GAINZ: Bro’s Milk

 Originally posted on Tumblr: May 24th, 2021

 

“Mmmmm, you smell that? That’s power!” Dillan said sniffing the protein powder on the kitchen counter. One of the biggest containers at the store. The jock was looking for a way to up his bulk and this powder was the ticket. Opening it up revealed nothing but a sea of white. The odor emitted was overwhelming.

“It smells like baby milk. Like the kind Aunt Brianna feeds baby Ayden.” Dillan’s little brother, Bentley, leaned over the counter, standing on the stool his brother had placed for him. He didn’t know why his brother was so obsessed with getting bigger.  

“You mean like formula? No, no this is totally different.” Dillan said whining. He wanted to be cool in his younger brother’s eyes. Sure, he was the strong jock type, but his brother was never impressed with his physique or determination. However, he was convinced his brother would be floored if his body was bigger. Unfortunately, he had hit a plateau with his body. Though once he got over, he was convinced Bentley would be impressed.

“This is for the GAINZ bro!” Dillan said, flexing his muscle, His tank top brilliantly showing off his arms. He smirked at his little joke after all the name of the brand was GAINZ. A fairly new brand that promised great results over the course of the recommended time duration. Certainly, wasn’t cheap either.  Dillan wouldn’t be making another purchase like this any time soon. The warning label on the back however was very large: DO NOT CONSUME MORE THAN ONE GLASS FULL A DAY. GAINZ HAS ADDICTIVE QUALITIES AND…

“What does add addda mean?” Bentley tripped over his tongue.

“Uhm, it means you want more and more.” Dillan’s jock brain wasn’t exactly up for defining words. Thankfully, he was old enough to have a bigger vocabulary than Bentley even with his straight C’s.

Dillan took a few scoops of GAINZ and dumped it into a glass of water. Bentley watched as his older brother stirred the powder, and the clear water became a murky white.

“It even looks like milk.” Bentley tilted his head.

“Actually, looks like my cuuuhhhhh… maybe I shouldn’t make a joke about that around you. Mom might kill me if you repeat it.” Dillan gave a stupid laugh. As the powder settled, Dillan held it up smiling. A perfect concoction. He threw his head back as he chugged the liquid down.

Bentley watched as his brother’s Adam’s apples bobbed up and down with each swallow, Pulling the glass away from his lips Dillan let out a BURRRPPPPP.

“Gross,” Bentley said waving the burp away from his face, laughing.

“Nah, man that’s what being a jock is all about” Dillan blinked. His stomach growled and the older brother felt a rush of energy. Smacking his lips Dillan grazed his fingers over his abs. “That’s some good stuff.” But his little brother was right it did kind of have that baby milk taste and smell. Dillan let out guttural grow involuntarily staring at the rest of the GAINZ powder.

“Dill?” Bentley asked. His older brother’s gaze was miles away.

“Yeah.” Dillan snapped his head back. He walked over and tightened the top back on the powder. The warning was right this shit was addictive. He wanted more of this milk, but not now. There was no way he could just rush this. That was not worthy of a jock like him, for now he needed to go work out. He put away the GAINZ in the fridge. Then, he grabbed one of his countless jugs of water clogging the fridge. “Let’s go see what this is about.” Dillan clasped his hands together and lured his younger brother out to the garage, where he had set up a make-shift gym.

Bentley sat on the floor, watching as his strong older brother began working out. Dillan did, jumping jacks, one handed push-up, and other exercises before picking up dumbbells. Then it was onto arm curls and squats. Bentley was so enchanted by how his brother was moving, Dillan wasn’t getting tired and kept going, Pumping iron. Dillan veins began to pop out as he counted sets.

It all looked so cool to Bentley. He wanted to look that cool too. Dillan continued with his exercises, staring into his own eyes in the mirror he had set up to monitor his formations. This workout was on the nest level he could feel the power of GAINZ flowing through him. So, in love with himself Dillan never noticed his brother sneaked off to the kitchen.

Bentley climbed back onto the stool. He placed a glass on the counter along with the powder. just like he had seen his brother do. He also decided to borrow one of Dillan’s water jugs to mix with the powder. The kid had no idea how to mix the solution. 2 tablespoons? What the heck was that? He took a spoonful of powder and dumped it. Then he tried to pour in the water, but a good amount ended up puddling on the counter.

He spun the spoon around fast in the glass just to see a little whirlpool. His drink never became as murky as Dillan’s. Bentley decided to add more powder next time. For now, he was ready to drink. He threw his head back and chugged the drink just as he had seen his older brother do. Bentley smacked his lips. It definitely tasted like something for babies. But it also tasted good. Really good! Bentley wanted more. He made another glass and drunk it. This time adding more powder.

“Mmmm,” Bentley’s hummed warmly as his body shivered. The poor kid didn’t have the mental fortitude, or even the routine disciple like his brother to combat the addictive effects of GAINZ. Bentley wanted more. No. He needed more. The kid gathered more glasses of various sizes and set them on the table. Powder collected at the bottom of glasses as Bentley recklessly poured, following up his spree with water. The kitchen began to smell like a nursery.

Bentley wanted it all. He grabbed a glass, then another and another. The milk flowed into his gullet and deep into his awaiting stomach. When one glass was done Bentley kept going there was no stopping in sight. Bentley swallowed more as his stomach began to bloat out. The more milk that disappeared the greater his stomach grew.

BUUURRRPPP

The belch erupted from deep within Bentley. The boy looked down at his stomach; He let out a laugh running his hands over it. His belly was as big as aunt anna’s when she was pregnant. He poked his stomach as the milk began to settle within. Then Bentley began to worry, should his stomach have been this big? He knew he shouldn’t have drunk all that GAINZ, but it was so good.

The bloated stomach released a gurgle as if his plumbing was clogged. Bentley hunched over as his gut burned, but it was a good feeling.  A loud snap sounded throughout the kitchen. The boy’s spine was stretching. His height inched up from 4’9 to 5’4, then 5’7 and still going.

‘What the?” Bentley slipped off the stool but managed to catch himself. There was no longer a high drop for him. Bentley studied his taller body. He was as thin as an ice pick. His clothes were warped, their child size trying to cling to Bentley’s body. The GAINZ filled stomach cried again as more protein was digested and forced into Bentley’s system. He had always been the smallest kid in class, but Bentley was getting the feeling that wouldn’t be true forever.

As each pound of milk was shed from Bentley’s belly, it constituted a transformation. Deep within the boy’s head he heard a chanting GROW. At first, it was indistinguishable from Bentley’s own head voice, the pitch got deeper and deeper, egging the boy on. He tried to stand but tripped, catching himself against the countertop. His joints began to pop as his muscles burned. The GAINZ energy was shooting through his veins and making him grow. Just like his brother his blood vessels rose up, sending the protein through his body.

The smell of alethic sweat hit Bentley nose and he swore it was his brother, but as the scent lingered Bentley realized it was emanating from him. His feet, chest, and thighs were hurting from haven swollen up under clothes. Beef began to stack on Bentley’s torso, and his shoulders forced more space between them. The strength flowed into the boy’s arms, thickening them up. His biceps and forearms wouldn’t stop. His height was getting closer to 6’4.

Next, was his lower half. Bentley’s ass popped out juicy yet firm. He cupped a cheek filling up his hand and bouncing it. His pants were straining to contain so much. The calves sculpted themselves into perfection, following the thighs lead. More milk digested as abs started to become visible and thicken.

“That’s it! Fucking grow BRO!” The voice sounded in Bentley’s head again. He opened his eyes looking for his brother. “Dillan?” Bentley asked looking around. No one was there. His cock started to get hotter as it grew. Bentley’s balls dropped and alpha sperm began its production. It filled his testicles, swelling to the size of oranges. His cock wasn’t far behind forcing itself longer and thicker. Shirt, pants, and shoes were reduced to scraps.  

Bentley stood his underwear, alone in the kitchen. Comical, really. He no longer looked like a boy rather a man at the end of puberty, yet there he was in his cartoonish briefs.

“You gotta keep growing. Don’t stop!” The voice said.

“What? No, I don’t want to grow anymore. I want my brother.”

“Don’t be such a baby, Come on I know you want it.” The Voice egged Bentley on, “There’s still a few glasses on the table. Drink them!”

“NO!” Bentley cried. His eyes shot open. The voice that came out of his mouth was the same deep voice in his head. “I want my brother.”

“Just trust me your brother’s going to love it too. He’ll love the gains.” The voice said proudly.

Bentley reached for the next glass of GAINZ. Taking hold of it, he felt his mouth water, begging for it. His stomach growled impatiently as he finally ingested his next helping, earning him another paunch of jiggling stomach.

“Wait a minute we need to see these GAINZ up close. Let’s go look in a mirror.” The voice stated.

Bentley smiled as he took the last glass of GAINZ and went upstairs to the bathroom.

—

Meanwhile Dillan had been going hard for about an hour. He turned around and noticed his brother was missing.  The little dude must have snuck away during the 45 min mark Dillan guess. Then he flexed in the mirror. “Too bad he’s going to miss all this.”  

Dillan needed to use the restroom, so he went back inside. His mind did bring up the possibility of having a bit more GAINZ. He’d never had such a good workout before. Though once he came to the kitchen that dream was crushed. All of their family’s glasses were on the counter unwashed accompanied by an empty GAINZ jar. “That little idiot,” Dillan thought, “Mom’s going to kill us.”

That’s when Dillan remembers the warning label on the back. His brother had consumed the entirety of the jug. He must have known how dangerous that was Dillan was going to kill him! Save him but kill him too. Dillan raced off to find his brother, running up the stairs calling his name. Though once at the top he smelt that GAINZ scent, so akin to baby milk. Not to mention a burbling sound coming from the bathroom.

“Bentley you in there?” Dillan walked over cautiously. A moaning started from the other side. Without hesitation Dillan began ramming the door to burst it down. When the door flew open Dillan rushed inside only to be surprised.

What was waiting for him was not his little brother rather, a man in Bentley’s underwear standing in the shower. The man’s gaze was not on Dillan, even as the teen burst through the door, rather than himself in the mirror across from the shower. Dillan stood slack jaw as the man’s faux belly shrunk and disappeared as the man got thicker in return. In the man’s hand was still one last glass of GAINZ.

“Watch me grow bro.” The man finally looked at Dillan. He began drinking the glass not varying most of it was running down his body. Dillan assumed perhaps his stomach was to full. Dillan watch stunned as the GAINZ came into contact with Bentley’s underwear and they morphed from briefs to boxer briefs to contain his newer, adult package.

Dillan’s didn’t know what to say  his younger brother had put on 20 years. All from some protein powder. What the hell was in it? But that wasn’t the real problem, Dillan’s throat had gone dry watching the milk spill down his brother’s body. Bentley was just wasting it!

Bentley couldn’t control his new size and fell back in the shower as even more milk poured down on him. Dillan watched as Bentley’s chest jutted forward. The pecs grew bigger. Thicker. Firmer. Fuller.  As if they themselves were filling up with milk.

Dillan couldn’t take it anymore, he needed his GAINZ. He dove onto Bentley’s torso licking up the discarded milk.  He soon found the left nipple and began sucking. Nothing. Dillan lick and sucker harder but as the chest grew nothing came out. “Don’t be fucking selfish!” Dillan slapped Bentley’s chest as if that would coax milk out. Dillan moved over to the right nipple just as eagerly sucking. It was obvious Bentley’s chest was just filling up with pure muscle. But the twin knockers were crudely taunting Dillan with all the GAINZ it had absorbed that rightfully belong to Dillan.

Bentley grabbed at his huge man tits, with his massive hands. “Look at these Gains bro!” He stated, smugly. “You could look like this in a few more year if you keep trying.”