A Bit of Growth

Story by bsaxagent on SoFurry

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What better way to take a small break from Sessions that to write a short story dealing with growth? A good friend of mine helped influence me to write this short little ditty, and it certainly helped to get some of my more extreme tastes down on paper.

Disclaimers and stuff: The purposefully unnamed panther belongs to me. If you do not like extreme bits of muscle and cock growth or excessive orgasms, well, I can't help that.

I hope you enjoy!

The panther pushed the bar up, the rusty metal plates clanging against each other as the weight moved until it was straight above his chest. His arms shook a bit from fatigue-this was the fourth set on the bench, and 315 pounds is certainly not light. He let out a grunt, sweat forming at his brow as he slowly lowered the bar. He felt each muscle fiber strain, each vein along his chest pulse as he reached the trough of the motion. He turns his focus to a spot on the ceiling, slowly pushing the weight up. His pecs flex as fibers and strands of muscle ripple underneath his sweat soaked shirt. The exhausted panther can hear his blood flow in his ears, pumping through his chest, fueling those muscles with the much needed energy to perform the lift. His arms and chest are straining from the exertion as he reaches the peak of the lift. A bead of a sweat enters his eyes, but he ignores it, shutting that one eye and letting the weight slowly fall again. His chest swells as he inhales, stretching the tight shirt some more. The strain of his chest returns. The burn of the lactic acid almost makes him stop right there, but he chooses to ignore it. If he stopped for every time that happened, he wouldn't grow, which was all he secretly desired. He wanted-no, needed-to be the biggest panther ever. The desire surpassed everything he longed for.

His chest flexed again, pushing the weight up. He let out a grunt as it reached the top once more, pecs flexed in a beautiful display of power and strength. He lowered the bar again. He couldn't see now that sweat was in his eyes, and he certainly wasn't going to stop to wipe them, not with this mighty pump. Every centimeter he moved, he could feel the muscle fibers tear, which encouraged the growth. He could feel each heartbeat pump more blood into the large mounds of muscle, supplying them with oxygen. He could feel the sweat drip out of every pore, a sure sign of the strain he was undergoing. One final push. He was halfway there. Just one more flex of his chest and-

He let out a strangled roar. The swell of his chest, the added pump, and the feeling of power went straight to his groin. He laughed a bit as the weight clanged onto the rack nosily, the rusty weight clanging together as they settled.

The panther walked over to the nearby mirror. Though he wasn't self-absorbed, it was near closing time, so it was ok to show off a bit. He peeled off his shirt, letting it fall heavily to the floor. The air conditioning cooled off his pumped sweaty chest. He grinned to himself, and gave it a testing flex. The fibers bunched up, making the muscle swell under his fur and skin. He could help but be proud of himself. All of these years of training, and he now had a hint of the massive pecs that he longed for. He brought a paw up and cupped them, feeling the heat of the engorged muscle. He squeezed, feeling the tired fibers give only slightly under his paw. He flexed again, feeling his finger spread as the muscle thickened again. He watched as striations rippled along his flexing chest, spanning the entire width of the muscle. Thin veins rose to the surface, texturizing the smooth fur that lay over them. The pectoral shelf left a slight shadow along his chiseled abs as the light above him shone down. He ran his paw along his ripped stomach, feeling each bump and crevice...those worked just as hard as his chest did, making sure his form was stable and secure. He smacked them, watching the tight skin ripple along the muscle. It was such a mesmerizing and arousing sight.

He wiped his brow, taking a second to inhale his masculine scent. It wasn't pungent or overbearing, but it certainly had weight to it. The smell almost reminded him of cedar, almost an earthy wooden smell that reminded him of the jungle and forested areas where panthers originally inhabited. It was seasoned with the salt of his pores, which left it only slightly bitter, but not enough so to not be enjoyed.

He grinned again as his cock throbbed. He peeled away the waistband of his shorts, letting the thicker musk of his groin escape before peering down. A hefty bulge was in his boxer briefs, a sure sign of the arousal he was experiencing from this partial self-worship. If only he was larger....

His heartbeat picked up. It was subtle, but certainly noticeable. His chest felt heavier, though the panther initially dismissed it as the pump from his intense workout. But as he looked at himself in the mirror, he could only watch in amazement as his chest almost seemed to swell with each breath. At first, he thought it was a trick of the light. Despite the light overhead, it was still dark in this corner. He was tired, and surely his desire for growth was fueling this hallucination. But as he continued to stare, he couldn't help but squeeze his pecs again. They felt thicker. Solid. Fuller. He felt the edges strain only slightly as they seemed to widen. He watched as another vein popped above the surface, and soon he could feel it pumping blood into his chest. His black nipples were slowly being pushed down. The shadow across his abs grew darker, and the indentions in his abs grew deeper-or did those muscles become larger as well? He slowly ran his paw along them to make sure. They certainly felt larger, thicker, though they still retained a supple quality about them.

He laughed once he realized that he wasn't seeing things. He was growing! But what of the rest of his body? He only felt the pump in his chest and abs, why hadn't the other area been affected? Out of a slight whim of curiosity, he pulled the waistband away from his body once more. A thicker wave of musk hit him in the face, making him flush with arousal. His bulge looked fuller, certainly denser as it throbbed. He could feel a wet spot forming at his tip. He wasn't even erect yet and he was already leaking...

His cock throbbed. The black shaft suddenly elongated to the familiar length of eleven inches, filling out the crotch of his boxer briefs. The panther couldn't resist but hooking the waistbands of his shorts and boxer briefs around his churning balls, letting the cock spring out, a trial of pre steadily leaking onto the floor. He felt the heavy length pulse and the taut skin stretch as it fill with blood. He held it loosely in one paw, feeling the growing heat as the organ reached past twelve inches, thirteen, fourteen...the head flared majestically, the glans pulled so tight and so infused with blood that it had become shiny, even without the leaking pre that was beginning to splatter on the floor.

He gave the large shaft a stroke, shuddering at the newly found sensations of added length. Fifteen inches had past and it felt so heavy, so thick....His fingers stretched further and further apart as the shaft thickened, almost matching the size of his wrist. Thick veins rose to the surface, angry with arousal. He could feel the added testosterone fill his bloodstream, fueling the hazy lust and the growth of his muscles. His chest throbbed, his abs grew tighter, his cock lengthened...all the panther could do was stand there, grinning stupidly as his desires were finally reaching actualization.

The panther's breathing grew heavy. His grin would falter and then return as he watched his entire body thicken. It was now reaching other areas, too. He watched as his calves flared; each head thickening under his skin. He could feel the weight of the muscle grow heavier with each passing moment, almost making it feel like his calves were sore and pumped, but they weren't-at least, not at the level they would be at after a strenuous workout. He rose on his toes, watching both head spread outwards, resembling a cobra's hood. Thick veins ran along the outer edges of the muscles, slowly working their way through the muscle. His legs itched, especially with the added heat from the growth, but he didn't bend down to scratch it. He'd miss the development of his body, and that's something he absolutely could not do.

His shorts seemed to swell, and the fabric pulled taut against his skin as his quads bulged outwards. The fabric pulled up as the two larger heads that flanked his knee grew, striations visible and increasing by the minute. A thin network of veins drizzled along the surface of the heads, only to thicken as the growth continued. They felt so heavy, and almost pulled his knee down. His hamstrings grew after that, helping to stabilize his legs. The long strands of muscle grew thicker, pushing against the back of his shorts. His hips grew wider as well, forcing his stance apart as they helped support his still growing torso. The smaller muscles on the side of the hips, including the abductors and adductors-though they didn't receive as much growth-still grew stronger with each passing moment, slowly pushing the limits of the material. His toned ass packed on more and more toned muscle, giving it a striated butterfly shape.

The panther grunted as he heard the sound of snapping threads. He scrunched his eyes, feeling the incredible discomfort of having his expanding legs confined by the now tight shorts. He let out a partial whine as his balls became trapped in the fabric, only to swell more and more, straining against the crotch of the garment. Thinking quickly, he bent down and flexed his glutes and quads, and the fabric ripped on all sides, relieving the growing pressure. He let out a sigh of relief and instantly tore off his weakened boxer briefs-so much for just a little show.

His balls slapped onto his meaty thighs as they were released. They had swollen as well, reaching the size of softballs, and still growing. They pulsed with need, and he could feel his seed churn inside of them. They were so hot and full...the panther couldn't help but let out a needy whimper. A spurt of pre lanced out and splattered against the mirror. His cock lurched forward again, the cock root thickening deep inside of his groin to support the now eighteen inch length. Veins crisscrossed along the surface, almost like a poorly designed road system, desperately trying to give all areas of his shaft the necessary blood supply to keep functioning. The panther gave his cock a squeeze, watching it thicken slightly from the trapped blood. He watched as the cords of his forearms danced, swelling in places and receding in others as he gently stroked his shaft. Thick veins ran through the cords, giving him a very hardened look. His palms began to sweat from the heat of his cock. He took another look in the mirror, and watched as his large bicep peak each time he drew his paw near the base of his shaft, growing larger and thicker each time he made it to that spot. His triceps emulated his calves by flaring outwards, the horseshoe shape growing thicker and thicker, more and more striations of the muscle becoming visible, more veins lacing the surface as his arms moved. Massive shoulders capped his arms, each strand of muscle on display under his skin, and more and more of them becoming apparent as he grew. Massive traps ran from his neck through the center of his back, framing his torso in an intimidatingly powerful way, giving off strength as well as masculinity. His lats flared outwards, the massive muscles almost peeking out from his arms. He felt them grow heavy, almost too heavy, but he knew his body would take it.

He took an arm up and flexed it, the growing scent of cedar filling the room steadily, mixing in with his sweat and pre that was now liberally coating the floor. He grinned at the massive peak of his bicep, several veins lining the top, pulsing with the increased blood flow. His lat flared outwards, opening up the arm pit to release more of his scent in to the room. Thick obliques and a shredded serratus anterior ran along his rib cage, impressively defined and supple with a slew of thinner veins running along them. He could feel those pump blood from the muscles as well, showing how much more aware he was of his growing body.

His cock throbbed again. Another shot of pre splattered onto the mirror, this time with more force. He grinned as his cock steadily lengthened by another inch or two, almost making it ache with need. The head flared again, the bottom of the glans spread wide and thick as his urethra bulged. The massive panther ran his paws down his abs again, feeling the thick veins that ran from his middle abs straight into his groin, almost seemingly feeding his cock with arousal and masculinity. He circled the base, his fingers not quite touching as the shaft thickened, slowly becoming as thick as his elbow. He gripped it tight, watching the veins thicken as he trapped the blood inside. The skin grew almost painfully taut around the shaft, and the ridges of the spongy chambers becoming quite visible. It grew another inch as the blood pooled, and when he released it, it didn't shrink. He grinned again, squeezed with more force, and flexed his PC muscle, making the already turgid flesh distend even more as large amounts of blood became trapped inside. It was over two feet long when he finally released it, so heavy and thick. He felt his balls pulse, and another wave of hormones flooded his system. His breathing became slightly labored as sweat formed at his brow again, the temperature of his body heating the air around him. The musk intensified, still infusing with the pre that was now almost flooding the area the monster of a panther was standing in. He grunted as he began to stroke his shaft, body still growing.

Sweat began to form at his palms, making the already slippery shaft even more so. With wet fluid strokes, the black paw glided along the growing shaft, which was reaching twenty-six inches long. Deep in his brain he was wondering when it was going to stop, but the pleasure felt too good, his body was too alive, too sensitive to care about such trivial matters. He closed his eyes, and continued to stroke away, listening to his labored breath and the drops of pre and sweat as they hit the floor.

His balls pulsed again. He could feel his climax approaching, though his body continued to pack on more and more muscle. Pecs collided against each other and began to push up on his chin. Biceps rubbed against the sides of his pecs, collecting the sweat that had formed there. He began to thrust his hips, feeling the sweat drip in between his butt crack as his glutes worked to push his hips forward. Adductors rubbed against adductors, creating a strange friction due to the heat, fur, and sweat. He grunted as he fell onto his knees, making a resounding thud in the process. His heel dug into his thick glutes, and his thick hamstrings rubbed against his calves, all of it stimulating the nerves leading straight into his massive cock. Thirty inches long now, pre was spewing out of it, leaving a thick mess on the ground which coated his legs. His tongue lolled out of his mouth, tasting the salty sweat that had dripped down from his forehead. He scrunched his eyes again, cock throbbing crazily, whining and grunting deeply as he neared climax. His balls sat on the ground viciously churning. All he need was a few more strokes and-

The panther let loose an earth shattering roar, which was almost indiscernible from the sound of the massive amounts of cum exploding from of his cock. The mirror was instantly coated, and most of the blast had ricocheted off of the now painted surface and onto the massive panther. Another blast of cum erupted from his cock, making the mirror crack from the force. It rebounded again and splattered behind the kneeling panther, coating him in the sticky white fluid in the process. His eyes crossed and a third, fourth, and fifth blast splashed against the mirror, finally shattering the point of impact. He grunted as several more splashes and ropes of semen spewed out, leaving his body and floor covered in his own fluid.

Even with the dizzying sensations, the panther was amazed that he was still growing. He could feel his knelt stance spread, his legs lengthening underneath him, his balls growing thicker and thicker. His torso felt heavy and all he could do was grin as his cock throbbed, growing another couple of inches longer, and perpetuating an endless cycle of growth...