"I wish I could be my brother!" Sam cried out. As soon as those words left his mouth, the orb raised up in the air and glowed. Sam covered his eyes as he felt the rays of light envelope his body. He could feel his whole body start to tingle and his clothes feel tighter. "Ohh..." Sam moaned a little as the light faded, leaving his clothes tight across his body. His shirt had hiked up exposing his belly button with developing abdominal muscles. His pants hike up his legs as well, leaving more of his bare legs exposed, though small wisps of hair started to appear. His growing toes were exposed as they grew out of his socks, but they soon snapped off completely leaving his growing feet out in the open. "Hmph! Guh!" Sam grunted and flexed his growing body muscles an made the rest of his clothes rip off, leaving him in nothing but his tighty-whities with his growing penis slightly visible from the top. "Whoa!" Sam exclaimed in a slightly deeper voice. He must have been about ten by the time, nearly on the cusp of puberty. The very symbol of that was growing exponentially. Using his new muscles, Sam ripped off his underwear with ease. "My pee-pee is so big!" he said as he touched the growing mass.
Getting to about twelve, the changes started to accelerate even more. Body hair was pouring out from ever orifice, big enough to be visible, but not big enough to look like a bear. A eight pack was forming nicely on his stomach. Sam knocked on it with his big meaty hands and felt how hard they were. "This is so freaking cool!" Sam shouted in an even deeper voice. Puberty had fully took hold and his penis exploded with growth. From a measly three inches to a massive six and that was just soft. "Ohh... My pee-pee feels funny... Guh!" Sam's penis shot up and got hard almost immediately. Sam couldn't tell, but it was a foot long in length. It pulsed with manly energy, veins popping. His testes dropped fully as he could feel them sink into his scrotum. "Whoa! Ah! Ah, ah, ah!" Suddenly Sam could feel something come up from his penis. "Ah,ah,ah,ah! Oh no! I'm gonna pee! Ahhh!" Sam couldn't stop it as forced puberty made him ejaculate for the first time in his life. A white, hot an sticky liquid shot out. Sam forced his hard dick forward and shot the rest of his load onto the floor below. A few seconds later, the ejaculation started to subside as his pubic hair formed a bush around Sam's testicles.
"What was that?!" Sam wondered. "Guh! Hngh!" But before he could stop to think, his body radiated an intense amount of energy. His arms and leg muscles exploded. His pectorals jutted out a bit becoming as hard as his abs. "Hngh!" Sam grunted as his body shook. He gripped onto the floor with his still growing feet and waited for the pain to subside. He clench his butt muscles as his ass hardened as well. He felt a little poop exit his ass as it did. "EW!" Sam exclaimed. Soon the pain did start to go away as his transformation neared its end. Though he could not see it, his face rearranged itself. His short brown air grew into a medium cut blond. His blue eyes turned green. His teeth fell out and grew back in a few seconds, with minimal pain. "Blegh!" Sam spit the remaining baby teeth out as his face became the spitting image of his brother. The transformation ended as the orb levitated back to Sam's hands.
"Wish Granted!" the orb seemed to say. "Would you like something else?" It asked. Sam looked around the room and saw the cum and feces on the ground and on his own body. "Can you clean this up?" he asked, now in his brother's voice. The orb did its thing and the room and his body were entirely clean. "Wish Granted!" It said again and asked for another wish. "Well... Sam wanted to wish for a change of clothes. "What the fuck is this?!!" But Sam heard someone curse from down stairs. Forgetting that he was stark naked, Sam ran down the stairs and into the living room where he heard the voice. In there was a five year old kid and one that was familiar to. A huge shirt with a wet spot hung off his body and pants were pooled over his tiny feet. "L... Liam...?" Sam asked, calling out his brother's name. The kid who looked like five year old Sam stared mouth agape at the naked twenty year old muscle god. "No fucking way... Sammy?!" the kid exclaimed. Now that Sam thought about it, it would have been weird for there to have been two Liams, so his brother must have turned into him. "Ye... Yeah..." Sam finally replied. "What the fuck just happened?!" Liam asked, but Sam could only stare at his regressed brother. Life was about to get much more interesting.