A new cock

Ken eases the door shut with a soft click and as he turns he catches sight of himself in the mirror and gasps. "What the fuck...?" He looked down between his legs puzzled at what he saw, it looked like his cock in every way but bigger! His cock when soft was usually about 2-3 inches long and fairly skinny hanging over a tight set of medium small balls, but now hanging between his legs he saw a thick 4+ inches of cock nestled between a set of large low hangers. Hi foreskin was previously tight and barely covered the head of his cock was now longer and looser with a bit of an overhang. His cock had clearly gotten bigger overnight.

As Ken examined his new cock he started to get aroused and it started to grow, he grabbed his cock and slowly started to jerk himself curious to see how much different it would be. Soon he had his new cock rock hard pointing out and slightly down from his body. It was so much larger he thought as he shook his hips side to side and watched his fat cock slap against his hips as it flopped back and forth. It was clearly much larger in both girth and length than it had been yesterday, and Ken searched through the drawers in the bathroom for a measuring tape, curious to see how much bigger it was.

When he found the measuring tape he slapped his hard cock down on the counter to measure it he laid the tape along the length and found he was now just over 8 inches long and 6 inches in girth. "Wow, i'm even bigger than John was" at that moment he realized he was also somehow taller, yesterday his waist had been about even with the bathroom counter and now his cock was resting comfortably on the counter. "I must have grown 6 inches or more" he thought to himself...

He looked at himself again in the mirror with a more critical eye and saw that his shoulders were much broader than they had been and his musculature seemed to be larger overall. His biceps and chest were bigger and stronger, his abs popped like a bodybuilders, his glutes like orbs of steel, his muscles all over were just clearly bigger and more defined. It was as if overnight he had become a hyper muscular, more manly version of himself, and he liked it. The serum had clearly had an effect on him as well as John he thought, and it was something that he needed to keep an eye on as it was an unpredictable side effect.

Ken figured it was time to see if John was up and how he was taking the changes that occurred, he eased the bathroom door open and saw...