100 Ways to Grow #2 - Serum

Story by Fusanoshin4 on SoFurry

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#2 of 100 Ways to Grow

aka "Accidents and Decimals"

Dr. Fenner's ready to begin trial five of his muscle growing serum experiment. This time a young, athletic wolf is his patient. Things seem to go as expected, until the growth picks up unexpectedly.

Going from macro to muscle here! I find muscle growth difficult to write well. I did use multiple writers' stories as reference so hopefully I was able to successfully put into practice what I studied.

Please read and leave a comment with your thoughts! They are very valuable

1718 words


"The subject is ready for the test, Doctor Fenner. " The young mouse leaned against the door as he waited for his superior's response.

The leopard had been browsing his notes, but upon his assistant's announcement, he clasped his paws together. "We are not mad scientists in a movie, Sanders," he said, subtle disappointment punctuating his words. "The patient's name is Matthew."

Sanders bowed his head to hide his embarrassment. The paw that still held the door knob twisted nervously. "The patient has been prepped."

"Thank you, Sanders." Though it was true that the wolf waiting in the examination room could be considered a test subject, the leopard preferred professionalism when it came to his experiments and to his patients. "And the serum?"

"It's ready."

Fenner nodded. "I'll be in the examination room shortly." His assistant acknowledged his statement then left. The leopard adjusted his glasses as he perused through the notes of the previous trials.

Each of the first four trials yielded positive results. Fenner scrolled through before and after images, reviewing the difference in each patient's change after taking the serum. Bigger arms, bulkier chests, and thicker legs, the goal for the serum was to increase muscle mass. The leopard rechecked the numbers and measurements, noting that all the patients gained about ten percent in muscle. Despite the promising outcomes, the sample size was still low. It was time for trial number five.

"Good to see you again, Matthew." Fenner extended a handshake, which the young grey wolf returned. "Sanders told me you're all prepped."

Matthew nodded, shifting his position on the examination table. He sat wearing only loose cotton shorts at Fenner's request so that the doctors could properly examine his body during the trial.

"Any questions before we get started?" The leopard sat down by a small table where his laptop rested. As the wolf replied with a "no", Fenner quickly reviewed Matthew's recorded measurements. His patient had some mass already, with decent bulk that made up his one hundred and eighty pound frame. Sanders had mentioned the wolf had only started lifting a couple months ago. Although Matthew was his second heaviest patient pre-serum, the heaviest one carried a higher percentage of body fat compared to Matthew. The doctor was interested in how the serum would affect his athletic build. Fenner finished typing then nodded to Sanders. It was time to begin.

The mouse switched on a camcorder standing on a tripod about ten feet from Matthew. "As I said before we'll be recording this. Okay, it's on." Sanders then grabbed a rubber strap from a card standing by and wrapped it around Matthew's arm. "Clench and unclench your fist. Good, good. Now, during the process we need to know what you're experiencing," he said as he moved over to the cart. The assistant picked up a syringe and drew clear liquid from a small glass bottle until an inch was filled. "Just describe what you're feeling until it's over. Okay, slight pinch." Matthew flinched as the mouse injected the serum into his vein.

The room fell silent as all three of them waited for the serum to travel through the wolf's system. Fenner leaned an elbow on the small table, his knuckles resting against his lips. He used his other paw to tap the space bar on his laptop to bring the dimmed screen to full brightness. Sanders stood by the cart, organizing the rubber strap, glass bottle, syringe, and other equipment. Matthew stared at his arm, likely due to the lingering soreness from the injection. After about twenty seconds the wolf broke the silence.

"Whoa, my body just got warm."

Sanders looked over at the patient then walked by the camcorder, studying the lcd screen. Fenner didn't move, instead just grunting affirmation. It was the same initial reaction the previous patients noted, so the leopard was pleased. This meant the next stage would begin very soon.

Matthew sucked in a breath before saying, "It feels like my body's tingling with energy. I could run a mile no sweat."

"Any discomfort?" Sanders asked.

The wolf shook his head. "No, it just feel weird, but, wow, do my arms look bigger to you?" He held out his right arm and grasped it with his left paw, moving down the length of it. "It feels thicker. Heavier, too."

Fenner sat up straight to start typing out his observation and the wolf's reactions. No adverse reactions about a minute in. A positive sign. At the corner of his eyes he could see Sanders physically examining the patient's body.

"Arm does feel thicker, almost swollen." The mouse prodded at various muscles along Matthew's body. "Muscle mass has increased. No unusual side effects."

"Mm, I can feel it spreading." Matthew squeezed and ran his paws along his chest and his thighs. "Yeah, I do feel heavier. Oh wow, my pecs just bounced. Did you see that? I couldn't do that before."

Fenner smiled as he typed out these observations. Matthew's reaction was consistent with the previous patients' and the time table fit as well. This successful experiment would be good for-

"It's, um, really getting hot in here."

The leopard stopped mid key stroke. Matthew looked uncomfortable, his eyes filled with worry. His breathing shallowed and the doctor could see the wolf's chest pushing in and out rapidly. Fenner exchanged mystified gazes with Sanders, which meant neither of them knew what was happening. "Are you in pain?" That was all he figured he could ask to gauge the situation. He hoped it wasn't some kind of allergic reaction. The patient didn't seem to experience an attack of any sort.

"I don't know," Matthew said, gritting his teeth. "It feels like something's...building...gah!" The wolf suddenly straightened up, his body tense. He pushed his chest forward and his pecs swelled into two massive balls of muscle. Both Fenner and Sanders gasped as they observed two meat pecs hanging over the wolf's stomach, where fat seemingly melted away only to be replaced by cobblestone abs.

Fenner's mouth fell open at the sudden acceleration in growth. He could hear his assistant mutter, "Oh my God." Both of them were entranced by the incredible occurrence taking place before their eyes.

"Is this normal? My entire arm is buzzing-hng!" Matthew let out a sharp yelp as his shoulders blew up like balloons and his traps bulged against his neck. The growth rolled down to his arms where two moderately thick arms grew into absolute monsters. His biceps and triceps surged bigger, far wider than his head. His forearms filled with cords of muscle, thickening to match his upper arms.

Fenner stood in awe as he watched muscle mass filling the young wolf's frame bigger and faster than any previous patient. He immediately darted to his laptop to take down notes. "Sanders!" He called out to his assistant who merely looked dumbstruck. The mouse turned when the leopard tried his name a second time. "How did this happen?"

Sanders opened his mouth but no words came out. Finally he said, "Maybe it's just a strong reaction?" His eyes darted down as he came up with another explanation. But his attention was taken away as Matthew groaned loudly and his body continued getting thicker.

As Fenner completed another line of notes he groaned frustratingly. The wolf had probably just doubled his weight within a few minutes. He can't be having such a reaction to such a short dosage... Fenner's eyes widened and he beelined over towards the medical cart, taking a glance at Matthew, who shuddered as his back broadened and swelled. God, he could easily compete in a bodybuilder competition now. Fenner bit his lip as he passed Sanders. "You gave him just point-one cc's, right?" He heard his assistant saying he did but as he stood by the cart, his mouth fell open at the used needle. "You idiot! You used the wrong syringe!"

Confusion fell on Sanders' face who approached the cart. As he studied the needle, his expression changed into shock. "This means-"

"You gave him one cc. Ten times the dose!" Fenner ran a paw across his face. He wanted to scold his assistant for compromising the trial. But right now he had to think about his patient, who wasn't done growing.

"Ooh, my legs. It's like fuel's being injected straight into my muscles." Matthew groaned and gasped as his legs expanded. His shorts, once loose, now struggled to contain the wolf's massive thighs. Stretching and bloating with sharply defined muscle, his thighs pushed his shorts until they reached only halfway down those titanic bulging muscles. His feet nearly touched the floor while just inches above them, his calves inflated into footballs.

The leopard darted back to his laptop to continue typing observations. He instructed Sanders to check the video camera to make sure Matthew was still in frame. Perhaps this accident doesn't have to be a total waste. There was still valuable findings that could be obtained.

Matthew huffed as his body's growth slowed down. He was easily twice as thick than before with basketball-sized pecs that jutted out so far Fenner thought he could stick his entire pinky finger inside the deep crevice they created. His feet laid flat on the floor even while the wolf sat, the serum having boosted his height to accommodate such muscle growth.

"Wow, what a rush." The wolf's voice rumbled in the room. Matthew looked over his body, flexing some of his muscle groups. "I feel so powerful. My arms feel heavy, yet I can move them with ease." He flexed his right arm and his biceps surged into a thick ball with a peak that reached the middle of his forearms.

Sanders measured the wolf, gawking as he recorded each new measurement. Almost every muscle increased at least twice their original size. This also tripled Matthew's overall weight. It was a wonder the examination table hadn't broken yet.

Fenner walked over to the video camera, shutting off the recording and removing the SD card. This incident had come from an accident, but it was a fruitful one. There was much info to come from an increased dose of the serum and he'd have to experiment more with it. Perhaps, even, finding a personal use for it.