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Amantes sunt amentes

Summary:

It starts with Ryuuji, Rin, and an Incubus. It ends with something more than either of them could imagine.

Chapter Text

“Well, fuck,” Ryuuji said. He switched his glare between the shut door and where Rin was crouched, rubbing his shoulder and pouting. If he couldn’t get the damn door open, nothing could.

The Exwires had been sent on a mission to investigate an apparently haunted house. Like their previous mission at the amusement park, they’d been split into groups and told to investigate different parts of the expansive mansion, and of course he’d been paired up with Rin. He assumed their Sensei was attempting to pair his brother up with someone who A: wouldn’t put up with Rin’s shit and B: keep a leash on the guy, but Ryuuji couldn’t help but feel that his life would be immeasurably easier if he just didn’t have to keep an eye on the impulsive half-demon.

They were assigned the basement, and they’d barely taken two steps past the door before it had slammed shut behind them and not budge. Their cells wouldn’t get a signal, Rin couldn’t bash the door down no matter how much he slammed his shoulder into it, and after pounding on the door and shouting for half an hour didn’t get any response they were exhausted and frustrated. Ryuuji even tried reciting as many verses as he could think of, and still no response. They had no hope but to wait for rescue.

And yeah, that didn’t sit well with either of them.

Ryuuji thumped his way down the stairs, needing some space outside of the stairwell. The basement itself was crowded with old furniture and boxes, and, after batting at the cushions to get the worst of the dust off, let himself stretch out on a dusty couch.

“What are you doing?” Rin asked, and Ryuuji looked up to see him looking at him from the bottom of the stairs.

“It’s probably going to take them a while to exorcise the ghost,” Ryuuji said, crossing his arms behind his head as he lay back. “And probably even longer until they realize we’re gone. I figure we should get comfortable and wait it out.”

“Ooooh,” Rin said, nodding. “Yeah, that’s probably smart. I just hope everyone will be okay. “

Ryuuji shrugged. “They got Sensei if things start going really bad,” he said. “Not to mention everyone can hold their own in a pinch.”

Rin still didn’t look relieved, but he moved away from the stairs and started poking through one of the boxes, leaving gingerly through the contents. Oh, for fuck’s sake…

“Hey!” Ryuuji barked, and Rin jumped at the sudden sound. “What the hell do you think you’re doing? That’s someone’s private property!”

“I’m bored!” Rin said, dropping whatever he was fiddling with back in the box.

“Don’t whine to me,” Ryuuji said, closing his eyes and doing his best to block the other boy out. “Just sit down somewhere and wait until they come for us.”

Rin was suspiciously silent in response; Ryuuji could just imagine the rude gesture or face Rin was making in return. Ryuuji sighed and shifted on the couch, trying to get comfortable despite the blown springs. He frowned and tugged at his shirt, feeling uncomfortably warm. Weren’t basements supposed to be cold?

“Hey, Suguro,” Rin said, and something in his voice made Ryuuji look up. Rin’s brows were drawn together, his head tilted up and eyes unfocused. “Do you smell something?”

Ryuuji ripped his gaze away from the tempting column of Rin’s throat, cheeks flushing as he tried to focus on what Rin was saying. “W-what was that?” he bit out, trying to save face.

“That smell,” Rin said, turning away from Ryuuji and sniffing, tracking down the scent.

Ryuuji, curious, sniffed gingerly. Beneath the smell of dust and mildew, there was an oddly sweet, spicy scent. He took a deeper breath, trying to figure out just what that smell was, and shuddered as whatever the scent was seemed to go straight to his dick, making it twitch in his pants.

“Fuck,” Ryuuji said, jumping to his feet and raining the collar of his shirt over his nose and mouth. It was probably way too late to do any good, but anything to slow down the effects. “Cover your nose, idiot! We’ve got either an incubus or a succubus.” He considered Rin who was just staring at him, eyes wide. Probably a succubus. “Cover your mouth!”

Rin snatched at his shirt and pulled it over his nose and mouth with both hands. “A what?”

Ryuuji barely stopped himself from facepalming. “They’re demons that feed off of sexual energy. They release a pheromone mist that arouses people, and that’s what we’re smelling.”

Rin boggled. “Sex demons? Why haven’t we gone over those in class?”

Ryuuji pinched the bridge of his nose. “We did. You probably slept right through the entire lecture!” He sighed and looked around. “I know the Fatal Verse to get rid of it, but the mist will take a while to dissipate.”

“So… what should we do?” Rin asked.

Ryuuji couldn’t keep the blush off his face, and suddenly couldn’t look Rin in the eye. “The uh, symptoms will just keep getting worse until we… take care of ourselves. If we just rub one out, we should be fine.” Hopefully. He felt a little mollified when he saw Rin’s face turn bright red at his words, though neither of them were having an easy time looking at each other. “Well,” he said, voice rough. The smell was getting thicker, and the flush in his cheeks wasn’t all embarrassment anymore. “I’ll just. Get started.” He jerked his thumb over his shoulder, indicating a corner that might supply a little privacy. “I’ll just… go over there for a while.”

Rin nodded frantically, and spun to face in the other direction. Even his tail looked embarrassed, tucked close to his legs instead of its usual lazy weaving around. Ryuuji realized he was staring at Rin’s ass and quickly turned away to head to his corner, putting his hands together and reciting the appropriate verse.

Luckily Succubi and Incubi were pretty non-violent, and they didn’t have to actually fight anything. Ryuuji could swear he could feel when the whatever it was had fled, and he breathed a sigh of relief.

That just left the issue of the mist.

Ryuuji knew the effects. A steady increase in arousal. Resistance just made the physical sensations worse and worse. Unless the arousal was sated, the victim would start to lose their mind, seeking out anything to soothe the burning fever in their skin. Even priests with their vows of chastity and years of repression were no match for it. The only wrinkle? All of his studies indicated that relief came in the form of a partner. He didn’t read anything that said that masturbation wouldn’t work, so it was worth a try, right?

Right.

He nodded to himself and unbuckled his belt. They’d just rub one out real quick, not look at each other for a couple weeks, and maybe in a few years they’d forget all about this. Just another part of the job, right?

Right.

His dick was already well on its way to full hardness, his pulse thumping hard under his hand as he carefully unzipped. He hissed when he pulled his cock out through the slit in his boxer briefs, the chill air of the basement a shock against the burning throb of his dick.

He propped himself against the wall with one hand, letting the fingers of his other slide up and down his length, rubbing his thumb against the head and pressing down until a drop of precome welled up in the slit. He licked his hand, getting it wet and slippery for himself, and returned it to his cock, squeezing hard before starting to fist his dick, not wasting any time before he could get it over with. In all the places he’s wanted to jerk off, in the basement of a ramshackle house with the Okumura guy just feet away was really near the bottom of the list.

A few minutes later he dropped his dick and slammed his fist into the wall, his teeth gritted and eyes clenched shut.

It wasn’t fucking working. His dick was so hot and hard he felt like it was about to explode, his body so turned on he was shaking with it, and yet he couldn’t cross that line. He’d never had such a difficult time getting off, and he swallowed the anger and frustration that threatened to consume him, taking deep breaths as he tried to calm himself down both physically and emotionally.

One last exhale and he pushed himself away from the wall, tucking his achingly hard dick into his pants though leaving his belt undone. He wasn’t looking forward to what was going to come next and damned if he was going to have that conversation with his dick hanging out.

He turned around and sought out Rin, spotting him in another dark corner with his back to the room. The guy obviously wasn’t having any more luck than Ryuuji was if the little whimpering grunts and frantically working arm were any indication. His whole body radiated misery from his hunched shoulders to his tail tucked between his stiff legs.

“Hey, Okumura,” Ryuuji said, his voice low and a little breathy. Rin jumped (shit, the kid needed to lay off the caffeine or something) and whipped his head around, his other hand joining his first to cover up his groin. The face he turned on Ryuuji was beet red and dripping with sweat; probably not too different from Ryuuji’s own, he assumed. “This isn’t going to work.”

“You said it would!” Rin snapped, still keeping his body turned away from Ryuuji’s as he fumbled at the front of his pants, tucking himself in.

“I thought it would,” Ryuuji said, crossing his arm. Just the sensation of his own skin-on-skin made him shiver and his cock throb in his too-tight pants. God, he needed to get off. “All of the research shows that getting off was the answer. I thought we could do it on our own. Obviously not.”

Rin was quiet for a moment, but the look in his eyes made Ryuuji’s throat close and refuse to let him continue. He looked terrified.

“You-“ Rin said, voice small. “You’re not saying what I think you are. Are you.” It was more of a statement than a question, begging Ryuuji to not confirm his fears.

Ryuuji swallowed, trying to work up enough saliva to respond. He wasn’t looking forward to it either, but Rin looked like he was about to face the firing squad. No, worse, Ryuuji realized. He’d faced people about to kill him before, was facing down the prospect of his own future death, and had taken it in better stride than he was just the thought that he might have to have sex with Ryuuji.

“Sorry,” he managed. “We’re going to have to do. Together.”

Rin turned to face Ryuuji at that, slicing his hand through the air as if he could physically negate his words. “No. No way, I’m not doing it. Bad enough to jerk off with you in the room, I’m not doing anything with you.”

Ryuuji spread his arms, indicating the room at large. “We don’t exactly have a lot of options here. We either do it together now and get it over with and never think about it again. Or we wait until the others come find us, let them know why we both have the boners from hell, literally in your case, and then we get treated back home. Treatment, by the way, is letting some doctor jerk you off!”

Rin blanched, and Ryuuji felt his anger abate just a little. Between his brother and that Moriyama girl, the thought of letting the others see him in his current condition was probably mortifying.

“Hey,” Ryuuji said, then had to pause as another surge of arousal made him waver on his feet. He took a breath and tried again. “Hey. We don’t have to have full-on penetrative sex or anything. I’m sure of it. We just have to get off with each other, so… handjobs or something.”

Rin was quiet except for his shaky breaths, his face turned away. “You… you’re sure that the others won’t know about it? You won’t tell anyone, right?”

“That I got a handjob from the son of Satan in a moldy basement?” Ryuuji snorted. “My lips are sealed.”

Instead of getting offended like Ryuuji was almost afraid he would, Rin instead let out a shaky chuckle, brushing sweaty hair out of his eyes. He looked at Ryuuji and nodded, a more serious expression settling in. “So…” he said. “How should we, um. Do this?” His eyes darted down to where Ryuuji’s cock was tenting out his pants and immediately fixed back on Ryuuji’s face, the red flush across his face deepening.

Ryuuji couldn’t help but reach down to adjust himself as he glanced around, mind working. It seemed like now that his body knew that another person was joining in on the festivities it redoubled the arousal coursing through his veins. His eyes landed on the couch he was laying on earlier. It would have to do.

“Come here,” he said, walking a little awkwardly over to it and sitting down in the middle, legs spread as he massaged the bulge in his pants, trying to soothe the hot pulse of it.

Rin circled the couch, one hand over his own groin, either to hide or to soothe Ryuuji couldn’t tell. He started to sit next to Ryuuji, but he stopped him with a hand on Rin’s arm.

“No, here,” Ryuuji said, patting his thigh. “Sit here and it’ll be easier.”

“What?” Rin said, eyes huge. “I’m not going to sit on your lap like you’re some perverted Santa Claus!”

“I’m a lot taller than you,” Ryuuji said, trying to keep his voice calm. “It’ll make it easier for us if we’re in each other’s space.”

Rin made a frustrated noise but still climbed gingerly into Ryuuji’s lap, sitting so far back he was in danger of sliding off of Ryuuji’s knees. Ryuuji rolled his eyes and grabbed Rin’s hips and pushed them closer. Rin yelped in surprise as he lost his balance and he fell forward faster than he could catch himself, their chess colliding and their groins grinding together. They moaned in tandem, Rin’s face buried in Ryuuji’s neck as Rin couldn’t help but give a rolling thrust against the hot hardness beneath him.

“Sssshit,” Ryuuji gasped, eyes slamming closed as lightning coursed through his veins. Even that little bit of pressure was already so much better than trying to get off on his own. “Come here,” he said, not even paying attention to just what he was saying as he clenched his hands around Rin’s hips, moving the other boy’s hips into a grind against his own, a low groan in his chest at the sensation of blessed heat and pressure against his trapped dick. After a moment Rin picked up the rhythm and Ryuuji let his hands release their death grin and wander, fingers ghosting up on Rin’s back, down along the curve of his ass, digging into the base of his tail-

“A-ah!” Rin gasped and his head snapped up as his spine went tense. Ryuuji’s eyes popped open to see Rin’s expression of surprised bliss, then fluttered as Rin gave a couple frantic thrusts against Ryuuji’s lap. “Do- do that again!”

Ryuuji shifted his grip so that he was holding Rin’s hip with one hand and wrapped his other around Rin’s tail, pressing hard rubs into the base of Rin’s tail with his thumb. Rin fucking mewled at that, his hips first bumping back as if seeking out more of the sensation before slamming forward again. Ryuuji leaned back, breathing hard and mouth open as he started in wonder at the demon on his lap. He knew that demon tails were sensitive, but… damn.

Ryuuji let go of Rin’s hip to slide around and fumble at Rin’s fly, needing to see the other boy bare to him, needing to get him in his hand, maybe (and his mouth flooded with saliva at the thought, he could just taste it) his mouth, and he had his fingers on the tongue of the zipper when another hand slammed down and grabbed his so tight he could feel the bones of his fingers grinding together.

He looked up to see Rin, and his face was just wrecked; his messy hair plastered to his forehead with sweat, mouth open as he gasped for breath, but it was his eyes that made Ryuuji pause. His eyes were screaming no, don’t, and Ryuuji immediately pulled his hand away.

They looked at each other for a long time, Ryuuji not knowing what to say, Rin unusually quiet, and they just breathed with each other until Ryuuji finally worked up a, “Hey, are you okay?” He winced. Rin obviously wasn’t.

Rin ducked his head, and his hands dropped from Ryuuji’s shoulders where he was bracing himself to trail down across his chest and belly. Ryuuji let out a little gasp when Rin ghosted over a sensitive spot, but held his breath as Rin’s hands rested low on Ryuuji’s belly, just centimeters away from where he most needed to be touched.

“Do you,” Rin said, voice soft and a little unsure. “Do you think we can do you first? I don’t think I can…”

Ryuuji swallowed around the lump in his throat. “Yeah,” he said. “Sure.” He let go of Rin and let the other boy scoot back on his lap, giving him room. He undid the top button on his uniform pants but paused when a sudden realization occurred to him. “You’ve… never done this before, have you? Not even with a girl?”

Rin scratched the back of his neck and shook his head. “N-not really. I kinda dropped out of school before people really started dating, and none of the girls really liked me anyway. None of the guys, either, before you ask.”

That’s what Ryuuji thought. He didn’t have a ton of experience himself, but Rin was so body-shy... “No problem,” he said. “We’ll just… take it slow.” As slow as they can, at least. There was no telling when they’d get rescued. “We don’t have to do anything you don’t really want to.”

Rin groaned and his body collapsed forward, thudding against Ryuuji’s and making him huff out a breath. “I don’t want to do any of this,” he moaned, but his hips gave a little wiggle against Ryuuji’s anyway. Ryuuji couldn’t help but feel hurt, though he squashed the feeling as far down as he could. What the hell, he didn’t even like the kid, not like that.

“Then let’s get this over with,” he said, and pushed Rin up to a sitting position so he could get some room. His hands went back to his fly and he undid the button. Feeling Rin’s eyes on his lap, he tried to be as businesslike as possible as he unzipped his fly. Too bad his dick had other ideas as it practically popped right out.

“Jesus,” Rin breathed. “You’re huge.”

Ryuuji couldn’t help either the blush or the flutter of pride as he chuckled. He slipped a hand between them to palm his dick, hissing at the electric sensation. Rin’s gaze was glued to Ryuuji’s dick, and he looked like he wasn’t even breathing. Rin raised one hand, fingers first outstretched then slowly curled into a fist before lowering it, unsure.

“You can touch it, if you want,” Ryuuji said, then snapped his mouth back shut, cursing himself. What the hell was wrong with him?

It seemed to be exactly what Rin needed because, not raising his gaze up from Ryuuji’s lap, he slipped his hand across Ryuuji’s lap to feather unsure fingers up his length.

Ryuuji slammed his head back – even that light touch sent the fire inside of him to blazing heights. Apparently encouraged by Ryuuji’s response, Rin closed his hands around Ryuuji’s cock, giving it a light squeeze. He began to stroke, long slow strokes that made Ryuuji pant and moan and bite his lip to keep himself from babbling.

A low whimper dragged his attention away from the delicious feeling emanating from his groin and he forced his eyes open to a sight that made him shudder.

Though Rin was keeping up the strong strokes on his dick with one hand, he was pressing the palm of his other hand hard against his own bulge, his eyes clenched closed tight and his face scrunched up in an expression Ryuuji couldn’t determine if it was agony or ecstasy. Ryuuji just couldn’t sit back and watch.

“Hey, hey,” he said, batting Rin’s hands away (as much as it pained him to lose that hot tight pressure around his dick). “Here, let me, I got you.” Rin pushed himself back, that terrified expression starting to creep onto his face. Ryuuji took a deep breath, trying to calm his body. “Okumura,” he said, as soothingly as possible. “What’s wrong?”

Rin rubbed a hand between his legs and shivered. He looked torn for a moment, and Ryuuji was about to ask again when Rin said quickly, “You won’t tell anyone, right?”

“About this?” Ryuuji asked. “I already told you I won’t.”

“No,” Rin bit out, looking frustrated. “Not about this whole… thing. I mean. Well.” He let out a harsh breath, muttered something that sounded suspiciously like, ‘fuck it,’ and undid his pants and pulled his dick out, holding it in one hand and letting out a shaking breath at the feel of his hand on himself.

Ryuuji blinked at the sight. “Oh.” Well. He could certainly see why Rin would be shy.

Rin’s dick looked normal at first glance: decently long, maybe a little thicker than average. It definitely wasn’t normal though. Along the flared base of his head there were goddamn spikes. Small and nubby, there were still fucking spikes on his dick. His previous considering thought about giving Rin a blowjob was out the window.

“Yeah,” Rin said, giving his dick a couple strokes and shuddering while glaring at Ryuuji, just daring him to say something more. “Oh.”

“That a… demon thing?” He asked, then immediately felt stupid at the question. He decided that the reason behind his recent idiocy was definitely because all his blood had drained from his brain and was lodged in his dick.

“Yes,” Rin said, voice snide. “It’s a ‘demon thing.’ Fuck it.” He wiggled on Ryuuji’s lap, trying to slide off. Before Rin could storm off Ryuuji clamped his hands back around his hips.

“I’m sorry, Okumura,” he said. Rin stopped wiggling, and Ryuuji knew it was because of his apology rather than the hold he had on him. If Rin really wanted to escape, there was nothing Ryuuji could do to stop him. “I was just… surprised. It’s fine.”

Rin sighed and let himself get comfortable back on Ryuuji’s lap. “Sure. It’s fine. Can we get this over with?”

Ryuuji nodded and reached out an experimental hand. Rin froze as Ryuuji grasped Rin’s cock and stroked carefully up. The spikes along the head kept him from making smooth strokes to the top like he’s used to, but after a couple tries he learned that if he let his forefinger tuck under the spikes on the upstroke, he could swipe his thumb over the head. On one of those strokes Rin let out a loud, long moan. Ryuuji looked up from where he gaze was locked on Rin’s cock to see Rin’s face screwed shut, pleasure etched into every feature.

“Here,” he said, his voice gravelly and low. “Scoot up.” Rin nodded frantically and slid closer until Ryuuji could grab them both in one hand. They let out a groan in tandem at the pressure and heat. He released them just long enough to lick his hand, smoothing the way for them both before grabbing them again.

Ryuuji’s hips surged under his strokes and Rin snapped his own, thrusting into the tight heat, the sound of the slick noise of skin-on-skin and their harsh breaths the only sound in the room. It wasn’t long until Rin leaned forward ‘til his face was buried into the space between Ryuuji’s neck and shoulder, an arm hooked around to grasp bruisingly tight on his other shoulder and his hips working hard. Ryuuji pumped harder with his hand, seeing the precipice approaching and chasing after it as fast as possible.

There was a bright flash of pain and the shock of it sent him careening over the edge, warmth spilling over his hand with a shout, a muffled groan from Rin and secondary spurt evidence of the other boy following him breaths later.

He sat and breathed for a long moment, his free hand still on his and Rin’s cocks, his other arm wrapped around the other boy from where it ended up at some point. The other boy was still slumped over Ryuuji, tremors occasionally shivering their way through his body. After a while he sat up, spine liquid, and Ryuuji pulled his hand away from their laps with a grimace.

His eyes nearly bugged out when Rin snagged his hand and delicately licked their combined seed off with tiny little kitten licks. Ryuuji’s cock gave a valiant twitch at the sight, but there was no way he was getting it up again.

Rin must have seen something in his expression, because he flushed and ducked his head. “It’s not like we got anything to clean it up with, or anything,” he mumbled, sliding off of Ryuuji’s lap and stretching before tucking himself back into his pants with a grimace. Ryuuji echoed it – things would get sticky in a little while.

He reached down to zip his own pants up when a sudden snap of pain in his shoulder made him hiss in pain. He turned his head to look where the pain was coming from and saw a round mark on his shirt, small dots of blood spotting it. He slapped a hand over it and glared at Rin. “Did you just bite me?” he asked, aghast.

Rin smirked, twisting his back until it popped. “Yup,” he said.

Ryuuji rolled his eyes and tucked his dick in, grimacing at the feel. He was going to have to take a shower as soon as he got back to the dorms.

He stood up and stretched, glancing at Rin from the corner of his eye. The kid looked fine, from what he could tell. He was poking around in another box, his back to Ryuuji. He frowned, remembering how unsure Rin was earlier, and how upset he had gotten. To suddenly see the kid acting like nothing had happened already was… jarring. He felt a ball of guilt settle into the pit of his belly: he knew Rin was head-over-heels over that Moriyama girl, and he didn’t react at all similarly to any of their male friends. Rin was probably straight as an arrow and freaking out over getting jerked off by a guy.

“Hey,” he said, watching and Rin’s back started to stiffen. “Are you okay?”

“I’m fine,” Rin said, facing away.

“If you’re sure,” Ryuuji said slowly. “I’m sorry we had to do this, you know that, right? I didn’t want to force you into-”

“I said I’m fine,” Rin bit out, tail lashing behind him.

Ryuuji let out a breath. Fine.

They kept to opposite sides of the room for about half an hour until there was a sudden bang from the top of the stairs, and then a voice calling down: “Rin? Suguro? Are you two down here?”

“Yukio?”

 

“Okumura-sensei?”

Rin and Ryuuji said at the same time and rushed to the stairwell.

The door was open and Yukio and the rest of the Exwires were gathered at the top.

“Are you two okay?” Shiemi asked, her face a mask of concern and her hands fisted in front of her nervously.

“Y-yeah,” Rin said, eyes wide and on the verge of panic.

“The door locked behind us and we couldn’t get it open,” Ryuuji explained. “Are you guys alright?”

“Yeah,” Yukio said, and sighed. “It seemed like the report we got was faulty though: instead of just a ghost there was also a family of imps. We even found an incubus that was trying to escape.”

“An incubus?” Ryuuji said, surprised. “Really?”

“Indeed,” Yukio said. “We managed to seal it away in one of the rooms. I don’t want to risk any of you, so I’ll come back with a more advanced team to fully clear the house.”

Ryuuji just nodded, and headed up the stairs, Rin not too far behind him.

“Did you happen to catch sight of anything while you were down there?” Yukio asked.

Ryuuji opened his mouth to answer when Rin let out a dismissive noise. “It was boring as hell down there. Can we get going?”

Yukio nodded and took out the key that would send them halfway around the world back to the Academy. As they waited to get through the door, Ryuuji and Rin’s eyes met. Rin’s face turned immediately red and he pointedly looked away.

Ryuuji held back a sigh: they just started getting along again and then this had to happen. Maybe it would have been better for them if they waited for the rest of the group and get ‘taken care of’ by one of the physicians back at the Vatican. At least it wouldn’t have been as personal.

Ryuuji told himself to give the other boy some space once they got back. If this was a wedge that would drive between them, then so be it: he vowed that it wouldn’t interfere with any of their missions, but they didn’t need to be friends to work together. But if they could work through it, all the better.

Whatever happened, Rin would have to make the next move.