A solution for sibling rivalry?!? (Tg) Draft (Patreon)

“What in the world is this?” Jeremy clutched the strange object in his hand. It felt rocky and a bit damp due to the rain. A strange blue symbol sat in the center of it, but other than that it appeared like any ordinary rock. “What did that weird girl say? Just squeeze it real hard and you’ll be towering over your sister in no time!’” Jeremy looked back at the park where he met the strange woman. She was long gone at this point but the bench she was on was littered with various black and blue hairs. “Heh, her costume was pretty good.”

While shaking his head, he made his way back home. This morning's jog really turned out unexpectedly with a weird fox girl cosplayer talking to him, and then the rain started to pour down. He just wanted to go home and eat some breakfast.

When he arrived home, he went straight to the kitchen. Though to his surprise he wasn’t the first person there. His sister Amber seemed to have also just entered, holding in her hand his cereal. So he naturally spoke up to her.

“Hey. Those belong to me!” He said.

“Excuse me? Those belong to us, why shouldn’t I eat some?”
“I bought them with my money!”
“You mean the money you ‘borrowed’ from mom and dad?”
“I-I- Come on sis! I don’t eat all the food you like!”
“Haha, yeah. That’s because you don’t like anything I like!”

Jeremy shook his head, then put the stone he was still holding for some reason on the counter and stormed towards the table. He wanted to take his cereals back by force, but amber caught his hands midair.

“Try to stop me again when you finally manage to open at least a jar of pickles by yourself. Now, please let me eat in peace.” Amber said, and lightly pushed Jeremy back, making him almost trip backwards.

Jeremy had enough. He had almost lost balance from just a light push of his sister. Her Tyranny was just unbearable sometimes. So he stomped his way upstairs, though his pathetic little legs failed to make any major impacts along the way.

“Argh, I have just about had it with her!” He slumped on the bed with a small *thump*. He rolled on his back and held his arm out to stretch. That’s when he remembered. “Hmm, I could have sworn I left this back in the kitchen.” Jeremy took another look at the rock, though something was different about it. The symbol at its center was now glowing a faint cyan color. “What in the world?”

Jeremy wanted to drop the stone, but that’s when it hit him: He couldn’t let go of the stone anymore. Shook his hand, opened and closed it, but nothing seemed to work. It was like the stone was stuck in his palm. And it seemed to be getting…smaller? No, It was sinking into his skin. Gently and slowly it sank deeper, like it was placed on quicksand.

And if that wasn’t weird enough, Jeremy noticed that his hand was changing colour. A way darker pigmentation appeared where the stone laid and started to spread to his entire hand. It engulfed his fingers in no time at all. Jeremy looked at the mirror across the room and gasped. “What the hell?”

He walked up to the mirror, taking note of his altered skin tone spreading all across his body, when he noticed something else that was different. Something less… human. A series of small scale-like bumps appeared all over his arms and shoulders. They were cyan in color, just like the rock’s symbol. Jeremy’s lip started to quiver. He wanted to scream and tried to, but nothing came out, not even a soft whimper.

Jeremy was mesmerized by his changes, the idea of running out and getting his sister or anyone to help him was merely a passing thought. Before long, Jeremy felt pain all over his body. He gritted his teeth and grabbed his stomach. Every part of his body was pulsating, bulging out ever so slightly. Jeremy felt a surge of energy and power he had never felt before. He looked back up at his reflection and his expression of shock slowly morphed into a wide smile.

“Muscles! Finally some muscles!” He shouted, not even realizing that his voice had changed a bit. Nothing much; it just got a bit deeper and received a feminine undertone, but he was too distracted with the rest of his body. His scrawny limbs practically blew up in size as the muscles underneath grew in all directions. From his legs to his arms, even his core. Everything was getting harder and buffer by the second and he loved every moment of it.

He started to feel invincible, and that began to intensify further. Everything around him started to shrink, but that only seemed to be an illusion, as in all actuality he was the one growing out of proportion. Even after growing to a height of over 2 meters, his body still kept going. It only lasted a little bit longer, but in the end his body was titanic.

Jeremy was about to leave his room, to show off his new physique to his sister. But something was off, he couldn’t tell why, but whatever he was feeling felt… wrong. He looked back at the mirror, trying to piece out what was happening. It was hard for Jeremy to pinpoint, but it was starting to get harder to think and he developed a small headache that only seemed to grow overtime.

“Grrr, why can’t I figure it out!?” Jeremy felt his chest beginning to hurt again and noticed it pulsating. “My pecs?” Jeremy grabbed around his nipples and felt his hands slowly becoming more and more full as his pecs became… something a lot more feminine. “No, I know the problem!” He ripped his shirt off with immense strength, causing his newly formed melons to bounce all over the place. “I’m not wearing a sports bra!” He should have noticed how wrong that sounded, but with two boobs in front of him, he obviously needed a bra, right?

He pulled a shirt out of his drawer and was about to throw it to the side, as suddenly it shrank down and turned into the tailor-made bra he knew he needed.“There we go. Now on to show Amber~ She is not going to believe this~” Jeremy left the room, unaware that his bedroom was now more suited for a girl, complete with a closet full of girly outfits and posters of boy bands on the walls.

He practically stomped down the stairs, this time though filled with confidence rather than anger. With every step he took, his pants seemed to fit him a little bit less. It was like his ass was getting bigger, but he knew that he must have imagined it.

So, when he reached the bottom of the stairs, his impressive ass together with his killer hips now gently swayed from side to side with each step, though that was something he didn’t notice at all.

But what he did notice was the sharp stinging pain that suddenly appeared in his groin without warning. Out of reflex he moved his hands to his privates, but underestimated his own new force. As such he completely smashed his malleable dick into his body as a fresh slit opened up to replace it.

“Ooooo~” Jeremy let out a pleasurable moan as *she* rubbed against her new sex. Well, her old one, she thought. The ground now seemed to tremble with every step she took. Fortunately, her parents bought a house that suited dragon demi-humans like herself. “Hmm, wait, where is my–” Her words were cut off as she felt a sharp pain above her ass. “Ooo, aaa~” Or maybe it felt pleasurable to her. A large scaly tail sprouted above her rear and pushed out further and further. “There it is!”

She had to crouch down a little as she entered the kitchen. Jess gave out a hearty laugh at the sight she saw. Her sister’s chest was drenched in milk and the bowl from before was nearly empty. “Jess, stop stomping around when I’m trying to eat!” Amber said, annoyed by her sister’s behavior. Jess simply gave out another laugh. She picked up the bowl and slurped down what was left of her sister’s breakfast. “Aaaa, yummy!”

“H-hey. Give that back!” Amber yelled, though Jess didn’t listen and just let out a giggle, her neck being tickled by the long hair that was now growing down her back, tying itself up in a stylish ponytail.

“Try stop me when you finally grew some muscles yourself~” Jess laughed and flexed for her weaker sister, now sporting a set of eyes that showcased one silver iris and one a glowing purple.

“How about you try to study for your exams for once!”

“Studying won't help you get your bowl back~ Thanks for the meal, by the way.”

“H-Hey! Don’t just leave after eating my food! Geez…” Amber shook her head as Jess left the room, then started to smile as she went back to the drawer. From the furthest depths of the drawer, she pulled out a chocolate bar, and took a satisfied bite out of it. “I bet Jess’ has already forgotten about these. She should really start writing things down for that goldfish brain of hers~”

And with that, everything was exactly where it was at the beginning. Two siblings getting at each other. One being the smart one while the other was the strong one. Only this time in a bit… more unusual way. But maybe everything changes again if Amber happened came across a certain somebody that could give her an advantage over Jess.

Or maybe everything would stay the same again. Who knows?