No good deed goes unpunished...

As Anna walked through the hallways she once again heard the murmur of conversation and the louder, clearer words of teachers lecturing. With her chances of exposure to others increased, she reached down and adjusted the belt-skirt so that it covered her once more. She found that by placing her hands on her hips and pinning the back of the material down with her thumbs she could walk without it rising. She felt kind of stupid walking with her hands planted on her hips but it was, she rationalised, better than the alternative.

Anna gave a jump of fright as somebody exited one of the rooms ahead of her. She quickly identified her as Miss Angelico, the Spanish teacher. In her mid-twenties, Miss Angelico was a tan-skinned Spanish immigrant with a mop of brown, curly black hair and thick, black-rimmed glasses. She had a round, friendly face that most people found attractive. She was dressed in a short miniskirt, and a white blouse that hugged her C-cup breasts quite tightly, revealing the outline of a white bra underneath the material. Rather unusually she was barefoot. Her only flaw, that Anna could see, was her height. At 5'1 she was dwarfed by most of her pupils. As she saw Anna approaching, her eyes widened.

"Que carajo?" she asked.

"I'm sorry?" Anna replied.

"What is with your outfit, miss?"

"The, uh, headmistress said it was okay."

Miss Angelico gave her a sidewards glance that seemed to say "I don't really believe you."

"I don't really believe you." Miss Angelico said out loud. "But I will take this up with her later. Please, come. I need your assistance."

Miss Angelico indicated that Anna should follow her into the classroom. Anna did so nervously, hands on her hips, fully expecting a classroom of students to be gawping at her. She gave a sigh of relief when she realised the room was empty.

"Please." Miss Angelico said. "Your assistance."

"What's the problem?" Anna asked.

"I want to reach the top shelf." Miss Angelico replied. "The books up there, they are Espanol Level 3. I need them for my class in la manana, but I, ah, I cannot reach."

Anna looked at the bookshelf indicated. Standing in front of it was the teacher's seat, which Anna quickly surmised had been used as a makeshift stepladder, and on either side of the chair were a pair of discarded high heels - presumably Miss Angelico's.

"I couldn't keep my balance with them on." the teacher explained. "And without them, I'm too short. Would you mind?"

Anna wanted to say "No". The belt-skirt rode up above her hips as soon as she raised her foot up onto the seat, giving the Spanish teacher a clear view of her bare butt cheek. It would have been sensible to say "I can't, not dressed like this." and walk out of the room. She bounced once on her other foot, testing her balance on the chair, causing the material to rise up further. "This is stupid" she told herself as she pushed herself upwards and brought both feet onto the impromptu ladder. She wobbled and grabbed the bookshelf for support. Bent over slightly she was well aware that her entire arse and probably her lips were now exposed to the teacher below. She stood up straighter, still leaning against the shelf, and grabbed the first book. As she passed it down to the waiting Miss Angelico she saw, out of the corner of her eye, a piece of cloth falling to the ground. She immediately assumed it was her own garment, and froze. But no. She could still feel her belt tight around her waist. She tried to find the material and saw something pink folded on the ground.

"Next book please." Miss Angelico said a little quickly, as though she was nervous.

Anna reached up to grab the next. Then the next. Then the next. One by one she passed the books down to the waiting teacher below. She was down to the last book when it happened.

"Can't... quite... reach..." Anna said as she stretched for it.

"Come on down then." the teacher offered. "We can move the chair and grab the last one."

"No. I think I can just about..."

Anna's fingers brushed the book and knocked it over, making it easier to grab. At that exact moment there was a 'pop' sound, and the pressure against her hips disappeared. The belt-skirt brushed down her leg. Unable to do anything about it, Anna retrieved the last book and held it against her pussy as she climbed down. Once she was on firm ground Miss Angelico snatched it up without warning and placed it with the others. Anna looked around anxiously, trying to find the material.

"It went under my desk." The teacher stated. "One moment - I can get it."

Miss Angelico got down onto her knees beside her desk and, raising her cute little posterior in the air, reached her hand underneath the desk and began rummaging. That thought gave Anna pause - when did she start thinking of women's bottoms as 'cute'? She found herself staring as the short material of the skirt slowly began to rise. Anna's face began to redden.

"Material." Anna thought to herself. Something had fallen with the first book. Tearing her gaze away from the teacher's behind, she turned to the general location where it had fallen. It took her a moment to find it. Crouching down, Anna picked it up - and was surprised to find herself holding a pair of pink women's panties. She mentally measured them and realised they would be too small for her...

Her gaze turned sharply towards Miss Angelico's backside, which was the perfect size for them. The teacher was having difficulty retrieving the belt-skirt and had her head pressed against the ground in her effort. The miniskirt crept slowly upwards. Anna held her breath as the bottom of Miss Angelico's buttcheeks came into view. She wriggled, trying to get a better reach. The skirt rose, revealing her pussy lips. Anna was surprised to find quite a bit of pubic hair down there; the teacher had a wild thatch of brown hair that was gradually coming on display. A little bit further and the skirt revealed the ass-crack.

"Entendido!" the teacher exclaimed, causing Anna to jump.

Miss Angelico got to her feet and quickly smoothed down her skirt. Blushing furiously, she turned to Anna with the black material held in her hand. Her face paled slightly when she saw Anna holding the panties.

"Want to swap?" Anna asked.

Wordlessly the two exchanged the panties for the skirt-belt, which Anna immediately re-tied around her waist. Miss Angelico bunched the panties up in her fist.

"This is... difficult." the teacher managed. "To have flashed a student is, ah... bad."

"What were they doing up there anyway?" Anna asked.

"Well, when I couldn't reach on my own I thought I needed something to hook the edges of the books. My underwear seemed perfect for the job."

"But you lost your grip?"

"I lost my grip, yes."

Seeing how distraught the teacher looked, Anna said "Look, Miss Angelico. Me and my friend... we've kind of been streaking the school today. Now that you know this, I promise that I won't tell anyone you flashed me if you don't tell anyone about the streak, okay?"

"Si." the teacher replied with a grateful sigh. "This sounds... agreeable."

It didn't matter to Anna, of course. Two teachers, two classrooms full of students, and the damned headmistress knew all about her naked escapades today. But it made Miss Angelico happier.

Bidding her farewell, Anna took to the hallways hoping to reach the bathroom before the final bell of the school day rang.