6 comments/ 49511 views/ 23 favorites The Expansion Experiment By: SparkleKitty Against the warnings of his colleagues at Harvard University, Rod Johnson, a brilliant theoretical biologist, had invested all of his efforts in finding methods to naturally enhance the size of women's breasts. He had secured a grant to study the formation of tumors in rats, but in fact had used the money for his secret passion: the application of chemicals and physical stimulation to increase bust size. Harvard quickly became suspicious of Johnson - not merely due to his obsession with breasts. They had first been tipped off by Johnson's request for graduate assistants. First, he had specified that only female assistants need apply - and secondly, several feminist students had complained that the graduate assistant interviews had been inappropriate, with Johnson asking intimate questions about their breast measurements, their interest in increasing their breast size to outlandish levels, and their willingness to undergo various therapies. An initial investigation had been inconclusive, as Johnson assured the University he was being framed by angry feminists - and indeed, the two women who complained seemed unbalanced and their tales improbable. Johnson had prepared his five assistants for the investigation and each woman assured the University that the interview had been entirely above board. In fact, each of the women had stripped naked for Johnson and allowed him to measure and massage their breasts as part of the interview process - but they kept this information hidden. Johnson had secured five graduate students to assist him and his notebook reflected the diversity of body types. He also had a sixth assistant, a young man, Gus, who was short and thin with coke-bottle lens glasses. With suspicion swirling around him, Johnson knew he had to act quickly. He held his first meeting with his students. The women entered his lab and stood in a line, awaiting his instructions. "Each of you is a pioneer," Johnson began, "blazing a trail that can free women to have the bodies they envision." Some of the women smiled at the thought of their role - others remained stony-faced, nervous and slightly apprehensive at the path before them. One woman giggled as she thought to herself, "I'm just here to get bigger tits." Johnson reviewed the research plan in detail, the students listening attentively. His description was highly technical and thus, the women were caught off guard when he quickly announced, "Okay, let's get started - remove your clothing." The women had already removed their clothing during the interview process, so they had anticipated the need to disrobe, but it was still startling to hear the professor switch so abruptly from technical jargon to what seemed like a primal command. But after their initial shock wore off, the women dutifully removed their clothing and placed their clothes in the plastic totes that were provided to them by Gus. "The protocol begins," Johnson began. Each woman followed the same process, moving from station to station, with Jolene beginning first. At the first station, Johnson weighed the women and took their measurements. As he barked out the numbers, Gus scrambled to record the data in a spreadsheet. Johnson smiled as he announced, Jenn: "235 pounds." This cow would be his best subject, he thought. He noted her large pendulous breasts streaked with veins - her breasts were already massive and he nearly salivated at the possibility of tripling them in size. At the second station, each woman was injected with a serum. The serum served several purposes: first, it contained nutrients critical to the growth of breast tissue; secondly, it stimulated milk production, which would further swell the breasts, and last - but not least - it contained a psychotropic drug that would lower their inhibitions while also encouraging greater compliance with authority. Johnson applied the shots and Gus quickly placed gauze and a bandaid on the women. At the third station, each woman was placed in a private booth and laid on a table. "This may seem overly familiar," Johnson cautioned the women, "But I assure you that what we are about to do is solely in the interest of science." Johnson then massaged the breasts of the women and sucked fiercely on their nipples. He instructed Gus to do the same, so that both breasts could be addressed simultaneously. As Gus continued to suck on Jolene's small breasts, Johnson lifted his head up. "You may find yourself sexually stimulated by this exercise and, if so, I don't want you to feel embarrassment. It's entirely natural and we won't think anything less of your professionalism should you betray the signs of arousal." Jolene nodded seriously at the professor, who then returned to his aggressive sucking of her breasts. The women reacted to the third station in varied ways. Jolene seemed to grit her teeth during the massage and sucking, while Angie moaned lightly and her nipples became engorged. Tracy had the strongest reaction, writhing on the table and clearly betraying an emerging moistness in her pussy. Jenn softly moaned throughout, smiling at the men and Hitomi released high pitched sighs that Gus found cute and endearing. The fourth station looked almost like a torture chamber. It was an apparatus designed to serve all five women simultaneously. As each woman completed the third station, they were placed in a harness that held them in place under their arms and legs so that they were hanging down, almost as if they were flying. A "blackout" helmet was then placed on their heads, designed to remove all sensation - sounds, sights and smells. Two cups were placed on each breast and when the machine was switched on, the cups rhythmically pumped the women's breasts. A small "rabbit" vibrator was placed in their vaginas, designed to stimulate their g-spot and clitoris simultaneously. A series of electrical sensors were patched onto the woman at various places to monitor their vitals. It was hard work placing the women into the harnesses - particularly the 235 pound Jenn. Gus and Johnson sat on a bench catching their breath as the machines rhythmically milked and fucked the women. "These first few sessions will likely not produce any milk," Johnson noted to Gus - pointing to collection jugs that were connected to the breast pumps. "And for the first day, we'll just spend thirty minutes with the machines but we'll gradually build the women up to four hour sessions." Gus nodded. His thoughts on the matter could not be deciphered from his calm demeanor. The final station was a debriefing zone. Unlike the cold clinical nature of the rest of the laboratory, this station was cozy and brightly decorated. Each woman sat on a comfortable medical chair as Johnson took their vitals and quizzed them about their experience on the machines. "Did you experience orgasms and if so, how many?" he asked the women in a clinical manner. Most of the women had experienced multiple orgasms, but Angie was a difficult case - she noted that she had failed to orgasm and that the rabbit vibrator had irritated her. "Do you want to drop out of the study?" Johnson challenged her. "No," she assured him firmly. "I'm committed to the study." Each woman was given a bag with a meal replacement solution - a high calorie drink they were to consume five times a day. "I cannot stress to you how important it is that you drink all of this solution," Johnson told the women. "You can eat whatever you want in addition to this solution, but you must consume this solution at the prescribed intervals in its entirety." He spoke forcefully and, even though the psychotronic obedience drug had not yet fully accumulated in their system, the women listened respectfully and pledged their adherence to the program. The regimen continued with full compliance by the women - and on the fifth day, they saw two breakthroughs! First, the women had begun to show signs of breast expansion. Even tiny Jolene had added a full inch to her bust and Jenn had added two inches. Secondly, when the women were in station four, Gus excitedly tapped Johnson on the shoulder. Jenn was expressing milk - it was a small dribble, but Johnson had not expected any milk for at least a week. After the women had left, Johnson and Gus measured Jenn's milk production. She had produced seven milliliters - a minuscule amount, but success all the same. Using a dropper, Johnson removed the milk from the flask and then, instructing Gus to open his mouth, placed a drop on his tongue. Gus tasted the milk and smiled. As Gus prepared to depart for the day, Johnson stopped him in the hallway. "This next phase is going to be very interesting - and possibly fun," he informed the young man. "You do like girls, don't you?" he asked. Gus nodded emphatically. "I do," he said. "I mean, I've never really been with a girl but I want to." "Good," Johnson told him, patting him on the back. "Well, get some rest. Phase two begins tomorrow." *** The next day, the women could sense something was different. Instead of progressing directly to station one, Johnson had them wait in formation. "All of you have seen improvement in your bust size," Johnson told the women. "And this is only the start - you will see far greater improvements." He walked up and down the line, as if examining the women. He stopped and paused. "But we now get to the difficult part of the study and I need to know your commitment in trust in me is absolute." He stared at the women - all of whom seemed eager to assure him of their commitment. The drugs are working, he thought to himself. "Do you think I would do anything to harm any of you?" he asked. The women all shook their heads and murmured No. "Do you think I - or Gus - would do anything if it weren't purely in the interest of science?" he asked the women. Again, they shook their heads and, more loudly, sounded out No. "Very good," he told them. "We will be introducing a new station." The women continued the protocol as before, each wondering about the new station. As they made their way to the familiar station five, each began to wonder if there really was an additional station. "Jolene, you have made fantastic progress," Johnson told her. "You are now a 34B - a far cry from the F-cup breasts you desire, but progress all the same." He placed her hands on her breasts. "And today, for the first time, you expressed milk - five milliliters," he told her. "Alas, your progress has been tremendous, but you are not ready for the additional sixth station. I'm sure with continued perseverance, you can progress to station six." Jolene walked out, carrying her meal replacement formula. She had mixed feelings - joy at her larger bust line, but disappointment in not qualifying for station six. This feeling made her even more committed to follow the program and Johnson's orders completely. With the exception of Jenn, each of the other women heard a similar story. Angie, though now a 47F, was unable to achieve orgasms during station four and was thus not yet ready for station six. Tracy, now a 37D, had not yet expressed milk. And Hitomi, now a 36C, had been late to Thursday's sessions and thus was not qualified for station six. Each of the women wondered, "What was station six and how can I qualify?" When Jenn entered station five, Johnson gave her a hug. "Congratulations," he told her. "Out of all of these fine women, you are the only subject that qualified for station six." Jenn felt a surge of happiness, pleased at her achievement. "Your breasts are now a 55H. You are experiencing multiple orgasms in station four. And just today, you produced a full pint of milk. Gus and I could not be prouder of what you've accomplished." Jenn beamed with pride. All of her life, she'd felt like a failure. She'd never been on a date and even though she was good at school, she'd been ostracized by the other students for her weight. Johnson held her hands firmly. "Are you ready for station six?" he asked her. Jenn nodded eagerly. "I don't know," Johnson told her. "When I tell you what is involved in station six, I'm going to bet you will just up and quit." "I won't!" Jenn insisted aggressively. Then, realizing perhaps she had gone too far, she spoke more softly. "I'm committed professor. I'll do whatever you tell me to do." Johnson took her hand and led her into a new room - one the assistants had never seen before. "The second phase of the program leverages the power of sexuality to augment your breast development," Johnson related. "That is, by having intercourse and ingesting semen, your body will undergo hormonal and physiological responses that will accelerate the effects of the protocol." Jenn looked in wonder at the large bed in the middle of station six. "You mean I'm going to have sex with you?" she asked. "And Gus," the professor nodded. "Purely in the interest of science. We'll be recording the session as part of our data protocol," he noted, pointing to a set of video cameras near the bed. "Jenn," he told her, looking into her eyes, "This is where I find out if you are truly committed to the study." "I am," she stammered. "It's just that, well, I'm a virgin and you'll need to show me what to do." Johnson smiled and began to remove his clothing. Gus was stunned - the study was certainly unusual, but if he understood Johnson correctly, he was about to have sex with Jenn. "We'll teach you," Johnson instructed her, positioning her in a kneeling posture. He frowned at Gus, who had not yet disrobed. Gus hurriedly removed his clothes. Johnson placed his hands on Jenn's shoulders and approached her, positioning his cock before her mouth. Obediently, Jenn opened her mouth and Johnson plunged his erect penis into her mouth. "A few minutes of me," Johnson explained, thrusting in and out of her mouth, "and then a few minutes of Gus." Consulting his watch, Johnson gave Jenn a few more thrusts and then pulled out. Gus stood stupidly, his cock semi-erect. Johnson pointed at the spot he had vacated and Gus scrambled over. "Take Gus's cock into your mouth and suck and stroke it," Johnson commanded. Jenn complied and Gus quickly became erect. Gus couldn't believe it, he was getting his first blowjob. Remembering what Johnson did, he held Jenn's face gently in his hands and thrust his hips, driving his cock in and out of her mouth. "Roll your tongue over his cock as it enters your mouth," Johnson instructed. Jenn complied and this pushed Gus beyond the point of no return. He froze as spasms of cum shot from his cock. Jenn felt like someone had opened a fire hose inside of her mouth. "Don't stop," Johnson shouted - whether his instruction was to Jenn or Gus was unclear, but Gus resumed his thrusts, gripping Jenn's head more tightly as he continued to ejaculate. "Drink it all down," Johnson instructed Jenn, patting her on the shoulder. She looked up at him and seemed to nod and swallow. Gus began to withdraw but Johnson pushed him back into position. "No, it's important than Jenn get all of your semen," he instructed. Gus could feel his cock becoming limp. "Suck more forcefully," Johnson instructed Jenn. "I want you to get as much of Gus's semen as you can." Jenn began to suck aggressively. "Very good," Johnson told her. "Okay, you can withdraw," he told Gus. Johnson fetched a glass of orange juice and handed it to Jenn. "You did magnificently," he told her. "We'll see if Gus can recover quickly enough to re-engage," he told her. Jenn felt proud of herself for bringing Gus to orgasm and she opened her mouth, preparing to suck Johnson's cock. "No, we'll move onto the next set of activities," Johnson told her. He lay her on the bed and instructed Gus to get between her legs. "Lick her vagina," Johnson told him. "If she moans, keep doing what you are doing. If she flinches, move to something else." Gus obeyed. Johnson took a small bottle of lubricant and covered the insides of Jenn's large breasts. "Push your breasts together," he commanded her. Jenn pressed her breasts together and Johnson began to rhythmically fuck her tits. "This is called mammary sex," Johnson informed her, "and it is great for stimulating breast growth. I would encourage you to find several men and engage in this activity multiple times a day." "But how do I find men to do this?" Jenn asked him. Johnson smiled. "Shh," he told her and he lengthened his strokes so that his cock banged against her chin. "Tilt your head down and then open your mouth so you can suck my cock at the end of each stroke." Jenn tilted her head down and Johnson began to simultaneously fuck her tits and mouth. Her tits were so large that by pushing them forward, he could plunge nearly half of his eight inch cock into her mouth. Johnson quickened his pace and, feeling an orgasm approaching, moved forward and burrowed further into her mouth so that she could fully swallow his orgasm. His eight inches nearly entered her mouth fully, hitting the back of her throat. Jenn felt like she might gag or choke, but she relaxed and just as she felt a reasonable sense of calm, she felt chaotic spasms of ejaculate blasting inside of her. "Oh!" Johnson cried out. "I love science!" He continued to lightly thrust his cock into her mouth. "Drink it all down," he urged her. "All of it." Jenn nodded slightly without ceasing to suck. "Very good," he told her, removing his cock from her mouth. "You did very good," he repeated. Jenn smiled at his appreciation. "Let's see how Gus is doing," Johnson mused, petting the side of Jenn's face. Jenn had been so caught up in accommodating Johnson's cock that she had forgotten about Gus. She could feel his tongue sliding around her vagina. "He's erect again," Johnson announced. "Gus, you will have mammary intercourse with Jenn while I prepare her for conventional intercourse," Johnson instructed. Gus straddled Jenn and, with her breasts pushed together, began to fuck her tits. Meanwhile, Johnson performed cunnilingus on Jenn. More skilled than Gus, Johnson brought Jenn quickly to orgasm. Johnson could hear Gus moaning. "Gus, you will have to stop," he instructed the young man. "Come here," he directed Gus to reposition himself between Jenn's large thighs. "You will place your penis in Jenn's vagina and thrust until you ejaculate into her vagina." "But I'm not on birth control!" Jenn cried out. Johnson instructed Gus to begin as he placed his hands gently on Jenn's shoulders. "Pregnancy will enlarge your breasts further and produce more milk. We can then abort the fetus." Jenn nodded, but she also seemed worried and sad. "You are a beautiful woman who is becoming even more beautiful every day," Johnson told her. In the afterglow of her orgasm, Jenn felt like she would do anything for the professor. Johnson kissed her while he massaged her breasts. Meanwhile, after five or six thrusts, Gus climaxed once more. "Good lad," Johnson noted. After showering, the research team left the building. *** The next day, Johnson informed the women during lineup that only one had qualified for station six. And then with fanfare, he asked that woman to step forward. Timidly, Jenn stepped forward. She had spent her life blending in, trying to avoid attention. It seemed strange to be called out as a success. "Some of you will get to station six and not have the commitment to follow the program completely," Johnson noted. "Jenn here showed not only strong commitment, but true dedication. Her performance in station six was simply excellent." Jenn blushed and the other women felt a tremendous envy. The women's compliance with the protocol was stronger than ever. They moved swiftly from station to station and addressed the professor with tremendous respect. Finally, in station five, they received their eagerly awaited news. "Jolene," I cannot stress how pleased we are with your performance," Johnson noted, nodding to Gus. "You are now a full 35C - you've grown two cup sizes. Regrettably, you still do not qualify for station six, but with the progress you are making, I think you will achieve station six shortly." The Expansion Experiment "Angie, you still have not experienced orgasms. I need you to focus on visualization and relaxation so you can achieve an orgasm. On the positive side, you are now a 49G and are producing a full pint of milk each day - one of the largest quantities of milk production in the group." "Tracy, you are now a 39E but you are only producing a half pint of milk. Please do not be discouraged - any day now your milk production should increase to qualify you for station six." "Hitomi, congratulations," Johnson announced, " Your attendance has been impeccable since your tardiness and you now have a 37D. Moreover, you produced a full pint of milk today. It is your good fortune to join Jenn in station six." Johnson led Hitomi to station six and Jenn gave her a congratulatory hug. "Does that bed mean what I think it means?" Hitomi asked. Johnson gave her the same explanation for station six he had given Jenn and then paused staring at Hitomi for a response. "Look, at this point, I'll do whatever you tell me to do," she said. "I thought this whole idea was crazy, but now my breasts have gone from a B to a D cup - so you tell me what to do and I'm on board." Johnson smiled at her and began to remove his clothing. "I take it you are somewhat experienced sexually?" Johnson asked. Hitomi nodded. "And per the requirements of the job, you are not using any birth control methods?" he asked. Hitomi nodded. "I was on the pill but I stopped taking it. Now I make my boyfriend pull out - he actually loves it." She gently pushed her breasts together. "Now all he wants to do is fuck my tits and cream on them." "Well that is good, but for purposes of this protocol it would be better if you ingested the sperm orally, vaginally or anally as the proteins in the sperm facilitate breast growth." Hitomi nodded seriously, trying not to laugh at the doctor's elevated language. "Jenn benefited from Gus's large quantity of sperm yesterday, so it's your turn," Johnson noted. "Perhaps you could kneel and perform oral sex to completion for Gus." Hitomi approached Gus, who was just finishing removing his socks, and, placing her hands on his hips, began to suck his cock. Johnson watched the skilled cocksucker engulf Gus's average-size cock in her mouth, flitting her tongue around his scrotum as she took him fully in his mouth. "Agh!" Gus cried out in orgasm and Hitomi began to suck faster, gripping his ass cheeks as she pulled him into her. "Suck out every last drop!" Johnson shouted. Hitomi complied, sucking forcefully on Gus's cock, draining every drop of sperm from his cock. "You are very efficient," Johnson admired. "Perhaps you can take this refractory period as an opportunity to instruct Gus in cunnilingus." Hitomi nodded and led Gus to the bed. She couldn't believe the volume of sperm Gus had produced. "Jenn, sweet Jenn," Johnson murmured to her. "I know it is not professional to feel affection for a student, but I find you endearing and sweet," he told her. Jenn smiled and took Johnson's cock in her mouth. She had watched Hitomi suck cock and wanted to try to emulate her technique. "Very good," he told her. "I can see you are learning. And moreover, I can see you are dedicated to learning and to the protocol." Jenn nodded. "Do you want to do something special?" he asked Jenn. She nodded without pausing to suck his cock. Johnson rolled her over onto her belly and produced a jar of lube. He gently lubed her asshole and began to probe her ass with his fingers. "Yes," he told her, "I am going to anally penetrate you." Jenn let out a whimper as Johnson's cock pressed against her anus. "Do you not want to do this?" Johnson asked. "I want you to do this," Jenn told him. "Very good," he told her, pressing past her entryway. Jenn gripped the sheets, flattened against the bed. "Check it out," Hitomi directed Gus. "Professor is fucking Jenn up the ass." "Please use clinical terms in the laboratory," Johnson reprimanded her. "Sorry!" Hitomi called out. "Ah," she nodded to Gus, "You've got a hard-on, I mean an erection again. Permit me to retrieve your sperm orally or vaginally," she told him jokingly. Gus couldn't believe it. Two days ago he was a virgin and he was about to have sex for the fourth time. "Ohh!" Jenn cried out as Johnson deepened his penetration. "Your anus is tight," he informed Jenn. "It won't be long before I climax and the walls of your rectum will absorb the proteins in my sperm." He continued to thrust, his legs straddling her large ass. Johnson groaned and thrust even deeper into Jenn, his penis ejaculating forcefully. "Oh god, you are such a good research subject," he told Jenn, collapsing onto her back. Meanwhile, Hitomi had mounted Gus and was rhythmically rocking her hips. "Damn you are easy," Hitomi laughed as Gus orgasmed forcefully. The foursome hit the showers laughing. "I made station six," Hitomi sing-songed, "and I've got big tits!" as she rocking her hips back and forth, her D-cup breasts swaying. *** The women were astonished as they looked at each other in lineup. A cup Jolene was now a full D cup and Jenn was an astonishing J cup, her breasts swaying prodigiously with every movement. When Johnson announced that Hitomi had joined Jenn in achieving station six, Hitomi stepped forward and, holding her clasped hands above her head, danced around in celebration. "And I would like to especially thank Gus for his work with Hitomi in station six," Johnson announced. Gus smiled and Hitomi rushed up to him and gave him a kiss on the cheek. Johnson was pleased by Hitomi's reaction. She could see the other women burn with envy. "From now on, I will not announce who has achieved station six," Johnson noted. Hitomi continued to beam and Jenn, shy, showed no emotion. The protocol continued. The women were now up to a full four hours on the machine but Angie had still not orgasmed and Tracy was not yet producing a full pint of milk. Jolene was now invited to station six. Discouraged, Angie and Tracy left the building alone, each wondering if they were the only ones who had failed to achieve station six. Jolene was introduced to station six, as Jenn and Hitomi had been. And like them, she had been challenged to accept station six - and likewise she had assured Johnson of her willingness to engage in sex as part of the protocol. "Gus will attend to Jolene," Johnson noted, "but we are accelerating the protocol." He pulled back a curtain and eight young men entered the room. "These men will be donating their sperm to the protocol. They are young, free of sexual diseases and in good health. They have been fed the same special diet Gus and I have taken and should be able to produce large quantities of sperm and ejaculate multiple times per session. By introducing these men, we will be able to deliver a greater quantity of critical proteins to you." "Bring 'em on!" Hitomi laughed. Jenn looked nervously at Johnson. She felt safe and comfortable with Johnson and she sort of thought of Gus as Johnson's son - someone she should care for. But all of these men - men she had never met - she was expected to be sexually intimate with them? "Hitomi is committed," Johnson slowly noted, "what about you Jenn? Are you committed to my protocol?" Jenn nodded, fighting back tears. "Very good - you are my best subject and I only want the best protocol for you. I will monitor your sperm intake," he assured her. Hitomi stifled a gigle. Jolene had already begun performing oral sex on Gus. He had developed more stamina but he once again blew his load within minutes. Jolene greedily sucked his cock - she didn't want to deviate from the protocol one bit. Finally, Gus had to free himself from her vacuum seal grip. Meanwhile, Johnson was instructing the men to form a line. "You will each receive oral sex from Jenn until you ejaculate in her mouth. It is important that you ejaculate entirely in her mouth and you not withdraw your penis until she has sucked all of the sperm from you." The men nodded, some of them smiling. "Hitomi, why don't you partake of my semen while I observe Jenn," Johnson suggested. Hitomi began to apply her blowjob skills to Johnson while he instructed Jenn in servicing the men. Johnson had selected sexually inexperienced men and as a result, the men required his instruction and also climaxed quickly and with large volumes. Jenn felt she could not contain the ejaculate as the men in succession blew their loads down her throat. By the time the eighth man climaxed, Jenn felt like her entire stomach was filled with sperm. "Rest up for a few minutes," Johnson instructed the men, "while I attend to Hitomi." He began to quicken the pace of his thrusts and before long, he climaxed, ropes of cum splashing inside Hitomi's mouth. Dutifully, she sucked out every last drop and disgorged his penis from her mouth with a kiss. "Very good, Hitomi," he told her. "Jenn," Johnson asked, "How would you like to receive your next round of sperm?" Confused she looked at him with wonderment. "Orally, vaginally or anally?" he asked her. "Um," she responded slowly. "Let's just stick with orally," Johnson noted. "I think it is the most effective method." He lay Jenn on the bed on her back, her head hanging over the end of the bed. "In this manner, the men can deep throat you with little effort on your part. I'm erect again, so I'll show you and the men how it is done." He approached Jen and, parting her lips, inserted the full eight inches of his erect cock into her mouth, his cock making a bulge in her throat where he was penetrating her esophagus. "Note that my cock is fully entering her throat," Johnson indicated, lightly caressing Jenn's bulging throat where the head of his penis was visible. "In this manner, my ejaculate will directly enter her stomach. Moreover, the tightness of the esophagus will expedite the climax." He gently thrust his cock in and out of Jenn. "Relax so you can accept my full eight inches," Johnson instructed her. Jenn complied. He began to fuck her more aggressively and Jenn felt like she was hanging on for dear life. Finally, Johnson plunged his cock fully and held firmly as his ejaculate shot straight into her stomach. Slowly, he withdrew his cock. "And so," he noted to the men. "Form a line." Johnson kissed Jenn on the forehead. "Sweet Jenn, would you like me to stimulate your clitoris to orgasm while you ingest the sperm?" Jenn nodded - she loved the professor so much. She couldn't imagine doing all of this if it weren't for how deeply she loved him. "None for me?" Hitomi asked. "Tomorrow," the professor responded. "There will be even more men and we will continue to increase the intensity of the treatments." Hitomi smiled but at the same time, she felt worried about where that intensity might lead. Johnson performed cunnilingus on Jenn while the men began to thrust their cocks fully into her mouth. Most of the men could not reach her esophagus, which was a blessing to Jenn, who struggled to accommodate the professor. When the sixth man approached her, Jenn remembered that he had an oversized cock - even bigger than the professor's. She began to freeze up, but just then she found herself climaxing from the professor's attention. The man plunged his cock in fully and she found herself overcome. It literally felt like the man was fucking her stomach. Meanwhile, she groaned in orgasm, her vibrations bringing the man to climax - load after load shooting into her stomach. The seventh and eighth man were a blur and as she rose, she felt like she could feel sperm sloshing about her stomach. Hitomi put her arm round her. "You are a champ," she told her. Jenn was appreciative of that kindness, but too tired to even smile. In the shower, Johnson held Jenn in his arms. "Jenn, you did so well. I wasn't sure you could handle all of that, but I reminded myself that you are my very best student." Recovered, Jenn beamed with pride and reminded herself that the professor wouldn't ask her to do anything she wasn't capable of. *** When the women arrived, they gasped at the size of Jenn's breasts. She was now an M cup and as she stood, she held her breasts in her hands for support. The women complimented each other on their progress, calling particular attention to Jenn. Jolene - once an A cup, was now an F cup and Hitomi was a 39G. The protocol continued yet Angie still was unable to orgasm and Tracy was not producing sufficient milk. These outcomes puzzled the professor but he also liked the idea of withholding station six as a motivational tool. He thought Angie would balk at station six - withholding it from her would lead her to desire it more than ever. The same group entered station six as yesterday. Having seen Jenn's progress, Hitomi and Jolene were eager to ingest as much sperm as possible. The professor pulled back the curtain and revealed an additional 18 men. "Today, the protocol advances again." The men were all new as the professor had the men arranged on a five day cycle to maximize sperm production. Combined with their specialized diet, the five-day absence would cause the men to produce massive loads for the women. "Hitomi, you have waited for this day," the professor noted. "Today you will receive sperm from eight men. "Jenn, you seemed to struggle yesterday, so we will also hold you constant at eight men." Jenn hung her head at this comment. She thought she'd be relieved not to have to service more men, but her stronger emotion was shame at letting the professor down. "Jolene, we will start you with four men, including Gus and myself." The sex progressed as before. The professor began first by face fucking Jolene to a powerful orgasm. Hitomi was sucking off the men to orgasm in short order, quickly bringing the men to climax and draining their balls. Jenn was working through the men slowly. By the time Jolene had brought her four men to orgasm and Hitomi had worked fully through her eight, Jenn was still performing oral sex on her fourth man. She looked nervously about and tried to remember what she had seen in Hitomi's technique. "Jolene, I want to test your commitment to the program," Johnson noted. "I am going to insert sperm into your anus. Have you had anal sex before?" Jolene shook her head slowly from side to side. "Very well, I will use ample lubricant," the professor noted. He slathered her ass crack with lube and then slowly penetrated her ass. Jolene grimaced and Gus pet her head. "Oh God," Jolene cried out, "I actually like this!" Johnson continued to forcefully fuck her ass, finally climaxing. Gus clambered on top of her and before she had a chance to move, entered her ass and similarly began pounding away. He couldn't believe how tight it felt and within minutes he was ejaculating forcefully. The two remaining men shrugged and followed suit, depositing loads in Jolene's ass. She stood up and walked slightly bow-legged, sperm dripping from her ass. "Lie down, lie down!" Johnson commanded, positioning her on her stomach. "Allow your rectum to absorb the essential proteins!" Hitomi had just finished the second round of the eight men. "Can I help Jenn finish up?" she asked the professor. "I can keep going." "Do you want that, Jenn?" he asked her. Jenn sadly shook her head no. She still had seven men left to fuck. "You can fuck my ass," she told the remaining men. They brightened and the professor spread lubricant on her ass. She lay on her stomach, her breasts holding her up. Each man mounted her and penetrated her anally, forcefully ejaculating. After the eighth man, the professor came up to her and put his arm around her. "Just lay here a while," he told her. She nodded and lay her head on her side, resting like a beached whale. "Damn," Hitomi exclaimed. "That girl has determination!" *** At lineup the next day, the women were once again amazed by their progress. Angie scowled, noticing that the other women seemed to be making more progress than her. Hitomi, once a C-cup was now a full I cup and Jenn was an insane P cup. Jolene, once a measly A-cup, now had fully swollen G-cup breasts that hung down nearly to her belly. Johnson noticed that Jenn seemed very tired. Her P cup breasts hung down to her belly and she seemed to struggle to support their weight. For a moment he felt concern for her but then he quickly was absorbed with the possibility of her breasts becoming even larger. Tracy was now qualified for station six, having produced a full pint of milk - barely. Meanwhile, Jenn was producing a full gallon of milk and Hitomi a half gallon. Angie still had not orgasmed. Originally, the professor had used that as an excuse to limit the number of women at station six, but now he felt obligated to continue to use that as a criteria for entry. Tracy was overjoyed at her entry to station six. "You may not be so happy when you find out what station six entails," Johnson warned her as he walked her into the station. She saw the bed and also saw Jolene, Jenn and Hitomi waiting for her. Johnson explained the role of sexual activity in the protocol. Tracy seemed confused. "Do you understand?" Johnson asked her. "You mean I'm supposed to fuck you," she asked. "Well, not specifically me," the professor qualified. "We have multiple volunteers to provide sperm to you." "I love to fuck," Tracy told him. "I don't want sperm donors, I want to give head and fuck guys." "Well, I wouldn't phrase it exactly that way, but I think it's safe to say you'll be fine with the requirements of station six." Tracy gave Hitomi a high five. This time, when the professor pulled back the curtain, there were 48 men. The women gasped. "Hitomi, I'm pleased with your capacity to ingest sperm. If you think you can handle it, I'm doubling you to sixteen men." Hitomi gave a fist pump and smiled. "Jenn, I'm not sure of the right number for you. You are making such amazing progress and I'd like to continue that, but I don't want to overtax you." He paused. "How many men do you think you can accommodate?" "Twenty-four," she told him, looking him straight in the eye. "If I give you twenty-four men, you have to accommodate forty-eight climaxes. I can't have you wasting valuable sperm that other women could otherwise ingest." "Twenty-four," she repeated. "Okay, Jolene," the professor noted. "That leaves eight men for you and Gus and I will accommodate Tracy." "Don't treat me like some rookie!" Tracy complained. "I can do at least ten or twelve men two or three times each!" "Are you questioning the protocol?" Johnson asked. "No," Tracy quickly backed down. "Sorry." Hitomi set to work, quickly bringing the men to climax and eagerly sucking down all the sperm she could coax from their balls. Meanwhile, Jenn had organized the men into a system. The men not having sex with her were jerking off while two men at a time penetrated her anally and vaginally. As the men jerking off began to climax, they hurried over to her and gave final orgasmic thrusts into her mouth. This system worked fairly well until two men began to climax simultaneously. They each chose a side and hungrily fucked her mouth. She struggled to accommodate both cocks, but concentrated mightily so as not to lose any sperm. It felt like the men were jabbing her cheeks as their cocks exploded in near unison. Within twenty minutes, Jenn had brought all twenty men to orgasm. Hitomi, focused on her own efforts, wrapped up her first round and was surprised to see Jenn taking a break as the men recovered. "You did all twenty already?" Hitomi asked, shocked. "Yes," Jenn proudly noted. "Damn you are good!" Hitomi exclaimed. Johnson, observing their exchange, smiled with pride at the accomplishment of his favorite student. Tracy had quickly brought Gus to orgasm and Johnson had climaxed vaginally. "You can go first in round two if you want," Gus noted. Johnson thought to himself that he knew the reason for Gus's courtesy. The young man wanted to engage in anal intercourse and was hoping Johnson would lead the way. The Expansion Experiment "Tracy, I am going to test your commitment," Johnson told her, just as he had told Jolene. "Yeah?" Tracy asked. "How are you going to do that?" Wordlessly, Johnson applied lube to her asshole. "Oh, you're going to fuck me in the ass - I'm down for that." The professor smiled and began to fuck her ass. He could see Gus brighten in anticipation. The crew showered and Jenn was disappointed that the professor didn't seem to be paying much attention to her. Instead he was talking to Gus, planning the next day. She walked up to the professor. "Did I do okay today?" she meekly asked him. The professor paused and looked at his prize subject. Her breasts were magnificent. They now hung down past her belly and seemed like they were at risk of detaching from her body. "You did better than okay," he told her. "I just want to please you," she told him. She kneeled before him and, taking his limp cock in her mouth, began to apply all the lessons she had learned from Hitomi. The professor had begun to stop her, but hesitated, enjoying the warmth of her mouth. "Here," the professor instructed her, leaning her against the wall of the shower. "He lifted her leg and, parting her pussy, entered her, building his thrusts to a steady crescendo. Jenn moaned, enjoying his cock and enjoying his attention. The professor let go of her leg but remained inside of her, violently ramming up against her from behind, the fat young woman pressed against the side of the shower, water cascading down her back. The professor inserted his hands so that he held her breasts and he continued to thrust against her. With a groan he released, and began to ejaculate deep into her cavernous pussy. Jenn spun around and took his still spurting cock in her mouth, and sucked him dry. Standing up, the professor took his finger and scooped up a stray strand of ejaculate that had landed across her chin. Slowly, almost maternally, he fed it to her and she greedily sucked on his finger. "That girl never stops working!" Hitomi laughed. *** Several of the women had blown past their desired cup size, but no one was eager to leave the protocol. Where would this end, Gus wondered. Jenn was now an outrageous 72T. Her breasts were now 20 inches larger than the width of her band and she required custom bras. Her breasts also sagged down heavily, with her distended nipples pointing to the floor. If it hadn't been for her commitment to the professor, she would have ended the study. Her breasts were uncomfortable and clothes didn't fit properly. Her breasts were so large and pendulous that she looked like she was grotesquely obese. Only those who had seen her naked realized that, while heavy, the bulk of her weight was now in her breasts. Other people just thought she was fat because clothes looked shapeless on her. Jenn wondered where this protocol would go. Would her breasts hang below her knees? In her last milking, she had produced a full two gallons of milk and she found that to support this production, the professor had increased her meal supplement to eight times the original supply. It was a chore simply to down the fluid. Hitomi's breasts were now 44K shaped torpedos. Unlike Jenn, she loved her new breasts and the attention she received. She either wore tight fitting clothes with small bras or loose shirts with no bras. Jolene's friends no longer recognized her. Her large breasts were disproportionate to her tiny frame, as all of her weight gain went to her breasts. Jenn took the professor aside and, reluctantly, told him about her problems with her breasts. He thoughtfully scratched his chin and then told her. "I have an idea, but I need some thinking on it to flesh it out." The protocol again went smoothly but with a surprise. Angie had not one but four orgasms, each so powerful she nearly shook free from the harness. It was as if a dam had burst and her shouts could be heard throughout the laboratory. Now all of the women qualified for station six. "Are you committed to achieving the Z-cup dream you established for yourself?" the professor asked Jenn. "Do you want me to?" she asked him. "Oh god, yes," he told her. "I want you to get as big as possible." She looked into his eyes and smiled. "Yes, I'm committed," she told him, thinking all the while, "I love you." "Here's my idea," he told her. "We have to take the pressure off your body. You can barely support your breasts now. What I am proposing is that we keep you in your harness much of the day with your breasts hanging down freely. We'll feed you through a tube and we'll give you short breaks where we'll transport you to the bed for your sexual activities. We can even hook up a device so you can urinate and defecate without moving." The professor looked at her. "You'll be my pet and live with me. I"ll give you everything you need and together we'll make your breasts as large as possible. What do you say?" he asked her. "Will you be my pet?" Jenn paused. Her time with the professor was the happiest time of her life. She knew that if she committed to the plan, she'd never have a normal existence. But a normal existence had made her miserable. She'd never been so happy and she felt compelled to see how large her breasts could get. "I do," she told him. Station six was the best yet. The professor had invited over ninety six men, thirty-six of whom had deposited multiple loads in Jenn and twenty-four of whom had climaxed multiple times in Hitomi. Jolene was now up to sixteen men and Tracy and taken on a full twenty men without any difficulty. At first, Angie had resisted station six, but the professor had reminded her of how much progress the other girls had made. "You've nearly stalled. The sexual stimulation phase is critical to your progress," he told her. Minutes later, he was climaxing in her mouth and ass. *** After showering, the professor led Jenn to her harness. As she now weighed two hundred ninety-eight pounds, it took both Gus and the professor to fit her into her harness. She slumped into the harness as the professor hooked up the feeding machines, suction cups and special vibrators that also doubled as catheters to remove waste. Jenn's breasts hung down a good fourteen inches, flopping freely below her body. *** Day thirteen should have been, in scientific terms, a success. But it had a human cost - oh what a human cost. Jolene, slender and once an A-cup, was now a 46K, her breasts sprouting forth from her slim body. Angie had seen immediate improvement from station six and proudly showed her fellow assistants her 56K tits. Tracy had blossomed to a 46L and Hitomi was now an outrageous 49P. But when Jenn was retrieved from the machine, it was as though her mind was gone. She smiled stupidly at the professor. When spoken to, her eyes seemed to reflect some kind of recognition, but she no longer spoke. Moreover, her breasts were now a Z-cup and she could not even stand. Her breasts were so large, they drooped below her knees. The other women looked horrified. "We all knew this was a risk," the professor noted. The women sadly nodded their heads. "What do we do now?" Jolene asked. "We'll have to end the protocol," the professor noted grimly. "Man, I was just starting to grow!" Angie complained. "I got fucked in the ass for nothing!" "You came here as a 44D and you leave here as a 56K - I'd hardly say that was nothing!" the professor noted. "I wanted to be a P-Cup," she noted bitterly. "What happens to Jenn?" Hitomi asked. "I'll care for her. I'll see if I can help her recover." After taking final measurements, the women solemnly left the building. The men who were waiting were disappointed to hear that the protocol was ending. Gus and the professor put Jenn back in the harness. The professor was partly true to his word - he did continue to feed and care for Jenn. But it was hard to argue that he was trying to help her recover. He continued to apply his treatments to her, intensifying the protocol. On day 27, Harvard University officials raided the laboratory. They found Jenn in her harness, all three hundred forty pounds of her - her breasts now an outrageous 138 AAZ, massive udders that hung down nearly two feet from her body. The police were called in and the professor and Gus were arrested. Part of the incriminating evidence was the professor's extensive video collection. The final video was a scene of Jenn, laying on her side, her mammaries jutting out from her like massive cow udders, satisfying a group of four hundred men, who took turns having sex with her and ejaculating in her throat and other orifices. As the men fucked her tits, milk seeped out from her breasts, lubricating their tit fuck. The professor pet her gently as she dutifully swallowed cumblast after cumblast. The four hour orgy contained nearly 800 ejaculations and at the end of the session, Jenn lay beached on a mat, sperm dribbling out of her mouth, pussy and anus. The investigators also found in the laboratory a giant refrigerator with massive storage containers of milk. Apparently, by reconstructing the records, Jenn had advanced her milk production to eight gallons a day. To this day, Jenn remains in a mute state, though when she is shown a photo of the professor she smiles and her nipples become engorged. She is constantly milked - without this activity her breasts swell and become painful. Currently, her caretakers are evaluating the best treatment for her. The only time she appears happy is when she is engaged in sexual relations and one consideration is for her to become a sexual slave at a prison camp. The remaining women in the study all lead fulfilled lives and swear by the professor's regimen and the positive impact it's had on their lives. Jolene, now confident, runs her own business and is a millionaire several times over. Angie has married a professional basketball player and has two children and a happy and wealthy home. Tracy is an adult film star, bringing home hundreds of thousands of dollars from films and stripping. And Hitomi is the highest priced escort in North America, working two to three days each month, making in excess of twelve thousand dollars a night. Now that the prison permits conjugal visits, the women, with the exception of Angie, visit the Professor and Gus once a month and engage in torrid sexual relations, so thankful are they for the positive impact he's made in their lives. After 10 months, Gus was released for good behavior. He visited Jenn's parents and helped them with legal proceedings to claim guardianship of Jenn. Gus cares for Jenn, using the harness and protocol designed by the professor. Gus funds this operation by charging men money to have sex with Jenn and Gus and Jenn's parents split the proceeds from this service. Jenn is well cared for and seems happy. On a typical day, she has sex with 70 to 80 men, generating nearly two and half million dollars in revenue per year from john fees alone. On top of that, her website contributes another seven and one half million dollars. Jenn's milk brings in another $250,000 a year, mostly from Japanese businessmen. As a result, Gus and Jenn's parents live very comfortably. At this time, Gus is exploring the launch of a commercial operation similar to the professor's research project. The professor will be out of prison in six months; his case attracted significant news and he receives nearly four hundred letters a day from women who seek advice on breast enlargement.