It all started out of nowhere. Two siblings that consisted of Joe, an 18 year old man with a body most men twice his age dreamed of and Lucy a little girl of nine year's of age. They were simply minding their own business when some sort of smoke crept up from the floor and wrapped around them.
"Joey?!" "Lucy?!" The two sibling yelled out to each other as the mysterious smoke lifted them into the air and pulled their socks right off of them. "What?!" Joe looked down at his bare feet. He wiggled his now free toes to make sure that what he was seeing was real. "Joey?! What's happening?!" "I... I don't know! I... Whoa!" "Ahh!" Just then, both of their arms were lifted into the air and their shirts started hiking up their bodies. As their clothes covered their faces, both of them felt a tug at their waists as their pants and undergarments were also pulled off of them. The shirts fully came off soon after leaving both Joe and Lucy buck naked. "Holy Shit!" Joe cursed in front of his sister as his ripped body was in full view of her to see. His seven inch soft penis flapped up and down in the open air. Joe tried to cover his modesty, but the smoke kept this arms to his side. ""Joey..." Lucy watched in a mixture of shock and amazement as her brother squirmed.
Soon after, something even weirder started to happen. Joe looked down. Despite floating in the air, his feet were at the same level with his sister's feet. That's why what was happening was so bizarre. Joe looked back towards Lucy. Staring straight ahead, he could barely see the top of her head, but soon more and more of her face was becoming visible to him. "What the fuck?!" Lucy was in shock too. In the beginning, she was eye level to Joe's massive pecs, but soon she could start to see his chin. "Joey?! You're shrinking!" "And you're growing!"
"Ahhhh!!" They both yelled as their bodies began to change even further. Lucy looked back down at her feet. They looked slightly bigger then before. "Guh!" Lucy let out a little grunt as each toe popped out and got fatter. The rest of her feet were growing in conjunction with her toes until they were twice as big as before. Wisps of hair grew on each individual toe. Meanwhile Joe's feet were doing quite the opposite. The hair on his toes receded as each one got smaller and smaller. "Guh!" Joe let out a grunt of he own as he could feel the rest of his feet go back into his legs. The shrinking subsided and Joe once again wiggled his now smaller toes. They looked so small, like a little kid's. But not even a boy's. They were dainty, almost like a little girl's. "No fucking way!" "Joey?! I have your feet!" Lucy was the first to voice her thoughts. "And I have your feet!"
"Ahhhhh!!" They both yelled once again. "This can't be happening! I can't become a little girl!" Joe thought to himself as his hands went the way of his feet. "Ew! Ew! Ew!" Lucy thought. "I'm gonna have THAT! I'm gonna have a weiner!" Lucy hands likewise did the opposite and grew out. She clasped her hands together as more and more strength was coming to her. By then, each of them had exchanged heights completely. Lucy's body was all lanky, while Joe's muscles still were very much visible.
"Guh! My body!" Joe cried out as he started to sweat. He could feel his muscles pulsate. It felt like he was going through a grueling workout. "Guh! Gah!" As he squirmed, his muscles finally started to contract and loosen. His pectoral muscles flattened, his arm and leg muscles sunk back into his body. His 12 pack of abdominal muscles each individually vanished. "Noooo! Not my muscles! Anything, but that! Gah!" Joe violently shook as all his body muscles were gone. He started to piss onto the floor. "Ah... Ahh...." Joe moaned as tears fell from his eyes and drool from his mouth.
"No! Noooooo!" Lucy yelled as she realized he was next. No sooner had she done so, did her entire body start to burn. "Ah! Ah! It hurts!" Lucy squirmed as her body exploded with muscle. "Guh! Gah!" Her arms and legs burst out with muscles. Packs of rock hard meat rippled across her stomach, and her faint breasts hardened and spread out into a rectangular shape. "Gah! Joey! Jooooooeeeeeeeyyyyyyy!" Lucy yelled out as she too soiled herself. An Adam's Apple grew in her throat. She rubbed her now huge hands on her neck. "Ahh! Ahhh?!" As she tried to clear her throat, her voice got deeper and deeper until it resembled someone she knew.
Joe, having finished pissing himself, watch in horror as his sister gained his voice. He could see her face changed. Her hair got shorter, her face much less rounded and a small amount of facial hair adorn her lips. She was now a splitting image of himself. "Holy shit!" he said in a much higher voice, one that resembled his sister. Finishing her own soiling, Lucy faced back forward as what greeted her was her own face where her brother once was. There was now only one major difference. Lucy looked down at the pulsating organ that adorned the little girl her brother had become's body. Joe looked at the massive man that was once his kid sister with nothing jutting out from her hairy pelvis.
They simply said nothing as they each felt their respective sexual organs twitch. Joe's cock stood straight up at full attention as it started to get smaller and smaller, still ramrod stiff. "No! Noooo!" Joe yelled out as he grabbed at his dick in a desperate attempt to keep it out, but it simply kept getting smaller and smaller. His testicles also twitched as his balls sucked back into his insides. "Guh! Guh!" Joe grunted as his empty testes folded back inside of him. His dick followed suit drilling a new hole into his pelvic area. The remaining loose skin folded up and formed a clitoris as the hole his dick made became a new vagina. He was now for all intents and purposes, a nine year old girl and his sister Lucy at that.
Meanwhile Lucy felt a burning sensation in her groin as two sacks of skin descended from her insides. "Guh! Guh!" Lucy let out her own grunts as two hard balls filled the empty, hairy ball sacs. The burning sensation than concentrated on her vagina as she could feeling something push out from inside her. "Guh! Gah! It hurtttttttttsssss!!" Lucy cried out as a mushroom shaped piece of flesh pushed out of her. The tips of it came out completely, bringing with it a stalk of flesh. It started out soft, but as more came out of her, it got harder and straighter, until it pulsed at a behemoth size of thirteen inches long and as thick as a beer can. "Guh!" Lucy let out one more grunt as she started to ejaculate. Thick ropes of sticky cum shot across the room. "Holy shit!" "Ah, ah, ah, ah! Joey?! Joey, what happening... to... me... Guh!" One more grunt caused once more thick shot of cum and the burning sensation subsided as Lucy's new penis dwindled to small, but still respectable size of seven inches. Not only was he now an 18 year old man, but he had for all intents an purposes become a true man.
The smoke then started to move the both of them down. Their feet hit the floor. Lucy felt off balance in a much bigger body and fell on her butt, soiling her behind with the cum and piss from before. Joe was able to stay on his feet, thought that too still got wet from all their bodily fluids. The two of them stared at each other. Lucy looked back down to find her new massive cock and balls staring at her. She looked back up at her brother now a splitting image of her old self. "Ahhhhhhhhhhhhhhh!!" She screamed. "Ahhhhhhhhhhhhhhhh!!" Joe screamed back, now fully realizing he was now his nine year old sister and his nine year old kid sister was now a monster of a man.