Mario saw it first. As he admired his beautifully muscled roommate, the mountainous form started to deflate. The inches and pounds began to melt away, and
Adam looked down to see his mammoth dick begin to retreat.
"What's happening?" Adam protested, his shrinking going faster now. He put one hand on his dick and started to pull it, as if trying to keep it from getting any
smaller. "You said this was an enlarging powder."
"I'm not sure," Mario said as his roommate dropped below 7 feet. Thankfully the muscles were only shrinking, not evaporating too. "I think you might have
overdone it by using so much of the powder all at once."
"Oh, oh," Adam sighed, he was rubbing his massive pecs with one hand and jacking off with the other. "Sh - Shrinking feels so goo - good," he chattered, his cock
retreating below the one foot mark, his balls compressing themselves against his crotch.
Mario came over and started rubbing his roommates thick thighs. Even at only six feet, Adam's body appeared to be the result of countless weeks bodybuilding at
the gym. Getting bolder, Mario reached in to tickle Adam's big nuts as they dwindled.
All the touching was starting to pay off for Adam as his dick rocketted downwards. He felt like his whole body was a dick being jacked off as he shrank. At six
inches, it was getting hard to hold in a fist because of the extra muscles that had grown on his hand. He switched to a few fingers to finish himself off.
With about four inches to go, his prick finally gave up the fight and started shooting. Mario watched as his roommates' balls vanished back into the muscular body.
Nothing much came out the end of the little cock, but Adam's arms and legs began to thrash. Mario moved back to a safe distance as he watched Adam pulse
smaller and smaller, in the grip of the orgasm.
Finally things began to settle down, and Adam looked up to focus his eyes on the ceiling. He felt his short rod to see what was left of it -- it seemed to be about
three inches to him. He sat up to look at Mario, who suddenly seemed too tall.
"How much?" Adam croaked, still tired from exhausting muscles that he'd only grown in the last 10 minutes.
"Less than five feet," Mario said. "Probably more like 4' 9". But all those muscles still make you seem big."