With apologies to StoryMaster for mention of his school.
Tina woke up in her own bed, for the first time since she'd woken up in The Youth Training Center's Wonder Wing after being abducted from the last day of 4th grade, months ago. She wasn't entirely surprised as she'd known she was close to graduation and had pulled a train of the entire male staff the previous day.
What did surprise her was that there was no sign of her daddy or any of her uncles, not even her big brother, who had pooled their funds to send her to the Training Center, so at least one of them should have been in her when she woke up.
Thinking of her brother she looked at his bed on the other side of the room to see that it was made and didn't appear to have been slept in, and then she noticed that the room was neat. That was odd as Tommy had never picked anything up or made his bed in his life, that she knew of, though considering he was 5 years older than her, he might have before she knew of, but she doubted it. What's more she didn't smell cum, a smell she'd gotten very familiar with at the Center, and at 14 Tommy couldn't go a day without jacking off, usually three or four times a day, and he was no better at cleaning that up than anything else. He never made any pretense of hiding what he was doing from her. She used to think it was disgusting, but now, after her training, she understood that it was right and proper, and was disgusted with herself for how she behaved then, now she would offer to help in any way she could.
Tina got up, and saw her phone, a little surprisingly as she'd had it with her when she was abducted, on the nightstand between her and Tommy's beds. She checked the date and saw that it was the last day of summer break and tomorrow would be the first day of 5th grade.
Tina went to look for her family, not even thinking of getting dressed, as "Nice girls don't wear clothes, clothes don't make nice girls" the mantra that had been ingrained into her from her first day at the Center. She went through the house calling out, "Masters, Mistress!" After a bit she realized she should be using their old names, "Mommy, Daddy, Tommy, Uncle Joe, Uncle Frank, I'm back."
She looked in her parents' room seeing that the bed was a mess, and here she did smell cum, and lots of it, which was also odd as Mommy and Daddy hadn't fucked for years. In fact, her fighting and crying when Daddy came to her late at night was why she'd been sent to the Training Center. She'd tried telling Mommy but she'd accused Tina of making up stories.
After finding the house empty, she realized it was Sunday, they were probably at church, especially considering Mommy was the minister.
Tina went back to her room to get one of the ankle length gray dresses which all the women and girls in this conservative Bible Belt town were allowed to wear, but found that her closet was empty. There was a brief struggle between the morality she'd been taught all her life, and the training she'd gotten over the summer.
Tina shrugged and went through the downstairs bathroom to the door that led to the wings of the Minister's podium in her mother's church. As soon as she opened the door, her eyes popped and her jaw dropped.
There was her mother standing at her lectern stark naked (as all fertile women, and all girls should be) extolling the virtues of free love, incest, and being fruitful and multiplying, and decrying any form of birth control and age of consent laws, while being eaten out by her son, who was in the foot well of the lectern getting a blow job from their 5-year-old cousin, Jenny, Uncle Joe's baby girl.
As she stepped farther into the room she saw that the pews had all been removed and replaced with mattresses, and that the entire congregation (ranging in age from half a dozen newborns to Old Man Johnson at 89) were scattered around, all completely naked and engaged in various sexual activities, including some same-sex, and various combinations, mostly with relatives, fathers and daughters, mothers and sons, brothers and sisters, but none with spice. If someone was about to hook up with their spouse, they'd skip over them and go to the next partner.
After looking around for a bit, Tina spotted her father in the middle of the room fucking his sister, Uncle Frank's wife. She ran to him, got on her knees with her hands behind her back, as though bound at wrist and elbow, and her head bowed, "Master? May I be of service to you?" and waited for a response.
After a few moments Aunt Frances looked at her, disengaged form kissing Daddy and paused in her bouncing in Daddy's lap, and, pointing at Tina with her chin said, "Tony, Honey, I think she's for you."
Daddy said, "Hungh?" and glanced in Tina's direction before thrusting deeply into Aunt Frances, going stiff, holding that position for several seconds, and grunting three or four times, then collapsing.
Aunt Frances stood up, with fresh cum running down her leg, muttering something about not having gotten off, then, seeing that Cousin Giorgio, her 12-year-old son, had just finished fucking Frank's mother and was lying on his back recovering, went to him and mounted him cowgirl style, taking his still-hard cock into her desperate vagina.
Tina waited at parade rest, on her shoulder width spread knees, shoulders back, forearms touching behind her back, head bowed, for Daddy/Master to give her a command.
Tony took a couple minutes to catch his breath, then opened his eyes to see Tina kneeling over him, "Tina, you're home. Did you enjoy your summer at Wonder Wing?"
Tina, without moving her body or head, glanced around nervously, but no one reacted to the name. "How may I service you, Master?"
Tony, somewhat befuddled, said, as though startled, "Oh, yeah, would you clean me up, Honey?"
Tina said, joyously, "Yes, Master, thank you Master," and taking his cock in her hands proceeded to lick and suck it and his pubic hair and balls till every bit of his spent cum and Aunt Frances's cunt juice was gone. She then took his cock in her mouth and started sucking.
Once he was hard again Tony positioned Tina onto her back and mounted her in missionary position, then called out, "Martha, Tina's home, and that Youth Training Center place seems to have done a good job with her, but just to be safe, I think we should take her to Doc. McCoy tomorrow."
Looking around, Tony saw Mr. Jones, the school principal, "Chuck, is it okay if my Tina misses the first day of school?"
Jones replied, pausing briefly in fucking a kindergarten student from his school, "Under the circumstances, since everyone associated with the school is required to have the treatment, that won't be a problem."
The orgy continued for the rest of the day and into the night and Tina fucked and was fucked by nearly every male there after Daddy came in her and told her to enjoy herself. She even gave Old Man Johnson a blow job, and drank pee from a couple of the babies.
The next morning Tina woke up in her own bed, being DPd by Daddy and Tommy. Daddy said "I'm sorry that we weren't here to greet you properly yesterday, Honey," emphasizing every word with a thrust into her pussy.
"That's okay, Master, I enjoyed yesterday anyway." She kissed him passionately and ground her hips into his.
Tommy grunted and filled her ass with cum, than got off and left to go downstairs to breakfast.
Tina was a little shocked that he didn't get dressed.
Daddy grinned, "Don't mind him; he's got to fuck Mommy before he leaves for school."
Daddy gave a final thrust and filled Tina's womb with seed while tweaking her clit till she came.
He stood and extended a hand to her. "Come along, we've got to get you to the doctor."
Tina took his hand saying, "Thank you for letting me cum, Master. Yes, Master," as she got off the bed and stood waiting to follow him.
Daddy led her to the car and buckled her into the back seat while explaining to her, "You don't have to call me 'Master,' you can call me 'Daddy' like you always have."
"Yes, Daddy."
As they drove to the town center Tina saw that everyone she saw was naked, and several were engaged in various sexual activities with no apparent regard for the ages or sexes of the parings.
At the town center Daddy pulled into a parking slot in front of a new storefront that hadn't been there when she'd left. The sign on the window said "Frank McCoy – MD, DPS, LST – Outpatient Clinic."
They went into the office, where they were greeted by a nude receptionist who couldn't have been a day over 15. "Good morning, you must be Tina and father. Please leave any metal items out here then go right in, Daddy's, um, Doctor's expecting you."
Daddy said, "Thank you, Jane," and they proceeded to the back room, where a middle-aged man wearing an unbuttoned lab coat, and nothing else, sat in front of a panel with two computer joysticks and a set of VR goggles. Through a wall sized window into the next room they could see an MRI machine, though the table had Velcro straps for waist, ankles, wrists, and head. On the side wall was a 30 inch monitor, currently blank, though the faint glow and the light on the frame indicated that it was on.
"Hello, Tina, I'm Dr. McCoy."
Tine knelt, in front of Dr. McCoy and started fellating him.
Daddy and Doc. McCoy smiled, and Doc. said "I see you've been to TYTC," and patted Tina's head. Then to Tony, "They do good work there, and from the records I got from them this morning, Tina here, graduated with honors. But they only do conditioning, and any conditioning, without reinforcement, can, and eventually will, be broken. My psycho-surgical technique is permanent and irreversible.
"As soon as she's finished here, we'll strap her into the FMRI and line the surgery bot up." With that Doc took hold of Tina's head and started face fucking her, balls deep, till he came.
"Tina, go with Doc, and do everything he tells you."
"Yes, Daddy."
Tina climbed onto the table and Doc and Tony strapped her to it, being particularly careful that her head is completely immobilized. Doc said, "Don't move, no matter what happens."
"Yes, Master Doc."
Then he lined the bot up over her face so the endoscope could enter her nostril, and slid the table into the MRI.
"Tony, if you'll look at the monitor."
Tony looked, the left half of the screen showed an extreme close up of a nostril. The right side was still black.
"That's the view from the endoscope; the other side will be the MRI once I start it."
With that Doc flipped a switch on the panel in front of him and the MRI started and Daddy saw an image of a brain forming on the right half of the monitor.
Doc put on the VR goggles, and started manipulating the joy sticks.
The monitor showed the nostril getting bigger until the probe entered it then went through it and into the sinus, and approached a wall, went through it and into the brain. On the MRI screen the probe appeared near the front.
"I'm showing Tina images that should stimulate the parts of the brain I'm interested in."
A section of the brain image lights up and the probe moves toward it.
"There," Doc presses a button on one of the joysticks, "that will remove her sexual inhibitions."
That area fades, and the next one lights up and the probe moves toward it.
"This will increase her libido."
Another area lights up.
"And this will make her totally submissive."
Now the probe backed out, following the same path, in reverse, fired a laser to cauterize the hole at the back of her sinus, then backed out the rest of the way till it was looking at Tina's nostril again. Doc turned off both machines and took off the goggles as the monitor went back to black.
As Doc and Daddy went back to the MRI room, pulled Tina out of the MRI, and remove the endoscope bot, and unstrapped her from the table, Doc explained, "This will compliment her TYTC training, and make it permanent.
"As you know, I've given this treatment to everyone in town, though only females get that last cut.
"Come with me to the recovery room." He calls to the lobby, "Jane, come!"
He then leads them to another room, where there are two beds, "Get on one of the bed, both of you."
They do.
Doc makes a sign of the cross in front of himself, saying, "I now pronounce you Master and slave. You may now fuck your daughter."
Jane comes into the room, moaning and holding her crotch, and gets onto the other bed, lying back and spreading her legs where Doc climbs between them and starts fucking her, while Daddy gets between Tina's legs and starts fucking her.
Once they've finished Doc says, "There aren't any follow up treatments, they aren't necessary. But remember when she has babies; you must bring them in to get The Treatment, as soon as possible.