The Invention - Cover

The Invention

Copyright© 1999 by Dark Paladin

Chapter 4

Incest Sex Story: Chapter 4 - A young man invents a machine that when women are exposed to it will turn into sex machines.

Caution: This Incest Sex Story contains strong sexual content, including mt/ft   mt/Fa   ft/ft   Consensual   NonConsensual   Mind Control   Incest   Mother   Son   Brother   Sister   MaleDom   Oral Sex  

Sammy was still working hard on her brother's cock, the head now fully inside her mouth, touching her cheek as she swirled her tongue around and around, her fingers rubbing the cloth of her skirt against her pussy. He reached behind her and lowered the plastic zipper of her cheerleading uniform until he had uncovered her back all the way down to her waist. He pushed the top down over her shoulders, exposing a tan satiny bra. He kept working the material down, realizing she was helping him with her other hand, his cock held in her mouth only by suction as she swirled her tongue around the tip. He fumbled with the catch of the slippery bra material for a few seconds until it popped open, the flimsy garment coming free in his hands. He tossed it onto her gym bag, pushing her shoulders back against the couch and pulling his cock out of her mouth. Sammy protested, trying to get his cock back in her mouth, but Sandy took her hands away, saying she would have it inside her again soon enough.

His sister's magnificent tits stood out firm, the nipples fully erect again, pink and stiff. He let his cock slide down her neck and down her breastbone until it rested between the two mounds of flesh. He took one of her hands firmly, putting it on the side of her breast, then the other, pulling it away from the spot where it was rubbing her crotch and placing it on her other ripe tit. He slowly pushed her hands together until his cock was buried in the soft pliable tit flesh, the red tip poking up between them. He knew that half the guys in school had fantasized tit-fucking, and probably with his well-endowed sister. But none of them had succeeded!

Sammy quickly got the idea and began rubbing his prick between her tits, sliding her nipples against his engorged organ with her fingers, murmuring in pleasure. He stood over her a while, enjoying the sensation of smooth tit flesh against his cock. Then she pulled his cock away, looking at it. She smiled at him and slowly lowered her mouth onto it, saying that she didn't mind anymore. Her hands again cupped his swollen balls as she sucked in her cheeks, pulling his organ back into her mouth. He let her slide it in, relishing the sensation of her soft lips engulfing him.

He put his hands on her shoulders, turning her body around. As she turned, his cock popped out of her mouth, bobbing against her hair. Sammy knelt over the couch and he lifted his sister's short blue skirt, her pretty rounded ass presented to his stiff organ. This was just what he had done with Mary Martin, just with a different ass. His sister's was plumper and felt softer against his cock. He slid his hands over her smooth buttocks, reaching between her legs and spread them apart. She quickly got the idea, leaning further forward and arranging herself so that her pussy was open to him.

"Oh yes! Sandy! Put it in me again! Oh please, I'm so hot!"

He knelt behind her and slid his cock under her buttocks, brushing against the soft flesh of her pussy, feeling the soft hairs rubbing against him. Her hands flew between her legs, spreading the pussy lips and he pressed upward with his cock until he could feel the hot hole of her cunt, wet and slippery. His cock stopped just at the entrance.

"Do you want me to put it in?" he asked, rubbing her nipples between his fingers.

"YES!" she almost shouted. "Stop teasing me! Just put it in!"

"Is this what you want?" he teased, slowly entering her cunt from behind.

"Oh Yes!" she said again. "Make me cum again! Oh please make me CUMMMM!"

Her voice rose in pitch as he slowly penetrated her tight channel. He could feel the heat inside her and he pushed forward with his hips as his organ slid right up inside, stopping only when his crotch was tight against her ass. The satiny lining of her lifted skirt was cool against his own belly.

"Oh YES!" she cried as he started to fuck her. "Oh Yes! Yes! Deeper! Put it in DEEPER!"

Sandy began pumping in and out, his cock stroking deep as he fingered his sister's tits. In and out it slid. She didn't even notice when he reached behind himself to retrieve his remote control, turning the Device back on for cyclical pulses. But he could feel her body shiver with each new set of transmissions, her already tight cunt going into spasms as she humped back against him, faster and faster.

Sandy pulled his organ back out, rubbing it against his sister's soft rear. She moaned in disappointment, then gasped in surprise as he spread her ass cheeks and placed the wet slippery head of his cock against her pink anal opening. He pushed forward.

"Oh SANDY!" she cried out, feeling him violate her ass. "Not there!" But she leaned forward against the bed, sighing again in pleasure as his hands fingered her clit. He worked the head in and out as she got more and more excited, feeling her ass contract and loosen around his prick.

"Do it!" she finally said, her voice shaking. "Go ahead, Sandy. Put it in if you're going to! Oh, I'm cummming already!"

Slowly his hard shaft slid into his sister's asshole, inch by inch. This time he wasn't sure he could pull out, and he knew he was going to cum. As he started to pull back, the Device fired again. His cock was locked inside Sammy's contracting ass as he felt hot sperm begin to boil in his balls. He yanked her short skirt up high around her waist, watchng his cock jerk as her ass contracted around it again and again. He felt himself flood inside her, covering the inside of her ass, soaking the velvety membranes even wetter. He pushed forward, gushing sperm as her slender body writhed, her body pumping back against him and his hands on her ass, pulling himself even deeper into her. Her whole body began to shake as she reached her climax.

"AH YES!! Oh, shoot it into me, Sandy! Fill meeee with your hot cum! Do it to MEEEE! AH, OHHHH, YESSSSSS! YESSSSS!!"

Sunday night, Sandy reviewed his list, ordering the candidates in his mind. He considered their faces, bodies, and generally how sexy he thought the girls were. He planned his next experiment for a while, then made sure the batteries on the Device were connected to the charger. He washed and went to bed. Monday morning he rode his bike to school, his knapsack strapped to his back. He stored it in his locker. Despite his attempts at control, he walked around all day with an erection, waiting until last period, which was English. He stopped on the way to get his Device. As soon as he walked into the room, seeing Miss Elgin, his English teacher, his erection turned into a raging hard-on.

Miss Elgin, his sexy English teacher, had been third place on his list. That day she lived up to his expectations, wearing a tight purple miniskirt, black stockings and a blouse with frills down the front. The frills didn't do much to hide her well-developed tits. Her long black hair fell straight down her back and was held back from her face by two mother of pearl combs. From his vantage point at the side of the second row he could see her nicely shaped thighs as she stood up, tugging the short skirt down her shapely legs.

At the beginning of the year, After the boys in the class had found out who the teacher was, there had been a frantic rush for front seats on the side. Miss Elgin was a common target for locker room fantasies and jokes, and last year's class had informed them of the best vantage points for seating. Sandy was lucky enough to have slid into one, refusing to move even when one of the class bullies had threatened to beat him to a pulp. More than threatened, he remembered. He could almost feel the punches as he'd been beaten up, but he'd still refused to move. It had been well worth it.

That day, when the pretty teacher wrote on the blackboard, he let his eyes travel up and down her well-proportioned form from her high heels up her legs to her nicely curved ass. He looked at the rounded globes of her ass as she stretched to reach the top of the blackboard. Her waist was thin. She turned around to lecture and his eyes roamed over her full tits, studying the way they filled out her blouse. He could make out the outline of the her bra and imagined her breasts bouncing free of its restrictive hold. Fifteen minutes before the class was over she passed out a quiz, sitting and reading while the class completed it. Sandy whizzed through it. It was a snap even though he hadn't read the assignment, since he'd put on the play they were studying over the summer.

Just before the bell chimed, signalling the end of the school day, she walked up and down the aisles, collecting the quiz papers. He had the paper upside down on his desk and put his knapsack beside it. When she walked by his desk, reaching for the paper, he gave the Device a pulse, then another, noticing with some pleasure that the girl sitting across from him squeezed her legs together in an involuntary reaction. Miss Elgin paused a second, a puzzled look passing over her face, then walked on leaving a faint trail of perfume. He inhaled deeply, liking the smell of her. As the class was filing out, he stopped at the teacher's desk and asked if he could speak with her.

"Sure," she said, smiling up at him. Her large dark eyes were fixed on him, and he blushed a little. "What's the problem?"

"No problem, really," he'd said, marking time until the rest of the class had left. "I just wanted to discuss my term paper."

"Oh, fine, Sandy," she said. She arranged some papers on her desk, waiting. He dropped his knapsack beside her papers, near her body.

"Well, see, I'm doing this paper on Chaucer, and there are parts I, um, don't understand." He had the remote control hidden in his hand and gave it a pulse as he moved nearer to her, leaning on the desk.

"What parts?" she asked. He noticed the familiar shiver.

"Well, maybe it's because I really don't have the experience in life to understand some of the parts. Or to write about them anyway" Another pulse. Another shiver. She lowered her hand to her desk, then looked surprised that she had covered his hand with hers. She quickly pulled it away, looking a little puzzled.

"I'm having trouble with some of the, well, racier parts, if you know what I mean," he stammered.

"I've heard that kids these days have lots of experience. Much more than when I was in high school." Her voice was warm and soft and she looked up at him. He noticed her hand was moving back to his. He started the Device's automatic sequence. "Can you give me an example?"

"Well, like, how does a man tell a woman he wants to be with her? I mean if he's attracted to her, if she's really pretty, like you are, for example. If he's really turned on by her."

"Sandy," she said softly, her hand covering his. "Are you telling me you're attracted to me?"

"Sure," he replied, his free hand touching her shoulder. The material of her blouse was smooth and silky and her skin felt warm beneath his fingers. "Every boy in your class is in love with you, you know. It's nice watching you in those short skirts, with your beautiful legs. And when you wear tight sweaters, we have to sit with our legs crossed!"

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