Jerad and Daniel were shocked by the injection, they didn't see it coming at all. Turns out it was meant to numb them as certain parts of the procedure may hurt them. After calming down a bit, they approached two chairs. They went and sat down on them. The doctor walked in and said; "You know what, on second thought, those hospital gowns won't be required. So immediately, they removed the gowns, they were just sitting there on the chairs.
"Are you ready?" the doctor asked, the boys simply nodded. The doctor began the experiment, a button was pushed and a cylinder with a tube in the middle of it came up through a small hatch in the ground below them, the doctor came and fixed it onto their cocks, making sure the middle tube went in through the middle of their members.
They were slightly aroused by this and became erect. Then several thin, yet flexible pipes dropped from the roof and two arose from the ground on the floor in front of each of them. The two on the ground were attached to Jerad and Daniel's balls. The pipes from the roof were attached to their biceps, triceps, abs, lats, forearms, neck, legs and their nipples.
The doctor then went over to the machine and started the experiment, the pipes came to life immediately and the cylinder started making a loud noise. The small pipe inside the cylinder started doing its job, and the boys cocks began to grow, slowly... They couldn't move because they were so aroused. Then the pipes began to inject a substance into their muscles, their biceps blowing up, their abs tightening, their pecs inflating, their legs expanding. They couldn't believe what was happening, they had gone from small nerds, to behemoth sized bodybuilders, hell, they were bigger than any bodybuilder in the world! As their muscles kept on growing, the pleasure increased. The veins kept growing, getting thicker and getting bigger... Their forearms now looked like someone had stuffed 4 footballs under their skin, they couldn't see the ground because of their enormous pecs, they were unable to flex their enormous arms very far because their biceps were the size of watermelons and their balls were so huge that they looked like Basketballs! Their cocks kept getting bigger and bigger, the raging veins throbbing, the knob, pulsing, they couldn't take it, and immediately they shot off their load into the cylinder and after about 5 minutes of constantly shooting off their load, the cylinder exploded! Their cocks were now 48 inches long and they couldn't even fit their enormous, muscular hands around it. It had finally stopped and the boys had enough. Then all of the pipes and needles detached from the enormous muscle men, what remained of the cylinder slid out of the cocks, then Jared and Daniel started checking each other out... They were both extremely sexy and they immediately knew what each other wanted. They started having sex, right there, on the laboratory floor. Precum was leaking out of Jared's cock until now, but Daniel started pleasuring him, he couldn't hold on, his cock exploded with cum right into Daniel's mouth and he swallowed all 12 gallons of it. But this time, Jared enormous balls had no cum left in them at all, and it was Daniel's turn... Daniel then shoved his cock right into Jared's mouth and unloaded his cum, 16 gallons! But there was something the experiment had done do Daniel's cum, when Jared swallowed that much of his cum, he started growing again, his pecs stretched out to 145 inches, his biceps 84 inches, his abs felt like it was a chasm between each one, his legs had been inflated so much that his enormous leg muscles looked about the size of his cock, his cock then grew and precum began to flow again... But the amount of muscle that Jared had was too much, he was starting to get too big, he had so much vein cover that all you could see on his legs, biceps, cock and all the way up his neck was just throbbing veins, pulsing, mesmerizing...
They both knew the amount of muscle he had was dangerous.
He thought he was about to explode.