“I want to be 25 feet tall!” Livie exclaimed. “You sure you want to get that big, I mean, we still have school tomorrow”, asked Jeff. “Yes I’m sure”, said Livie, “you don’t want me to step on you again, do you ‘big’ bro?”... “Alright fine, fine”, said Jeff. “I actually thought you were going to kill me with your huge foot last time”. “Teehee, I wouldn’t do that to my tiny bro”, she said as she wiggled her huge toes. “Alright I just have to aim the emitter at you and just press this button aaand... There!” He started the emitter and watched in awe as her little sister slowly became 25 feet tall.
Her feet were the size of Jeff himself. He didn’t even come up to her sister’s knees. Her legs were thicker than Jeff’s entire body. She was about 5 times as tall as Jeff, but he noticed that some, well, other things grew as well. Her chest was no longer flat, Her boobs, while still small compared to her height, extended two feet away from her behemoth body. Jeff just stared with his mouth open, the looked down to her waist and saw her ass was rounder than it’s ever been. “Hey there little bro, you like my new ‘extensions’, looks like your ten year old giantess sister is sporting some curves.” Jeff was in awe. He was extremely attracted to his little sister’s huge, perfect body. Livie then picked Jeff up in between her toes, and then sat down. She’s always been super flexible and strong from doing gymnastics, swimming, and track. In fact, she was stronger than Jeff before she grew. She bent her leg and moved her huge foot so it was next to her breasts. “Do you like this new part of me, little man?” Livie teased. “Um, I, uh-,” Jeff wasn’t able to respond. “Go ahead, touch your giantess sister’s tits, I know you want to”, purred Livie with a low, sexy voice. Jeff slowly reached out and touched her massive breast. It felt so perfect to Jeff, he started stroking it. “Oohhh yeeaaaah”, moaned Livie, “keeeeep doing that”. Both Jeff and Olivia were enjoying that moment. “Alright, that’s enough”, Livie commanded, as she took Jeff away with her titanic feet. She placed him back on the ground in front of her. “It’s getting late little bro, and I can’t fit inside the house”, said Livie. “Why don’t we sleep out here together, I’ll keep you warm.” Livie told Jeff. Jeff quickly agreed as he’d love to sleep on his giantess. She took her shirt off and lied on her back. “Climb on, little bro, heehee” Livie said as she pat her huge belly. He climbed on and lied down on her soft, warm skin. She then rested her huge hands on top of him, acting like a blanket. “Goodnight, tiny” Livie teased. “Goodnight sis”, Jeff responded.
Jeff woke up earlier than Livie did, it was just about sunrise, and since his little sister was still asleep, he wanted to explore her perfect body. He started at the neck, and moved his way down. His first stop was her breasts. He touched them again, only this time he lifted her bra (she had one since she was beginning puberty) and stayed there for a few minutes. He wanted to suck her nipples, but saved that for later. He then moved down until he reached her huge ass. He touched it and then Livie twitched. Then he moved down to Livie’s feet. They were as tall as Jeff, and they smelled. He shoved his face into the sole of her foot and took a huge whiff. It smelled so good, and it aroused him. He started humping her little sister’s humongous foot. It wasn’t long before he cummed into her sister’s bare foot. That was the best Jeff had ever felt in his life. His sister then woke up and couldn’t find Jeff. “Jeff, where are you?!!!” Livie yelled nervously. “Down here” said Jeff walking towards her face. “Oh thank goodness, I thought I lost you. Also, why is my foot wet?” Livie asked. “I don’t know, must be morning dew”, Jeff lied. “Okie! Are you ready for school Jeff? I’m so excited!” Livie squealed in excitement. “Wait, how will you fit in the bus” Jeff questioned. “We don’t need the bus, silly”, Livie told Jeff. “I can just walk there, and I will carry you in my hand”. “Good idea”, Jeff agreed. She grabbed Jeff in her giant hand and started heading toward school. On the way they saw the school bus that was supposed to stop at their house. She moved her leg and blocked the bus. It ran into her behemoth foot, and then Livie put Jeff down and picked up the bus. “Wow it’s so tiny” Livie exclaimed as she looked inside. “Heeey theerrre” Livie said to all the tiny children. They were all terrified so she set the bus back down. “Bye bye” Livie said as the bus quickly drove away. Livie picked Jeff back up and headed towards school. When they got there, they quickly realized that Olivia wasn’t going to fit. “I’ll just stay out here and wait for recess”, Livie suggested. “Good idea”, Jeff agreed. Olivia sat outside by the entrance and blocked it with her huge arm. “Heehee” Livie giggled while all the kids, older and younger, tried to get past her.
Recess came and everybody went on to the playground. Livie looked for her tiny older brother until she spotted him. “Hey there little bro, I think I’m going to play with all the other people here, it will be fun. Teehee”, Livie laughed as she went and teased all the school kids. She played with them by picking them up, lightly stepping on them, threatening to eat them, and trapping them between her legs. Then she noticed that another kid was picking on Jeff. He must’ve been older than both Livie and Jeff. He was pushing him, stealing stuff, and just being mean. She got super angry and stormed over there and grabbed the kid off the ground, and moved him super close to her face. “Listen here, if you ever go anywhere near my older brother again, I will crush you under my bare foot, do you understand?” The kid nodded. “Good”, said Livie as she placed him on top of the school where he couldn’t get down. She then picked up Jeff and said “I’m sorry that had to happen to you Jeff, I promise won’t let anything ever happen to you again”. She then kissed his entire face with her soft lips. “Mmmmmmm you taste good”, Olivia said. “Maybe I should EAT YOU MWAHAHAHA!!!”. “Noooooooooo!!!” screamed Jeff. “Heehee just kidding C:”, giggled Livie. “Oh thank god”, said Jeff.
After school ended, Livie was waiting for his tiny brother at the door. Once he came out, Livie became super excited. She grabbed him and kissed him for 10 seconds in her giant lips. “I missed you”, whined Livie. “I wanted to play with my tiny older brother more”. “I missed you too big sis”, Jeff responded. Livie carried Jeff home in her hand. Once they got home, she had an idea: “What if I put you in mom’s car and I could play with it”, Livie asked. “That sounds like fun but aren’t you too small to play with a car like it’s a toy?” Jeff explained. “Hmmmm, yeah you’re right, then how about you grow me bigger?” Livie said. “Ok, how about 100 feet tall?” Jeff suggested. “Omg yes”, said Livie. He aimed the emitter and hit the grow button. Livie grew and grew. Soon she was 100 feet tall. She was a sisterzilla. To Jeff she was a skyscraper, a giantess. She was 20 times taller than him. He only came up to her ankles. And her feet were ENORMOUS. They were three times the size of him. He was about the size of her big toe. “I’M SO HUGE!!!” Livie yelled in delight. Her voice was super loud and it hurt Jeff’s ears. Livie bent down and picked him up with two fingers, each as long as his body. “You are so adorable omg!!!” Livie cooed as she kissed his entire body. “You’re as tall as a skyscraper, you could step on a car and crush it under your feet!” Jeff exclaimed. “I could crush you under my pinky toe little bro”, Livie said as she put Jeff down and stepped on him. Her foot completely covered him, and she could feel Jeff wiggling under her which made her laugh. “Stop it, that tickles”, Livie giggled as she lifted her foot back up. “Wanna get in the car now, little guy” Livie asked her older brother. “Yeah, let’s do this”, Jeff said.
He got into his mom’s car and closed the door. Suddenly he felt the car being lifted off the ground, and carried into the backyard. They played for a few minutes but then Livie accidentally stepped on the front of the car, so Jeff didn’t get hurt. The car was basically half crushed by the ten year old’s bare foot. It turns out that their neighbor, Janice, was watching and she told them that she was going to call their mom and tell what happened. “No, you can’t do that!” Livie exclaimed. She tried to grab Janice but she quickly ran into her car and started driving away. “Oh no you don’t” said Livie. She caught up to the car and put her huge finger on the roof which stopped the car entirely. She then ripped every wheel off of her car and then lifted her finger back up. “You aren’t going anywhere” Livie said as she grabbed the neighbor out of the car. “What am I gonna do with you?” she asked herself. “How about a I dig a hole in the ground and then put you there”... “Please don’t!” her neighbor pleaded. She dug a ten foot deep hole in the ground with her finger and then put her in there. She tried to get out but couldn’t. “That takes care of that” said the giantess Livie. She picked up her older brother in between her toes and asked: “What should we do next?”