Explanation Part 1: Dvthea bumped Feryk's one sentence story event and I didn't notice the date of the original post but a story formed before I did.
Explanation Part 2: I dislike flash enough to manipulate them into a series... which feels less flashy

It is less than a 1000 words... definitely qualifies as flash

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Why not to tell her!by ElSol"My breasts are probably bigger than hers."
"No!" I said.
"I promise this is the last time," Susan whined.
"It was the last time with Michelle, Elizabeth, and a dozen other girls! I shouldn’t have told you about the Institute test!"
"I can't believe I was wrong all those times," she pouted. "It's so unfair!"
"Look at who you keep comparing yourself to," I said. "Which one is it this time?"
"Her," Susan said pointing.
"Jennifer Wright! Those breasts are legend!" I exclaimed.
"It could be a padded bra," Susan insisted.
"You have gym with her," I said. "I know you’ve peeked."
"Yeah," Susan capitulated. "But I would have to touch them to make sure they're real!"
"Sixteen year old girls don't have fake boobs," I protested.
"Shows what you know!" Susan said with all the superiority that a sixteen-year old female claims over a male her age.
"I'll let you touch them," Susan offered.
"Suse! I'm the Symbolic," I said exasperated. "I'm the reason that Jennifer is going to let us compare.”
"I meant mine," she whispered.
I stopped in the hallway and got bumped by someone behind me.
"Watch it, asshole!" the guy growled.
"Dave!" his friend said pulling at his arm. "That's the POS."
I had become very familiar with those words.
"Dude!" Dave said apologetically and brushing off where he bumped me. "I'm so sorry."
"It's okay," I replied.
"Are you sure?" he asked worried.
"Yeah, I'm fine," I said with a fake smile.
"This sucks!" I said when he walked away.
"A jock apologizes to you, and it sucks?" Susan asked.
"They know about the test," I said.
"Everybody knows about the test, Mig," Susan said. “One in five hundred thousand, dumbass!”
I stopped in front of my locker and input the combination.
"It sucks the way they look at me," I complained.
"You're too sensitive," she replied leaning against the locker next to mine.
"A few weeks ago, I was nobody,” I said bitterly. “Now, every guy wants to be my friend, and every girl looks at me like I'm the god-jock of the state. If I find out who let my results out, I'm going to kill them!"
"The Institute probably makes sure people find out," Susan said thoughtfully.
"Why would they do that?" I asked in shock.
"You're bound to do stuff," Susan said shrugging. "They have to prepare people for it."
"I wouldn't have done anything if someone didn’t ask me to," I said eyeing her.
She waved my words away dismissively and closed my locker door.
"You're EMC-POS," she said. "You're expected to do wickedly naughty things."
"Did you get into your mom's romance novels again?" I asked looking at her.
"The Institute gave me some reading material, asshole!" she said over her shoulder.
"Why did they do that?" I asked grabbing her arm and turning her around.
"They judged me to be your most likely experimental subject, so they told me what to expect," she said.
"I would never do anything to you!" I spat.
"Why not?" she asked pissed off. "I'm a girl! It's because of my breasts, isn't it? You like them as big as Jennifer's!"
Since I had never won an argument with Susan, I turned away and ended up face-to-face with Jennifer.
"You like my breasts?" she asked.
"Not me, her!" I denied pointing at Susan.
"You don't like my breasts!" Jennifer said disappointed.
"Hi, Jen!" Susan said smiling brightly. "I was just trying to talk Miguel into playing with your Symbols."
"Are you crazy?" I yelled.
"Cool!" Jennifer said staring at me.
"Fuck!" I breathed. "You’re all crazy!"
"Do you even know how to read, Mig?" Susan asked. "It's in the manuals that the Institute gave you."
I had read one of them, but righteously decided not to inform Susan of that.
The manual explained why a certain Symbol had come into focus when I looked at Jennifer and Susan. I turned away from them and walked into my next class.
"Are you going to do anything with my breasts?" Jennifer asked from the doorway.
Everyone in the room looked up with interest.
"No!" I bit out.
"Do you need time, Miguel?" Miss Johnson asked.
"No!" I repeated.
"The EMC Amendment requires accommodation for Positives," she reminded me. "If you need time with Jennifer and Susan, the class can wait. The propagation of the human race is more important after all."
"Are the Sex Symbols really broken, Mig?" Susan asked suddenly.
"Not yours," I answered without thinking.
"Why not Susan's?" Jennifer asked from behind her.
The manual explained it.
"Every Symbolic subconsciously fixes the Sex Symbol of his..." I looked at Susan before continuing. "His Susan! You see, I can too read!"
"So that's why I wanted to look at those girls' tits!" Susan said laughing.
Jennifer and Susan's Symbols floated into my vision again. I saw them as Kanji characters; Susan's was complete and glowed slightly, while Jennifer's was missing a connecting slash.
I couldn't help it!
I reached out and put a pair of fingers on Susan's.
"Ohhh!!!" she gasped getting up on her toes. Those perfect breasts pushed towards me with their cherry drop nipples pressing against her shirt.
I reached out with my other hand and drew the slash to complete Jennifer. Her knees buckled, and an addicting feminine sound of pleasure escaped her lips.
I pressed against their symbols. Susan collapsed onto Jennifer as they experienced something only an EMC-POS could make possible anymore.
Orgasm.
I let their symbols go and turned around.
"Oh shit!" I whispered.
The hand gesture was unnecessary; I had completed every Sex Symbol in the room. Unlike Susan, the effect was only temporary, but the manual had been clear about what would happen in that time.
"Hey!" Susan said around Jennifer's lips. "My breasts are bigger than that girl’s... and that one too!"
The End
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Stay tuned for the final two installments of 'The Institute Flash Stories"
ElSol