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Childe collapsed onto the bed, the world spinning around him. His skin felt flushed and his head was pounding. He had gotten done with training some new recruits when one had offered him a drink from their bottle. He hadn’t thought anything of it, as many people shared their water during and after training, especially with how hard Childe liked to push the recruits he trained. He knew now that it was probably something in that bottle that caused his health to decline so quickly. The only question was if the man who handed him the bottle was the perpetrator or another victim. He would have to investigate tomorrow, right now he had to shut his eyes in a hope that he wouldn’t throw up. Whatever he ingested was already in his system, so throwing up would just dehydrate him. He wasn’t sure if he would have the strength to drink later so he wanted to hold it in as much as possible. He felt his skin break out into a sweat as he was dragged down into unconsciousness or nearly there.
It felt like sleep paralysis inside a dream. He could feel his body but his head was clouded as his consciousness kept slipping like there was nothing to grab onto. He saw strange visions out of the corners of his eyes but he wasn’t sure if his eyes were really open or not. Hands seemed to grab and touch him, so many hands all over his body. He felt sick, the rocking motion turning his stomach into knots. He felt his hand reach out to smack at the visions but it bounced off of something and fell down to his side. It was like a strange trance. His arms moved above his head and he suddenly couldn’t move them again. His body felt tight and stretched out, uncomfortable. He wanted to be able to focus his brain so badly, but his hazy eyes only caught shadows. Was he having a fever dream of the abyss? There was a strange pressure and ache in his core, and a pressure building up. His lips trembled as his body flinched and raised up, his back bending as pleasure shivered throughout his whole body. What was that? Childe truly passed out, finally, as his orgasm finished tiring out his body. But what really happened outside of his drugged state? Would he ever know?
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*Five Hours Earlier*
The new recruits had been warned already how tough the 11th harbinger was when training. He had high expectations and a ruthless attitude towards self-improvement when it came to the Fatui. In fact, the new recruit watching Childe now was currently about to pass out from the intense physical labor of the drills. The devil was truly beautiful, he thought, as the man running them around the field laughing maniacally with his blades was truly a demon. Still, he couldn’t help but want to hear praise from the man accompanied by a cute smile. He was daydreaming, but he was allowed to dream right? Probably wrong, considering Tartaglia himself had spotted the man staring at him from afar. The sight of him running full speed at him shouting “counter this comrade!” send chills down his spine. With a cowardly cry, he tried his best to do as the harbinger commanded of him, but miserably failed and twisted his ankle. With a pitying shake of his head, Childe dragged the man over his shoulder, effortlessly carrying him to a makeshift medical tent. There was no staff though, so the recruit was getting ready to bandage himself when Childe tutted at him. “What are you doing? At times like these, let your instructor dote on you. After all, it won’t happen very often.” They were just kind, joking small talk, but it lit a desire deep within the recruit. He wanted to possess this man, at least once. To repay the fire in his gut by lighting one within his. The man who felt nothing outside of battle and his family, yet was carefree unlike anyone else in the Fatui. He was well talked about. He made a lasting impression. The recruit planned to make a lasting memory, even if only he would be remembering it.
After giving Childe his water that was actually a lightly diluted potion he had bought from a sketchy shop, he waited until his instructor passed out before sneaking into his room. Childe laid on the bed, uniform still on. His eyebrows were drawn together and he was grunting and shifting in his sleep. If the potion was real, Childe would be knocked out the whole night and forget everything that happened. They said it would also induce mind control for the person that fucked him, and would last forever as long as that same person came inside the target every day from then on. Did he believe that part? No. But he knew there were drugs that could make someone pilant and forget a good chunk of time, so he assumed that it was this. He reached out to test it, and when Childe simply frowned at the touch, he got more bold.
He started at his face, cradling it like a precious glass object. He went down the curve of his neck to his chest, spending some time pinching and twisting his nipples. Slowly Childe began to jolt and groan, his pants starting to tent. Suddenly Childe’s eyes flew open and his hand shot out. The recruit thought it was over for him, but the arm had no force behind it. His eyes stared out, unseeing. “Oh, you’re under some kind of hypnosis. Maybe it was legit?” The recruit spent no time tying up Childe’s hand, just in case. Now that his eyes were open, it felt even more special. Despite doing this by drugging him, it made the recruit feel like the Harbinger was consenting to it. He quickly pulled out Childe’s dick, pumping it and watching his back bend as moans spilled from his lips. He wasn’t in his right mind, so he felt no need to hold back his voice as it pitched up and up until he was whimpering as he came all over his own stomach. The recruit leaned down and licked it all up, looking up to see Childe passed out.
“What? You had all the fun and passed back out? That’s not fair. Instructors are supposed to give hands-on training.” Getting an idea, the recruit pried open Childe’s mouth. Luckily it stayed open as he climbed on top of him, facing towards his feet. He angled it so that his dick slipped to the back of his relaxed throat, enjoying the way it suddenly spazzed at the intrusive object. Propping himself up on his elbows, he casually fucked his instructor’s throat as he pulled off Childe’s pants fully. He wanted to taste all of him. He licked the head down to the base, taking a deep smell with his nose shoved into Childe’s red pubes. He took some time to just smell him, liking the way it made his own dick swell and throb in the unresponsive throat it was buried in. “It would be nice if you were coherent enough to suck me off.” Nothing. He sighed, continuing to find his own friction as he moved on to Childe’s balls. He took one in his mouth, sucking on it as he pumped Childe’s dick. He liked how they tightened and showed him how close the other was to coming. He used his hand to catch all his sperm. He continued to suck on the sensitive head of Childe’s dick as he began to finger him open, the true goal of tonight. Childe started to whine around his dick, the vibrations felt so good that he almost came. He quickly slid out, deciding he couldn't wait any longer. With no ceremony, not that he knew what to say anyways, he aligned with Childe’s hole and pushed in. His plan had been to bottom out, but his hole was so tight that both men cried out in pain. Despite his self proclaimed love for the man passed out on the bed before him, the recruit actually didn’t really care about the instructor’s wellbeing. So he just continued to force his dick in until he could bottom out.
“Shit this is harder than it looks. I wonder-” He leaned over, keeping his dick in, as he searched Childe’s night table. Sure enough, there was a lube bottle partially used. “You better have only been tugging your dick. You aren’t allowed on anyone’s dick but mine.” He pulled out, shoving the bottle partially into Childe’s ass. He watched as the Harbinger’s face screwed up in pain until his whole body was flinching as his ass was filled with the rest of the half bottom of cold lube. It made his asshole look so pretty and shiny. He couldn’t help ramming back into it, almost immediately coming deep inside of him as that ass clenched around the instruction.
Childe’s eyes fluttered open, that same glazed look on his face. Did it work or was it drugs? The recruit probably wouldn’t know until the morning when, if it was drugs, it would have worn off. Until then, he was going to test some stuff out. “Get up on top of me.” Childe instantly mounted himself on the recruit’s dick, the pressure causing him to blow a load into his instructor’s tight ass. “Shit, not what I- fuck whatever. You’re already so excited to eat my dick with your mouth down there, so how about you ride me until you cum. Oh, but don’t touch yourself.” The recruit was content to watch as childe kept his tied hands above his head and started to bounce on his dick. His tight hole dripped lube and cum down his thighs, his asshole making a loud popping noise every time he aggressively thrusted the dick in and out of himself. His head was thrown back as he moaned, and the recruit got an idea. “Say my name.” The most he got was a string of Childe whining and calling him master, but he didn’t hate that. He could be the harbinger’s master. Technically he was, as long as his semen controlled him. He came once more, flipping Childe onto his back with a command. The instructor still thrusted back into his student’s dick, chasing his own release as instructed, but the recruit was getting a bit upset at how hard it was to make Childe cum on his dick untouched. He found a string from a parcel lying on his nightstand and tied Childe’s dick. The man didn’t even react. He barely even slowed down long enough for him to tie it. At first it didn’t seem to matter, but slowly he noticed his movements got more erratic as Childe started to whimper and moan. His eyes were glued to his own dick, as if he knew enough to see that was the problem but was bound to not be able to fix it.
The recruit came again at the sight of his total obedience, though Childe let out an annoyed, loud moan as he was once again denied orgasm. “Shut up, you’re just a fuck doll at this point. Just be quiet and take my dick.” Still unable to cum, Childe held his mouth shut tight but his deep moans and sobs leaked through. His dick looked painfully strained. “Oh fine, I’ll show you some kindness. I thought you liked intense training, but I guess you can’t resist busting on my cock.” The recruit refused to acknowledge how Childe couldn’t actually cum on only his tiny dick. He resorted to getting Childe off in his hand, saying it was a treat for the Harbinger being so good to him. He continued to fuck his instructor late into the night, leaving marks all over his body. If he did forget everything and the hypnotism did wear off, he wanted his teacher to go insane knowing someone had fucked him stupid without exactly knowing who. Though a part of him did want his teacher to know it was him.
Just in case it turned out to be real, the recruit decided in his post-orgasm high, to give some commands to the man spread out under him. He thrust deeply each command, marking them with a spurt of cum deep inside of him. The one time the recruit was lucky to have premature ejaculation with a short refraction rate, he thought as if Childe wasn’t leaking cum from the ten times he had already cum inside him. “You should feel bliss every time you hear my voice. I want you to cum the moment I touch you. And if I give you a command, you should go straight into hypnosis and do as I say and no one else.” After Childe was overstuffed with cum, the recruit cleaned him up a bit before leaving.
The next day at training, the recruit was sweating bullets. What if Sir Childe remembered him? He would be decapitated at the very least, for sure. When he saw the familiar outline of his body sneak around the corner, because of course he remembered that body after touching it all night and marking it up completely, he felt death draw near. Although when they made eye contact it was Childe who looked mortified. Huh? “Sir Childe, are you alright?” Tartaglia’s whole body flinched at his voice, a confused look overtaking him. He opened his mouth to speak but the recruit cut in first, feeling an excitement begin to bubble within him. “Sir? Do you need some help?” He grabbed Childe’s shoulder, squeezing. Instantly Childe let out a whine from the back of his throat as his legs collapsed on him. The recruit’s face twisted into a sneer as the Harbinger shivered and came in front of him. Embarrassed, Childe shifted to cover himself, no doubt scared of what his body had become overnight. The recruit couldn’t believe the potion worked. He simply thought it made the Harbinger pass out and hopefully forget the night, but it seems to have carved everything he did to him into his body. He wondered how far he could push this. “Spread your legs open for me, Sir. I need to see what a mess you’ve made of yourself.”
It was like Tartaglia was hypnotized, yet still able to tell what he was doing was wrong. His legs slide apart in a pose like he was going to ride the recruit’s dick again, showing off the soaked front of his pants. His face burned and he couldn’t make eye contact as the recruit reached down and pulled the semen cover dick out of his messy underwear. “God I should make you run drills like this. Absolutely dripping in your own cum.” As if on command, Childe’s dick hardened again. “How are you going to train us like this, sir? How about every time I make you hard today you pull that dick out and start jerking off for me?” Immediately, Childe started stroking himself. His eyes were now just as hazy as last night and the recruit felt a thrill run through him and go straight to his dick. “I have a better idea. No one else should get to see you like this. Get up, we’re going to go back to your room. You’ve ruined yourself. Oh, but don’t stop touching yourself until you cum.”
Childe stumbled beside the recruit, indecently moaning as his hand relentlessly pumped his cock. The recruit never got to see this last night. He wanted to watch the way the Harbinger crumbled but first, he had started to pop his own stiffy from the sight of his idol pleasuring himself. He pulled them to a wall where anyone could come and walk around. “Drop your pants and underwear for me, you’ve dirtied them anyways.” Childe did as was commanded. The recruit played with his hole, delighted to find his cum still leaking out. “You never cleaned this out? Did I tell you not to?” He couldn’t remember but it made a fine lube now. He immediately thrust into the older man, loving the way the walls of his ass still clenched perfectly around his cock. “I knew you were made for this. Please, please stay like this forever, listening to me every command. I’ll pamper you so much. I might not win in a fight but I’ll fuck you so hard you pass out every time- eh?” As if on command, Childe passed out. The recruit’s dick popped out as he fell, his cum squirting all over the Harbinger’s uniform shirt.
His ass was up in the air, leaking cum. His face pressed down into the dirt, eyes closed. Had.... had he passed out? Shit, he still didn’t know how this mind control worked. “Get up, I’m too weak to carry you, Sir. Sir?” He didn’t respond. The last time this happened, cumming inside him worked. Shit, if only he hadn’t released outside of him. He quickly grabbed the Harbinger’s hips and madly thrust into it. He still pulled lewd moans from the man, but he wished he would shut up right now. “Be quiet! Damn it!” His heart was pounding. He could hear people talking a ways away, still far enough for him to finish but could he get a cock stupid Childe into his clothes properly by then? His hips snapped against Chlide’s ass so hard, he flinched from the impact of his balls. Quickly, just enough to have him back to being coherent so the recruit could run away. It didn’t matter if people saw Childe like this anymore. As long as the recruit didn’t get caught, he could keep fucking him and that’s all he cared about now.
Just as he released deep inside Childe’s rectum, his whole unit walked around and saw them. Childe came as well, his semen shooting over the grass in between them and the crowd. Every stared as their half naked instructor just sat there, fully exposing his cute little dick. Childe’s eyes gained clarity and he let out a horrified gasp as he covered himself before noticing the dick deep inside him. He looked like he wanted it out but couldn’t physically get it out himself. Shit The recruit pulled out and did the only thing he knew to do. “Our instructor is actually a huge slut that listens to my every command now. Please keep this a secret and you can take out your frustrations on him, too, for the harsh lessons.” Childe let out an enraged cry, unable to get up because his pants were still on the ground a bit behind the recruit. The rest of his unit didn’t seem to believe him so he ordered Childe to turn over and show them the cum dripping out of his ass. Suddenly staring out with his dazed, blank expression he did just that. His cock swayed between his legs as they trembled from just getting fucked. They all stared at how their instructor went into a trance before opening himself up as if to get fucked by them all. They all agreed. The recruit bit back his jealousy as he watched his instructor get absolutely destroyed by everyone in his unit, feeling ashamed as their much bigger cock got Childe to cum not only quicker but sometimes multiple times in a row. They all promised to keep it a secret as long as this became a constant before every training lesson. They continued to lesson with Childe leaking out cum, but no one pointed it out and just let the Harbinger think he was still sick from yesterday, ignoring the cum thanks to the hypnosis.
Childe never could figure out why he suddenly felt sick every first lesson of the day, or why his ass suddenly leaked out a weird fluid. Luckily, one of the other recruits had warned him to hypnotize Childe into not being able to recognize semen or the gig would be up. The recruit also couldn’t figure out how to take back commands, so every time Childe would touch his master without knowing what it would do, he would immediately drop to his knees and pleasure himself while the whole unit sneered and watched, sometimes using it as an excuse to have a second fucking session while the instructor still tried to jerk himself off to completion despite his hands being tied. Which meant he was basically forced through mind control to not cum until everyone was done stuffing his hole with their seed. They would all then enjoy their instructor sobbing from overstimulation as it would take a whole minute more of fast, hard masturbating to finally cum and complete the command. His cute dick sometimes even getting swallowed right after by his master, leaving Childe sensitive and horny when he came too. They would make it a game of making their instructor cum again in his pants while out of hypnotism just to see his face break out into horrified embarrassment as they watched his dick spurt until his light grey pants turned dark and mocked him for it. He would then have his back rubbed by his master while being told to stay ludic. He would cry as he pleasured himself once more in front of his student, unable to stop and not understanding why. They of course would then make him forget. It was tempting to have him start masturbating for them outside of the training area, like in front of other units, but they didn’t want his hole to get overused or anyone higher up to catch on.
It would be a very long time before Childe was free from the potion’s spell from an unfortunate accident of his master not coming in his asshole in time before the spell reset. Until then his asshole was put to very good use, much to the disappointment of the recruit. The first lesson of the day was never as harsh again, though, as Childe couldn’t walk well for some reason that he could never figure out.