Sexual teasing

• Nobody can notice my erection unless I want them to.

Satisfied that his penis would be visible on the off-chance that somebody would want to sleep with him, Josh sat behind his desk and waited as the students trickled in. The room was laid out so that all of the available seats faced towards the front of the class which contained Josh, his desk, and a whiteboard. The desks were set on a series of raised platforms so that the heads of the students in the front row were level with the feet on the students on the next. Two sets of stairs climbed up either side of the platforms so that students could access each row with ease. There were only a dozen or so students in his class so they bunched up at the centre of the first two rows.

Except for Rachel.

The girl with the short brown hair and dark, caramel skin sat behind the other students, up on the third row. As always she was dressed in sneakers, jeans, and a plain t-shirt. Her outfit did nothing to accentuate her tiny A-cup breasts or slim hips. She had a pretty face with strong cheekbones and a wry smile, though she seldom showed it. For a large chunk of the semester she had been the only one sitting on that row. Just as Josh was about to announce the start of the lecture the other - most recent - occupant of the third row entered the room.

Becky.

She was the opposite of Rachel in many ways. White skinned with long blonde hair, she was always dressed provocatively to best show off her D-cup breasts and broad hips; usually a tank top or a boob tube with low-cut jeans that gave off a hint of a thong underneath. She wasn't dressed like that today, however. She wasn't dressed at all, in fact. Not even footwear. She stood in the doorway to the classroom soaking wet with trickles of water cascading down her bare breasts, dropping off her wide nipples. The rest of her skin - her stomach, her legs, her tight, hairless pussy and her large behind - was covered in beads of moisture. Josh found himself staring, open-mouthed, and the inner teacher couldn't stop him from saying:

"What is the meaning of this?" he demanded.

"The meaning of what, sir?" Becky replied, genuinely confused.

"You come into my class, completely..." he hesitated. Of course, nudity was permitted here. He couldn't demand to know why she was naked any more than he could ask the others why they were wearing clothes. "...wet?" he finished lamely.

"Oh, I was taking my morning shower when I completely lost track of the time!" she replied. "I ran to class as quickly as I could."

Josh swallowed. God, but he wished he'd seen that. What a sight it would have been. "That's... okay. That's fine. Please take your seat."

She turned to climb the stairs, giving Josh a lovely view of her glistening behind, but then she turned back. "Actually sir, I might have forgotten my laptop. And my notebook. And my pens. Do you, ah, have any spare paper that I could use?"

"I'm afraid I don't." Josh replied, terrified that his erection might genuinely tear his trousers. Why won't the girl just sit down? "Ah, Rachel, do you have...?"

He turned to look at Rachel in the back row. Her eyes were wide as saucers and glued firmly onto Becky's body.

"Rachel?" Josh called again. She jumped upon hearing her name.

"Y-yes sir?"

"Do you have some spare paper and a pen for Becky to borrow?"

"Y-yeah."

"Lovely!" Becky said cheerfully before bounding up the stairs. Rachel watched her make the ascent, presumably enjoying every bounce and jiggle along the way (though she'd never admit it). Once Becky had taken her seat and was furnished with the essentials, Josh began the lesson. Which is to say he bought himself some thinking time.

"Please turn to page one hundred and seven of your textbooks." he instructed the class. "Read until the end of the chapter and we will then discuss the theories represented there."

There was a unified 'schwiff' sound as the class turned the pages. Josh sat down to rest his weary erection. He half-lifted his own copy of the textbook and lowered his head, but his eyes were glued to Becky. She and Rachel hunched over a shared copy of the textbook - Becky having forgotten hers along with everything else, it seemed. He watched them for a few moments. Becky looked up at Josh and, thinking him focused on the book, clearly lost interest in reading it herself. Instead she used her close proximity to Rachel to lean forward and bring her breasts into the other girl's view. Becky gently began to massage her own left tit so that Rachel could see her doing it, distracting her from the book too. Josh smiled to himself.

The girl's relationship was an unusual one. The two had sat apart completely disinterested in each other for most of the semester. They were so different that Josh had naturally assumed they ran in different social circles... presuming Rachel had a social circle. One night, as Josh had been marking some papers in the deserted classroom, he'd heard women's voices outside. Keen for a distraction from the tedious work he'd made his way over to the door and... well... eavesdropped, to put it bluntly. And what he'd heard was Rachel - the lone wolf of his classroom, the girl who sat by nobody - nervously asking somebody if they wanted to go out on a date. It had been surprising, but not as surprising as the voice that answered her. It belonged to a girl. Not Becky, though. Josh didn't recognise the voice.

"I'm sorry," she'd said "But I'm not a lesbian."

"Oh! Oh god." Rachel had replied. "I didn't mean... I'm not... please don't tell anyone."

"I mean, I won't if you don't want me to, but there's nothing wrong with being gay you know."

"I'm not... it was a joke, alright? I was just joking. Just... please don't tell anyone."

And so Josh had acquired the knowledge that Rachel was attracted to other women but was clearly in the closet about the whole thing.

It was maybe a day or two afterwards that Becky had suddenly switched seats so that she was next to Rachel. He hadn't made the mental connection between the two incidents until he noticed that Becky started teasing the other girl. Sexually. When they were sharing a textbook - like they were now - Becky would seem to thrust her breasts out more than was required, although they'd been constrained by clothing in the days before he'd discovered the phone app. She would frequently drop her pens too, and Josh noticed that when she bent over to retrieve them that Rachel's eyes were always glued to the other girl's exposed thong. Once, when Rachel had called Josh up to her desk to ask him a question about their studies, Becky had leaned over to ask him a question of her own and he couldn't help but notice that she placed her hand on the other girl's thigh to keep her balance. Josh had put together two and two, but unfortunately his answer was five.

One day, when Becky was off ill, Josh had jokingly asked Rachel where her girlfriend was. He was the cool young teacher after all.

"She's not my girlfriend." Rachel had replied stiffly. "I'm not gay."

Which left their relationship as an unknown.

Back in the now, Josh cleared his throat. Just as he expected, Becky stopped rubbing her tit and looked every inch like a focused, sensible student reading her friend's textbook. Rachel was red in the face and, Josh could just about see, was rubbing at the crotch of her jeans with one hand.

"Everything okay up there, girls?" he called out.

"Fine!" squeaked Rachel. She quickly pulled her hand away but struck the table as she did so. The rest of the classroom turned to see what was happening.

"Sorry," Becky said, smiling. "I just dripped some water on her is all. Gave her a bit of a shock."

Josh pointed at the book again. "End of the chapter please, girls."

The class settled down to reading again, while Josh returned to pretending to read. Sure enough after a suitable amount of time had passed Becky looked down towards him again. Satisfied that he wasn't watching she raised one foot up onto Rachel's chair so that her legs were spread. She had Rachel's full attention as she licked her own finger, ran it down her chest, between her breasts, down past her stomach and began rubbing her own protruding clitoris. With her other hand she lifted one of her breasts up to her mouth and playfully licked her own nipple.

Rachel's hand returned to rubbing the crotch of her jeans.

At his desk, Josh was near to breaking point. This was too hot. He needed some relief. He stood up. "Right class. I'm just going to the bathroom. I trust you to act like mature, responsible adults while I'm away."

Most of the class murmured their agreement, although Rachel - sitting beside the now quietly studying Becky - shot him a pleading glance that he pretended not to see. Waddling with this erection, Josh exited the classroom. Once in the hallway he quickly pulled out his phone and typed in a new command.

• Nobody can see or hear me.

He slipped the phone back into his pocket and re-entered the room. The class looked up at the sound of the opening door, then immediately returned to their reading. Or, in Becky's case, standing over Rachel. Still, better not to assume the app was working.

"Okay everyone," he called out "Books down."

The class promptly ignored him. "Fuck you all!" he yelled, and began flipping the bird. Nobody looked up.

"Fuck yeah." he muttered, and he quickly ascended the stairs so that he was standing beside the two girls. By now Becky was sitting on Rachel's lap and was tracing her finger across her bare thigh.

"Please," Rachel whispered "Just sit down will you. I just want to study."

"We can read like this." Becky whispered back. She picked up the book and held it with one hand directly beneath her breasts so that they covered most of the text; the other hand she used to reach behind Rachel and support herself on the chair.

Beside them, completely unnoticed, Josh unzipped his trousers and eased his penis out into the open. He began to masturbate.

"I can't read that." Rachel complained.

"How about like this?"

Becky shifted herself around so that she sat on Rachel's knee with her back to her. She raised one of her feet onto the table so that her knee was up in the air, and held the book just above her crotch. She then began to slowly masturbate.

"It's too far away." Rachel whispered. "Please just sit back down."

"Of course." Becky replied.

She swung her leg off the table and back onto the floor, but in the process knocked over a pencil. Some of the class looked up at the noise to find Becky now standing.

"Sorry guys," she told them. "Clumsy me dropped a pencil!"

They looked away, disinterested, as Becky bent over to retrieve the pencil. Both Rachel and Josh watched transfixed at her bare behind and the lips of her pussy squeezed between her thighs. She took a lot longer than needed to pick it up, too; long enough that Josh finally reached climax and ejaculated on one of the empty seats. He made a mental note to clean it up as he zipped up his trousers. The Becky / Rachel show seemed to be over for now as Becky returned to her seat and began suggestively nibbling on the pencil eraser. Josh returned to the corridor, made sure he was presentable, and then deleted the previous instruction from the app.

Apart from the naked blonde in attendance the rest of the lesson passed uneventfully, and by the time Josh dismissed the students Becky had completely air-dried. Once the students had left Josh returned to the upper gallery and cleaned up his little spillage. He felt sooo much better with that out of his system.

Looking at his watch he realised he now had a free period. Time, he thought, to go do some marking with Miss McCarthy...