Ben decided to examine the amulet once more before going to bed. There's something in it that makes it look weird, although he cant put a finger on it.
He sat back down on the bed and stared at himself at the mirror. Looking at his son's scrawny body. Losing all of his muscles and his dick made him so much irritated that he could just throw the amulet out thr window, but no.
"Dang it!" He layed back on the bed with the amulet in front of his face.
"Being in this body while telling your son what not to do is hard. Damn it. I wish at least we're the same age."
That is when he saw the amulet glowed green. He was shocked for a while, but he thought it might just be his imagination so he decided to sleep it off.
——
As Ben was asleep in his son's bodh. The amulet did it work.
Without them knowing, both of them began to change.
For Ben, his son's skinny 12 year old body began to buldge in every direction. His son's (well technically, his) body began to grow in height until it reaches 5 feet and 11 inches. He looked like a kid with gigatism. His clothes wont even fit his new height. Then he grew wider as muscles began to harden, and his clothes began to rip apart. His chest ballooned and became rock hard pecs, and his nipples migrated downwards. His shoulders broaden as well. His limbs began to buldge and buldge, almost like his former body's but smaller. This completely tore off his clothes and left him naked. These are followed by his abdominal muscles which started gaining definition. They formed a 6 pack. His face started to change next, making him look much older now, but younger than old body. His face became much manlier as his jaw began to get squarer. He groaned in his sleep and it immediately dropped to a braitone as his adam's apple grow out. A thin moustache grew right above his lips.
Lastly, he moaned and absent mindedly began to paw his thin prick as it began to grow. Within seconds, it grew up into a 9 inch rock hard cock. He started jerking off in his sleep. Right after it was done growing his kid balls grew bigger which made him moan louder.
His transformation was done and he was still jerking his cock off while asleep. Ben in Brad's body grew up to 24 and a half years old.
As Ben was growing, Brad was left awake. He was resisting himself from touching his cock as it begged for attention, which made him unable to sleep.
He felt a sudden sting in his body as he twist and turn on his dad's bed, and immediately, stood up.
He felt himself shrinking, but getting much energized. He thought it was weird so he ran up to his dad's closet's mirror. There he was that he WAS changing.
His dad's beard was being pulled back into his face and gave him a much younger look. His muscles grew smaller but he still had those definitions. His change wasnt that big of a deal except that he surely do looked a lot younger. Like his cousin Keith who is in College.
The changes was complete and Brad stood there in surprise. He as well began to jerk off without him knowing. He fell back onto his dad's bed as the pleasure took over him.
Both if them had turned into 24 year old hunks. Ben's genes surely had gave Brad the good looks and muscles.
Together on different rooms, then jerked off and moaned. Ben fucking his own hand, Brad humping on a pillow.
They both cummed on the same time and passed out.
Lastly, the amulet flashed again. Turning each room to an empty bright place. Next, Ben and Brad, in their new bodies appeared sleeping beside each other, naked, in a new room, in a new reality.