Author's Note: This absolute monster of a fic started out as a kinkmeme fill and has long sense gone astray to become That RinRei Dickpic Fic. I was completely floored by the response I got on AO3, so I've decided to raise my FFN account from the depths of hell to post it here. As a fair warning, I haven't posted anything to this site since I was in college, so you'll have to forgive me for not knowing what the heck I'm doing anymore.

Content Warning: In case "dickpic" wasn't enough of an indication, this fic does contain sexual themes and probably technically exceeds the rating, so if that sort of thing makes you squeamish, this is your chance to back out and go find a nice wholesome gen fic or—better yet—a Holy Bible because you're definitely going to need Jesus after reading this.

Disclaimer: I am not responsible for any death, injury, or moral corruption that might occur upon consumption of this fic. If you're under 18 and reading it anyway, well... I really have no room to talk because, haha, I remember what I was doing on the internet at 13, and let me tell you. Just be careful what you click on, kids. What has once been seen can never be unseen! *softly weeps at the memory of tubgirl*

"Going out tonight?"

Aiichirou looked up from the glowing screen of his phone to his sullen roommate, still laying on the bottom bunk staring blankly at the wall the way he had been for the past twenty minutes.

Rin did that a lot, he noticed.

"Yeah, um." Aiichirou paused to quickly finish the text he was typing and then shoved it in his back pocket. "Some of the guys were going to go—"

"Yeah, that's great, Ai," Rin interrupted flippantly with a dismissive hand wave. "You know what? You have fun. And don't even worry about getting back late."

Aiichirou's heart leapt at hearing his nickname, filling him with a hesitant sort of hope that just maybe... "You could come with us," he suggested. "I'm sure no one would mind."

Rin snorted and looked Aiichirou dead in the eyes. "No, thanks."

"Are you sure?"

"Positive."

Then, whatever it was Rin found so interesting on the wall caught his attention again, leaving Aiichirou wondering if he had said something wrong. The other boy's behavior had been so erratic lately that he could never be sure.

"Oh... okay then," he conceded. He worried at his bottom lip a little with his teeth and tried not to look too much like a kicked puppy.

Rin's reclusiveness had improved after the bizarre stunt he pulled with Iwatobi's team at the relay, but convincing him to leave their room for any group socialization was still a challenge. Aiichirou sighed and chalked it up to Rin needing more time to recover from his... whatever it was he was going through.

"Well. If you change your mind, just text me."

"Gotcha."

Save for the subtle motions of his breathing, Rin remained perfectly still, the slightest frown touching his lips. A period of awkward silence stretched wherein Aiichirou stood waiting, eyes boring a hole through the floor as if he actually expected Rin to consider changing his mind. When he finally made for the door, the pop and squeak of shifting on the mattress and the frantic rustle of sheets recaptured his attention.

"Ai?"

Rin sounded more tired than irritated, Aiichirou decided, peering over his shoulder to find the older boy propped up on his elbows. "Yes?"

"How long do you think you'll be gone?" he asked, eyes sweeping the lines of Aiichirou's face and then drifting back down to the wad of sheets between his knees.

"Uh... I dunno." Aiichirou fidgeted a bit. "An hour at least? Or two. However long it takes us to finish it, I guess." He flicked his gaze to the phone gripped under Rin's right hand. "Why?"

"Oh, no reason, really." The redhead kept his normally expressive face a mask of cool neutrality, slumping back into his pillow. "See ya later."

"Yeah, see ya," Aiichirou said, brow furrowed in concern as he exited the room, and closed the door lightly behind him.

Rin could be so weird sometimes.

As soon as the door clicked shut, Rin pulled himself back up into a full sitting position and let out a heavy sigh of relief.

Finally.

He enjoyed his roommate's company, honest, but there were times when he really needed Aiichirou to be somewhere else for more than five minutes. Because some things you just can't do with another person in the room, especially if that person is sleeping in a bed connected to yours. It had been a long, particularly frustrating week, and several days without releasing some tension had set him on edge in all the worst ways, more so when human interaction was involved. Having been given the opportunity at last, Rin intended to do something about it immediately, furiously, and as many times as possible before Aiichirou got back.

Before engaging in any fun activities, however, he made it a priority to close the curtains and lock the door to prevent some idiot from walking in on him while he was taking care of business, and he'd be damned before he let his precious alone time be interrupted. His second priority was selecting a willing participant from the contacts on his phone. Because being physically alone didn't necessarily mean he couldn't share his acute arousal with somebody else, and what were friends for? After all was said and done, he quite liked having the Iwatobi boys back in his life, and puberty had been so very, very kind to all of them.

Scrolling through the numbers on his screen, he skipped over Haruka's immediately. Assface never had his phone on him. Makoto was tempting, but also a no. Odds were too high he was either hanging out with Haruka or minding his little twin siblings, which would mean zero chance of any worthwhile exchanges. Nagisa, on the other hand...

Yeah, he could do Nagisa. Sure, the diminutive freshman could seem a little oblivious at times, but Rin highly suspected it was merely an act meant to throw people off. Because, seriously? There was no way in hell a guy who trespassed onto another school's property in the middle of the night and shamelessly jumped buck naked into their pool could be that fucking clueless.

With a smile that could put razors to shame, Rin stripped off his shirt and jeans like greased lightning and slung them over a rung on the bunk ladder. Every second with his dick tonight counted, and he planned on wasting none of them. The rush had already given him a semi, which he palmed through the thin fabric of his boxers as he considered whether the angle of his erection would look better sitting or standing, and then decided he'd rather lay seductively against his pillow. Even if the recipient wouldn't see that part.

He could strike a sexy pose for his own benefit, couldn't he?

So, he shimmied out of his boxers, threw them in the general direction of where the rest of his clothes were without caring where they landed, and dove into bed. It didn't take long to stroke himself to full hardness, the weighty feeling of his own stiffening cock beneath his fingers exciting him all the more. He almost changed his mind about texting Nagisa in favor of feeding his impulse to finish now, rough and fast and desperate, but as the first drop of precum rolled down to his knuckles, he thought better of it and, reluctantly, loosened his grip. His time was limited, but that didn't mean he had to spend himself all at once.

Flushed and already beginning to sweat, he took in a few haggard breaths before grabbing his phone to take a preemptive dick pic. The lighting of the room gave the tip a glistening sheen at a certain angle. So, feeling it made a nice touch, Rin cupped his length to position it just right with the camera. The picture blurred a bit, but he didn't care to bother taking another since it was at least recognizable as a male genital, and that was what really counted.

Without paying nearly enough attention to the name he selected, he typed up a little something to get the ball rolling.

Sent! (21:25) Yo, babe. You up? Because I know I am. ;)

The sudden vibration of his phone sent it creeping across his beautifully-organized trigonometry notes. Startled from deep concentration in calculating the tangent of something or other, Rei reflexively slapped his hand over the buzzing device to keep it from careening over the edge of his desk. It took a few seconds for his train of thought to switch tracks from variables to someone sent me a message.

It took even longer for him to process being called "babe" by the sender. He and Rin had made nice on their own after regionals, even advanced to addressing each other on a given name-basis at the next joint swim practice, but the endearment felt a little... misplaced. Still, seeing how affectionate the guy could be with his old teammates when he wasn't in despair and kicking over waste baskets, Rei considered the possibility that this was simply how he spoke to people he considered friends.

He made a mental note to ask Nagisa about it later and typed his reply.

Sent! (21:31) Yes. Do you need something?

He didn't want to sound presumptive, but his past experiences indicated that Rin texting him at night strongly correlated with meeting at some obscure location to make emotional confessions that could just as easily have been shared over text, and he really didn't have the time or energy for that at the moment.

The response was almost immediate.

Rin-san (21:32) Well, since you asked...

Attached was a slightly blurry snapshot of an erect penis, cradled proudly in the hand of its owner. He couldn't quite see the full length of it, but the head extended about a thumb's length over the edge of the palm.

Rei nearly dropped the phone as he shot up from his desk chair to slam the door shut and clapped a hand over his mouth to keep from shouting any one of his racing thoughts. Because the last thing he needed was his family barging in to ask what was going on.

"What the fuck, Rin?" he exclaimed aloud anyway. And then he typed it, ugly expletive and all, into his phone and pressed send.

Sudden dick pic wasn't even on the list of likely answers he had expected, and his mind was reeling from the possible implications.

Still laying in his bunk, Rin idly stroked himself to keep from getting soft, wearing a toothy, lecherous grin as he waited for the reaction. He didn't have to wait long before a familiar buzz announced a new message.

Rei (21:34) What the FUCK, Rin?

His grin quickly faded to a confused pout. That was exactly not the reaction he wanted. Despite all that had happened after his return from Australia, he thought for sure that he and Nagisa had at least...

And then he noticed the name at the top of the screen.

Oh.

Oh, shit.

That wasn't Nagisa. That was so definitely not Nagisa.

No, that was probably the worst possible misfire he could have made other than accidentally sending it to his own mother.

His hot and heavy arousal trickled into a spine-tingling cold sweat. Any other accidental recipient—any other—he could have easily smoothed things over with, given they were in a good mood. With some effort and profuse apologies otherwise. But Rei? Awkward, nerdy, beautiful Rei?

The friendship was too new. Too fresh, too raw, too delicate. His first impression of Rin was probably "colossal jerkass" and Rin had done precious little to refute that. Their first real interaction was one wrong word away from ending in a fistfight, and despite all the snarky banter and helping him with his butterfly form at joint swim meets, Rin still owed Rei a lot for reconnecting him with his old friends and cluing him in to how unnecessarily stupid he had been acting. Damaging their fragile bond now would probably drive another huge rift between him and the Iwatobi swimmers, and the thought of losing his friends again terrified him in ways that nothing else could.

Then, his phone buzzed again. He hadn't even begun to think of how to reply to the previous text.

Rei (21:39) After careful determination, I have concluded that the messages from you must have been sent in error. Please be more careful to check the recipient number before sending messages with photos of that nature attached.

He still couldn't breathe. Rei seemed to have gone from enraged and confused to calm and understanding in less than a minute, but that still didn't change the fact that he had a picture of Rin's dick on his phone. Rin swallowed the growing lump in his throat and exhaled in a huff that definitely didn't sound like a sob. That had been way too close to a disaster he was so not prepared for.

Yet another incoming message vibrated his nervously trembling fingers.

Rei (21:42) This is Rei, for future reference. Nagisa-kun didn't tamper with your contacts, did he? He played a terrible joke on me last month by switching up his and Gou-san's numbers in mine. Sometimes he doesn't consider the consequences of his mischief.

Three replies and he still hadn't given Rei an explanation. Rin felt like the biggest idiot in the world. Figuring his "fun time" was over before it had even began, he flopped back against the mattress, jerked the covers up over himself, and glared at the metal spring grating under the top bunk as though it had personally offended him. He carefully considered the best way to word an apology without explicitly mentioning his glistening, rock-hard cock.

Halfway through typing his reply, the phone buzzed again.

Rei (21:51) By the way, I would recommend propping your camera against something steady and sitting closer to a light source to ensure a clearer image next time.