Sibling Rivalry – Part 16: Unexpected Surprises

[kenstaff]

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Dwayne had his younger brother stunned at the appearance of his new muscles, as he flexed for 12 year-old Dayton in the doorway of his bedroom.

Once his proud confidence had fully realized he’d accomplished the task of impressing his sibling, Dwayne quickly became aware of something he hadn’t been prepared for. Dayton must already be going through puberty, as he had a rather impressive sized erection protruding from his crotch.

The scenario left Dwayne a bit dumbfounded as to what to do next, as he lowered his arms and relaxed the tension he had in his torso. The older teenager couldn’t believe his younger brother was already going through the changes he had only just gotten used to himself after puberty hit him last year. How was it possible that his little brother was already able to sport an erection? And one that was obviously bigger than his own!

“Why’ya stop?” Dayton demanded “Flex sumour! Show me yur legs! How a bouts yur calves?” the aroused youngster continued, excitedly

“Naw, naw Dayton, thayt’s ‘nuff fer nayuw.” Dwayne protested “Ah gotsum hawmwerk tu do.” Dwaye grasped the edge of the door, in an attempt to partially hide his naked torso self-consciously behind it.

Dayton reached out and stopped the door from closing. “Awww, c’mon ‘bro show me s’more muuscles…”

“Naw… ahhh… ahh gawta stuudy nayw.” Dayton pushed at the door, unable to ignore Dayton’s surprising strength at holding his side of the door.

“Awright… but you gonna show me sumore layter? Raight? Flex sum mowr?” the younger brother asked, his face lit-up and eyebrows fully raised.

Suddenly Dwayne saw his brother in a new light. One he almost feared, despite being only 5’2" - and weighing – what, Dwayne thought to himself – 120 lbs?

“Maybey ‘brah maybeh… weyul see..” the teenager said as he closed his bedroom door.

After closing the door, Dwayne leaned back against it breathing heavily while a desperate look of confusion contorted across his face. His mind raced with questions that he tried to find answers to but he didn’t like the ones he was coming up with in his head. He looked down at his hand, sweating as it held the door knob. He twisted the door lock and then dashed towards the box he’d brought home, scooping up the sample bottle and phone. He rested the high-def wireless webcam on his computer desk, in the place he’d imagined it would reside - but was unable to take any pleasure in positioning the anticipated piece of technology – after witnessing what appeared to be his own brother’s arousal at the sight of his new-found muscles.

“Is mah leyttle ‘bruther a faygett?” Dwayne thought to himself, horrified. “Ayn’ awredey gowin’thru pewburtey? Sheyut man, the leyttle fuk’s gawt a bigger dick than mey!” Dwayne couldn’t shake the disturbing thought. “Ayn’he’s strawng, fuuk!”

Without even giving it a second thought – as if instinctively, Dwayne opened the sample bottle and tossed the contents into his open mouth and proceeded to chew.

“Aym ahh sum sawrtuh faygut maygnut?” He said aloud as he chewed, playing with the new phone, sliding his finger around the touch-screen.

Then the tennessee teen began to feel the warmth build-up inside him and his eyes shot open wide “Awww shiyutt, ahh ate the piyul.”

Dwayne felt as though electric volts were shooting through his veins and his eyesight began to fade just as he saw muscles twitching in his veiny forearms. Then he buckled and fell to his knees in his bedroom, dropping the phone.

- - -

Mr. Z was doing research at his console on possible reasons why his Flexadrinazine antidote was failing lab tests when he noticed the icon representing Dwayne’s phone, flashing. A quick tap brought the phone’s camera online as a window slid over to center-screen and enlarged in front of him.

Unsure of what he was looking at, Mr. Z tapped at his controls.

: Engaging phone diagnostics
:
: Complete.

Mr. Z’s eyes widened as the picture rotated and tilted – allowing his screen to render the proper view of Dwayne’s phone camera.

“Him too?” Mr. Z mumbled out loud as he felt an erection fill his tight jeans. “What’s up with these boys, they’re all suddenly taking as much as they can get of my Flexadrinazine.”

Mr. Z watched as Dwayne’s muscles twitched and throbbed and then began to enlarge, as the teenager hunched over on his knees with his phone on the floor in front of him – giving Mr. Z a perfect view of the teenager’s muscle-growth.

The older man sat back in his chair and pulled open his jeans at the waist, allowing his erection to bounce out and stand fully erect at the visuals on his big screen monitor. He watched and stroked as Dwayne’s chest, shoulders and biceps swelled with thick heavy muscle and veins sprouted across the thin skin.
The teenager then positioned himself up on his knees, as if giving his body more room to expand – and allowing Mr. Z an even better view – complete with improved lighting – as the teenager’s thighs swelled and sprouted hair. The sight was enough to give the older man an unexpected orgasm and he was unable to prevent any of his fluid from ejaculating up and onto his touchscreen console.

The warmth of the fluid happened to land on Dwaynes’ phone icon, causing the window view to zoom in on Dwayne’s now impressive protruding pectorals and the high definition view allowed Mr. Z to get a good look at the newly sprouted array of dark chest hairs that now spanned across the ripped thick teenage muscle chest. The sight further caused jism to erupt onto the console, this time hitting another icon, which caused a window to slide over and open beneath Dwayne’s phone video.

The new window revealed another muscle boy, from behind flexing at his bathroom window – causing Mr. Z to squeeze his dick in response, preventing another orgasm. The man frowned in confusion wondering who the boy was.

Mr. Z. leaned over and plucked multiple tissues from the box to his left and wiped as much as he could from the console, then tapped at it.

“Oh my…. Oh… oh my wow.” The man muttered in shock, pleased at his discovery. “Here I thought you had broken it.”

Mr. Z was enjoying the newly enhanced muscular back-side view of Pavel Trovotsky in Northern Ukraine. The webcam he’d apparently given up on as being broken was apparently fine and sitting on Pavel’s desk, aimed back at his room – where the 15 year-old Ukrainian hunk was showing off to himself. The brilliant man had completely forgotten – preoccupied by recent events – that he had sent a second batch of Flexadrinazine to Pavel last week and he must have received it.

The sight was so impressive, Mr. Z knew he’d be unable to keep in another orgasm as he watched the uber-wide muscles of Pavel’s lats flair out as the teenager flexed for himself in his bathroom mirror. Mr. Z watched the impossible young swollen muscles tense and flex under a coating of erotic teenage body-hair in the reflection as the young Pavel then grasped his hands together and tensed his pectoral muscles, causing them to bunch up and bulge outward and protrude out so far from the boy’s chest – Mr. Z came instantly. His ejaculate hit the underside of his chin, while the remaining juice covered his tight t-shirt but the man didn’t care. He’d not only regained what he had thought was the lost visual of Pavel’s webcam – but also found the boy looking incredibly huge and erotic, apparently responding very well to his new delivery of Flexadrinazine.

Then Pavel turned and strutted his hulking teenage muscle body towards the webcam and Mr. Z. tapped at his console in a panic to shut the webcam off so the boy wouldn’t see the device light on and become suspicious. Mr. Z looked at the world clock on the bottom of the screen and took mental note of Ukraine time.

Pavel was about to initiate premium pay webcam chat, now pumped and ready to show off his big new muscles to willing muscle fans who were ready to pay to watch the enormous, 15-year-old hairy, handsome, now musclebound Ukrainian teenager flex on webcam.

While Mr. Z had been enthralled by Pavel’s webcam view – and still was now that his premium webcam chat was active, he’d not noticed Dwayne had gotten up and disappeared from view.

- - -

Dwayne’s vision had returned and he was now in his bathroom, flexing his newly grown muscles in the mirror with a worried look on his handsome young face – that now sported a square chiseled jaw, lined with a 5’oclock shadow, making him look much older than he was. The teenager lifted his arms up and flexed a double bicep and his eyes shot open in surprise when he saw the dark bushels of armpit hair under each arm.

Suddenly the huge teen heard a loud thud at his bedroom door and he turned to see it fling open and Dayton stumble in.

“Yew awraigh Dwayne?” Dayton shouted, his head swinging side to side in a panic, looking for his brother. “Ahh heard sumthin sowndin layke yew were chokin’ ” Then the boy saw the new muscle-jacked Dwayne, arms flexed upright in his bathroom. The sight and smell of the dark armpit hair under his enormous biceps made Dayton young nostrils flair and his jaw drop, then his eyes bulged and his tongue slowly appeared and began to make its way out of his mouth .

Dwayne watched in horror as his little brother’s crotch suddenly grew into an enormous bulge, while the 12 year-old began walking towards him, drooling and licking his lips.

“Yew smeyul amazing Dwayne!” said Dayton as he approached his older muscle jacked brother, sniffing the air and staring at him hungrily.


End of part 16

[Kit Werecat]

Oh, My.

I think we have a new candidate for Flexadrinazine!

Dayton's baseline physiology sounds wonderful - strong, sturdily built, tall, well endowed, and oh, so EAGER for muscle! And the pheromones are obviously hard at work on him already!! I wonder if being exposed to them before you take a dose of pills gives you some sort of edge? Makes one more receptive and responsive to their effects? Sort of the way flexing and stretching before your workouts assist in helping to make your muscles grow?

Problem is, Duane took the last of the pills, and is starting to have second thoughts about what this stuff does. I sincerely hope Dayton can work around this, and REALLY impress his older brother!!


And of course, what's happening with Chad, Drew, and my new hero, Matt (although Dayton may soon join him and Chad on my Worship List)?


This is one of the best stories I've seen on MGS. Terrific possibilities, story-wise here.

Sixteen chapters, and sixteen Thank Yous later, I still want you to know I can hardly wait for the next muscle-packed chapter!!


Please keep it coming!!