Michael began to feel the warmth in his bicep while he still felt the warm embrace of Jason's meaty arms on his tiny frame. Jason began to reach for his belt line and fumble with his zipper, still locking tongues and pressing Michael into the wall. Suddenly, the warmth turned to a searing flash of energy which coursed through Michaels bloodstream, snaking form his arm to every inch of his body. He moaned deeply into Jason's mouth.
"That's right," Jason whispered in return "let it out."
And let it out he did.
In the blink of an eye, Michael began to creep up a few inches in height. At first, he was just barely tilting his head upwards to meet Jason's mouth, but he suddenly was at the perfect eye level. The building heat all around him quickly turned into building pressure as he felt himself being pumped up. He felt himself getting heavier in different places, almost like he was being filled up all around with dense meat. His arms began to thicken rapidly, first starting as twig they soon bulged outward in tense biceps several inches tall. He felt his shoulder round out before bulging into a perfect, strong ball shape. From here, the pressure moved down to his pecs, which practically didn't exist before, but now ballooned out from his chest in a second. He felt them inflate and chisel into strong rocky boulders. At this point, his tee shirt was stretching all across the top to contain his hulking mass, causing the bottom to lift and expose his midriff. Michael continued to moan deeply, slowly decreasing in octave for every passing second.
Jason began to notice at this point that Michael was getting bigger. He now had to tilt his head up to meet Michael's mouth, but now he was too stunned to breath.
Michael's pulsing energy began to snake downward, his exposed abdominal began to churn and push out cobblestones of thick abs. With every second, his shirt lifted a little more, revealing a rapidly forming six pack, soon forming the start of an eight pack. His pants seems began to tear under his expending legs and calves. His quadriceps exploded right through his jeans and his glutes stretched his briefs to the breaking point. By now, his shirt has completely shredded into a few ribbons, exposing his barreling chest and tightly bound back muscles.
Jason began to feel inferior, standing next to a literal goliath with muscles nearly twice as big as his. Even worse, Michael looked like the world's greatest bodybuilder, and now stood at least 6 and a half feet tall! He had no idea why this was happening, but holding onto an immense hulking man made Jason's cock harder than ever before.
Michael began to hump unconsiously, slamming his now 350 pounds of muscle into Jason as his coursing energy began to burn the front of his pelvis. His cock, now totally untouched, bulged obscenely through his ruined jeans and tightly bound underwear. Combining his rounded muscular bubble butt and this new growth, he quickly split his briefs straight down the middle. His cock flopped out, rapidly filling what little space was left between the hulking god and his puny jock. His cock began to reach out and touch Jason, now about 7 inches away, and push upward to lengthen even more - 8, 9, 10, 11, 12 inches of monumental man meat. Michael's balls began to inflate like balloons into two huge grapefruits.
With one final moan, which rounded into a deep echoey yell, Michael began to slow down to a grinding stop. He reached a total height of 6 feet and 8 inches which nicely complemented his now 400 pounds of rock hard muscles.
He glanced down to the puny 6 foot tall college athlete. Jason was once a towering figure of manhood to him, but Michael was now a god in comparison.
With a deep voice that reverberated the space around them, Michael gave one command.
"Get on the bed"