St. Mary's Schoolgirl Sluts - a series by Celtic Heart.

Chapter 15 - Advanced Biology

Shona was bored and frustrated. It had been a long, gruelling week and she couldn't wait for the weekend when she'd finally be able to spend some time with Craig. She walked to her last-period class for the day, biology with Mr. Lewis, thinking about the fun that she was anticipating that evening after school with her friends, Jane and Sandra.

Shona wore a white long-sleeved blouse with her blue school blazer over the top of it. The blouse was a tight fit that hugged her large breasts. On her left breast was a small emblem showing a falcon, with the white letters "SMC" below it. her skirt was blue-and-white plaid with knife pleats all the way around. It was made of a flimsy, light fabric that flipped around easily when she moved. It was noticeably shorter than the regulation length. Barely hidden under the skirt's hem, a pair of white, regulation panties gripped her firm, shapely rear end. A pair of blue and white striped cotton knee socks and sensible black shoes rounded out her uniform.

Shona had chosen to wear her long brown hair loose. With just the slightest hint of wave to it, it shimmered in the light of the corridor and bounced against the back of her blazer as she walked. A simple hair band helped hold the hair back in place. She had her fringe combed down straight across her forehead.

She spotted Mr. Lewis standing outside the door, observing the students as they entered the classroom for that afternoon's lesson. Shona thought that he was a very attractive man. He was in his mid-thirties, about six feet four with a rugby player's physique, with thick brown hair and a well-trimmed moustache. Even though he had only been taking the class for a few weeks, Shona knew he was attracted to her. She had already flirted outrageously with him on a number of occasions and had fantasised about him several times in class.

Shona could see that he was watching her as she came closer. Knowing that he was watching her, she decided to give Mr. Lewis a little show. A water fountain was almost directly opposite the classroom door where he stood, and she suddenly decided to get a few sips of water. She waltzed over to the water fountain, her lightweight, tiny pleated skirt bouncing high on her bum. Shona bent over to drink, and as she did so, Mr. Lewis gawked as her skirt pulled up even higher to reveal a little bit of her bum and her tight white knickers.

Mr. Lewis felt an immediate bulge begin to grow in his trousers as he took in the picture of the girl before him: the tight-fitting blue blazer outlining her tall and incredibly shapely figure, the blue-and-white plaid skirt ending in rippling pleats only slightly above the crotch of her white knickers, long thin tanned thighs accentuated by her blue and white knee socks.

Shona took a few sips of water, then pretended to drink more as she stayed in that position for several more seconds, hoping that Mr. Lewis was enjoying her display. She straightened up again and turned around to walk into the classroom, smiling as she made her way past her teacher. A quick glance in the appropriate direction confirmed to Shona that he had definitely noticed her. She was instantly proud of her little tease act. She smiled at him again with her sweet, little-girl dimples and he quickly returned the smile.

Shona took her second row seat, and the class started. As he lectured, Shona noticed that Mr. Lewis was definitely making eye contact with her and looking over her whole body. She turned and looked at across the room at Sandra who smiled back and winked at her.

Shona tried not to smile as she thought about the power that her body had over men. She loved to wear her modified uniform and other short skirts, because she could feel the way that men's eyes stared at her, almost seeming to penetrate her with their gaze, and it made her feel good.

As Mr. Lewis continued his lecture, Shona thought about the way that she sat, with her legs together, just the way her mother taught her. She decided that wasn't going to be too much fun for Mr. Lewis. She already had a pretty good idea that her teacher fancied her. If she gave him a show in class, she knew that he would enjoy it. There were only five minutes left before the bell to end the period and the school day.

Shona slowly began to spread her knees as she sat in her chair. Soon they were about eighteen inches apart and she knew that she was giving him a great view of her knicker encased crotch. She felt a familiar dampness down there and wondered if it showed.

Mr. Lewis was now clearly distracted. Shona sucked on the tip of her pencil whenever she caught his gaze, occasionally running her tongue along its length. Somehow he managed to fumble his way through the last few minutes of his lecture until the bell mercifully rang.

"Shona Fraser, I'd like to see you for a minute," he said, as the students gathered their books and began to leave the room. Shona took her time getting her things together. Was she in trouble? Or was Mr. Lewis wanting to get a few minutes alone with her? Sandra flashed her a knowing smile and winked as she passed. After the last students left the room, Shona stood up and approached Mr. Lewis. "Yes, Mr. Lewis?" she presented herself, somewhat nervously.

"Shona, I need to talk to you for a few minutes," Mr. Lewis said as he sat in his chair. "Have a seat," he told her. Shona boldly sat on the corner of his desk. He didn't seem to object, but looked a little surprised.

"Did you realise how you were sitting in class?" he asked.

"Of course," she answered. "I thought you might like that."

"I did," Mr. Lewis confessed. "But it really distracts me from teaching. Besides, you're much too young for me to be feeling this way about."

"Feeling what way?" Shona asked with a masterful display of feigned innocence.

Her teacher paused, not knowing how to say what he wanted to say. "Let's just say that when you act like that, it makes me want to do things that I shouldn't do."

"Oh?" replied Shona with a wicked glint in her eye, "Like what exactly?"

Mr. Reid looked slightly flustered. "I don't think I really need to spell it out, do I?" he asked.

"Why, Mr. Lewis," exclaimed Shona, her voice filled with playful indignation, "You don't mean you want to have sex with me do you?" she asked coyly.

"You could say that," he said. "I don't have to tell you how much trouble that could get us both into."

"Who's going to tell?" asked Shona. She curled a leg out across the desk, pulling her skirt up tight and showing her crotch again to Mr. Lewis. Feeling daring, she reached out to stroke the growing bulge in his trousers.

"Oh, Shona..." he murmured. "I want you badly."

"I want you too, Mr. Lewis," she answered, smiling and looking into his eyes.

"If you want to lock the classroom door, I won't say anything," he told her. Shona quickly got up and walked to the door, closed it and locked it behind her after making sure that nobody was watching. Then she returned to Mr. Lewis' desk.

Her teacher stood up from his chair, and Shona's sparkling green eyes immediately locked on an enormous hard on protruding from his trousers. "Yes, Shona," he said, catching her appreciative gaze, "that's from you," he told her. Shona smiled, unleashing her dimples on him. "You're so fucking sexy, Shona," he said as he took her into his arms and kissed her passionately.

Mr. Lewis put one hand around Shona's waist, and placed his other hand on the back of one of her thighs, just below the hem of her pleated skirt. He slowly ran it up under her skirt and grabbed her firm arse. "I want to eat your pussy," he said hoarsely.

"Be my guest, Mr. Lewis" she responded.

He reached under her skirt with both hands, grabbing the waistband of her knickers and pulled them down along Shona's long, shapely legs. They dropped to the floor. Shona stepped out of them.

Mr. Lewis lowered Shona onto his desk. She put her feet up on the edge of the desk and spread her legs far apart as he flipped her tiny skirt up over her waist. He had to admit that she looked fantastic, lying there in her uniform with her neatly trimmed snatch opened up wide for him.

Shona closed her eyes then suddenly felt something warm and moist caressing her tender clit. She sighed deeply as her teacher stroked his tongue slowly along her slit. "Oh, Mr. Lewis...That feels wonderful..." she moaned softly.

He licked her slowly for a few minutes then, increasing the pace of his licks, began to apply more direct pressure on her sensitive organ. Shona could feel the familiar warm feeling building within her again, the same warmth that she always felt when someone ate her pussy. "Oh, Mr. Lewis, that feels sooooo good!" she moaned as the pressure began to mount inside her. Mr. Lewis' tongue was gentle, almost like another woman's. She grabbed her knees and pulled them up tightly against her as she grimaced with the incredible intensity of her nearing climax, feeling the first rippling contractions pulse through her pussy and womb. "Oh Mr. Lewis!" she cried, " I'm going to cum... Oh... Oh... I'm going to cuuuummmmmmm!!"

Shona groaned in ecstasy as she became overwhelmed by the sensations. Her legs quivered slightly with the muscular release of tension. Her juices flowed freely over her teacher's face.

"Thank you, Mr. Lewis," she said as she slowly regained control of her body. "That was wonderful!"

"I'm glad you enjoyed it, Shona," said her teacher, "Would you like me fuck you now?" he asked.

"Would I?" asked Shona incredulously, "You bet I would!"

Mr. Lewis quickly pulled off his trousers and pants as he gazed down at his student, her body still trembling in the afterglow of her climax. Her blue blazer, the tight white blouse underneath, the flimsy blue-and-white plaid pleated skirt now piled up over her waist, and the blue and white cotton knee socks... there wasn't a man alive who wouldn't have wanted to fuck Shona at that very moment, he thought. His cock was rock hard, more than ready to give her a good, hard fuck. He pulled Shona towards him, positioning her at the edge of the table so he could stand and fuck her where she lay.

Shona watched with excitement as he nestled the tip of his prick against her hot, eager pussy and rubbed it across the opening several times to get it nice and wet. "Come on, Mr. Lewis. Fuck me!" she demanded.

Suddenly, she felt him enter her. Slowly, he drove his cock into her. Mr. Lewis knew of Shona's reputation and he was amazed at how incredibly tight her cunt felt around his shaft. He knew he was going to enjoy this.

Mr. Lewis plunged his cock in and out of her slowly, pushing deeper and deeper with every powerful thrust.

"Ooohhh... Mmmmm..." Shona moaned. She felt wonderful. She tingled with the sensation of her teacher's stiff prick filling her hot, wet cunt.

With her feet on his desk and her knees up, Mr. Lewis grabbed Shona's thighs and used them for leverage as he pumped his dick deep into her cunt. Loud slushy sounds emanated from the loins of the two lovers as they fucked, a hard, satisfying fuck.

"Oh yesssss! Fuck me, Mr. Lewis!" Shona urged, reaching behind him and digging her nails into the cheeks of his arse. "Fuck me... Fuck me hard!"

The excitement level quickly built within him as he screwed his sexy student. He knew he couldn't take it too much longer with her incredibly tight pussy gripping his cock deep inside her. "You like this, don't you, you little prick-teaser?" he asked.

"Fuck yes! exclaimed Shona.

"You're so fucking hot," he gasped." I've always liked fucking my students, especially in their uniforms."

"You've fucked students before?" Shona asked.

"You bet!" he replied. "Why should that matter? You've fucked other teachers."

Shona smiled. "That's true," she said as she looked up at her teacher, hammering away at her with steady thrusts.

"Oh, Shona..." he moaned. "Your pussy is so tight, I can't take much more of this. Can I come in your pussy?" he asked.

"You can squirt it wherever you want, Mr. Lewis," Shona said, "I'll even let you cum in my mouth, if you want."

Mr. Lewis hesitated. "No," he said finally, "I want to do it inside you, you little schoolgirl whore," he told her.

"Oh well," sighed Shona, "Maybe next time. I might even let you fuck my arse if you want."

"Oh fuck yes," he said hoarsely, "I'd love to do that."

"Well, why don't you?" she asked.

Mr. Lewis pulled his cock from her pussy. "All right then," he said, "turn round!"

Smiling, Shona slid off his desk, turned round and leaned forward, gripping the edge of the desk for support. Mr. Lewis gripped her hips. She felt the tip of his cock press against her other opening. "Mmmmm, yesssss!" she sighed as, inch by inch, he sank his cock into her back passage.

He began to thrust, harder and faster with every stoke. His balls slapped against her enflamed labia. She reached down, between her legs, to stroke her clit as his cock ploughed in and out of her arsehole. "Oh yessssss!" she cried, "Fuck me! Fuck my arse!"

Mr. Lewis stabbed his cock in and out of Shona's tight, rear hole, the pressure building rapidly in his groin. Shona's clit throbbed in response to her touch. "Oh yesss... Oh fuck.... Ooooooohhhhh, mmmm..." she cried as her orgasm surged through her.

Mr. Lewis felt himself approaching bursting point as Shona's body writhed on his cock. He threw his head back as he shoved his dick into her with one more powerful thrust. His cock erupted "Aaahhhhh!!!" he groaned as he shot his first jet of hot, sticky cum into his student's bowels.

Shona could feel his cock pulsate within her as it filled her arse with jet after jet of thick, white cum. Her teacher continued sawing his dick in and out, filling her with his fluid.

Finally, Mr. Lewis pulled out. Shona could feel his cum begin to leak out and trickle down the inside of her thighs. She bent over to pick up her knickers where they lay, discarded on the classroom floor, giving her teacher a last glimpse of her recently fucked holes. As she pulled her knickers into place, Shona smiled and closed her eyes, enjoying the last few seconds of the afterglow of her climax.

Mr. Lewis looked at her. "I don't suppose you'd consider using your mouth to clean me up?" he asked.

Shona laughed. "After where it's just been, forget it!" she said. "You'll just have to take me up on my offer to let you cum in my mouth some time," she added, grinning mischievously and licking her lips.

"It's a deal," replied Mr. Lewis as he pulled on his pants and trousers.

"I've got to go," said Shona as she turned and made her way to the door. "Thank you," she said, warmly, "I really needed that." Shona blew her teacher a kiss and walked out into the deserted corridor.

Once outside, Shona made her way quickly behind the nearest building and lit up a cigarette. She sighed, a long satisfied sigh, expelling the smoke from between her lips and feeling her teacher's cum soak into the crotch of her knickers. She was looking forward to going into town that evening with Jane and Sandra and to spending time with Craig over Saturday and Sunday. The pressures of the previous week were already forgotten. Her weekend had got off to the perfect start.