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by Frost Author IconMail Icon
Rated: 18+ · Interactive · Fanfiction · #2197561

Size stories featuring the characters from Fire Emblem: Three Houses

This choice: Slow growth (several inches per week?)  •  Go Back...
Chapter #7

Goliath vs GigaDavid

    by: Unknown
Two days later, the 159cm (5'2.5") tall Caspar was sparring the huge 190cm (6'3") tall Raphael in the training room.
Despite their different houses and appearances, they shared a lot, like their love for physical training, and frequently did they routines together.

Although Caspar hadn't experimented any change due the spell, he felt strangely energetic since the dinner and couldn't stop working out, to the point Raphael had to ask him to stop.

"What? We've just started!"
"No, we've been sparring for 2 hours... uff!" The blond giant replied, panting and covered in sweat, whereas his tiny blue haired companion was perfectly fine.

While Raphael was picking up his weapons, a strange feeling overcame the shorty. It was like his body had taken a jump, but his feet didn't left the floor. His perspective seemed a little off... like it was higher?

"Weird... It must be fatigue. Raphael is right, I'm overdoing it."

He agreed to stop too and then the pair left the room together.

"You know... I really envy you, Raphael... You're huge!"

Chitchat.

"I know I'm big. Everyone knows that. What are you talking about?"
"I'm not very big, but I've always wanted to be. That's why I train so much. I've grown a bit in the last five years, but I'm still not even close to you. I just don't know how to bulk up."
"You're not so small." The friendly giant noted. His blue head, who previously was at the same height of his collar bone, was close to the other's square jaw.

============

Class time. Byleth was trying to teach his courses, but often he was interrupted by noises.

First it was Sylvain's knees suddently bumping against the bottom of the table. Fitting his legs under the table was becoming harder and harder as the class went on.

"Sorry, teach."

Byleth didn't say a thing and continued, although kept an eye on him and the other male students.

*riiiip*

Ashe's uniform teared from behind when he extended his arm to receive a pencil from Annette.

The former thief blushed a little, ashamed. A slight smile appeared in Byleth's face, disappearing when he resumed the class.

"...mn..."

Byleth eyes were drawn to a grumpy swordsman, whose face looked troubled and uncomfortable. Without interrupting his speech, the teacher kept watching Felix until he hit the table in a muscular spasm caused by an instantaneous growth spurt.

"...sorry."

Byleth couldn't calculate his height while he was sitting, he seemed a good head taller and his muscles had increased enough to be noticed under his uniform.

He heard a few ripping sounds before the period ended with diminishing intensity.

"Has the spell lost its effect? Are they reaching their maximum sizes?" The inexpressive man grew worried. His students seemed stronger, but not with the legendarily strength Sothis described.

"Teacher, I have a question..." Ashe approached to him. He hadn't changed much, maybe a bit taller and considerabily more muscular without reaching Felix's level.

Then he froze halfway, with an expression similar as one who is going to sneeze. Then it happened.
An explosive growth spurt make him rise 30cm (1') in addition to the 7cm (3") he had gained in his seat. And the previously slim boy's muscles grew out of porpotion,ripping every seam in his clothes, which fell to the ground as shreds.

The only cloth that remained in his place was his underwear because he hold the damaged cloth with his huge hands.

His freckled skin turned fire red and escaped through the door.

"Wait..."

Byleth heard screams and knew he had been seen by all the people outside the classroom. "At this hour there are a lot of deer and eagles outside."
The huge teen took refuge inside. The other students were surprisingly supportive and calming with him, despite some looked a bit unconfortable and others were peeping discreetly the almost nude boy.

"It's not your fault, it's the school's!" Sylvain exclaimed, patting on his broad back.
"...what?" Byleth thought scared his secret had been found out.
"...their uniforms are awful! They're ripping every time we breathe, and clearly they’re not as 'custom sized' as they advertise." The redhead showed them his ankles, exposed after his legs grew longer than his trousers.

"Are they really so oblivious?" The avatar wondered.
"The effects of the spell can't be easily appreciated by mortals, even the ones affected by them... most won't notice any change, and the ones who did will automatically accept it as normal."

Sothis spoke to him from her realm.

"Answering your previous doubt, the growth isn't going to stop any time soon. They're going to get stronger... MUCH stronger... before the spell stops."
"When will that happen? The stopping?"
"I... don't remember."

Next day, in the canteen...

"Now sit down and eat up! Eating's the best way to get bigger!" Raphael was doing his best to help his friend to be as big as him, despite that wasn't a pressing matter after the previous day's growth spurt.
"Let's do it! I'm gonna eat till I can't move!"

Caspar did indeed he ate and ate until the cookers refused to keep serving him. Raphael watched amazed how his piled dishes doubled his own.

"Wow, and I thought I was a big eater!"

Caspar ignored him as he felt the urgency of stretching his body... and his body did actually stretch taller during the stretching, his head rose slowly as his legs extended further under the table. *Pop* *Pop* The shoes bursted as his feet lengthened 12cm (5").

"Mmmm... just what I needed." Caspar felt amazing, and the ripped clothes felt less constrictive. "Hey, Raphael, let's train a little more!"
"Wait, now?"

But he was dragged by the growing teen, who was now a few centimeters shorter than him.

Hours later, Byleth was coming from a reunion when he met a curious pair... Raphael, who looked like shit after being beaten up by Caspar, who was being helping him to walk to the infirmary, holding him as he apologized nonstop.

"Forgive me, Raphael, I didn't want to hit him so hard!" He said with a trembling, guilty voice.

The blue haired boy was A HEAD AND A QUARTER TALLER than the blond one, and as muscular if not more. The sensation of approaching growth had reduced after that huge growth spurt... although it could and would come back later.

"I have to check the other houses too." Byleth said to himself, as much surprised as satisfied by the results.

The inexperienced teacher returned to his room and got another surprise... a pretty big boy was sleeping on his bed.

"Linhardt."
"Zzz"
"Wake up..."
"...5 minutes more, mom... zzz."
"Why aren't you in your bedroom?"
"...my bed is too small... yours is bigger... zz..."

That was privilege of the academy teachers. Byleth tried to move the mage, but he was heavier than he looked. He was taller too, as his feet were close to the end of Byleth big almost-double bed. He would never fit in a student's bed.

"Damn it, Linhardt."

At this point, Byleth had no more options than left him spend the night in his room. With the academy closed, he had little options: Sleeping with him or go to his empty room and risking be spotted by other students and have to answer very inconvenient questions...

"His face is peaceful, like an angel... a huge lazy angel."

Again, a smile was put on his face, although this time it lasted longer.

"You're not going to take advantage of a student, right?" Sothis' voice, always talking at the worst moment possible.
"Of course not! I'm just going to share my bed to sleep and nothing more. Good night!" He didn’t want to continue that conversation… because although Byleth would never do something like that, there was so much history between those two: in the previous timeline, a sweet story with a bitter end.

"Maybe, after the graduation, that story can have a happier ending..."
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