation of fullness was climbing up the walls of my booty-vag-whatever it was. If I could just keep it pointed straight—

A tremble went through me as the featureless round head of Asthenar’s cock slid past the “exit ramp” that led to my vaginal tract. Such trembling sometimes happened with my default body, where the front hole was a no-go area, physically and psychologically unpleasant and all-around unsexy. But it was different this time. The space dick, and my whole pelvis behind it, quivered. In this configuration, the touch was acceptable, even welcome. Here, there was no sense of disharmony between having a usable cunt (if you could call it that) and being the glorious constellation of masculine queerness that is Sheldon.

I couldn’t possibly use that hole now, but I could give it a little outercourse, as a treat.

<Stop! Let me feel that entry again, my lord, I'm terribly sensitive there. I think it will help me loosen up for you.> With our flesh in contact, I could faintly sense his skepticism. Slowly he pulled out, and I lifted myself up to what seemed like a better angle. I realized the room had gone dead quiet. All eyes were on us three now.

“Take me!” I cried, my desire too visceral not to be voiced aloud.

With a lurch, and with rather less delicacy, Prince Asthenar shoved his mighty cock into me. It slid in smoothly, butted up against the anal opening, and slowly, centimeter by centimeter, it filled up my reptilian ass. But along the way, it put pressure on the front hole. My breath caught as he slowly withdrew; I could feel his gaze on me, awaiting a reaction of some kind.

“More!”

I don’t know what I was thinking, being such a mouthy bottom, but Asthenar, prince of demons, did not seem bothered as he proceeded to put me in my place. My pelvic floor twitched involuntarily with each insertion. I was in my feelings about this one, hungry at heart and suffused with a dizzying sense of rightness.

“Fuck, fuck, fuck,” I muttered to myself.

<You humans, so delightful in your need to vocalize,> said Kaesalpinnix. They’d been content to lie still and support me while I struggled to take the almighty crabstick, and now, sensing that the hardest part was over, they began to move a little—a gentle circular rocking that came not from hips, but from their massive tail. Small movement with compounded consequences. Our external cloacal bits rubbed together; my cock angled this way and that, pressing against their insides one direction or the other; and Asthenar’s questing thrusts, which were out of sync with the rocking, hit slightly different each time. They watched serenely as I made, I assume, lots of weird faces trying to process all of it.

<Yes,> agreed the prince. <Too seldom do we get a human visitor.>

<Are we... ready to wrap this thing up?> I said. With dick this big, it wasn’t just a question of how long I could hold off orgasm, or how long my beleaguered muscles could go; I had no idea the physiological impact of literally rearranging my guts, and then letting the Prince figuratively (I hoped just figuratively) rearrange them.

<The assembly has taken on enough energy, yes,> said Olkayabnothep. Her voice seemed preoccupied, and when I looked around and spotted her in the crowd, I realized she was stroking the receptacle on her forehead with both of her filaments. I kept looking around. The whole assemblage, they weren’t just watching—they were, quietly and without spectacle, all touching themselves.

All manner of thoughts and emotions flitted over the surface of my mind—shock, indignance, humiliation, performance anxiety, intellectual distraction—but I shut out most of it, letting in only fear and arousal, letting them flow through me and into my raging cock and trembling, aching holes. In this confusion I needed the simplest thing, I needed for the Prince of fuckdemons to fuck me to completion—but whose completion?

<You must let that go,> said Kaesalpinnix. They were stroking their big furry horn of a cock now, too.

<Let what go?>

<Distinction impedes the release of energy. We are demonkind. There is no self, no other, when pleasure is in motion. Open your being to it. Have faith in it.> My human eyes and Kae’s ursine eyes locked, and I realized this was not only a suggestion, but a prayer of sorts as well.

“Okay,” I said with gritted teeth, “I’ll try.”

Behind closed eyelids, I could visualize the swirling vortex of eroticised fear. Well and good, but meaningless by itself. Motes of pleasure were all around, but weren’t flowing freely. I breathed, as slowly and deliberately as I could whilst getting railed, and directed the chesed, the lovingkindness within that breath down along my airways and spine, to my pelvis. There was far too much sensory input to share space in my brain with these thoughts. So, fuck thought. I attuned my consciousness to sensation and let it wash over me.

Sheldon was being subducted. The whims of pleasure arose and spoke. Raise your butt like so, thrust yourself into Kae like so, say the words, say the fucking words, say them out loud...

“I’m gonna come! I’m gonna come! AIEEEEEEEEEEE—”

Infinitesimally thin fingers of red lightning flickered out of me, fanning into the crowd. I shot a huge load of cum into Kaesalpinnix, but I also let out a brief gush of thin liquid from around my lizard vag that dribbled down the Prince’s cock. Immediately I felt a lustful rage arise in both of them. Asthenar let out an obscene bellow. I couldn’t have said for the life of me whether it was in my head or out loud. But thick, hot jizz flooded my ass and mingled with the fluids already dripping from where he and I met, out onto the ground. The others in the crowd began to shoot, whatever their particular body produced, their gaze locked onto me and Kae. Spunk and ichor splashed off my naked form and onto the floor.

Unfathomable energies suffused me as Kae and the Prince withdrew. The transformations melted away, but the transcendent feeling of rightness did not. My flesh began to glow. I was this form; I was not this form. I was Sheldon the human; I was Sheldon the more-than-human. I was a queer man with queer parts; I was every man, woman and animal, every slouching thing in the dark, every thing that preyed upon... what?

No!

Not prey. I was symbiotic and loving to all conscious life. I sipped the residue of their pain—no, their pleasure!—okay, both, if the situation called for it. I wanted—I wanted—

—I wanted the worlds to serve me, or else end, in shadow and flame and suffering—

No!

I wanted the worlds to grow, and come together, and joyously build and talk and love, in colossal floating cities filled with light.

I was too vast for this skin to contain. But I’d find a way, just like I had for the last two and a half decades.

My eyes opened, this time to the concrete here and now, where my mind and body were fine but something was very wrong. I was flat on my back on the pink smooth infinite floor of the Realm. Ana and the triumvirate all seemed to have one concerned eye on me, and one or more agitated eyes on each other.

<—No chance of that,> Ana was saying. <I have known him for two years, I would know if—>

<—But that leaves only one possibility,> the Prince cut in, <that—>

“Guys! Guys! My head hurts, and there’s a voice whispering terrible things—I AM THE LIGHT AND THE DARK, THE SIN AND THE SALVATION—What the fuck?!”

The words had tumbled out of me as if I were vomiting them, from no evident source.

Ana’s usual placid expression evaporated, eyes wide as they threw up all seven of their arms. Their voice in my head was deafening this time. <TROUBLE IS COMING! DISPERSE, EVERYBODY DISPERSE!>

The assemblage was a blur of activity, whether in panic or in well-orchestrated chaos I could not say for sure.

<Zdrak,> said the Prince, <Get him out of here.>

<Not me. I must meet with an intelligence contact right away! Olkaya, take him through... here.> Their head bobbed pacifically, and a circular slice of air whirled away revealing starry night. The butthole back to Ithaca.

All around us, shadowy figures began to fade and flicker into existence, dozens of contorted and corrupted insectoid shapes large and small. I had the distinct sensation of eyes upon me, of a dark, rank consciousness that made the Prince seem like a fucking ray of sunshine by comparison.

<WITH ME, SHELDON HUMAN!>

I was expecting her to lift me up and toss me. Instead, she flipped through the air in a blur of motion, seeming to grow in the process, and came down on me like a diving bell in an acid trip. Then her arms grabbed me, her skirt pulled tight around my ankles, and we lurched into the void like a roller coaster car yanked onto a chain lift.

"WE ARE COMING!" The words poured from my mouth despite my best efforts. "ACHTUNG! LASCIATE OGNE SPERANZA! WE ARE THE DARK THAT FEED UPON THE LIV—"

Olkayabnothep’s chitinous beak conked me on the head. Everything went black.

***

Olkaya?

...

Yes.

...

I can’t see. Where am I?

...

On the grass outside the laboratory.

...

What just happened? Why did I say those things?

...

We were invaded. In the process, a shadow passed over you, while your mind was open and awash with psychic energy. It was but a small thing, made enormous by the power and placement of the light source. Nothing more than a shadow.

...

Am I... okay?

...

You are. Or you will be, when you wake.

...

No, something’s not right, it is in me still. I can still feel the burning. I will burst into flame!

...

Nonsense. That is simply how it feels to molt for the first time. Soon you shed your skin, and rise again refreshed.

...

But—

Hush. Answers will come.