Jenner was confused, obviously. But he thought for a moment, then said: "Well, Maryon, it's not quite so simple as that, of course. And I doubt that Roger would quite go along with your Physics' theory. But, yes, there is something in what you say. People should be able to exchange things, and bargain for what they want without losing pride or getting into a fight over it."
"Right on!" said Maryon, taking a deep breath. It was now or never. Perhaps after all she could make use of her rather special background. She reached forward and took his left hand as it lay beside her and, as she spoke, placed it on the warmth of her round, pantyhosed knee. "Mister Jenner, I want to get better marks and I want to try some sex with an older man. You, I kinda reckon, wouldn't mind getting it in me, if you could get away with it, and you wouldn't really think it'd be cheating to give me the marks you think I deserve. What about an exchange? Is it a bargain?"
Her blue eyes flashed and sparkled as she spoke, and she fought hard to keep the color out of her cheeks. It was the first time in her life she'd been so outspoken, and really put it on the line, to herself or anyone. Jenner in his turn went pale and pink and pale again. He swallowed hard.
"You mean… you mean, Miss Swe… Maryon, that you want me to-to…" he broke off in confusion. On her knee his fingers tightened.
Maryon let herself smile intimately at him, comradely, with the suspicion of a wink. She remembered the tales of his wife that were told around the school… her dried-up sexual charge being devoted to good works and social responsibility. A childless couple, Maryon bet that it was mainly because of the woman's hang-ups. Bet also that the poor man had never had it but in the modern-conventional, strictly head-to-head, face-to-face, male-uppermost style. By the wrist she slid his hand over her knee and pushed it between her crossed lower thighs, trapping it. "You know what I mean," she said. "I'll trade my body – and eagerly, too, not like a ten-minute trickster – for your influence. Mark me higher, and do your best to get some of the other teachers to do the same, but not so's you'll screw things up, naturally. Here… I'll give you a quick sample and, whatever happens after, I'll expect at least a B on my next History paper. And don't worry about any thing, I've been on the Pill for months. See, how about this…?"
Maryon had already felt his hand growing hotter through the thin nylon and had observed, with secret amusement, how the front of his pants bulged where his gray suit jacket fell back from him. Moving herself a couple of inches forward and leaning at the same time, she made sure that his fingers were comfortably, comfortingly, snugged in the hot hidden haven of her crotch. With her own left hand she reached over the comer of the desk and spun his swivel chair a quarter to his left so that he directly faced her, then walked her slender fingers up his tight-clad gray thigh until she could flick the swelling growth at the base of his belly. She swiftly unzipped him, and, after a moment or two of struggling with the slit of his jockey shorts, managed to grip his prick and pull it out. She was inwardly delighted at its size and length. He was uncircumcised and his thin foreskin was red with a satin sheen. As she touched him there, appraisingly running a long-nailed finger down its underside and noting with approval its powerful jerk, she felt his fingers stir on her thigh, spreading to span the warm sector of nyloned flesh. His unaccustomed hard-on through his shorts made the rubbery pink-and-white sausage lean over toward the right, and when she grasped it firmly and set it straight, she felt him wince.
"Oh… that hurt you, didn't it?" she said in a soft and sympathetic voice. "Maryon'll fix that for you."
Before he could think to protest – her mind was set on overcoming him with surprise and speed so that it would later be too late to change his mind – she stood up, feeling with mounting excitement the jab of his unexpecting fingers as they were driven momentarily against her pliable young pubic hummock… slid his hand down between her close nylon thighs beneath the upridden skirt, then stepped over his sprawling legs and sat on his right knee, putting her left arm about his neck to hold herself in place. Putting his left hand again on her thigh she took hold of his prick with her right, then leaned in to kiss his astonished lips. At first he seemed to resist, but soon his right arm came about her waist and he responded, quickly opening his mouth as his nubile young instructress nimbly attacked his teeth with her tongue, demanding obvious entrance.
At the same time she ran her circled fingers down his broad length until they reached the cloth of his pants, then slid them in and underneath the material, forcing it back until she could grope through the slit of the shorts and, finally, grasp his warm and fleshy balls, using her slim wrist as a shoehorn to give him an easier purchase for his climbing cock's convenience. A groan went through him as she clutched his cocciferous cockles and gently squeezed, but he abandoned his mouth to her roving tongue and his left hand dragged higher beneath her skirt. She wriggled her butt provocatively on his leg, continuing her squeezing tactic until she felt he was near ready, then slid off and down to the floor between his legs. On this first occasion she wasn't too concerned about her own pleasuring – that could wait for all the other times she now knew were to come her way – but to give him something to do she took both his unresisting hands and, not without a lot of difficulty and squirming about, allowed him to slide them down underneath the tight neck of her sweater and so, beneath her bra, onto her breasts. It was not very comfortable and the blood mounted to her face as she half-strangled, but she didn't expect to be long in this position. Jenner's bent-forward attitude hindered her head movements, too, but she drew in a great breath and, without delay, put her mouth over the end of his prick.