Makoto decided to take some time with the heiress of Okumura foods. They were talking about things that had happened recently when the topic was brought up to the transformations the girls went through a week prior. “I will admit, it was fun to see my body like that. I do wonder what else they could do.” Makoto said, taking a sip of her tea.



“Well Makoto, why don’t we find out?” Haru said, holding up two jet black vials.



Makoto looked at the vial, intrigued about what they could change her into. “What are they?” She asked with clear interest in her voice.



“It turns us into bombs.” Haru said nonchalantly.



Makoto nearly spat out her tea. “We’re going to explode!?!” She asked.



“No, we won’t die and our bodies won’t be in pieces. That much I do know. When I asked the clerk about it, he explained that is was an experience to go into blindly. He also did mention that we might not want to wear clothes while we do this.” Haru explained.



Makoto settled down after hearing this. “Though… naked. Are you sure he actually meant it?” She asked.



“I was skeptical so I ask one of the maids to pull out my old clothes. If they get ruined, nothing is lost.” Haru said, standing up. The two girls went into a dance room that Haru had used when she was in ballet. “We can watch our change from in here.” She said, uncapping both serums and handing one to Makoto. After changing into smaller clothes, the two girls clinked their vials together and drank. When both had finished drinking,Makoto noticed a jet black splotch on Haru’s lip while Haru noticed Makoto’s eyes turning bright yellow. The color soon consumed Haru’s body and her eyes started turning yellow while Makoto had the opposite effect.



Both girls stood there with jet black skin and yellow eyes, a sheen over their skin when the felt something growing out from their back. They both turned around to watch in the mirror as a fuse grew out of their body like a tail, completing their change into human bombs. Both girls stared at each other. “I must say, this is a cute look.” Haru said looking herself over.



Makoto took notice of her fuse and pulled on it, getting longer as she pulled. “It looks like we can set our fuse for as long as we want.” Makoto said, noticing that Haru had walked over to a nearby table with candles on them. She began to hold up a lighter and bring it close to her fuse. “Haru! You could blow up!” Makoto shouted.



“Isn’t that the point of why we did this?” Haru asked, as she lit her fuse. As soon her fuse was lit, this feeling started to well up inside her. Suddenly, the t shirt she was wearing felt tight. It had gotten too small for her but it seemed even tighter than when she put it on a couple seconds ago. Then she felt her skirt rise up a bit. She craned her head to see that her butt was a little bigger than before. That feeling inside her got bigger as her fuse was 25% gone. Her shirt got tighter again. Haru looked down to see her bust was much bigger.



Makoto watched as her friend’s body kept expanding, she finally got why they were bombs. They were going to blow up.



Haru’s body kept growing, her clothes starting to rip as they could barely contain her body anymore. With a deafening rip, Haru was left in the nude with her breasts and ass bigger than her head. Her fuse was very short now, only a quarter of it remained. The feeling inside her was unbearable, her stomach began to rise as Haru’s body got rounder and rounder. Soon, Haru’s body was made up of two large breasts and a large ass and stomach when the fuse completely burned away. Her whole body expanded out a bit father in a split second and giving out sparks, her body then returning to normal with a fuse growing back out.



Makoto laughed as Haru got back up and dusted herself off. “That looked like quite an experience Haru, but I don’t think I’ll be lighting my fuse anytime soon.” She said before hearing the sound of a burning fuse. She looked at the floor where long fuse laid and saw the tip of it on fire. A feeling filed Makoto, her stomach slowly staring to rise. “Haru! You’re explosion lit me! Put it out!” She said trying to grab the shortening fuse, her whole body expanding slowly.



Haru walked over and picked up the fuse, shortened her own fuse until it was as short as her finger. She took Makoto’s lit fuse and lit her own. She quickly wobbled away as her fuse got smaller and smaller while her body got bigger and bigger. Soon, the fuse disappeared and she blew up again. “So it seems the shorter the fuse, the faster you blow up and explode.” Haru said with a smile.



Makoto, who had sat down at this point said “That doesn’t help me Haru! She looked like she was five months pregnant, her arms and legs getting chunkier with each passing second. She started rising up as that explosive feeling filled in her butt. As her seat got softer, her whole body began to round out. Her body was forced into an X position as the fuse got shorter and she got rounder. In the end, she looked like a character in a movie about a chocolate factory she saw once before she exploded and returned to normal.



“Well, what did you think?” Haru asked, looking over the slumped form of Makoto. She measured Makoto’s new fuse and fixed her own to match it.



“It certainly was an… experience.” Makoto said standing up. She turned to face Haru who suddenly hugged her. “Haru! What are you doing!?” Makoto asked, a small red blush on her shiny cheeks.



“Lighting our fuses so we can blow up in each other’s arms.” She said nonchalantly, the sound of two burning fuses following. Makoto let out a small eep as Haru pressed closer, their rising bust starting to try and push them apart. Makoto wrapped her arms around Haru, the two being pushed further and further by their breasts and their now growing stomachs. The two got farther and farther apart until the exploded, the two girls laughing as they lay on the floor.