"So boys, I'm going to need you to strip down to nothing. I know it may be embarrassing to be naked in front of your friend, but to make all the measurements you must be naked. Anyway, if your test is successful, you two won't see each other naked any longer." The doctor instructed sinisterly.
"What exactly are we testing anyways?" They asked in unison while stripping down.
"Can't say, it would ruin the experiment. Okay, so you first." He said looking at Ryan. Quickly the doctor pulled out a tailors measuring tape and measured Ryan all over including his penis. The boy blushed when the man touched his privates. Then he measured his height and weight before moving on to do the same thing to Bradley.
After the measurements she took their clothes, dropped two old fashioned gray undies. The boys put on the underwear to find out that they were too big for them, they looked like kids playing with their dads' clothes. Seconds later the doctor came back in and gave each boy a very weird collar that they put around their necks.
The boys looked around to find the room like a prison cell with mirror walls. There was to cots with built in pillows and no blankets, a toilet, and a sink. Both boys sat on the edge of the cots and stared at one another silently.
"So. . . Now what?" Bradley asked bored.
"I don't know. Maybe they are expecting us to get an allergic reaction to the fabric or so..." Ryan said equally bored.
"Ditto. Sheesh, at least they could have left us with some board games. I mean it feels like a prison in here." Bradley complained.
Suddenly the boys felt a sharp pain in their groins as if they had been kicked there by a horse. They laid still cringing in pain as their bodies started to change. Ryan was the first to notice what had happened. As he felt around his underwear he realized that his balls had grown to the point of being pinched by the seems in the briefs.
He can't believe it, the once loose briefs now were painfully tight, he tried to take them pff but the collar quickly gave him an electric shock to stop him from doing it. He felt that place wasn't as good as he thought, he can't do anything but let the changes continue even faster.
Bradley, seeing what happened to Ryan, just moaned in pain and, apparently pleasure as his changes continue as well. Both stood up and stared at each other, quickly looks of terror spread across their faces as they realized their bodies were paralyzed.
Quickly each shot up in height. Ryan went to 5'2, then 5'7, then to 6'6 in a matter of seconds. Bradley shot up to 5'1, then to 5'9, stopping at 6'8. Next was their muscles as they began to swell with mass. Both looked like muscular high school students in tight briefs, but that was quickly getting worse.
Their small boy dicks grew to 7 1/2 inches long soft, and about 4 inches in girth. Then came the hair. Bradley's legs quickly became covered in dark brown hair that started at his ankles and moved to meet his pubic hair which started to crawl up the middle of his abs to meet his new chest hair. His arms grew a thick coat of hair, and his face grew a full beard.
The same thing happened to Ryan only seconds after Bradley but he had black hair instead of brown. Finally they felt a dizzying feeling as their baby fat disappeared creating a adult masculine appearance.
Following the final touches their collars stopped immobilizing them and both "boys" gained control of their bodies. Quickly they began to inspect their new bodies, before turning to the other.
"Holy crap Ryan!! You! and me! We! We look like adults now!" Bradly said in a rich baritone voice. He covered his mouth after realizing how different he sounded now.
"Damn, even our voices are different!! What are we going to do?! We can't leave looking like this!!" Ryan yelled in his deep sounding tenor. He sounded completely panicked. "What would our parents say?!!"
"Not to worry men. For your successful test we're going to give you a very good payment. But first we need to make some more tests on you." The Doctor said over the intercom.
"I don't care about the payment. I just wanna be back to normal!!" Ryan shouted.
"Unfortunately, you can't deny our offer. We have complete control of you and we can make our tests even if you disagree. Both men stared at each other frightened before an electric shock moved through their bodies. Both Ryan's and Bradley's bodies began to get aroused and their now adult dicks started to get hard. Being young they quickly cummed inside his old fashioned gray briefs. They felt so ashamed and humiliated but at least they're still covered.
"Ok, it's time to take some measurements. Take your clothes off." The doctor coldly said and both guys looked at each other in fear.