Author's note: The use of psychological terms and conditions in the following selection does not imply the author believes that he knows anything about psychology. The use of such is merely a tool to make the story more fun and entertaining as I am in no way claiming to be an expert having taken a grand total of two college Psychology courses before many readers of this site were born.
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"Harder, oh come on big daddy pound my cunt with that big dick; cum in me; my cunt is on fire," Susan yelped at her father. Sweat was running off the older man with jet black hair that now was being filled in by silver streaks. John, at age 44, couldn't believe his daughter was screaming for his seven inch prick.
"Oh fuck yes, baby girl, then take this my little sluttie daughter. You are a hot little bitch aren't you?" John worked his cock in and out of the young girl's twat. He wrapped his hand into her long blonde hair that perfectly topped her five foot seven inch frame. He thought to himself what a frame it was too. She only weighed about 135 or 140 pounds with 36C boobs and a large 40 inch ass and sexy bedroom blue eyes.
"Yes, daddy I am the hottest fucking God damn bitch in town! Oh Christ daddy I am cumming; come on fucker fill my twat up with your seed." Her father stood about five inches taller than she did and weighed 185 pounds and was very athletically built from working out and running. He felt so good inside of her and could make love to her for hours on end.
"Oh shit, little girl I'm cumming," he exclaimed as he released a massive load of sticky nectar deep in her cunt. At the same time he felt his daughter shudder in her own orgasm as she cried out in pure delight. They collapsed beside each other on his king size bed which hadn't gotten much action since his wife ran off with an English Professor.
His friends told him never to date a Romance Languages Professor but he didn't listen and ended up jilted when she got stars in her eyes when the other guy quoted Shakespeare. As head of the Psychology Department he thought he should be able to handle this break up better than most people but it had been three years and he still thought of his wife from time to time.
His daughter, Susan, had helped him not only by fucking him but she seemed to understand him. After all, he was so very proud of Susan as she had just gotten her Master's degree in Psychology herself. Daddy was so proud of his little girl but now they spent many evenings arguing psychological theory.
Susan had been doing experiments on Pavlov's theories. She thought that she could use conditioned response on adults successfully enough that they might do things in public that they wouldn't normally do. Her father argued that you couldn't make a normally intelligent adult do anything unless you either thoroughly brainwashed them or hypnotized them. He confessed that using behavior modification techniques was very helpful in changing a behavior but these people wanted to change the behavior.
Susan told him she had already had some success with one of her classmates who would put her hand to her ear whenever she heard the word 'hi'. She admitted that behavior would likely wear off unless reinforced with positive feedback. Also, it took her a week and three pounds of M&M's to train her. Her dad's come back was that the girl was only touching her ear because Susan was around and expected it.
"Ok, daddy, I'll bet you that I can cause you to have a conditioned response," she pronounced a little defensively.
"There isn't any way in hell, little girl, I know all of the tricks, you just couldn't do it," John boasted.
"Do you want to bet on it?"
"What is the bet and how long do you get?"
"Ok, daddy I'll have you conditioned in ten days and you will still respond two weeks from today. But, you must do everything I say or the bet is off," Susan said gaining some confidence.
"I will be the model test subject, but will resist the conditioning like any smart adult. So, what are we betting?"
"Ok, if you win I will become your sluttie bitch whore and do anything you want. I'll take it up the ass; find another girl for a threesome, or whatever else you want."
John was excited but had to ask, "And what if you win?"
"Well then daddy your ass is mine. If I want you to put on my panties or fuck in the park you will do it." John didn't like the idea of wearing her panties or fucking in public but agreed knowing that his chances of losing were slim. They sealed their bet with a long passionate kiss lasting a full two minutes.
"Well, Susan what are you going to train me to do?" he asked slightly out of breath. He hoped that it wouldn't be something really embarrassing just in case she should really succeed. His worst fears realized when she told him.
"Well, daddy you will get the biggest tent in your pants whenever prompted. You will get so hard that it will feel as if the skin is two sizes too tight." she responded with a glint in her eyes.
"That is no test, I get hard whenever I see you or hear the word fuck," he snapped back.
"Oh don't worry daddy you will get hard no matter who gives you the cue; man, woman, little child, or even shriveled up 110 year old lady. Of course I won't use a word like fuck that wouldn't be fair. But I know I'll make you so fucking hard all of the time for the next two weeks that you will feel like you could cum at any time."
"I will believe that when I see it; the clock is running." Susan stood just smiling at her daddy knowing all of his sexual weaknesses. She was well aware of the power that he had given her as to get a fuck he would practically do anything which would make him putty in her hands for training.
"No, no, no, the clock starts right now because big sexy daddy whenever you hear or say the word 'hi' your big sexy cock will get so hard and big for me. Don't you want to get big and hard for your hot little bitching girl, daddy?"
