Juan looked over at his roommate and bro Kevin perplexed. “Bro, are you trying to read that book again, bro?”
Keven looked up from the old worn book he got as a joke. “I’m gunna figure this thing out and turn us back already. And I told you not to call me ‘bro’.”
“I told you not to worry about it bro. You’re not gunna figure it out bro. Just accept it.” Juan jeered at Kevin as he pumped his arms in a double bicep pose.
Six months prior, Juan and Kevin found an odd book in the local used book store. It was written in some language neither of them even remotely recognized, even with them speaking a combined 7 languages from around the world. They thumbed through it quickly to see if anything popped out at them. Around the half way point, they noticed that there was a single page that they could read, in Elvish of all languages.
The page described an incantation that would summon a barbarian’s strength for the speaker. The nerds quickly decided this was an elaborate joke that only people as smart as them would get. Regardless, they figured it would make a nice prop for D&D night.
The next Friday, rather than out at a club, they were with friends drinking lightly and playing their favorite classes, Juan as an Elvish wizard and Kevin as his halfling fighter. An hour in, almost the whole party was one hit away from death as the army of kobolds showed no signs of stopping. Juan, being the last party member with enough health to do anything, decided to bust out his new ‘spell book’ and dramatically spoke the incantation (which he’d gotten permission to use earlier from the DM).
Without him realizing, Juan’s muscles began to swell as mass quickly filled out his small frame. After only 20 seconds of swelling, he’d easily put on 15 pounds of muscle. Everyone at the table looked on amazed at the transformation before them, causing such a large disruption that they had to call it a night so they could be amazed at Juan’s new mass.
The added beef only lasted for about an hour before Juan shrank down to his normal size. That hour seemed to change him. There was a new twinkle in his eyes of desire. Juan was going to do this again.
Over the coming month, Juan memorized the incantation and was using it every day. At first, once he got home, but more and more often until he was doing it the moment he woke up, during every break, and especially before bedding some twink that loved his new barbarian cock. On top of that, the more he used it, the more ripped he became, not adding nearly 95 pounds of pure muscle.
Everything seemed fine until Kevin noticed something was different with Juan. Normally Juan was as smart as ever when muscled up, but lately that intelligence seemed…diminished. Kevin saw that Juan wasn’t picking up on things as fast as he used to. Juan also had completely stopped reading and his perfect 4.0 had dropped to 3.2 for the quarter.
Kevin decided to ‘hang around’ Juan for a couple of days, and quickly realized that he had not once said the incantation. When confronted, all Juan would say is “I like it this way bro” before doing some dumb flex that made him look even dumber than just hearing him use the word ‘bro’ did.
Juan’s playful jock persona came forward once again as he tried to take to boring book away from his nerdy friend Kevin, grabbing the book. Kevin held on to the book tight, knowing that Juan would try hiding it again. With a hard pull, Juan pulled the Kevin off the couch he was sitting on and onto the floor, the book still in their hands. Kevin attempted to twist the book out of Juan’s hands before Juan yanked the book out of Kevin’s hands.
Juan ran to his room, book in hand, and quickly being followed by Kevin’s heavy pants. “Get back here you bastard” spitting it out between breaths before jumping onto the much larger man, causing them both to land on the bed, Kevin sitting on Juan’s lap as Juan laid back on the bead laughing.
“You caught me bro.” Juan bellowed before busting up laughing at the absurdity of the one-sided struggle.
“Give me back the book! We gotta turn you back!” Kevin yelled while ‘holding’ Juan’s arms down. Kevin could feel something stirring beneath him. In one movement, Juan had flipped them over and was laying on him, growing cock pressed against Kevin’s ass.
Leaning into Kevin’s ear, Juan whispered “What’re you gunna do about it bro?” while grinding his ever hardening cock into the small ass beneath him. Kevin could see the book laying across the room and tried squirming away from the hulking jock. Juan held Kevin tighter. “Not that bro, this.” Keeping one arm around the frail nerd, Juan pulled his pants off to let his cock rest on Kevin’s pants.
Panic boiled in Kevin as he realized Juan was about to fuck him. Desperate to get away, he tried squirming and kicking harder. His pants loosened and he could feel his friends large cock continue to grow erect. “Don’t do it. Please, were friends.”
“Bro, your ass feels good around my cock.” Juan pulled Kevin’s loosened pants down, revealing the straight virgin ass his cock was resting on. “It’s so warm and making me so fucking hard bro.” The squirming of Kevin had done nothing to aid in his escape but had had gotten Juan rock hard.
Using one arm, Juan pushed Kevin’s chest against the bed, pinning him, and used the other to line up his cock for the initial thrust.
“Juan, please stop. This isn’t you. It’s that damn book.” Kevin pleaded as he felt the precum of Juan’s cock start lubing up his tight hole. There was nothing he could do. He wasn’t strong enough to fight back, unless… he couldn’t. It was a foolish idea. Months of studying that magic book had done nothing but help him memorize the spell. The spell that would add muscle to his thin body. Muscle that could help him escape.
Juan began to force his dumb cock forward. Feeling his pre lube up the tight hole, he let out a deep moan. Looking at his bro, he could tell he was thinking about something. The one part of his brain not focused on his cock was trying to puzzle out what it was. In a moment of muscle clarity, he figured it out. “Do it. Do it bro.”
“Wha?” Kevin looked up seeing his massive friend. Muscles covered in sweat as he fucked Kevin’s virgin hole. ‘I’m not strong enough to fight back, unless I use the spell.’ Kevin looked Juan square in the eye and said the incantation.
Instantly, Kevin could feel his body changing. A warm rush running though each and every vein as muscle pulsed its way into his body. After 30 seconds it was over but wave after wave of intense mind-numbing pleasure washed over his brain, slowing his thoughts. The urge to fight left as his ass tightened to feel every thrust of his friends cock.
“Oh bro.” Kevin moaned, having lost all ability or desire to fight. Kevin just wanted to revel in the feeling of Juan’s big cock fucking his muscle ass.
“Fuck bro, so good. Gunna…” Juan’s cock exploded deep in his bro’s ass, depositing his thick jock seed deep.
Upon feeling Juan breed his formerly virgin ass, Kevin’s modest cock let it fly, covering them both in thick cum.
Breathing hard, the two cum covered muscle men embraced to ride to orgasm to it’s conclusion.
Once coming down, Kevin noticed something odd. He could think clearly again, but there was this body high that persisted. His body felt so good, and needed to move. In the back of his mind, he knew this was a mistake. He should have never said the incantation. But now that he had, maybe he should roll with it, and when it wears off, he’ll reevaluate the harm of doing it again…and again.
He looked up at the massive hunk of muscle that was Juan. “Wanna go play some soccer bro?”
“I thought you’d never ask bro!”
