"It's really remarkable," said Dr. Grimm as she was sitting in Richard's office. "Her arousal readings went off the chart and she climaxed as soon as the cane came struck her breasts. With most people, the readings would have gone way down with the blow."
"Hmmm," said Dr. Blackwell as he rubbed his chin. "That is surprising. But how do you know that it would go down in most people?"
"Anecdotal evidence is all I have," replied Susan. "But I have seen women lose their arousal when pain is applied. I have seen men lose their erections from a whipping or paddling. I'm not sure that any studies have been done but I'm sure that arousal is usually reduced from pain."
"Maybe that's something that you should study," offered Richard. "Some solid academic work on the topic would be very enlightening."
That night, Susan designed a research project to examine the influence of pain on arousal. It would initially just be a small sample of five females and five males. She was sure she would get volunteers from the university once she posted the notice.
Cency's eyes were wide the next day as she read the research plan. "Dr. Grimm… I mean Mistress. Who in their right mind would volunteer for this? I mean who would willingly accept pain?"
"Well, dear," replied Susan. "They won't exactly be volunteers. There will be a small stipend for each of them. And a lot of people will do things that they don't want to for money. Plus they won't see the entire research plan. All that they will know is that we are doing arousal research."
"Wow!" said Innocence. "I sure hope it's a big stipend. When do we start the study?"
"Hopefully in two weeks," Susan said. "I'll post the notice today. We can screen candidates next week and begin the following week."
"She's brilliant," Richard smiled brightly that evening over dinner with Innocence. "I love her research design. Her screening tool is very well thought out. And her method of arousing the subject is sure fire and economical."
"She didn't tell me how she planned to screen candidates."
"It's pretty simple. No virgins and nobody who has been into the domination and submission scene." Richard laughed. "Poor Katy. She won't be able to earn a few bucks on this one."
"Oh, that makes sense," nodded Innocence. "And how is she going to arouse them?"
"With you, pet," he grinned. "Or more accurately, with your lips and tongue."
"Oh god," groaned Innocence. She wondered if any other doctoral students ever had to go through the indignities that her research was dragging her through.
On Saturday night, Susan walked into the ballroom for the latest gathering of the domination and submission crowd. Richard decided that he should attend but when Susan called to make the reservations for the three of them, she learned that they would need an additional sub. Married couples could share a sub but unmarried couples each needed their own. Richard talked to Kaitlin and she agreed to go as the second sub. So now, Katy was tethered to Susan and Richard held Cency's leash. Dr. Grimm would have preferred to have Innocence so she could always be near for the purposes of the research project. But she also recognized that it would be awkward for a nearly naked Katy to be led around by her father.
Richard was certainly getting an eye full. Kaitlin was dressed in an outfit that was identical to Cency's. Both wore the sheer pantaloons and the tiny cropped vests. This was more of his daughter than he had ever seen and he marveled at how mature and magnificent her body was. And both girls soon became the center of attention in the big ballroom.
Displays lined the wall where stalls were filled with vendors offering bondage equipment and gear. They wandered down the row of little shops, looking at all of the merchandise. Innocence was the least interested in the goods. To her, they all just represented new ways of tormenting her.
Kaitlin was the most interested and she had to examine every device and machine that they encountered. "How do these work?" she asked, holding up two odd looking objects.
"Here," replied the woman at the stall. "I'll show you." Then she turned to Susan who was holding Kaitlin's leash. "May I?"
"Be my guest," offered Susan.
Richard's eyes grew wide as the vendor reached up and slid Katy's vest off of her, exposing her from the waist up. This was the first time he had ever seen her full, beautiful breasts and he was mesmerized by the twin mounds of magnificence. They were as perfect as Cency's.
The woman took the objects from Kaitlin and pressed a button on each. They unfolded automatically and the woman moved quickly to attach the clamps to each of Katy's nipples.
"Yeeeoooowwwww!!!" she cried out. "They hurt!!! I'll take them."
The vendor laughed at the response and then removed the punishing little monsters. "She's a spunky one," said the woman. "You must get hours of pleasure from her."
"Yes," replied Susan. "I find her to be quite pleasing." Innocence just shook her head in disbelief.
Down the hall, in another room, several demonstrations were underway. They wandered around the various displays with the dominants leading their subs by their leashes. One demonstration illustrated decorative rope bondage. Another was demonstrating a fucking machine in which the sub was bound to a bench and a motorized device was pounding a dildo into the girl. Yet another one had a wide assortment of paddles that could be tested on subs who were volunteered by their ‘owners.'
"Ooooo, Mistress," squealed Kaitlin. "Can we try this area for awhile?" Again, Innocence shook her head in disbelief.
"No, Katy," replied Richard. He was having a difficult time keeping his eyes off of his daughter's chest. She had remained topless after trying on the clamps and the glorious, large orbs had been distracting him ever since. "We are selling Innocence tonight and we don't want her marked."
"Oh," pouted Kaitlin at the news. "Well could I try it? No, wait!!! Could I be sold too?"
Innocence gasped as she learned that she was to be sold again. It was so unfair. Then she shook her head yet another time in disbelief as she heard Kaitlin ask to be sold. Was this the same stepdaughter who had claimed her and dominated her? Why would she ever even consider being sold, let alone ask for it?
"What do you think, Susan?" asked Richard.
"She's of age," replied Dr. Grimm. "So there's nothing wrong with it. And maybe she'll learn from it."
"Let me think about it," he replied.
They continued their wanderings and the two dominants walked together. "Are you sure you are okay with selling Cency again?" asked Susan. "It really will help the research. And I plan on leaving the sensors in until after the sale to be able to record her reactions."
"I'm fine with selling her," he replied. "It will be good data and she'll get some valuable experience. I just regret that I will lose her again for awhile. I have needs too, you know."
Kaitlin overheard the conversation and piped up. "Ooooo!!! I could be your little slavegirl while Mom's away. I'll take care of all of your needs, Daddy. All of them."
Richard stopped in his tracks and turned to Dr. Grimm. "We sell them both tonight."
Both girls were sold that night along with eight others. Once again, Innocence was sold last and Kaitlin was second to last. Kaitlin was sold for twelve thousand dollars for twenty four hours of slavery which would have been a club record if Innocence hadn't been sold for fifteen a few weeks earlier. The crowd seemed to highly value Kaitlin's large, firm breasts and her youthful enthusiasm.
Innocence's price was also twelve thousand dollars for one night and she strangely felt disappointment and worried that her value had dropped.
Susan met Innocence in the settlement room and took her aside to remove the sensor from her bottom. Then the couple who bought her came to claim her and she was led away.
"Oooooo!!!" exclaimed Kaitlin when she learned the names of the ones who had bought her. "You're the ones who bought my mom a few weeks ago."
"Innocence is your mother?" asked Trudy incredulously.
"Well, my stepmother, actually."
"Oh, this is interesting," said Trudy. "Maybe we should invite Richard over again. I wonder if he will enjoy our new girl as much as our last one."
"I'm just going to pay for the extension now," said Frank. "It will save us the effort later. And I already know I want to keep her."