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Izuku was a simple person. He didn’t believe in the supernatural, but he wasn’t going to fuck with it. Every time he was with a friend group that wanted to jokingly do a ritual or use an ouija board, he excused himself. Katsuki loved to call him a coward and jeered at him every time, but that wasn’t going to change Izuku’s mind.
The scenario this time around was too close to a horror movie for his liking. They were all staying at one of Shouto’s places. Not necessarily out in the middle of nowhere, but the hillside house was definitely out of hearing range from the rest of the neighborhood. So, a bunch of college students with the house to themselves wanting to mess around with satanic shit? Izuku hated that.
Izuku did his best to try and deter the group from it. There were literally a million other things they could be doing. When that didn’t work, he at least tried pulling one person from the group away so he wouldn’t be lonely upstairs. Ochako was surprisingly pumped for it, Momo was nervous but thought it’d be fun, and everyone else was a lost cause to try and convince. Katsuki loved doing things to spite Izuku. Even flirting back with Eijirou appeared to fail. Izuku tried to hint that they could have more fun upstairs, but eventually was left going up alone.
There were enough rooms in the house that everyone had their own space, so Izuku locked himself in his room and flopped down on the bed, bitterly wondering if the others were going to try and prank him. Normally he just went home, but home was out of reach this time.
Honestly? He was kind of peeved that he couldn’t get Eijirou to come upstairs with him. Not to mention Katsuki told Izuku he’d come up to comfort him afterwards, and he wasn’t sure if that was mindless teasing or not. The trip as a whole was sexually frustrating as hell when everyone involved was attractive and Izuku had a crush on most of them at one point. Also, some of them weren’t very courteous and kept their voices down when they had some fun at night.
Izuku wouldn’t really mind anyone coming upstairs at the moment, mindlessly rubbing his hand over his crotch as he scrolled through social media on his phone. Turning the screen off, Izuku let his thoughts wander. He thought of Katsuki coming into his room, hands rough and words of degradation falling from his lips. Eijirou was a nice thought too, and would probably want to genuinely check up on him. He’d properly be a lot sweeter than Katsuki, praising and gentle.
The dirtier Izuku let his thoughts get, the harder his dick got and palming himself through his shorts was not enough. He slid his shorts and underwear off, leaving the pair close enough in case he needed to put them on in a rush. Squeezing his hand around his dick, Izuku debated on grabbing the toy hidden in the bottom of his bag. He had anticipated getting lonely and horny at some point during the trip. Everyone would probably be busy for the next half hour at least, so if he was going to use it, now would be the time. Plus, if someone joined him in bed that night, he’d be nice and prepared.
Part of him felt like he should have more shame for doing this at a friends house. However, Izuku had walked on seeing Shouto doing too much for him to care at this point. He grabbed the dildo and lube, before settling down on the bed and getting comfortable.
It was hard sticking to a fantasy, his thoughts jumping from person to person. He settled on Katsuki as his lube fingers slipped into his hole. The blond would probably be quick, not spending too much time on foreplay. So, Izuku fingered himself up more roughly than he normally would, panting softly as he imagined all the filth that would spill from Katsuki’s mouth. He thought about Eijirou being there too and started stroking his cock slowly but firmly. A whine slipped through his lips as he thought up Eijirou praising him and kissing him, his actions and words contrasting starkly with Katsuki.
If Izuku were ever brave enough, he wondered if it’d be a good idea to bring up the thought of a threesome to them. Izuku had fooled around, but hadn’t quite gone all the way with Katsuki, and Eijirou had been subtly flirting the entire trip. It was probably a fantasy too good to be true, but that wasn’t going to stop him from coming all over his chest.
Panting, Izuku wiped himself off. He let his mind continue to wander through the fantasy, giving himself time to recover before moving onto the toy. He imagined two pairs of lips and hands on him, kissing and feeling him up. Ever so slowly, his dick started to harden again.
Getting onto his knees, Izuku slid the toy in, whimpering softly. It had been a while since he had used it. Pumping it in a few times, Izuku sank forward. Face buried in the pillow and his ass in the air, he started fucking himself harder with the toy, imagining Katsuki and Eijirou taking turns with him.
The room suddenly got a lot more chilly, even as Izuku was getting hot and sweaty. He didn’t think much of it, assuming the AC kicked in. Upon hearing a noise, he picked his head up, but saw nothing as briefly glanced around the mostly dark room. An orgasm felt nearly within reach when Izuku’s blood ran cold.
“Need help there?”
Even before he looked over his shoulder, he knew it wasn’t one of his friends. Izuku barely had a chance to figure out what he was looking at before the man, creature, was on him. A clawed hand slapped over Izuku’s mouth, preventing him from screaming. Even if it’s body wasn’t holding him down, Izuku felt frozen to the spot as he tried to make out what was on him. With the room being so dark and half his face was shoved into the pillow, he could only vaguely make out the gangly form looming over him.
Izuku’s eyes squeezed shut as it leaned down close to his ear. “I want you to be very quiet,” it murmured, sending shivers down Izuku’s back. “If you call for help, I’ll kill anyone who enters the room.” It’s voice fell into a growl. “So be a good boy and do what I tell you to, yeah?”
The lamp on the nightstand suddenly turned on, giving Izuku full view of what was on him. It looked human, but vaguely wrong. His limbs were too long, skin too pale and marred. The sharp teeth that filled it’s mouth as it grinned at Izuku only left him full of terror. It’s eyes were blue, startling so against the black sclera.
Izuku flinched and let out a whimper as the toy started pumping in and out of his hole again. At first he wasn’t sure how, he could feel both of Dabi’s hands on him, but then noticed the scaled and triangular-tipped tail circled around the base of the toy. A second tail stroked over his thigh, continuing to make shivers wrack through his body.
The creature smirked, “Don’t look so scared, baby. We’re just gonna have some fun, alright?” Despite it’s words, Izuku got the feeling it was thoroughly enjoying his terror. “Would you prefer it if I looked like one of the guys downstairs?”
It was hard to describe how the creature’s body changed. It filled out more, bony and marred flesh becoming healthy to the eye. One second it was an uncanny horror straight out of a movie, and the next a mostly human looking male. Only “mostly” human. The cock between it’s (his?) legs didn’t look human and didn’t move in a natural way. His eyes were the same and the tails remained. Admittedly, he would’ve been quite attractive if it weren’t for the situation.
“The ritual was just to talk to spirits,” Izuku finally spoke, almost as if logic would get himself out of the situation and the creature above him would disappear. “It wasn’t to summon demons.”
Purring, the creature pulled the toy out of Izuku and inspected it. “When you open a door to supernatural forces, that invites anything. ” He tossed the toy to the side. “Most things stronger than a measly ghost don’t particularly care about some dumb kids messing around.”
Izuku wanted to ask, then why are you here? But kept his mouth shut. The simple answer likely was that the demon wanted to have fun. Without even asking, Izuku knew exactly what that fun was going to be. If it were for the kill, he probably would’ve stayed downstairs.
“But, how could I not stay with such a pretty little thing all alone in his room.” The creature spread Izuku’s ass cheeks, hands unnaturally hot. “It’s probably been a while since you got fucked good, huh? Dabi’s here to take good care of you.”
The creature, presumably called Dabi, leaned down to wrap his arms around Izuku and pulled him up against his chest. His skin felt so hot, and finally Izuku got snapped into motion, desperately trying to get out of Dabi’s arms. Dabi just cooed at him, like he was dealing with a fussy animal. It was pointless trying to get away. Izuku was well aware of that, not being able to make Dabi’s arm budge an inch. He wanted to scream for help, but knew that the demon would hold true to his word and kill his friends if they were to try and check on him.
Eventually, Izuku gave up, breaths coming in as heaves as he fought back tears. Once he stopped fighting, Dabi leaned back against the headboard, keeping his arms snugly around Izuku’s chest.
“I want you to spread your legs,” Dabi said, tails stroking over Izuku’s thighs and his hands pinching at his nipples. “That little toy of yours wasn’t enough to prepare you for my cock.”
With running away and resisting being taken away as his options, he was only left with complying. If he did everything the demon wanted, maybe Izuku and his friends would survive the night. So, he spread his trembling legs, unprepared for whatever Dabi was planning on doing with his body.
One of Dabi’s tails slid down his thigh, and suddenly Izuku knew where this was going. It prodded at his entrance and pushed in without much prompting. It was about as big as the toy, but Izuku was so tense that he had to bite his lip to prevent himself from crying out at the pain. The triangular-head of the tail felt so foreign as it continued to plunge deeper into Izuku’s body. Like the rest of Dabi’s body, it was hot and twisted inside of Izuku in a way that left him sick.
“Why so tense?” Dabi asked, nipping at Izuku’s ear. “It’ll hurt a lot more than this if you don’t relax.”
Izuku wanted to relax, but his terror at this hurting even more than it already did wouldn’t allow him to do so. He thought about how big Dabi’s cock had looked and didn’t want that thing inside of him. His chest felt so constricted he could barely even breathe.
Closing his eyes, he tried to escape to fantasy. Izuku imagined it was Katsuki doing this to him. His heart pounded and he was painfully aware that Katsuki would never hurt him without his consent, but it helped him relax as the tail continued to plunge in and out of his hole. The other one wrapped around his dick, pumping it until it was hard again even if Izuku felt no true arousal.
Just when Izuku had zoned out enough, the second tail prodding at his entrance had his eyes snapping open to watch in horror. Slapping his hand over his mouth, Izuku muffled a pained cry as he was stretched too far. His other hand desperately patted around the bed until his fist closed around the forgotten bottle of lube. Izuku desperately pushed it into Dabi’s hands, praying the demon would stop for a moment.
“Oh?” Dabi withdrew the second tail, much to Izuku’s relief. “I kinda wanted to make you scream, but you are being very good right now.” The demon squeezed out most of the bottle onto his tail before tossing it to the side. His tail slid in a lot easier, but it still hurt.
Izuku hated the way the tails twisted and rubbed inside him, keeping his hand firmly over his mouth to keep quiet. They pushed far deeper than any toy had gone. It was a dizzying feeling, far too unreal. This had to be a nightmare, right? Or maybe one of his friends had drugs and he somehow accidentally took them. Everything felt too unnatural to be real. Even as Izuku watched the twin tails plunge in and out, and he could feel the way they stretched him, part of him couldn’t grasp that it was happening to him.
When Dabi moved his hand off his mouth, Izuku panicked, wondering if the demon was going to try and force him to be noisy. There was no telling if he’d kill Izuku’s friends regardless of how good he tried to be. Dabi just made him turn around enough to kiss him. It was aggressive and overwhelming, Izuku whimpering as his lips got nicked by sharp teeth.
The twin tails slithered out of his ass, leaving Izuku trembling and aching.
“I really expected tears by now,” Dabi said, thumbing over Izuku’s bleeding lip. “Do I gotta try harder to make you cry?”
Izuku’s body went stiff, eyes already welling up at the thought of Dabi doing things to force him to cry. It already hurt.
On the other hand, Dabi immediately started laughing. “That expression you just made, oh my God,” he snickered, kissing Izuku. “I was just teasing you, baby.”
Izuku doubted that, blinking back the tears as the demon cooed at him and touched his body. Part of him was still waiting to wake up. All things considered, this was not the worst the demon could be doing. Dabi could have forced him open and fucked him by now. He could’ve torn Izuku’s skin to ribbons with his claws and sink his teeth into Izuku’s flesh. This was far more gentle and courteous than Izuku was expecting when the demon first appeared.
“Are you going to kill me when you’re done?” Izuku asked suddenly.
Dabi blinked in surprise. “Tempted,” he answered honestly. “Bet your friends would never do dumb shit like this again after finding your body. Would absolutely love to watch that chaos unfold once they come up stairs.”
The words left Izuku feeling sick to his stomach and terrified.
“However, I don’t feel like making a mess tonight.” Dabi stood up, holding Izuku in his arms. Instinctively, Izuku wrapped his legs around the demon’s waist and grabbed onto his shoulders. “Sometimes when I’m done, my little playthings try summoning me again.”
Izuku tried looking away from Dabi’s face, wanting to zone out again.
“Sometimes it’s because they want to kill me, and I love watching them try,” Dabi purred, pressing Izuku against a wall and grabbing Izuku’s legs. “Other times, it’s because they can’t get over me and need to feel me again.” Dabi’s dick seemed to be able to move on it’s own, squirming it’s fat head against Izuku’s entrance. It was far too big and long for Izuku’s comfort. “Wonder which one you’ll be.”
Unable to cover his mouth, Izuku bit down on his lip as Dabi’s cock pressed in. He went in slow, but did not pause to give Izuku time to adjust. The nubs that lined down Dabi’s cock rubbed against everything inside of Izuku. It squirmed and steadily pushed deeper, stretching Izuku further than he thought he could go.
Izuku let his nails dig into the demon’s shoulders, hoping it was unpleasant for Dabi although he knew it likely didn’t affect him. Tears started slipping out against his will. He hated the way Dabi cooed at him and how his hot tongue brushed off the tears. Izuku’s torment was nothing but amusing to the demon.
“Do you feel how deep I am?” Dabi asked once he had pushed himself all the way in. His cock curled up and Izuku wasn’t able to hold back the moan. “Shhh,” he shushed, pulling back and snapping his hips back in. “Don’t want your friends to interrupt us, now do we?”
The brutal pace was unforgiving, noises getting fucked out of Izuku no matter how hard he tried to hold them back. Hopefully he was still quiet enough to prevent himself from being heard. Dabi wasn’t making much of an attempt to keep it down though, growling and muttering filth as he fucked Izuku. His tails trailed up Izuku’s body, continuing to tease him.
Izuku started burning up. His insides felt so warm, every thrust making it worse. Or, better? It was starting to feel good and he was wanting more, but it was like those feelings weren’t his own.
“Don’t fight it.” Dabi nipped at Izuku’s ear hard enough to draw blood. “That’s right, take it,” he grunted, bouncing Izuku on his cock faster. “Feels good don’t it, baby boy?” One his tails curled around and started stroking Izuku’s neglected dick, much more slow and steady than the brutal way he slammed his cock into Izuku.
Overwhelmed, Izuku barely managed to hold back a moan as his eyes rolled back. A haze took over his mind and the pain melted away into pleasure. His grip on Dabi’s shoulders loosened, barely able to hold on. As Dabi’s other tail curled around his neck, somewhere inside of him screamed to be more alarmed. The pointed tip shoved its way into Izuku’s mouth, successfully gagging him as he moaned around the length.
The words Dabi purred into his ear were nonsense, barely able to make sense of anything other than how he was being fucked. Every slam against his prostate only added to the flame. The way the nubs lined on Dabi's cock rubbed at his overstimulating nerves were driving him crazy. With a jerk, Izuku came, finally releasing the hot pressure building up inside of him. It cleared Izuku’s mind a bit. However, his senses were still overwhelmed by Dabi’s invasive touching.
Biting down on Izuku’s shoulder, Dabi reached his climax a moment later. His cum felt uncomfortably hot inside Izuku, filling in what few gaps Dabi’s cock didn’t already stuff. Even after he came, the length continued to squirm inside Izuku as if to make sure his insides were coated in the demon’s seed.
Letting go of Izuku’s shoulder, Dabi licked over the bite mark with long strokes of his tongue, a purr like sound rumbling in his chest. His cock slipped out of Izuku’s ass, and he whimpered as he felt the cum drip out of his hole to the floor. Dabi kissed Izuku after moving his tail.
“I wish I could take you with me,” Dabi sighed, carrying Izuku back to the bed. “You are the cutest little cocksleeve.”
The way he gently placed Izuku down almost made him angry. How dare he do all that and then kiss him sweetly like a lover? More than anything though, Izuku was tired and terrified. What now? Dabi could just kill him anyways, or head on downstairs to go after his friends.
Then time blurred.
“Catch you in your dreams, Izuku.”
Dabi was there and then he wasn’t.
Izuku pushed his aching body up. The nightstand light still on, and there was no demon in sight. The mess Dabi had left inside was gone, but the bite on his neck could be felt, somehow already scarred over. It felt like he had passed out for a bit, but given how it was still dark outside, it couldn’t have been long.
Are my friends okay?
Suddenly filled with urgency, Izuku scrambled to get dressed despite his body screaming in protest. He was on his feet within a minute, forcing himself not to limp as he went for the door. The hallway was dark, and Izuku found himself too scared to turn the light on in case it revealed something he didn’t want to see.
“You guys done yet?” Izuku called as he made his way to the stairs. Being met with no response filled him with a sense of dread and he hurried down the stairs, almost tripping in the dark. There were still several candles lit, but no one was in sight.
“Kacchan?” Izuku looked around, not seeing anything. Maybe they were hanging out in the kitchen? If Dabi killed them, it wouldn’t be this clean, right?
The kitchen was dark when Izuku arrived. Sick to his stomach, he flipped on the light switch and didn’t see anything. With a frown, Izuku turned around and nearly ran into someone.
“ Boo!”
Startled, Izuku let out a shriek as he stumbled back.
“I got him you guys!” Eijirou cackled, glancing over his shoulder. The grin on his face waned when he looked back at Izuku. “Are you okay?”
Breath hitching, the tears started spilling over in a second.
“Shit,” Eijirou cursed, rushing forward. “I-I’m sorry? Midoriya?” He put a hand awkwardly on his shoulder.
Once the tears started, they didn’t stop. With shaky legs, Izuku sank to the floor sobbing.
“What the fuck did you do, Shitty hair?”
“I didn’t do anything! I just spooked him a little!”
As all his friends' voices filtered in, arguing with each other, the relief Izuku felt was immense. They were all safe. Dabi didn’t hurt any of them.
It was several minutes until Izuku could calm down, all his friends asking him what was wrong, but unable to get an answer out of him. He couldn’t tell them. If they believed him, they’d blame themselves, and several of them were the kind of idiots to summon Dabi to kill him. No. They were safer if they never knew.
That night, they stayed up watching movies and dog piled on the couch. Katsuki clung onto Izuku like he was protecting him, clearly bothered by not knowing what the problem was. Izuku appreciated the gentle warmth around him, being in the arms of someone who cared about him.
But he knew Katsuki couldn’t protect him.
Catch you in your dreams, Izuku.
It felt more like a promise than a goodbye.