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2022-01-10
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New Infinities

Summary:

Reki, feeling bummed that he can't beat Langa in a race, tries to get in some extra practice on a sketchy trail in the back of the "S" mine. But after his board falls into a mysterious forest that's covered in an even more mysterious substance, he finds that beating Langa in a race will be the least of his problems.

Notes:

CW: This fic has an emphasis on muscle growth and transformation. If you are not a fan of that, I do not suggest reading! I'd like to think that SK8 has a very wholesome community, but this fic is pure smut, so be warned!

I will treat this fic as finished for now, but let me know if you'd like to see more. I can always add to it if there is interest!

As always, thanks for reading! If you like my content, please consider following me on Twitter! @LocalPinkKitty

Work Text:

The soft glow of the moon illuminated the warehouse where fans eagerly stood waiting to see the winner of that night’s main event: a race between two of the top skaters in S , Reki Kyan and Langa Hasegawa. Though the race had only begun mere minutes ago, the cheers of spectators just ahead of the warehouse could already be heard, and it appeared that the race was nearing its end. Before long, Langa came into view, firmly in the lead and about to secure his twentieth win in a row. Reki could be seen trailing a good ten feet or so behind, clearly tired and out of breath but unwilling to give up. As Langa entered the warehouse, Reki began to gain on him, closing the gap to five feet. Four. Three. Two.

Cheers erupted as Langa crossed the finish line, with Reki trailing less than a board length behind. Crowds swarmed Langa, congratulating him on his twentieth consecutive victory. Reki stood at the edge of the crowd catching his breath, feeling a mix of happiness for Langa and disappointment in himself. He had come so close this time, but still it felt like he was no match for Langa. Joe had been waiting at the finish line, and after seeing the defeated look on Reki’s face he decided to walk over and cheer him up. 

“Don’t be so hard on yourself Reki. That’s the closest you’ve ever come to beating him. You’re clearly improving!”

“I know, I know. It’s just… every time I think he can’t get any better, he does! I’ve been playing catchup for over a year now… I know what happened the last time I felt sorry for myself like this, but I can’t help but feel a little down, ya know?”

“Yeah, I know how you feel... He’s overtaken me too, and I gotta live with it just the same.”

“I just wish there was something I could do to get ahead, even if just for one race…”

Joe puzzled over Reki’s dilemma for a moment, and came up with an idea.

“I don’t really think you and Langa should be keeping secrets from each other, but I don’t wanna see you spiral again so I’ll let you in on one. There’s another higher difficulty track a little way’s down on the other side of the mine where you could practice in secret. It’s nothing too dangerous like the old course Langa and Adam skated on, but you should still be able to hone your skills a little more on it without Langa noticing.”

“I don’t know… keeping something like that from Langa to get ahead? It seems wrong…”

“I don’t really like it either, but it’s up to you. Maybe beating him once or twice will be good for the both of you. It’d be a shame to see Langa get bored of winning all the time like Adam did.”

The thought of Langa becoming like Adam sent shivers down Reki’s spine. Though Joe’s idea wasn’t without its drawbacks, he felt like he had no other choice than to go through with it. He thanked Joe for his advice and made his way through the crowd to congratulate Langa. Seeing Reki approaching, Langa quickly finished talking with his fans and turned to face him.

“Congrats on your twentieth!” Reki started.

“Close match this time, eh?”

“Yeah, but I still couldn’t beat you…”

“Don’t worry about it! You raced amazingly tonight. You’ll always be a great skater in my eyes.”

Reki couldn’t help but blush. “You know you don’t have to be so nice to me all the time…”

Langa smiled. “I just wanted to make sure you knew your worth.”

“Don’t you worry about that. I still fully intend to beat you one of these days.”

“I’m counting on it.”

Reki smirked, knowing this time his words were more than just talk. He was filled with determination to better himself as a skater and finally beat Langa in a race. With a grin on his face, he waved goodbye as Langa headed home. Soon, the warehouse had cleared out, and Reki was the only one left at the mine.

“Now, time to get some training in!”

Reki walked back up to the top of the mine and began to head down the side towards the spot Joe told him about. Without wasting any time, he hopped onto his board and started to ride down, attempting to sharpen his turns and gain more speed. Without a car or some other vehicle to take him to the top, the walk back up was grueling, but Reki treated that like a form of training on its own. Even so, he was exhausted after going down only two times.

“Damn huff … this is more tiring huff … than I thought huff … it would be…”

He decided to head back home, pulling out his phone as he walked. But as he pulled it out, he noticed that he had a text from Miya.

“It’s nice to see you improving and all, but are you planning on winning any time soon slime boy?” it read.

“Slime boy? Again!? Who does he think he is!?” Reki exclaimed. “I’ll show him. I’ll run this course ten more times if that’s what it takes!”

Before long he was back up at the top of the mine. He was out of breath and desperately in need of a break, but with Miya’s words still fresh in his mind he decided he didn’t have time to stop and rest a bit, he needed to get better and he needed to do it now .

Reki started making his way down, and this time his movement was particularly sloppy. He was clearly too tired to make the precise turns he needed, but nevertheless he increased his speed and continued to press on when suddenly he came upon a particularly sharp turn. Going too fast to make it, he had no choice but to bail, jumping off his board and skittering along the ground as he slowed a stop. His injuries were minor, but his board wasn’t faring much better as it careened off the side of the track and disappeared below. Reki slowly got up and sat to catch his breath.

“Damn huff … that board was really good, too. Maybe I should try huff … and get it…”

Reki slowly got up and made his way to the edge of the track where he looked down at the ground below. He couldn’t see his board through a layer of trees that stood in the way. He sighed and started making his way down the track on foot, hoping to find it from the ground. He made it down to the base of the mine and then walked back to where his board fell off the track, noticing that the trees in that area were unusually tall and thick compared to the rest in the mine, and that a greenish gooey substance covered much of the ground ahead. He continued forward, trying his best not to step on it, when finally came across his board. Reki excitedly ran up to it only to find that it was snapped in half and sitting in a large pile of the goo. He sighed and ran his hands through his hair.

“I seriously walked all the way back here for this?”

Deciding it was still worth salvaging, Reki stepped into the goo and retrieved his board. He cleaned off as much of the stuff as he could from it with his hands and proceeded to head back home. When he finally made it back, he cleaned off his broken board with a hose and set it on the ground next to the door to dry. As he headed in, he noticed that everyone else had already gone to sleep. Quietly, he made his way to the bathroom, took a quick shower, and went to bed.

~~~

Reki slept in late as the effects of last night’s training session set in. He woke up sore and lethargic, unwilling to get out of bed until his sister Koyomi dragged him out. He sluggishly made his way to the table for breakfast, and his mother looked at him with concern.

“Reki, are you feeling okay?” she asked.

“Yeah, I’m just sore from skating last night…”

“Didn’t you say you and Langa had planned a skating session today? How are you going to skate again in that condition?”

Reki’s eyes went wide as he remembered his plans. “D- don’t worry about it, I’ll be fine…” he replied. Truthfully, he wanted nothing more than to stay home and relax, but he couldn’t break a promise he made with Langa.

Reki thanked his mother for breakfast and headed out to meet Langa, intentionally slowing his pace as he walked to the skatepark in hopes that the extra few minutes would give him time to recover. Before long, he arrived at the park and noticed that Langa was already there. Reki walked up to the Langa and the two shared their signature dap. Since they were meeting fairly early in the day, nobody else was around.

“What’s up with the new skateboard?” Langa asked.

Reki dug up a prepared response. “My regular board broke when I was skating home. I guess it wasn’t faring very well after our race.”

“That’s too bad. Hope this new one works out for you.”

“Yeah, hope so…”

The two began their skating session. At first, Reki’s soreness made it hard to move, so he just skated around the park without doing any stunts in hopes that Langa wouldn’t mind. But after a few minutes, his soreness started to fade. Surprised but unbothered by his sudden recovery, he skated up onto the big half-pipe in the park’s center and began practicing a few of his more complex tricks.

“Wow Reki, you’re getting a lot more height than usual!” Langa commented.

“Y- you think so?”

“Yeah! I don’t think I’ve ever seen you skating so well.”

Langa was right. Somehow Reki was skating better than he ever had before. After only a few minutes, his soreness had completely disappeared and he felt full of energy. Skating faster than he ever could before, he ramped up the half-pipe and into the air, reaching a point as high as Langa’s personal best. Seeing this, Langa stopped what he was doing to watch. Reki went back up each end of the half-pipe several times, each time gaining more and more height and performing difficult stunts with ease. Langa watched in awe as Reki got better and better right before his eyes.

“R- Reki… How are you doing this?” he said to himself.

Reki felt energized and confident as he continued his incredible feat of skating. After a few more minutes, he finally decided to stop for a bit, not because he was getting tired but just to take in his sudden improvements. It was all so bizarre. He had only practiced in secret for one night and already he was like a whole new skater.

“Reki, that was amazing!”

“I know, right? I didn’t know I was capable of getting that much height…”

“Neither did I. It’s great to see you improving so much. Is it that new board of yours?”

“I- I guess so…” Reki replied, doubtful but lacking a better explanation.

When the two went back to skating, Reki felt more energized than ever. With each passing minute he felt more and more capable as a skater and his improvements only continued. Before long, however, he started to feel a faint burning sensation in the soles of his feet. Figuring it was just his body’s reaction to the increased force from his high-air stunts, he ignored it at first, but the sensation only grew more powerful each minute. Suddenly, the burning sensation was joined by a sharp, stabbing pain that caused him to lose his balance and fall to the ground. Langa quickly ran up to him to make sure he was okay.

“Reki, that was a nasty fall! Are you alright?”

Reki sat up and looked at his foot. “Yeah, I’ll be okay. It’s just my foot. It really hurt for a bit… and for some reason my shoe feels really tight all of a sudden…”

“Your shoe feels tight? How come you didn’t notice that until now?”

“It wasn’t tight a moment ago… And it’s only the one sh-...” Reki’s words trailed off as the pain returned. He cried out as he felt a strange and powerful sensation welling up inside of his foot. Langa reached forward to help Reki out of the shoe when suddenly a tear formed at the top of it.

Ughhh Langaaaaaaa… Something’s happening…”

Reki and Langa both watched as the tear increased in size and Reki’s toes began to poke out. Reki yelped in pain as a tear started to form in the top of his other shoe as well. His toes pressed further and further out of each of them until the tops of both shoes were completely torn apart.

“Reki… Are you feet… getting…”

Bigger! ” Reki shouted as his feet shot upward, growing another few inches in mere seconds.

Reki groaned as the strange sensation in his feet began to spread upwards into the rest of his body. He leaned back and groaned as his legs began to elongate. Langa watched with exasperation as Reki’s legs stretched longer and longer, thickening with muscle as they grew.

“Reki, your legs are growing too! What’s happening to you!?”

“It’s- uhnnnnn fuckkk… it’s not stopping!”

Reki’s legs continued to stretch outward with muscle as his feet tore through his socks. Langa watched as the growth continued to spread upward, his eyes going wide as Reki’s bulge began to press out against his pants. He watched as Reki’s cock began to slowly harden and jut upward against his clothes, thickening with girth and elongating as it did. Langa blushed and tried to look away, but he couldn’t. Though he had never confessed his feelings for Reki, he wanted nothing more than to have him. He couldn’t help but get turned on at the sight of Reki’s growing bulge, and his cock began to harden as Reki’s grew.

Reki’s groans turned to moans as his cock thickened and started to rip through his pants as well as the boxers he was wearing underneath. Reki’s face turned a deep shade of red as his cock tore apart the front of his pants and its growth began to accelerate. It pressed harder and harder against his boxers, which were a shade of blue remarkably similar to the color of Langa’s hair.

“L- Langa… Don’t look! I- ughhhhh … I can’t stop it! It’s gonna tear through my boxers… My boxers! ” Reki’s eyes widened as he saw that his boxers were in full view of Langa, and he quickly turned to the side to conceal them, but Langa failed to realize why Reki didn’t want him to see them.

“Wh- what’s wrong with your boxers?”

“It’s agh … nevermind!”

Reki was forced to turn back to a more comfortable sitting position as his cock tore through the boxers and revealed itself to Langa. He was huge, almost a foot long and still growing. The sight of Reki’s now-exposed cock only increased Langa’s arousal.

The transformation progressed further upward as Reki felt his abdominal muscles push out against his skin. He lifted his shirt to look, and the sight of his growing abs caused both his and Langa’s cocks to start leaking pre. Though the transformation hurt, Reki was starting to get seriously aroused by it. Pre dripped down the side of his cock and onto his balls, which were growing bigger every second.

Langa was beginning to get lost in his arousal. Without even thinking about it, he moved closer to Reki and felt his growing abs, which caused his cock to leak even harder. Reki looked up at him and was shocked to see the lust in his eyes. Langa was usually so emotionally reserved, but here it seemed like he couldn’t help himself. Reki smiled for a brief instant before his attention was redirected to his pecs as they began to grow. Reki tried to pull his shirt off, but the growth was surprisingly fast, and his pecs quickly ripped it in half, exposing his nipples to the air.

“My… fuckkkk my pecs huff … feel weird…” Reki exclaimed. Langa, distracted by Reki’s still-growing abs, failed to notice that milk was beginning to leak from Reki’s nipples. When it finally caught his eye, he was caught off guard at first, but quickly he gave in to his lust again and leaned in it to give it a taste.

“Reki huff … fuck… you-... you taste so good…” Langa muttered between licks. Langa downed more and more of Reki’s milk as it leaked in greater and greater volumes.

“L- Langa…” The sensation of Langa licking Reki’s nipples only stimulated him further, and pre began to spurt from his cock up over his abs. Reki reached down with his right hand and began to masturbate, feeling his arms thicken with muscle with each stroke of his cock. His neck and shoulder muscles followed, swelling with mass and pressing outward in all directions. As his frame widened, both he and Langa only grew more aroused. Langa’s cock was leaking an unusually large amount of pre, but Reki’s was inhuman. His cock leaked a full load’s worth of pre every few seconds which his swollen balls quickly replenished.

Reki looked over at Langa, who was still busy drinking his milk, and decided that he couldn’t wait any longer to have what he had secretly wanted for a long time. He quickly rotated his body and pounced Langa, hovering over him on his hands and knees. Though Langa was surprised, his eyes never lost their gleam of desire. He wanted Reki just as badly as Reki wanted him. Reki leaned down and kissed him passionately. His body continued to swell with muscle as his tongue was intertwined with Langa’s.

“Y- you don’t know huff … how badly I’ve wanted this huff … Langa…”

“I’ve huff … I’ve wanted it just the same…”

The two continued to kiss as Reki pressed his cock up against Langa’s, running it back and forth and summoning even greater volumes of what was now no longer pre but full-on cum. He had not climaxed yet, but his balls had become overfilled and could no longer withstand the mounting pressure. They forced out a steady stream of cum which spilled onto Langa’s shirt, ran down the sides, and began to pool beneath him.

“Fuck huff … Feels like uhnnnn another huff … growth spurt coming…” Reki mumbled through kisses.

“But huff … you’re already huff … so big!”

It didn’t matter. Reki’s transformation refused to quit. He moaned as his entire body stretched and pulsed outward. His growing muscles towered over Langa, and his pecs had become swollen with milk that began to flood out of his nipples and into the pool of cum that had formed beneath Langa.

Reki’s arms elongated, briefly carrying his head upward and pulling his mouth away from Langa’s, but a sudden surge of growth in his neck allowed him to comfortably resume. His growth accelerated as he began again, and his cock started to grow several inches longer every second. As it became harder to hold up, Reki rested it against Langa’s torso. While still kissing Reki, Langa instinctively pulled up his shirt so that his body could be covered in Reki’s warm cum. He watched in awe as Reki continued to grow bigger and bigger. By this point, he had become at least ten feet tall, and his growth showed no sign of stopping. He pulled back from Langa as his mouth grew too big for Langa’s and his lengthening arms lifted him higher and higher off the ground. His moans became louder and deeper as they swelled with muscle. Seeing Reki’s bulging biceps, swelling pecs, and thickening legs was too much for Langa to bear, and he came into his pants. The sight and scent of Langa’s climax quickly pushed Reki to the brink of orgasm.

“I’m huff … gonna huff … BUST!” 

Cum rocketed out of Reki’s cock and onto Langa, who downed as much of it as he could. Reki moaned repeatedly as he came harder and harder, his balls quickly replenishing his seed and producing an unending flood of cum that spread to every end of the skate park. His overfull pecs shot out large volumes of milk from his nipples that mixed in with his seed below.

“It huff … won’t huff … STOP!” Reki shouted as his orgasm intensified with every passing second. Langa was in ecstasy, orgasming only a few minutes after his first as Reki’s seed continued to rain down on top of him. The pool of cum and milk Reki had made quickly reached every end of the skate park, running out of the gates and into the surrounding woods. Reki looked around as he watched the trees around the skate park begin to grow. He then looked down at Langa and saw that his stomach had begun to bulge from all the milk and seed he had downed. He was concerned, but he couldn’t say anything with his climax still raging on. For minute after minute, Reki could not stop cumming. His growth similarly refused to stop, and before long he had surpassed twenty feet tall. Several more minutes passed and still his growth and climax both refused to let up. Reki began to worry about other people showing up at the skate park and seeing him, but there was nothing he could do. His cum continued to pool up in every end of the skate park and feed the trees around it, which grew taller with every passing second.

Unable to see Langa under the sheer magnitude of his seed, he called out to confirm that Langa was there.

“Langa huff … you okay huff … down there!?”

“Y- yeah… I just huff … feel kinda weird!” Langa called out.

Reki’s suspicion was right. Before long, Langa felt pain begin to set it along the soles of his feet as they began to grow. After he tore through his shoes, his legs began to elongate and swell with muscle. Each of his changes mirrored those of Reki, and he knew that before long he would be joining him up above the skate park.

Reki licked his lips as he watched a growing Langa emerge from under his flood of cum. He saw that Langa had begun an endless orgasm of his own, and that milk was shooting out of his nipples in every direction. The sight of it only made his climax more intense. Cum started to pool up inside the skate park as the trees could no longer keep up with the volume of seed that Reki and Langa were producing.

Reki, still on his hands and knees, felt his feet press into the skate park gate behind him and quickly destroy it as he grew to over thirty feet tall. With ever-intensifying lust, he grabbed Langa, held him up over his massive cock, and forced Langa’s ass down onto it. Langa yelped as Reki’s enormous shaft was pressed deep inside of him. Langa watched his stomach expand, quickly filling up with cum, which only caused his growth to accelerate. His body quickly converted the nutrients Reki supplied him with into mass, and before long he too had surpassed thirty feet tall.

Even as Reki surpassed forty feet tall, there appeared to be no end in sight to his and Langa’s growth. Reki continued to pound Langa with his still-growing cock as his body swelled bigger and bigger. As Langa continued to get fucked by Reki, his cock rocketed cum up into the air which rained down all over Reki and the skate park. The volume of his and Reki’s seed was astounding. It produced an intoxicating scent which filled the air surrounding the park and began to spread out into the town. 

Both Reki and Langa continued to grow, each surpassing fifty feet before their growth finally began to slow down. Just as the two reached sixty feet tall, their orgasms came to a stop, and their growth with it.

With Reki’s last drops of seed spent, he sat up and leaned back against the towering trees surrounding the skate park to catch his breath. Langa, equally in need of a break, joined him.

“That huff … was huff … incredible…” exclaimed Reki, in-between breaths.

“How huff … how did this happen?”

Reki thought back to the strange woods where he retrieved his broken skateboard, but decided against mentioning it.

“I’m huff … not sure…”

“Fuck… I feel huff … so good huff … so huff … powerful…”

“Me too…”

Langa leaned towards Reki and kissed him one more time before returning to his resting position.

“I’m huff … happy that you huff … feel the same…” Langa said as he closed his eyes to relax. Reki leaned up against him, closing his eyes and smiling. They would figure out what to do about their new sizes later. For now, all they wanted to do was savor the moment that they became a couple.