Who's the tallest, bustiest girl?

(Originally posted by Anonymous)

Katie decided it would be fun to have a 'size' contest with her friends. They would find out which one of them was the tallest, and which had the biggest breasts. And then Katie would use her powers to make things... interesting.

She quickly called her friends, and told them to come to the park for some fun. The friends she called were Riley, Zoe, Heather, and Matt.

Riley had black hair that came down to her hips. She was only 5'5", but she had a large bust. Her breasts were a large C-Cup, and Katie figured that, given a few weeks, Riley would be classified as a D-Cup. She was fairly fit, too.

Zoe stood taller than Matt at 6' even. She looked more like a fitness model, since she was very fit, and only had B-Cup breasts that were smaller than Katie's. Zoe also had red hair that came down to her breasts.

Heather was 5'10". Her chest attracted a lot of attention, being a D-Cup. She was fairly average when it came to fitness, and she also had brown hair.

In an instant, Katie arrived at the park right before everyone else did. Soon Matt, Zoe, Heather, and finally Riley arrived.

"Hey, guys. How would you like to do a size contest, where we see who's the tallest, and who has the biggest boobs? Matt can be our judge." Katie said.

Everyone nodded in agreement that it sounded like fun. Katie then told them to follow her. The five of them went and walked over to a nearby warehouse, which was... strangely empty. The five went in, and Matt took his place.

"All right, girls," said Katie, "take off your shirts and pants. We want to be sure we're seeing the exact size of your breasts!"

With that, Katie took off her shirt and pants, leaving her in a pink bra and panties. Seeing that Katie did that, the other girls followed suit. Zoe had a white sports bra and panties, and Heather had a blue bra that looked a little small on her breasts. Riley took off her shirt and pants, leaving her in a black lacy bra and panties. Her bra looked like it was having a little trouble containing her breasts.

"Just so you know, I'm wearing a large C-Cup bra!" Riley said.

The other girls wondered why she brought that up.

"Alright, Matt! Tell us who is the tallest and bustiest girl!" Katie said.

Normally, Matt would be very flustered under these conditions, but Katie's power held back his shyness for now.

"Alright, let's see... from shortest to tallest, it's Riley, Katie, Heather, Zoe, and from smallest to largest breast size, Zoe, Katie, Riley, Heather." Matt said.

But then Katie decided to use her powers. She reversed time until just after Riley mentioned her bra size, and then something strange happened.

Matt wasn't sure what was going on, but Riley didn't seem quite as short compared to the other girls as when they started.

Then, it became apparent what was going on. Riley was growing! Slowly but surely, she got taller and taller. Soon she was only an inch shorter than Katie, and then suddenly they were the same height, and then Riley surpassed Katie. She then reached Heather's height, and by this time, her breasts had started to grow, too. Her bra started to only cover the midsection of her boobs, the undersides and tops both being visible. Soon she was taller than Heather, and quickly reaching Zoe's height. Soon she was taller than Zoe, but she didn't stop there. Her nipples tented her bra, since her bra was losing the ability to keep her assets under control. And Riley still grew. Her panties started to rip down the middle, exposing part of her privates, and a few strands on her bra snapped. Soon Zoe was having trouble looking at Riley. Zoe had never had to look up this much at someone in her whole life. And just before her clothes ripped off, she stopped growing, a full foot taller than before, at 6'5". Her panties now looked like a thong, and her bra was barely able to contain her nipples, just about to break.

The other two girls and Matt were shocked, but then the very fabric of reality was changed. Now no one looked shocked at Riley's size; reality had been changed so that she had been like this for a while.

"Hey, Riley! Why did you choose to wear a large C-Cup bra? That thing barely fits you! And those panties look like they were meant for someone a whole foot shorter than you!" Heather said.

"Well, I just thought I might as well show off how much I've grown these past few months! Although, given the rate I'm growing at, these probably won't last overnight." Riley said, just as another strand on her bra snapped.

"I can't believe that the youngest one here is the biggest one!" Zoe said.

Katie noticed that she was a little taller now as well, and her bra felt a little tighter than usual. Something about the reality change must have affected her, too.