Atsushi could barely hear what was going on around him and he could see even less. Everything was a blurred, idiosyncratic haze except for the unbearable warmth suffocating him. It felt like every inch of his body was wrapped in layers of heavy blankets, but he could see nothing there except his clothes. He whined, tearing at the fabric. He couldn't think and breathing was even harder,
"...he's in heat," Akiko's voice faded in
"How is that possible?" Kuni.. Kunikida? Yeah, that was Kunikida's voice. Atsushi sniffed the air, arching off the bed to try to get a better scent out of it.
"It's not normally present in regular humans, but because of his ability…" Atsushi didn't hear the rest of that sentence; it was drowned out by another loud whine from him. Both Akiko and Kunikida snapped their attention towards the whitehaired boy who dying of heat.
"H-Hey Atsushi," Kunikida started anxiously, "how are you feeling?" He took a seat next to Atsushi's infirmary bed, but refused to look at Atsushi in the state he was in.
"It's too hot," he panted, tugging at his clothes. He had only just now realized his hands were paws, and he was willing to bet his tiger ears and tail were out as well. He tried to switch back to normal, but found he couldn't.
"Wh-what's happening to me?" He whined as the heat got worse, kicking off whatever remained on the blankets and sheets; he had shredded them to pieces with his claws while he slept.
"In basic terms, your tiger side is in fucking season and Dazai is MIA," Akiko started, "you can make it through without, but I wouldn't mind pegging you either~" Atsushi shook his head. He could feel the tiger taking over, his bones rearranging. He could hear frantic yelling as everything went white, then he saw a syringe sticking out of his leg; he was sedated. Atsushi growled,
"Where's Dazai?" He ripped the needle out of his leg, his eyes glowing yellow, "find Dazai," his tiger was in control, even if his body was limited. Suddenly he was on the other side of the room, leaning into a new dent in the wall. Dazai was nearby, he could smell him. Atsushi had only just made it outside the infirmary before he was face-first in Dazai's chest, gasping for air. Dazai smiled, hugging Atsushi close as the boy's body temperature slowly started to fall. Dazai's body was so cold,
"Helloooooo, Atsushi," Dazai teased as the boy melted into his arms, "Did you miss me?" He waited a moment for a response before realizing the boy was passed out in his arms. Kunikida and Akiko came out of the infirmary, hot on Atsushi's trail until they saw Dazai. Kunikida sighed with relief,
"He's been a fucking nightmare."
"Is it what I think it is?" Dazai asked, gesturing to the cooling dark blush that painted the boy's skin unevenly. Kunikida nodded,
"Like, a real-" Dazai started as he picked Atsushi up bridal style,
"Yeah. He's in heat." Kunikida said quickly
"And he held out for me?"
"You drove him into it," Akiko interjected sorely,
"Does that mean I get a week off specifically to fuck him?"
"Yes, but you're paying for all damages done to the agency and dorms for starting this," Kunikida looked irked.
"The sedative I gave him was extra strong. If you keep touching him, it'll take about 12 hours for him to wake up. If not, probably ten minutes, if that. Have fun." Akiko said dismissively as she walked back to the infirmary. Dazai nodded, heading back to the dorms. Today was only getting better. He couldn't wait for some alone time with his boyfriend, but if Atsushi consented during his "heat," could it really count as consent?
Dazai pushed through the door to his dorm, taking a moment to appreciate the damage done to the hallways and other dorm rooms. It was spectacular, and all because Dazai wasn't there. Atsushi must have been really concerned for him,
"Or really horny," Dazai muttered to himself as he glanced at the dildo still suctioned to the floor near his futon. The brunette began his googling of everything from tiger mating behaviors to heats in people with animal shapeshifting abilities. There wasn't much information on the latter, but what he could find is that heats in ability users lasted between three and five days, and in normal tigers, around six days. He kept a hand on his boyfriend to keep him from waking up too early, choosing to wait a while longer so he could clean up his trainwreck of a room and- not that he'd ever admit- mentally prepare himself for Atsushi's first time. He made sure to maintain contact with Atsushi as much as possible so the boy wouldn't wake up too early while he gathered up piles of shredded clothes and blankets to toss out; how did Atsushi manage to destroy so much? Dazai sighed, figuring he was as ready as he'll ever be to try not to fuck stuff up again like he did with Akutagawa, but he probably needed to shower first given his activities earlier that day in the dungeon. He couldn't risk Atsushi finding out about that, not before he was properly trained.
Dazai let go of Atsushi and went to the bathroom, stripping before stepping into cold water; getting rid of Aku's scent was more important than temporary comfort. He dumped a big glob of soap onto his chest then worked it down, paying special attention to his dick. He had only been scrubbing for five minutes when he heard rustling in his apartment, and a very vocal Atsushi. He couldn't quite make out what the whitehaired boy was saying, or if he was saying anything at all, but he knew what was going to happen regardless of whether he stepped out of the shower right now or in five minutes. He had been showing all the signs of normal tiger mating behavior.
First, he claimed his territory: Atsushi had made out with Dazai in public just to scare off any other people who might have wanted him, or been wanted by him. Second, he was very vocal about what or who he wanted: he had made it very clear that Dazai was his to everyone around. Third, he was circling Dazai, tracking him. That's how he found Dazai before in the fishing nets, that's how the tiger ended up at the Agency in the first place, and how Atsushi ended up fully clothed in the shower in front of him without noticing until now.
Atsushi looked fierce and possessive. The tiger was definitely in control; a growl confirmed it. His eyes glowed brightly in this dimly lit room as water washed over them both. Dazai placed a hand on his shoulder and activated his ability, canceling out Atsushi's,
"Atsushi," he started with a concerned tone, "D-Do you.. have you been aware of your actions over the past few days?" The boy leaned against him, fatigued,
"Not really. It's like I've been running on autopilot, but I remember bits and pieces. I remember trying to find you more than anything,"
"Your tiger has been taking over-"
"I know why that's happening and what it involves. W-Would you help me through it?"
"Are you sure this is what you want?" He nodded,
"We should set up some boundaries before we start then," Dazai suggested, Atsushi hugged the older man gently,
"Please be gentle with me the first few times, after that, I trust you." The brunette leaned down, kissing his boyfriend gently. He didn't care how long it took, he would get Atsushi into a good mood for his first time and make it a happy memory. This was special, he couldn't let it be remotely similar to Akutagawa's; it had to be romantic.
Atsushi leaned into the kiss, pulling Dazai closer. Dazai pressed him against the wall, slowly stripping him of his wet clothes as the boy's hands moved up to his shoulders. The brunette grabbed him by the thighs, lifting him up as Atsushi wrapped his legs around his waist. Dazai kept Atsushi pressed against the wall as he held him up with one hand and turned the water off with the other.
Atsushi was lost in the kiss, unable to think of focus on anything else. He didn't realize Dazai was carrying him until he felt the futon under his back, but that was lost soon enough as well to the sound of a bottle cap clicking open and sensation of fingers slowly pressing inside of him. He broke the kiss with a loud moan and a deep arch; Dazai could have sworn he was looking at art before a warm body rocking against his fingers reminded him this was better.
"D-Dazai-san, I-I'm still-" he cut himself off with a gasp, "are you using your ability?" The brunette kissed Atsushi's cheek,
"Yes, I want you to remember your first time."
As much as he would have liked to drag this out for hours on end just to watch Atsushi cum over and over again, he could only use his ability for so long. He kissed and bit along Atsushi's neck, waiting until he was on the edge of an orgasm before removing his fingers. The younger male whimpered at the loss, involuntarily thrusting his hips up against Dazai's. Dazai leaned down, kissing him deeply as a distraction while he gently pushed his erection inside. Feeling Atsushi tense underneath and around him, he reached down and began to stroke the younger male's erection slowly, rubbing his thumb around the head.
It didn't take long for the whitehaired male to adjust, based on the way he rutted his ass against him. Dazai started off at an easy pace; he didn't want to overwhelm the boy, but the noises he made was making this hard. He leaned down, nibbling on Atsushi's ear,
"Atsushi," Dazai stilled, holding the younger male in place,"do you still want me to be gentle?"
"N-No," he panted out, "please be rough with me," he begged, clenching around Dazai's dick as a vain attempt to get it moving again,
"Are you sure this is you and not the heat? I'm trying my best with my ability but-" Atsushi pulled him into a deep, passionate kiss; effectively cutting him off from that sentence. He pulled one of Dazai's hands up his body, the other one down to his ass before breaking the kiss,
"If I can walk tomorrow, I'll be disappointed," Dazai growled,
"The safeword is red. Repeat it to me."
"Red."
"Good. Say it if you want me to stop. If you don't, I'll assume you want whatever I do, even if you say "no" or "stop". Got it?" He had barely started to nod when Dazai pulled out, flipping him over and slamming his face into the futon then thrusting back into the boy in one fluid motion. Atsushi yelped loudly, but didn't complain when the brunette was suddenly pounding balls deep inside of him. He could barely keep his hips up underneath the older male, especially when a hand was holding his face down into the futon. He was pretty sure he was screaming from the mix of pain and pleasure, but he didn't care and neither did Dazai if the pace was anything to go by. His legs began to quiver, his lower body suddenly falling. Dazai pulled him back up with one hand, spanking his ass hard; he let out a very loud, high pitched moan from that specifically.
It was better than anything he could have imagined, and he would be able to remember it. He tried to push back against Dazai, but he couldn't keep pace with the older man. He felt teeth sinking into his shoulder and arched into it. He felt blood running down his back and begged for more. He wanted to feel these for weeks afterwards. Dazai leaned down a little closer, placing a kiss behind his ear as his hands went down to hold up his hips,
"I can't understand you, Atsushi~ you make think you're being coherent, but you're not. Maybe I should record this so you can hear it," he shook his head, whining. He made sure to say the next thing very loudly and clearly,
"Don't get my face on video!" Dazai nibbled on his ear,
"Is that your only request for the video?" Atsushi shook his head as Dazai continued to mercilessly pound into him,
"Don't share it with anyone, a-and nngh~!! Don't misplace it a-anywhere it'll be foun-ahh~!!"
"So what you're saying is, you want me and you to be the only people who see it? If I hide it really well, and make sure no one else ever sees it, can I include your face in it?" Atsushi was too lost in pleasure for conversation and Dazai knew it. The younger male screamed out a string of "yes, yes, yes~!!!" as Dazai changed the angle slightly, hitting his prostate head on with each thrust. The brunette smirked, setting up a phone camera right in front of the blushing boy; it was recording nicely, showing everything from Atsushi on the floor to Dazai's bandaged neck as he sat up. That's right, the bandages stayed on during sex.
Atsushi opened his eyes and watched his eyes widen with shock in the camera before they settled at a half lidded stare at the camera. He watched himself curiously as Dazai fucked him mindless, and understood why Dazai wanted to see him like this in a video. He watched as the older man leaned down and bit him more, making eye contact with him through the camera. Atsushi blushed deeper, moaning the brunette's name as teeth sunk into his back. The man licked blood off of his lips as he moved up towards his head, biting more and more.
Dazai reached down and started stroking Atsushi's erection as he felt his orgasm coming on, stroking in time with his thrusting. Atsushi threw his head back, whining loudly as he came. Dazai continued pounding into him even after the boy came, earning more whines and moans of "too much~!!!" and "Dazai~!!!!" from the overstimulated boy beneath him. Atsushi came a second time before Dazai stuffed him full with his hot cum, the boy went limp under him, dragging Dazai down with him this time. The brunette laid on top of him, placing gentle kisses in his hair,
"How do you feel?" He could see from the camera that Atsushi's eyes were closed and he was pretty still,
"Tired, and sore; but in a good way," he mumbled quietly, Dazai slowly started to pull out, being as gentle as he could. He flopped down beside Atsushi, cuddling the boy,
"You can record me, but don't let it get out," he snuggled up to Dazai, resting his head on the older man's chest, "I don't want anyone else to see me like that," Dazai kissed the top of his head, gently petting his hair,
"Do you want me to record you during your heat? I'm not going to be able to keep you lucid like this the entire time," Atsushi nodded shyly, hiding his face in Dazai's shoulder. Dazai reaches over and ended the video before turning the phone off,
"I want to watch it with you later, when you're not in heat," he gently trailed his fingers down from Atsushi's head to the bloody bite marks, tracing out patterns on them. He could see Atsushi blushing and hear his quiet gasping. He could feel Atsushi starting to rub his legs together,
"Atsushi, do you like pain?" The whitehaired boy nodded reluctantly, moaning softly when the brunette pressed into a scabbing bite mark,
"Would you be interested in bdsm?"
"I don't know. I-I can try it out."
"From now on, whenever I call you "Pet" or "Tiger," our session has started, regardless of where we are or what's happening around us. When it starts, if you do what I want you to, you'll be rewarded; if you don't, you'll be punished. You can always refuse if you want to though. If you say "red" I'll stop immediately and I won't continue, if you say "yellow," we'll stop for a little bit and talk it over. When I say your name, the session is over. Do you understand?" He nodded, blushing deeply all over,
"One more thing, try to call me "Sir" during our sessions,"
"Why?"
"You're a submissive when it comes to sex, whether you realize it or not, the title just cements it. Also," Dazai shifted, moving down until he was face to face with Atsushi, "I think you would be really hot moaning out "please Sir, let me cum~! I need you, Sir, please~!!" The brunette said, mimicking Atsushi's voice. The younger male whined, covering Dazai's mouth; he was so embarrassed. Dazai chuckled as he gently removed Atsushi's hands, kissing Atsushi sweetly. They didn't say or do anything for the rest of the night, besides cuddle until they fell asleep.