The train at seven AM. Back when he was a school student, even in a relatively large town like Kunugigaoka, it wasn't so bad in the direction he took. But this is properly Tokyo now, and millions have jobs to get to. It was easy to get used to, even if Nagisa doesn't particularly enjoy being squashed up against others, he can at least slide his headphones in and try and ignore it until his station.

It's the same deal every day. He awkwardly pushes to the front of the train crowd at Hashima station, rushes up the escalator even though he's not running late, and scans his commuter pass through the ticket gate. He catches a glimpse of his remaining total as he walks through, and mentally reminds himself to charge up his IC card after work. From there, his school is about a ten minute walk, which usually gives him plenty of time to internally go through the day's lesson plans one last time.

Only, this morning the only thing he can think about is Karma's hands on him. It's ridiculous and he knows it. It had only been (shamefully) about five minutes of his life, yet there it is playing in this constant feedback loop. If Nagisa could yank the memory right out of his head… But he can't. How's he even going to look Karma in the eyes again?

"Morning, Shiota san," one of the receptionists says, as he writes himself in.

He lowers his head respectfully. "Good morning, Yoneda san. How was your weekend hike?"

"Quite tiring," she smiled kindly, "my husband's crazy, for insisting we climb all the way to the summit every other weekend. Gets the kids out of the house, though."

Nagisa used to climb a mountain every day for class, but he just smiles and laughs. It's nothing like Kunugigaoka, but it's not like there's no green space in Tokyo, most of it left wild enough that it gives the impression of actually being real. Still, Yoneda's one of those few people who actually grew up in the city, so it must feel like an actual escape for her. Maybe Nagisa should visit home one of these weekends…

He just nods again, and goes on to his classroom. His experience at Paradise High School was interesting, and he's proud of what he managed to achieve there. But, that was only to complete his degree. Although he'd been offered a permanent position, Nagisa ended up looking elsewhere. At the moment, he teaches the first year class at Heibon Junior High, and whilst it's easier than a bunch of unruly seventeen year olds, it presents its own challenges.

"Morning, Watanabe san," Nagisa greeted the girl already in her seat. The others… they all show up as close to the morning bell as they push it.

She attempts a smile. "Morning, Nagisa Sensei."

"Interesting book today?"

She looks up at him from behind it, and shrugs.

He's trying to get through to her, it just might take him a little while. Honestly, Nagisa's a little bothered by it, since the winter break is rapidly approaching. But there's still time, and she's still young. As it turns out, trying to build any kind of trust with a twelve year old is incredibly difficult. It's a difficult jump, starting junior high.

Nagisa doesn't mind her being here so early, at least, and he thinks Watanabe appreciates that. He just sits down at his own desk and sorts out the things he has to. The papers he graded, homework to hand out, parts of his lesson plans… it's good to be organised. He extends a smile and a welcome to each one of his other students, as they filter in, chatting excitedly behind their desks about their exciting weekends.

"Good morning, everyone," Nagisa stands up properly, "let's start today's class."

Nagisa's classes have a general routine, too. He starts the morning with roll call (everyone's here today), then he moves onto the first lesson, whatever subject that may be. And classes proceed happily until lunch break, where his students all run off to the school cafeteria (this place is lucky enough to have one of those), and Nagisa takes a bit of the alone time to check on his afternoon lessons.

He frowns when he realises that today, of course, the usual science lesson has to be replaced with sex ed. He wasn't allowed to make his own lesson plan, of course, not for something like this. Honestly, Nagisa hasn't even read over it for a while, which isn't like him but he's not usually giving talks about uncomfortable subjects.

He reads it over, and then his stomach twists in alarm. He… did he read it wrong the first time? Nagisa flicks through the sheets, and realises that no, there's definitely something wrong here. This weeks lesson is all about general puberty things. Well, that's fine. Not a lot to do with… reproductive stuff. Huh. He looks again, and as it turns out, that lecture is actually due to take place next week.

Somehow Nagisa feels bad that he got that handjob under false pretences. Kind of.

The bell rings, though, and lunch break is over. Crunch time. Surprisingly, Nagisa can detach himself from things that are purely science. Even if he has to listen to a group of twelve year olds snicker at the word 'penis', he can get through it. At the very least he has a whole week now to get to the really awkward condom stuff. A whole week of practise! Solo practice.

Thankfully, in general his students are pretty good about the whole thing. Some even take notes! He gets it, though, puberty can be a scary time. There's nothing more he can do, except give them the best go ahead as possible. They'll figure it out eventually. Not by next week, though, when he actually has to give the condom lesson.

Maybe if he pretends everything is okay? If he says everything's okay, then by some law of the universe it has to be okay. Going with that, Nagisa reaches for his phone after class finishes. He and Karma are friends, just normal friends, so it would be weird not to text him. Especially after he helped him, and Nagisa left so abruptly.

Nagisa: My lesson went fine.

Nagisa: Thank you.

He doesn't get a response, or even a 'read' receipt, but Nagisa pins that down to Karma's different schedule. It's not like he needs a response, right? Nor does he need to specify what lesson it actually was. Karma doesn't need to know. All he needs to know is Nagisa is somewhat grateful, it's fine, and they should just go back to normal. Sure that may have been his first… sexual experience… but that doesn't mean anything.

Handjobs don't count as virginity, right?

Nagisa tries his absolute best not to think about it, as he journeys home the same depressing way that he came. Thankfully, most of the companies let out of work a couple of hours after school finishes, and since Nagisa doesn't have to chaperone any club activities he's able to escape the endless sea of Tokyo commuters. If only his whole life wasn't here now, he'd move away to some remote mountain village if he could.

Because his life is so normal, he walks into the konbini closest to his apartment, and scouts out his options. Maybe it's terrible, a symptom of had habits during university, but Nagisa's not the best cook. Why spend a bunch of money on vegetables and meat he barely knows how to prepare well, when he can get tasty food for much cheaper? Even if it's a little depressing.

But it's normal, eating dinner alone most nights as he grades homework. And then moves onto checking over his lesson plans for tomorrow, before writing for a few days in advance. Nagisa likes to be as prepared as possible. He'll have his break… during the few months of summer when there's no school, maybe.

And because things are normal, Nagisa doesn't even think about it when Karma doesn't reply to his message. He keeps going, the daily grind, right up until the weekend. A part of him is relieved. After all, his normal life has been… well, normal. And with each day that passes, the more he can put any blips to that normalcy right behind him.

School is an every day affair, of course, and he spends his free moments focusing entirely on it. He doesn't need Karma's touches, or anything else from him. Though, Nagisa doesn't feel much like touching himself either, but then again he's never been particularly influenced by desires like that. He can't risk his mind wondering, because once that happens he's surely done for. No, perhaps some space between them is a good thing.

But then, come Saturday morning, he finally receives a text.

Karma: Do you still want to hang out later?

An olive branch, then, finally. Nagisa would never dream of saying no. Unless somehow crazy busy, it wouldn't be normal to say no. So he knows he can't. A part of him is a little annoyed that Karma waited this long, but perhaps he was giving him space. Not that Nagisa needs space. If he's going to stick with this normal thing, he needs to see it through though. He's adult enough at least to know he can't avoid Karma forever.

Nagisa sends his reply, and tries not to think too hard about it. He goes about his day off from school as he would any other time, once again crunching over his desk as he figures out his next bout of lessons. Then he checks his emails thoroughly, just in case any of his students has a problem with any of their work. When there's nothing to deal with there, for the first time all week he tries to cook himself something.

Well, he's not sure how much cooking is actually involved when it's frozen udon. It involves boiling water on a stove, and adding ingredients one stage at a time, so it's close enough. Nagisa used to make breakfast for himself and his mother, of course, he's not completely useless. He doesn't stray outside of the instructions though, mixing the dashi with the water and just about guessing when the noodles are soft enough to eat. If there's alcohol involved later, the more he eats now the better.

Just to further is point of being completely and utterly normal, he doesn't dress like anything special when he leaves. Not that Nagisa would be able to do that if he tried, but it's the determination inside him that counts. He's going to have a nice evening catching up with his best friend, and that's absolutely it. The one major social interaction he manages to find time for within the week.

Nobody pays him any attention during his journey to Karma's apartment. Why should they? He's just one guy, in and endless sea of people. So it's not weird when he gets off at Karma's stop, and walks the ever familiar way to his home. Nagisa used to have to use google maps, for the first few times, but not anymore. He knows it off by heart.

"Hi," he says, when Karma answers the door just two seconds after he's rung the doorbell.

"Come in," Karma steps aside, and he feels awkward.

Nagisa practically ducks his head as he goes inside, and immediately concentrates on getting his shoes off. Horrifically he's convinced Karma's just watching him, but once he's lined them up neatly against the wall, he realises that he's stood there completely alone. Which is fine. He's been here enough times that he doesn't need Karma to babysit him.

"Beer?" Karma asks, bent over the fridge.

Drinking isn't a good idea. Unfortunately, Nagisa's well aware that last time, he was definitely sober enough to agree to what happened. But, alcohol still made his tongue looser, and right then the best thing would be to just keep his mouth shut. This day is just a hurdle they need to get over, and then it'll be gone from his memory.

"M-maybe just one."

That's a mistake already, but it's too late now, because Karma tosses it over and cracks open his own drink. Pensively, Nagisa sits himself down on the sofa. It's a little less cold this week, so at least they don't need to huddle under the kotatsu again. He opens his beer and takes a sip, wincing a little as the alcohol burns down his throat. Surprisingly, it doesn't make him feel any better.

For the first time, being with Karma feels really awkward. He doesn't know how to put it into words, because he's not exactly uncomfortable, but it's weird. It's like all of a sudden, Nagisa's overly aware of him now, right down to counting his breaths. Despite all his efforts, he knows this isn't normal, but he has no solution. He's not panicking, is he?

"Nagisa," Karma starts, and he even jerks in response.

"S-sorry," he apologises, though he doesn't even know what for.

Karma grabs him by the shoulders, then, twisting him to face him properly. "Cut it out."

"Cut what out?" He plays dumb.

"Look," Karma gives him a look like he knows exactly what Nagisa's doing. "Do you need to talk about this?"

"T-talk?"

Karma lets go at him, at least, but shuffles around so he's sitting cross legged on the sofa. "I know what you look like when you're thinking too much. So if you have something to say, just say it."

An open invitation, then. The thing is, Nagisa doesn't even know what he has to say. What happened last time he saw Karma… that was definitely a terrible mistake. But he thought he'd be able to put it behind him. Now… why can't he get it out of his head, still? Is their friendship really ruined by something so ridiculous as an ill advised hook up? All he wants is to forget it, but…

"Did that count as virginity?!" Nagisa finally bursts out.

Karma just blinks, before he whole body laughs. "What."

Great, now Nagisa just feels stupid. But he's in the midst of a car crash now, and there's no way of escaping it. At the same time, though, a part of him is glad that it's Karma he's with. He can't imagine being this embarrassed in front of anyone else and, well, he and Karma have pretty much already seen the worst and best of each other.

"Hey," Karma says once he calms down, "it's kind of complicated. Some people might count it, others think you have to go all the way. Do you feel like a virgin?"

Karma has a point, honestly. A really good one. Maybe Nagisa's brain has been warped by society around him, but now he thinks about it, he knows that it's not a black and white issue. For him… he always thought of virginity like it had to penetrative… Even though that didn't mean the same to everyone else, now he really thinks about it, he still feels very virginal.

"Yeah," he replies. He expected to feel far more… whole. "I guess I do."

Karma looks at him. "Is that kind of thing a big deal to you?"

He thinks about it. Really, it's more that sex has never been at the forefront of his mind. He never really thought about it that much when he was younger, and even when he got to high school age, he was so focused on studying and getting himself to a position where he could fulfil his dream of becoming a teacher. Now he'd achieved that goal, he's still working on being the best he can possibly be. He hadn't even had the time during that to think about relationships and dating, and he'd always thought that it would happen just like that.

Nagisa supposes it's the right time for honesty, though. "It's not a big deal, exactly, but… This kind of thing has never been a priority, and now I don't know what to do. Or if I even want to do it."

"I think you wanted to," Karma shrugs, "you were hard."

"So were you."

"Yeah," he grins, "but I was getting jerked off. You were just watching."

Nagisa actually squirms at the memory. He's spent the entire week trying to repress it all, but now here Karma is, quite honestly forcing him to remember. He doesn't really know why he had the reaction he did, everything happened so fast back then that he'd barely had time to process the state of his arousal before Karma was suddenly wrapping his hands around him.

"I-"

"It's tough," Karma goes somewhere in his head, deep in thought. "Most people fumble through as teenagers when it's mutually uncomfortable and learn practically like that, so now there's an even playing field and at least they generally know what to do. But you're really a beginner."

He doesn't want to ask, but somehow it falls from him anyway. "Was it really that bad?"

"Well," Karma starts, "you definitely need more practise."

As if on instinct, Nagisa jerks away from him.

He has the nerve to roll his eyes a little. "I swear, Nagisa, I won't lay a hand on you. Not unless you want me to."

His lips parted. Unless you want me to. What kind of leading question is that? He doesn't want Karma to touch him again. Even though it felt good… It's just a terrible idea no matter how he looks at it. But, now Nagisa's picturing it again, and even though it's really not the right time, he can't help but feel a little heated about the whole thing. Unfortunately, that means his face visibly flushes.

"I, uhm, b-"

Karma notices. "You do," he laughs with an evil glint, and his face goes dark. "Did you have the hots for me this entire time? Ha! Then I guess I did you a favour, then! Don't worry Nagisa, I don't mind if you're attracted to me. Do something about it, c'mon," he play smacks him, as though this is all a joke.

He's not sure what Karma wants from him, but it doesn't matter, because he just stands up. "I'm leaving."

"Wait," Karma practically tosses his body across the sofa dramatically, "I said I didn't mind."

"This is so dumb," he says mostly to himself.

"Well, if you want to learn," Karma shrugs, and then downs the rest of his drink in one go, wincing as it travels down his throat. "It doesn't have to mean anything. Like I'm your tutor or something."

Why would it mean something? "Like a sex tutor?"

"Sure," he's nonchalant. "You know, so you can figure out what you're doing."

Nagisa just stares blankly at him. "That sounds like a terrible idea."

It really, really is. As much as Karma constantly makes fun of him, Nagisa knows he'd trust him with his life, but this is different. Being his best friend and… sex… it doesn't sound like it will end up good. He understands what Karma's saying, that it's better to get out of the awkward stage now so that he doesn't have to go through it when he's with someone he actually likes. But that doesn't mean it won't have consequences! Plus, friends don't just sleep together.

"Alright," Karma still maintains his composure. "Off you go then."

Nagisa frowns, even though he's the one who wanted to leave. "You're kicking me out because I don't want to have sex with you?"

"There's plenty of things aside from sex," Karma points out. "We already covered hand jobs. That can be unit one, or something. Does that mean we need a pop quiz?"

He deflates. "Are you really serious about this?"

"This teaching thing is kind of fun," Karma looks as though he's about to crack his knuckles and start a 1980s training montage. "I see why you're so passionate about it."

"D-don't corrupt my career like this!"

Karma himself stands up, approaching Nagisa like he's crowding him in. "Why don't you go ahead and call me Karma Sensei?"

Does he have some kind of weird teacher fetish? "U-uh," he gulps, "I didn't agree yet."

"Yet, huh?" Karma has the nerve to grin. "This is an expiring offer. Going once, going twice-"

Something possesses Nagisa, and he grabs Karma by his shirt, as though he's about to square him up for a fight. That, or kiss him. Whichever one it is, Nagisa loses his nerve before he can actually do either, though, but he doesn't let go of him. All he knows is that he's stepped straight into quicksand, now, and he can feel himself sinking no matter what he does.

"Education purposes only," Nagisa says eventually, looking him right in the eye.

Karma nods. "Of course. We're adults here. It'll be easy to separate class time from hang out time."

Nagisa finally lets him go. "What's in it for you, though?"

Something crosses over his face. "I mean, there's worse ways to spend my time than getting my rocks off. But call me generous, helping a friend in need."

Generous. "I-"

"Go sit back down on the sofa," Karma says, "I know exactly what to show you."

When Nagisa does it, he knows he's forfeited his last chance to do back out of this. His heart is beating fifty miles an hour and he's just a little worried it might actually burst out of his chest. Are they really going to have sex? Just like that? Nagisa had always thought he'd have more time to process it than this, but…

Karma's looking at him like he's evaluating him. Scrutinising. He's moved right in front of him, and since he's standing his height feels even more imposing. Nagisa shifts awkwardly, not sure he's comfortable with being watched like this. But then Karma apparently decides what he's going to do, and sinks down to his knees. Considering the length of his thighs and torso, he's still tall like that.

"Are you okay?"

Nagisa nods, even if he's not sure whether that's the truth.

"Good," Karma leans forward, planting his hands on his thighs. "You have to remember to check in, every now and then. But if there's something you really don't like, you can say 'stop' at any point."

It's ridiculous considering what happened last time, but Nagisa shudders a bit at the feel of Karma's hands. Whether it's excitement or apprehension he's not sure, but with sudden clarity he knows he wants to feel more of it. So he does his best to stay still, as Karma's hands drag down his legs, before he leans forwards again and his fingers curl around the fastening of his jeans.

Nagisa can't help looking away. It's embarrassing, to have his clothes stripped so easily like this. He can only sit there and shift himself where Karma guides him, letting him pull his trousers down his legs and then off, pooled onto the floor somewhere. He's not entirely exposed, considering his boxers are still on, but he kind of wishes he'd worn something better. Not that Nagisa paid much attention to his underwear, ever.

"Nagisa," Karma pauses, "you can't learn anything unless you watch."

He forces himself to look down, and it's nerve wracking. At the same time, though, there's a whole other feeling. Nagisa's not really sure if it's arousal or apprehension. Last time at least, everything happened so fast there was no real anticipation, not like this. But there Karma is, on his knees in front of him, and it's so surreal and exactly like something out of a wet dream that his entire body is confused about how exactly to react.

"Move forwards a bit," he instructs.

Nagisa tries his best to shuffle. "Like this?"

Apparently not, because Karma yanks him forward with a fierce grip at his legs, and Nagisa's head spins. He knows for a fact, then, that he's growing hard. Even though there's a small part of him that knows that's what's meant to happen, it's a little alarming. He does try to relax, though, even though that's easier said than done when Karma actually grabs his budding erection.

He even has the nerve to look self satisfied as he does it, raising an eyebrow before rubbing him there with purpose. Nagisa can't help the way his toes curl up at the feeling of being stimulated. Obviously, he hadn't even considered touching himself this week, so the last time was also under Karma's hand. It feels even better than he remembers, and there's still a barrier of fabric in the way. Shamefully, it doesn't take long at all before he's straining against the boxers, and all he wants is them off.

He still tenses, though, when Karma does just that. It was a more even playing field, when they were both half naked, but now Nagisa feels a little uncomfortable under the attention. Not enough that he has any intention of stopping, though, because Karma's bare hand around his erection feels like fire and he instinctually needs more of it.

"Don't freak out," Karma warns, and then his head disappears between his legs.

At first Nagisa feels Karma's other hand grip at his thigh, the first gripping him by his base, before the most impossible heat. At least before, he wasn't entirely blind to what it felt like to have a hand wrapped around him. It's definitely different, but a hand is a hand no matter who it's attached to. But this is Karma's mouth, and his lips.

In reality, he hasn't actually taken much of Nagisa's length inside. Nagisa keeps to his word, and does keep his eyes on him. But it's hard to actually concentrate on what's happening when Karma's lips are wrapped easily around his head and now he's sucking. His fingers dig into the sofa cushion for something, anything, to ground him to the mortal world.

He clearly knows what he's doing, because Karma looks up and makes eye contact with him then, his gaze low and seductive. He has the nerve to smirk (which Nagisa thought wouldn't be possible with his mouth otherwise occupied), and lets the head fall out with an audible pop. Before he has time to mourn the loss, his eyes sink close like he's genuinely enjoying it as he trails attentive almost wet kisses to the shaft. And Nagisa can barely stop himself from coming right then and there.

"Lesson," Nagisa's voice comes out as strained. "This is supposed to be a lesson."

Karma looks up at him again, which is just too seductive whist his lips are on his erection. "Right."

"S-so teach."

"You're not learning?" Karma pulls away, and Nagisa regrets everything. "Well, blowjobs aren't just about sucking. There's kissing," he resumes the action of attaching his lips to the shaft, "tongues," which he demonstrates by licking him root to tip. "But sometimes the basics are just as good." With that, Karma takes him all the way to his base.

Nagisa can't help but cry out in a kind of shock/alarm, though most of it is the onslaught of pleasure. He's never felt a sensation like this, and he feels a slight twinge that he might get addicted to it. Since he's meant to be paying attention, Nagisa notes that there's definitely finesse about this. Karma's sucking him just right and skilfully, like he's trying to draw out as much as he possibly can.

"Of course," he pops off entirely and Nagisa wants to scream, "there's no one size fits all for sex. You just have to try things out, pay attention to whatever your partner reacts to. The only real rule is no teeth."

"T-teeth?" Nagisa tilts his head. "Like how?"

Karma winces. "Well, don't say you didn't ask. I'll show you for just a second."

He goes back down again, taking Nagisa into his mouth, and if this is what heaven feels like he's about to start planning his own funeral. But then, just as he gets adjusted to the feeling again, Karma's mouth shifts and suddenly his teeth scrape against the shaft. It's entirely different to everything else he's feeling, but so satisfying and real that immediately his eyes roll back.

He cries out even louder and it's embarrassing. But, all of a sudden he's filled with crazy, primal urges. Like he wants to slam Karma's head down and make him do it again. Nagisa's not quite confident enough for anything like that, in fact mostly he just trembles. Didn't Karma just say not to do that? But… he wants more.

Karma pulls away again in confusion. "That felt good?"

Nagisa nods, but Karma's reaction makes him feel uncomfortable. Is he weird?

"You're into teeth," Karma concludes. "Interesting."

"U-uhm," Nagisa needs to ask for more but he doesn't know how, "can you-"

Karma grins devilishly, then, and pries one of Nagisa's hands from the cushion and places it in his hair instead. "Why don't you show me what you like?"

It takes Nagisa a moment to figure out what he means, and he feels like he's going to overheat. It was easy to just experience this, but to control it? Unfortunately for him, his neglected erection throbs to the point it's almost painful, and that pretty much makes up his mind. He just barely pushes, and thankfully Karma doesn't torture him by making him ask for it even more directly.

Nagisa sighs, when he slides right back into Karma's mouth, and it all feels right again. He keeps his hand in Karma's hair, and he can't help but feel around. As it turns out, his hair is really soft, and it's easy for him to get lost in stroking through the texture. And also what Karma's doing to him in general. With little actual guidance, he's bobbing up and down at the steady pace, and once again it's so hot and almost too much to bear.

He breaks his promise to keep watching. He can't look at Karma like this, taking him easily to the most pleasure he's ever felt in his life, without losing himself in an instant. Nagisa's honestly not sure he can do anything anymore, though he vaguely knows his grip in Karma's hair is tightening. He closes his eyes instead, trying to focus on the feeling, but then Karma scrapes him lightly with his teeth again.

He doesn't consciously mean to, but he really grabs onto Karma, then, forcing his head down as his hips jump. Karma doesn't seem to mind at all, though, if anything sucking harder than before. Of course Nagisa knows that Karma's strong enough to remove his hand if he really wants to, but he seems fine to just keep going, and then he does something with his tongue that makes him almost snap right then and there.

"Nagisa," Karma says after actually removing his hand and pulling off again, and he wants to scream in frustration. "You seem pretty close. But there's so much more to cover-"

"Next time," he just about gets out through gritted teeth, "just show me next time."

He finally gets enough of a grip of himself to open his eyes again, and Karma's just sitting there watching him. Like he's waiting for something. It's not a position he ever thought he would see Karma in, on his knees with swollen lips, a hit of saliva at the corner of his mouth. He's still looking up at him in a way he doesn't know how to process, but he knows he won't be able to erase from his memory any time soon.

"You want to get off already, huh?" There's amusement in his tone, as though he's making fun of him.

"I-I-"

Nagisa doesn't get a chance to finish his sentence, because Karma moves suddenly, grabbing Nagisa's legs and throwing them over his shoulders. He yanks him forward, so he's almost lying flat on the sofa with Karma's head right between his thighs, and goes down with so much intensity Nagisa can't even think about what just happened. If he thought he was in control just then, he was clearly mistaken, because Karma has him.

He manages to at least watch, when Karma elects to lick the length of him from his underside, his tongue strong and powerful enough to create satisfying friction. He locks eyes with him just one more time, before sucking just the head, digging his teeth in just a little and Nagisa can't even warn him before he snaps.

The thing with pleasure and pain, equally, is that you can't really remember how it feels until you're in the midst of experiencing it. But, what Nagisa discovers right then, is that not all orgasms are equal. He thought the last time was strong, but it's never taken him over as much as this. He sees completely white, and the next thing he knows, his ears are ringing and he can't even feel his legs. That, and he wants to sink down into the sofa and never get up again.

He's only capable of whining, when the feeling of Karma's mouth is unpleasant with the sensitivity. Thankfully, he doesn't torture him, and sets his legs back down so he can feel the floor. Nagisa blinks in confusion, wondering where the mess was, but then Karma grinned at him and licked his lips with devilish intention, and if Nagisa's blood was anywhere other than in his crotch right then, he would have gone bright red at the display.

"Think you got that?"

Nagisa can't even nod. His jaw just drops, in awe of how quickly Karma went from that to his usual nonchalant self.

"Since I'm your teacher now," he pulls himself to his feet, wiping his face with his shirt, "I should probably be responsible, right? So, homework."

"H-homework?"

"Yeah," Karma says, and then goes into a kind of deep thought. "Homework."

Nagisa slightly comes back to himself. "S-shouldn't I, uh, do you?"

Karma looks surprised. "You feel up to that? You look kind of… wiped out right now."

"But-"

"Don't worry about it," he says, and sits beside him on the sofa, stretching out. "We'll have a test next week, hm? Until then… you can practise."

Nagisa has no idea what to say or think of that, but suddenly he's all too aware of the chill of the air around him. He winces, before shifting so he can pull his underwear and trousers back on again. Still sensitive, it almost hurts a little, but it's better than sitting naked in Karma's apartment. Though, considering what they just did, nudity doesn't seem like such a big deal.

"Okay," he agrees, and somehow it feels like he just signed a contract.

"Do you want to watch a movie or something?"

Just like that? Well, he supposes this arrangement doesn't have to mean anything weird. Is it even a proper arrangement? Maybe they should discuss it more… But, Karma can still teach him about sex kind of things, whilst they maintain their normal friendship. Is this going to be a regular thing? Nagisa doesn't even know, but the prospect of next week is a slightly scary one.

"Yeah," he suddenly feels calm, though he can barely wrap his mind around what just happened. "Whatever's on."

Karma cleans back, picking up the TV remote as he flicks through the channels, eventually finding something he likes the look of. Nagisa doesn't think too much about it, just glad for external noise to fill the apartment. He still has hours to go, before his last possible train, and he's not jumping to leave right away, as much as he wants to go home and think on it some more.

"Did I tell you about what my co-workers did this week? It's worse than last time."

This is normal.