"Oww!" That woke her up. Rubbing her forehead, she opened her eyes a little wider, and saw that the header of the door was now right before her eyes. That's strange, she thought as she looked at the floor. Wait a minute: When did the floor become so far away from her? She quickly looked at herself. Her clothes were now at least two sizes too small, contributing to the "shrink-wrap" effect. Lowering her head, she got into the bathroom. In the mirror, she could no longer see her whole face. The normally stoic girl couldn't take it anymore.
"AAAAAAAAHHHHHHHHHH!!!!!!!!!"
After that good scream, she realised the situation: Somehow, over the night, she had grown taller by almost a foot. To add to that, every part of her body had gotten bigger in proportion. Well, at least her bust size wouldn't be noticed. She wished that she could say the same for the other aspects. All right, calm down. Let's get to school first, thought the girl as she washed up...
I guess I know how the taller guys felt when they visited me, thought the girl, as she changed into her father's business suit, which had an odd musky odour from years of non-usage. It would have to do; her father's clothes were the only ones which remotedly fitted her in her present state. Wearing Ryoji's leather shoes (after giving them a quick polish), Haruhi stepped out of her apartment, but not before knocking her forehead into the header...
The first thing Haruhi noticed about tall people (now that she's one of them) was that they almost always had to bend down to avoid knocking into low-lying objects. It's so troublesome, observed the girl. However, on the subway, she realised that ladies in their 20s and 30s were now staring at her with infatuated eyes, on top of the usual crowd of teenagers...
At Ouran, things got a little more interesting. Those who saw her stopped and stared for a while, trying to figure out whether "he" was the Fujioka Haruhi whom they knew. The face's the same, but... Haruhi decided not to stop until she had reached 1-A. It's the same situation in her class. Kurakano Momoka, the vice-president of the class (and Haruhi's regular client), was sure that it was Haruhi before them. Souga Kazukiyo (the president) coughed before speaking.
"Excuse me, are you Fujioka Haruhi-kun?" Kazukiyo looked up at the tall "boy" who was heading towards Haruhi's seat.
"IIn-chyo, of course it's me..." Before she could complete her sentence, the fangirls began crowding around her and bombarded her with questions.
"Haruhi-kun, you're so much more handsome (some even said "prettier"; don't ask) now?"
"Haruhi-kun, what happened?"
"Did you discover some way of growing taller in an instant?"
"..." As Haruhi looked down at the girls surrounding her, she could somehow understand why five guys of the Host Club were so "hot". Presently, two voices could be heard behind her. It came from the corridor.
"It's kind of lively today, isn't it, Kaoru?"
"You got that one right, Hikaru."
"Hikaru, Kaoru," cried Haruhi as she turned around. The twins looked at her, and their jaws dropped onto the floor. Pushing their way past the girls, the Hitachiin twins stood beside Haruhi.
"Haruhi, since when did you become so tall," asked Hikaru. The girl was now just slightly taller than they were. (5'11'' or 180cm for Haruhi vs 5'10'' or 178cm for the twins)
"Since this morning. I had no idea how it happened." Kaoru caught a whiff of the odour coming from the girl's clothes, and covered his nose.
"Haruhi, your clothes..."
"Ah, gomen. They were my father's. They hadn't been used for quite some time." The twins looked at each other.
"We need another set of uniform," chanted the twins in unison. With the fangirls' squeals in the background, Haruhi sighed. This was going to be a long day...
After class, at the Third Music Room...
The twins waited while Haruhi changed into her new uniform. For once, they persuaded their classmate to follow them to the music room after classes had ended. (In the past, all they needed to do was to drag her along.) The curtains parted and Haruhi stepped out of the changing room.
"So, how do I look?"
"Oh my god," was all what the twins could manage at this point. In the Ouran uniform, Haruhi's new physique stood out (no pun intended). She now looked more like a boy, and her bishounen looks were on par with even Tamaki himself. As the twins stared at her with tears of joy in their eyes, the door to the music room opened. It was the rest of the Club. Four pairs of eyes rested on Haruhi; four different reactions were observed.
1) Tamaki turned into stone.
2) Kyouya pushed his spectacles upwards.
3) Hani gazed in wonder.
4) Mori had a bemused look on him.
Hani bounced as he walked and jumped into the girl's hands.
"Haru-chan, you've grown taller!" With the petite senior in her grasp, Haruhi felt like a female version of Mori-senpai (which wasn't far off the mark either). The giant looked down at the girl, who did not have to lift her head that much to return his gaze.
"What happened," asked Mori softly, with a slight smile on his lips. Haruhi shrugged her shoulders. She didn't even know where to start...
Afterthoughts
Please RnR!