A Gift Horse in the C##k

This may not have been the most wild mission Asuka had been placed in, but it was certainly up there.

As she ran through the cybernetic dungeon, the taimanin agent processed the dilemma she was currently in. A horse demon had made use of the technology from one of the most prolific businesses out there, stealing a massive hall in order to help them overtake the human population. Under his thumb were several creatures with anthropomorphic traits, notably the fact they could stand on their hind legs and their front ones now acted like arms. They were almost human in most appearances, but as Asuka discovered before one of them tried to rape her prior to her blades chopping through his torso, their genitals were most certainly feral.

Asagi had told her there would be days like this, yet she could highly doubt how much truth would be in her stories.

Asuka was trusted with her own robotic hands to take care of this mission, as the other taimanin agents had their hands full at the same time. She knew she could at least be trusted to handle this, as her prosthetic limbs had a secret to them that none of these beasts could handle.

After countless mobs had been cut through with her sharp razor blades hidden in her forearms and calves, Asuka found herself in front of a door no taller than ten feet tall. Either the horse demon ruling over these creatures was very tall, or compensating for his height.

"I'm not waiting a second longer," Asuka said to herself. "It's time to cut my way to the finish!"

Asuka's blades appeared once more, using them to strike at the heavy metal doors that stood between her and the horse demon. The time it took her to form a circular hole to step through was crucial, yet when the metal had shown its wear and tear from her attacks, she reared her fist back for one hard punch, the impact of her robotic knuckles sending it flying several feet into the final room, crushing three or four anthropomorphic minions under its weight.

Stepping through the self-made hole, Asuka slammed her foot down on the door and the creatures underneath it, her fists at her sides as she grinned with a hint of cockiness. "Happy to see me?" she asked the remaining forces of the demon horse.

To which she was met with many feral dicks pointed in her direction, the horny faces of her enemies looking eager to get those shafts sheathed within her. "Oh," Asuka said, beads of sweat forming on her forehead, "Oh yeah, you guys are totally happy to see me." Despite that shock, Asuka cracked her robotic knuckles and said, "Well, I might as well leave you guys smiling before you die."

Asuka leaped up, swinging her arms and legs to strike at the strong forces of creatures, before either their weapons or cocks could hit her. She showed her skills as a taimanin well during the onslaught, painting the cyber floors with the blood of the many beasts.

But there was one that managed to get Asuka from behind, though it wasn't even to lock her in place so that he could penetrate her pussy and claim her as his wench, but rather he merely placed something around her throat. Before she even questioned it, the taimanin drove her blade through his gut, slicing many internal organs before coming out through its back.

Pausing for breath, Asuka looked around at the bloodshed she created, wiping her brow to clean herself of the sweat. It wasn't too tiring, but she had to work fast or she could lose her energy, both physically and in her robotic limbs, leaving her high and dry when she finally fought the main horse demon.

Thus, Asuka shouted, "Hey, horse demon! Come out and fight me already! I've gone through your hordes of minions, the least you could do is fight me for your own survival!"

"I have a name, you know…" A deep whinny escaped from the darkness, with Asuka shielding her eyes the second a light shined overhead. When her vision quickly adapted, she found the tall horse demon sitting in a cybernetic throne before her, his fingers tented as his brown horse head leered at her. His body matched up well in terms of coloring, although Asuka questioned how the only things he wore were gauntlets, boots, and a pair of trunks that reminded her of something a galactic warrior would wear.

"At this point I don't care to know it," Asuka said, taking one step back to prepare herself in a fighting pose, "I'm taking you down before you can do anything to harm humanity!"

The horde demon stood up, ready to fight Asuka as she rushed into him. One leap in the air, the taimanin had her leg out, ready to kick his Bestival head in while her blade prepared to cut into him afterwards. Before the young woman could even do anything to him, however, the demon raises his arm up, revealing the gauntlet to have a cybernetic keyboard built in. Quickly, he typed in a short command, and before her foot could even reach him…

"Gwah!" Asuka's limbs shrank in on her, folding up so that her arms were at her sides and her lower legs pressed against her thighs. Her feet even pressed into her rear, while her hands cupped her shoulders. Lastly, her blades retracted back into her limbs, leaving her to fall on the floor before she could kick the horse's head in.

"What…what is this?!" Asuka shouted, struggling to pull her limbs out for proper fighting. "I can't move my arms or legs! I can't…I can't control them!"

"Precisely," said the horse demon, a gifted grin on his lips, "that choker around your throat allows me to access those limbs and command them how I see fit. You've lost control, Asuka, and now I'm in control of your body!"

"Like hell you are!" Despite Asuka's claim, she couldn't take herself out of the folded up position, as she was now on her elbows and knees. The horse demon laughed, seeing how he now towered over the taimanin.

"Just how I like my sluts," he cackled, "you look like a bitch in heat, and I'm going to make sure that's all you ever are!"

"I'd like to see you try!" Asuka shouted, although her words had more bark than her bite at this rate. The horse demon dropped his trunks, revealing his bestial member to the cybernetic taimanin.

"Stubborn to the end," sighed the horse demon, letting his six foot cock dangle over Asuka's head. Already his flared horse tip dribbled with precum, the clear fluid dangling from the hole as it threatened to drop into the taimanin's golden brown locks. The determined expression was soon switched with that of fear, as she knew just what he was going to do to her.

Grabbing her by the shoulders, the horse demon lifted Asuka off the ground, raising her so that her head was level with his massive cock. Smothering her face against his flared tip, he heard the ninja blubber against his clear fluids, smearing it around enough that it could ruin any makeup she might be wearing. Once she was pulled back, the young woman gasped for air, worried she would drown in the sex.

"Now, open wide!" The horse demon snorted as he forced Asuka's jaw open, stretching it out so that it could fit down her gullet. While the paraplegic taimanin thought the force of his bestial rod down her throat would stretch and break the cybernetic choker, it seemed he had planned for that, as it expanded along with the giant bulge forming from the flared tip. Asuka's eyes still grew wide, as she was choking from the force of the rod as it managed to press past her throat entirely and clogged up her internal organs around the throat area.

There was quite a lot of concern on Asuka's part as she saw the remaining length in front of her, lips barely within range of his ball sack. If he was able to get her this far on his knob already, she wasn't going to like it when he slid her all the way down.

As it turned out for the taimanin, it was quite the painful trip down the rest of the member, feeling the tip threaten to come out of her asshole. Asuka whimpered with fear, hopeful that she wouldn't be caught with the rod coming out the other end. While she was fixated on the hopes that her body wouldn't be damaged, the horse demon seemed intent on getting his tip through her rear end, slamming her head against his waist repeatedly. With repeated thrusts to his hips, not only did Asuka's throat and the choker expand violently, but her saliva pooled out of her lips and down her chin. The bestial creature was driven wild by the tight space from her underworked body.

"Pathetic taimanin," growled the horse demon, forcing Asuka's skull against his waist for several seconds, "it's clear for a whore your body hasn't been expanded to its full potential. No matter, I'll be the one to work you in so hard that you'll resemble an onahole that's ready to be tossed out!"

Asuka found herself pulled back by the horse demon after that, with her lips near the flared tip. As it quaked within her mouth, the taimanin tried to prepare herself, expecting an eruption of some sort. Naturally, she was proven right, though the hard blast of jizz forcing its way down her throat was too much for her to handle. Even her neck ended up expanding from the overflow of cum, all of which trailed its way down to her stomach. That started growing in size, inflating like a balloon the longer the demon dumped its load down her gullet.

The horse demon finally let Asuka go, allowing her body to collapse on the ground with her limbs still scrunched against her body. With her belly growing so big, it was the first thing to land on the ground, causing her to vomit a heavy amount of jizz right onto the higher demon's hooves. While a gross mess, the demon chose to ignore it, even pushing his cum stained hoof onto Asuka's back to help her spray more of his load out of her mouth. The horrid wretching sounds she made as a result would have been terrifying to anyone else, yet it was music to the bestial creature's ears.

"O-Okay, you've had your fun," Asuka said, gasping for air after such a harsh ralphing of horse semen, "now let me go and we'll have a real fight!"

"I don't dare give you such satisfaction," huffed the horse demon, using his gauntlet to control the taimanin's limbs once again. As she was still on her elbows and knees as a result of her appendages tightening up against her, Asuka was made to walk around on them until she had her ass facing the creature. Using the tight nature of her taimanin suit, the demon rubbed his cock against her crack until he was fully erect once more, prepared to use his member on her much smaller body. This time, it was clear to the young woman that he was looking to use another hole that wasn't her mouth.

When the flared tip pressed against her ass, Asuka whimpered with the knowledge he was going to rip through her suit in order to go right inside her anus when the time was right. No matter what her training, the taimanin knew that as much as she tried to mentally prepare herself for such a strain, it wasn't going to make the pain lessen on her internal organs.

"Now it's time to properly break you, bitch!" The horse demon grabbed hold of her ass, keeping her grounded as he pushed his horse cock harder against her posterior. The tight suit finally ripped against her ass, with the demon's dick forcing its way right against her anus immediately. Despite cum still leaking from her lips, Asuka wailed like a banshee from the strain of her cavity being stretched out, with more than half his dick going through her. The flared tip expanded against her stomach lining, stretching it out in order to properly fit inside her body.

What was worse for Asuka was how she was forced to have the rest of her body expanded in order to fit the full length of the horse demon within her, until it went past her stomach and against her chest. The shape of the dick was between her breasts now, forcing the zipper on her taimanin outfit to break and expose her big breasts. From there, the beast had to thrust his hips into her body, hearing her gasp as it started to trail towards her throat.

"N-No! You can't let it go that far!" Asuka begged, even though it was already far too late for the rest of her body. "You'll ruin me for good! I'll be worn down from the size of your cock!"

"That is entirely the whole point of my cock using you as a sex toy, you handicapped bimbo!" the horse whinnied. "Now let me watch you take the entirety of my rod!"

When the flared tip forced its way through her throat, expanding it and the choker controlling her limbs, Asuka felt as though she was going to throw up, coughing and gasping already as she felt she would pass out from the lack of oxygen. When the crown made its way up her mouth after a bit of struggle, her cheeks puffed out before it popped through her lips, leaving its precum dangling from the tip as her saliva pooled out. Even as it was literally right in front of her, Asuka couldn't believe that this was happening to her, let alone that it was physically possible in the first place.

Grabbing Asuka's curled up legs, the horse demon controlled her body, moving her back and forth along his dong. Her ass smacked back against his hips on one end while her mouth smacked against the back of the flared tip on the other. There was no escape unless the demon creature allowed her to do so, yet even then he had full control over her robotic limbs. There was no counter attack she could make against the beast, and soon enough, she was going to find her mind shattered from the quaking that would force its way through her body.

The quaking was enough to simulate a vibration going through Asuka's body, enough that it made her gurgle against the member as her juices blasted from her pussy. The fluids created a puddle at the horse's feet, though the demon didn't mind it in the slightest. All he cared about was that he was ready to shoot his load through her body and out of her mouth.

"GLLLLLLLLPH!" Asuka's eyes rolled back from the hard impact of her orgasm, as the horse semen shot from the tip poking out of her mouth. The substance made a large puddle on the other end of the room, massive enough that it could be considered its own pond.

The horse demon sighed, letting his cock deflate as Asuka slipped from the rod and onto the floor. The taimanin tried to roll onto her elbows and shoulders, only to find it impossible without the lack of motion coming from her appendages. "Now, I'll give you some freedom to move," said the horse demon as he tapped into his gauntlet, "but your first move must be to eat my cum off the ground. Otherwise, I take that little control back from you. Understood?"

"Y-Yes…" Asuka did her best to crawl towards the puddle, her hands finally free from its scrunched up nature. Rather than fight the demon and defeat him for good, she made her way to the seed, happily licking away at the creamy substance without plotting an escape for herself.

The horse was happy enough with this, grinning from ear to ear. Now he could enact the rest of his plans without fear of further interruption.

##

"Slut! My cock is throbbing for something to breed with!"

"Coming, my master!"

The horse demon sat on his throne, rubbing his dick patiently as he awaited the arrival of Asuka. Her limbs had undergone little new development over the months since he took over her mind, although he had the placement of her heels adjusted, so that her toes were pointed towards the ground like that of a ballerina. Her taimanin outfit was fully eliminated from her body, replaced with that of an erotic outfit made for a submissive member of a harem. While she was the first, the demon knew she would also be far from the last.

And of course, there was the womb tattoo the horse had placed on her lower stomach, which was still present even now that her belly had swollen in size. Whether it was due to his own seed keeping it that large or there was a child on the way, he could care less. All that mattered to him was that he had his own human to utilize and treat with the same respect he would an onahole device.

"How would you like to use me today, my master?" Asuka asked, rubbing away at her belly.

"Let me watch you rock atop my cock," said the demon, "I wish to see those tits bounce atop your belly."

"Yes, master!" Asuka's bubbly giggle made his cock bounce, with the taimanin lowering her pussy over the flared tip. With it filling her canal and puncturing the cervix into her womb, the former taimanin agent rocked away at the shaft, all while the horse demon refused to look into her eyes. He was much more fixated on her large melons, jiggling and slapping down on her expanded stomach as she tried to please them both at the same time.

And for the horse demon, as he prepared to dump his cum inside her once again, this was only the beginning. Soon, all human women would suffer the same fate as Asuka, whether their appendages were metal or not.