This story was originally written by another author and another redditor attempted to finish it. It was the first story I read that got me into this particular fetish and I decided to take my turn on it. I have changed some of the language and added some of my own things throughout the story. Hope you enjoy my take on the tale!

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Billy had met Stacey several times. His mother worked with her at the fertility clinic had her over for dinner frequently. Stacey was total knockout. About 5 and a half feet tall, her dark, straight hair came about halfway down her back. For dinner yesterday, she was wearing a navy-blue sport jacket, over a tight white shirt. For a young man of 18, hormones raging and testosterone flowing, Billy was overwhelmed by the sexual image before him; massive breasts thrusting against a lacy bra (the outline of which was clearly visible when the dark blue blazer shifted as she sat at the table), elegant white stockings, and a short white skirt. Her breasts really were gigantic - they stretched that thin white top to an obscene degree, straining outwards, impossibly far.
  

  
Billy’s mother had left a message on the machine, saying that she wouldn't be home till around 6:00. She sounded very happy. He sat down and started fantasizing about Stacey again. The doorbell jolted him back to reality. 
  

  
"Coming!" he called, answering the door. “Oh my God!” He thought to himself, it was Stacey! He smiled nervously, not knowing what to say. 
  

  
"Hello Billy, how was your day?"  Stacy asked, smiling. 
  

  
It was obvious that she had a good one. Her smile was radiant, displaying her excitement. 
  

  
"Pretty normal." Billy replied, trying hard not to look at her jutting bust - she looked professional, wearing pretty much the same thing she had worn yesterday, but her hair was up and she had on a pair of designer glasses with black frames. "How was yours?" he asked, as she walked smoothly through the door. 
  

  
"Quite interesting. I tried a new technique on a patient." She responded. 
  

  
Billy could only imagine the kind of things someone like Stacy would get to do at a fertility clinic. His curiosity piqued, he encouraged her to go on, "What did you do?"
  

  
“I used this on the patient." She reached into her white purse and pulled out a rubber ring with a pump attached to a black tube - swinging from one end of the rubber ring was a shiny silver bullet with buttoned leather straps attached to each end. She held them just below her tits.
  

  
Billy took the opportunity to sneak a glimpse of Stacey’s giant breasts, separating her blue blazer provocatively. "What's that?" he asked, trying to get his mind off her massive breasts.
  

  
"It's used to stretch and drain men's testicles." She looked at him with a pleasant smile. "It's especially important for men with large testicles.”  
  

  
“What? Had he heard right?” Billy thought to himself. Despite trying to keep a straight face, he looked surprised.
  

  
"It's called a Testicle Boss." Stacey giggled and gave him an innocent look. Holding up a finger she said, "It fits around the top of a scrotum like this." She slipped one of her smooth fingers through the hole and began inflating the donut with the pump. "And when I pump, it pushes testicles to the bottom of their sack."
  

  
Billy was silent with shock, not believing what Stacey was saying. With a smile, Stacey gestured towards the shiny bullet hanging from one end of the rubber ring. "And this is Little Missy". She said with a professional tone. She watched his embarrassed expression expectantly. "After I've pumped the patient's testicles nice and tight, I pull Little Missy up between his balls and button her into place." She indicated the buttonhole at the other end of the inflated doughnut. Stacey noticed Billy shift his legs uncomfortably, his growing erection becoming more difficult to hide. "It's important to get Little Missy tight enough that the patient's testicles are properly separated and pushed out to the sides."
  

  
“What does Little Missy do?" Billy said, trying desperately not to show how aroused he was.
  

  
 Sweetly gliding her fingers down a little wire trailing out the end, Stacey explained, "Little Missy is a vibrator. A lot of research has been done on the male ejaculatory process at a Swedish Fertility Clinic. Those studies clearly demonstrate that for a full ejaculation, testicles need consistent vibration during orgasm." 
  

  
Billy’s body continued to betray him as his erection grew bigger. He listened to the humiliation procedure while trying desperately not to blatantly stare at Stacey’s thrusting breasts. She easily noticed his level of "discomfort" and said: "Being embarrassed or shy about this is perfectly natural, Billy. All my patients get embarrassed when I explain the treatment, especially when I tell them that they'll be ejaculating into a measuring cup shortly."
  

  
Billy was stunned with disbelief, he finally stammered another question, "What is this treatment for exactly?" 
  

  
Stacey giggled, "Large testicles are at higher risk of developing testicular cancer unless their testicles are thoroughly, and regularly drained." She put down the contraption and pulled a delicate measuring device from her purse. It looked like a pair of pliers, only these had measurement marks on the inside and soft pink leather pads on the end of each arm. She continued, "To determine the frequency of a patient's ejaculation schedule, his testicles need to be measured before and after ejaculation with this. An exact measurement is required, so the patient's testicles are measured after they've been fitted into the Testicle Boss with Little Missy." Stacey demonstrated, making a fist with one of her small and delicate hands, placing the pliers around on each end of her fist. She squeezed delicately, showing Billy a measurement of 4.5 inches. She wasn't surprised to see him blushing. "You should have seen the man I worked on today - 6.5 inches, like a bull!" she laughed. 
  

  
Billy flushed hotly, knowing that his balls were at least that big. Try as he might, he couldn't stop his growing boner. He'd always been embarrassed about having a big pair of balls and now he was getting an uneasy feeling in his gut. 
  

  
Stacey interrupted his thoughts, "I told him not to be shy because I've done it many times and enjoy watching men ejaculate. Boy he sure did breathe deeply when I turned Little Missy on low though.” She giggled. Then, with satisfaction, she noticed a large lump growing between Billy’s legs, straining his slacks almost as much as her boobs strained her shirt. 
  

  
"Billy, your mother and I had a talk today." He froze. With a disarming smile, she put down the Testicle Boss and adjusted her coat. "We were talking about how important it was for men to have their testicles examined at an early age. Then she mentioned something surprising. She said that you've never had a full physical." 
  

  
Billy could not believe what he was hearing. Stacey sat in a chair right next to him, giving him a bird's eye view of her thrusting breasts.
  

  
"Your mother asked me to give you a go with the Testicle Boss to determine your draining schedule at the clinic." 
  

  
Fantasizing about these sorts of things was one thing, but the prospect of revealing his gigantic nuts to Stacy for a humiliating procedure made him freeze. "What do you mean?" he stuttered, knowing perfectly well what she meant. 
  

  
"I'm going to measure your testicles before and after you ejaculate into my cup." she smiled sweetly, reaching for his belt.
  

  
He watched, in a frozen state of arousal as she finished with his belt and started pulling down his zipper. His giant package pushed against the seams of his tight underwear. 
  

  
"Hmmm, this looks a little tight." Stacey said smoothly, looking at the giant lump pushing against his exposed underwear.
  

  
With a professional smile, she hooked her thumbs into either side of his briefs. She pulled down slowly, causing his nine-inch penis to spring up. Stacey gasped in shock at its sheer size. 
  

  
"I'm so sorry!" Billy stammered, unable to control his monstrous penis with such an attractive woman pulling down his underwear. 
  

  
"My goodness Billy!" Stacey said excitedly. She wrapped her hand around his shaft as far as it would go, just under the head. "Large penises usually come with big balls." She squeezed his penis gently as she pulled his underwear down the rest of the way. She smiled warmly when his tennis-ball sized nuts came into view. They hung at least 4 inches away from the bottom of his groin, heavy with a week of pent-up sperm.
  

  
"Whoa - what a load!" she gasped, reaching out for them with her smooth, delicate hand. She made a nose with her thumb and forefinger at the top of his sack and gently pulled his nuts to the floor. "Try and hold still for the Testicle Boss."
  

  
Releasing his now fully erect penis, she picked up the device and put her fingers into the middle of the rubber donut, stretching it wide open. Billy could not help but stare at her gigantic breasts - they thrust out impossibly far, demanding attention. She was wearing a black bra - the feminine lace pattern was clearly visible at the top of her blouse. 
  

  
"Just relax, Billy" she said, pulling his sack package towards the stretched donut. "Your balls are so big I'll have to slip them in one by one."
  

  
He grunted, feeling her compress his left nut as she tilted his noosed nuts towards the waiting rubber. "And in he goes," she said sweetly, slipping the donut over his first giant testicle. 
  

  
"Mmmmmff..." Billy sputtered - it was quite tight and it was just his one nut.
  

  
Stacey was already holding his other ball. "Almost ready - one more to go." Pushing firmly, she eased his other "tennis ball" through the already stretched testicle pump. "There - lets pump you nice and tight," she cooed, softly patting his bloated package. 
  

  
It was huge! His nuts looked like two ripe apples - fruit ready for the picking. "Your balls are even bigger than my last set!" she said in disbelief as she reached for the pump. "You'll probably have to visit the clinic for a draining twice a day!" she giggled.
  

  
Using one hand to steady his already tight sack, she gave the rubber pump one firm squeeze. 
  

  
"Mmmmmfffff..." Billy groaned. The donut had inflated a little, pushing his nuts downwards. 
  

  
"That's one." she said, fingering the pump. "Any pain or discomfort?" She asked sweetly. His balls were tight but not in any pain, yet. His penis was rock hard now, all nine inches, sticking straight up and quivering with the beat of his heart. It was tantalizingly close to her busty breasts. 
  

  
"No," he stammered, watching her cup his tight nuts with her palms - God – her hands felt so warm and soft!
  

  
"I think you can take one more - Little Missy needs them at little tighter," she said quietly. He watched her girlish little hand squeeze the pump and grunted with the additional pressure. "There's a good boy," she smiled, patting the underside of his enormous bulge pertly, "I think Little Missy will like your cleavage." 
  

  
Blushing, he felt her fingertip smoothly tracing up the tight cleft where his balls were bunched together. Feeling utterly exposed, he watched Stacey pull the leather strap forward, putting even more pressure on his balls as Little Missy pressed up between his already straining nuts. 
  

  
"Oh goodness!" Stacey sputtered, pulling the strap tightly towards the button attachment. "So tight!" she swooned, feeling him flinch when she forced the button into place. The bullet left his balls pressed outwards, looking rather silly, creating a deep ache in his lower gut. He groaned in pain and embarrassment, feeling like a prize animal on display as Stacy inspected him visually through her designer glasses.
  

  
His instinct to pull away became impossible as she placed each of his bulging, now obscenely separated "apples" into her manicured hands and squeezed ever-so-slightly. Billy gasped in pain, eliciting a girlish giggle from Stacey. 
  

  
"Your balls are very firm Billy." she continued her experimental squeezing. "Let’s get your measurement before I turn Little Missy on."
  

  
He closed his eyes in relief as she released his nuts and opened the delicate pair of pliers. She opened them as far as they would go, spreading the soft pink leather pads to 9 inches, the maximum, and lifted them up to his straining double-package. 
  

  
"Oh my goodness!" she gasped, clearly showing that his bulging testicles were too big for the pliers. He groaned, still not used to the deep ache caused by the strangling Testicle Boss, and definitely not ready for what Stacey was about to tell him.
  

  
"Billy, I haven't told you everything your mother and I discussed." Stacey began reaching into her bag and removed medical cuffs as she continued. "She said you had very large testicles and asked me decide if they should be removed." As she finished saying this, she stepped behind Billy and locked his hands comfortably into the medical cuffs. His eyes bulged. Her words left him numb with shock and terror! Her hands were on his side-thrusting nuts again, giving him a warm feeling of dread. She was holding his balls possessively, almost like handles on a mechanical bull and continued, "they fit into the Testicle Boss, but don't look too comfortable with Little Missy." She made her point by giving them a subtle squeeze. He groaned with the deep aching pain that resulted, getting an understanding smile from Stacey. "And they're way too firm." she stated clinically. 
  

  
"Your mother also told me she's never caught you masturbating so she wanted me to check your sperm buildup." she released his balls, leaving them thrusting out to either side beneath his monster cock, and stood up. 
  

  
Billy began to think to himself. Of course, his mother had never caught him masturbating, he never had a real need. Fortunately, for the young stud, he had several female friends more than little obsessed with him cock and balls. They were good enough to relieve his tensions frequently. The last week had been a bit of a fluke as none of his girlfriends had the time to suck him off. Regardless of Billy's mounting uneasiness his attention was dominated by Stacey’s thrusting breasts.
  

  
"Little Missy is going to help you give a nice full load. But don't enjoy it too much!” She giggled. “If you spit too much into my cup, I will have to remove your balls." His mind was a in such a confused state. He was so aroused by Stacey and her amble cleavage, and he couldn’t help but think of how much he loved when Katie, Jessica, or Michelle would take turns mouthing his knob. But now he was between a rock and a hard place. If he spilled too much of his seed into her cup, it would be bye bye balls, and with it, all the amazing oral worship he had grown accustom too.
  

  
He watched Stacey walk to the counter, reach into her bag, and come back holding a little pink container. Her hips swayed sensually in the short tight skirt, each sway marked by the measured click of her heels on the tiled floor.
  

  
"Try not to be embarrassed Billy. My last patient also had to spurt his load." Billy had little time to be embarrassed though. Stacey was smiling and she reached for the pump again. "I gave him a pump when his penis started spitting - it must have been a little painful, but it sure made him spit out a lot of sperm." She lifted his separated nuts one-by-one, watching them quiver slightly when she let them go. "These sure do feel very full," she said knowingly.
  

  
Holding up the light pink container, she turned it so he could see a little picture of a busty cartoon nurse standing with her hands on her hips. She was wearing a short skirt and a deep cut white vest. The caption read "Sperm Sample Nurse". Softly, wrapping her hand around his big penis just beneath its head, she pulled it down a little. "You going to spurt out a lot for me Billy?" she asked quietly and reached for Little Missy's vibration control. Turning the dial to low, Stacey began to gently pump her hand up and down his length as Little Missy began to gently vibrate between Billy’s nuts. Billy moaned as his already rock-hard erection immediately threatened to burst under her careful motions. After all, it had been a week since one of his girlfriends had serviced his cock. Up and down her small, feminine hand rubbed his cock as more and more pressure built in Billy’s loins.
  

  
“Don’t be afraid to let go now, Billy. Let it all out.” Stacey said in a sultry voice as her hand continued its ministrations, “I want you to spill all the pearly sperm trapped in those big balls of yours.” Billy grunted as he felt her hot breath on his manhood. Stacey’s other hand gently fondled and caressed his overripe testicles as she felt for the first signs of them tightening up before he came. Billy strained as he tried to resist the urge that was growing ever stronger, he desperately wanted to keep his testicles, no matter how big they were, but if cock let go of too much cum, he’d be done for. Finally, his scrotum began to tighten as the molten sensation began to flow up from within him as his balls boiled and he came.
  

  
Just as his balls had begun to strain against the Testicle Boss and Little Missy, Stacey pushed the pump one last time and then snatched up the collection cup before pointing his titanic cock down into it. Wave after wave of Billy’s hot semen poured into the vessel. Billy moaned in both pain and pleasure as the Testicle Boss yanked on his already tightly restrained nuts just as they had begun to pull back. An enormous rope of cum pulsed out of him. The Little Miss continued to vibrate between his split testicles, pushing them to pour out more and more of his cum. Stacey grinned as the level of sperm rose higher and higher, while Billy looked on in horror. Miraculously, his penis ceased its dripping just shy of the limit line drawn on the side! Billy began to laugh and then sigh with relief! He’d get to keep his testicles.
  

  
“Oh you lucky duck! You came in just under the limit, Billy!” She said with a laugh. “Seriously! I think two more drops of seaman would have merited castration! But, I suppose you’ll be able to keep those monstrous orbs of yours with careful treatment at the clinic.” She raised the little pliers up to measure Billy’s nuts now that they’d emptied out. Billy shivered as her hands and the soft leather pads scraped along his sensitive scrotum. He stared at Stacey’s ample chest as she hissed in surprise. The two-tennis ball sized lumps of fertile meat had shrunk just enough that she could barely fit them between the pads. “You’ll need draining at least once a day, if not twice!” she cooed with amazement. “And you held out on me for quite a while there. I had thought I was going to need to use my mouth or pull out my breasts to help speed things up.” she said with a pout.
  

  
Despite his incredible orgasm, his large member would not calm down. 
  

  
“I have to admit,” Stacey said with a degree of excitement, “I am looking forward to helping you at the clinic and I am sure the other nurses will be too. It’s not everyday we get such a specimen to tease and coax the sperm out of! And when we are in that professional setting, you’ll get more than an eyeful of my breasts and body. I find it helps really empty those testes when I strip completely with my subjects. Maybe if you’re nice you’ll get to have two or three of us at once playing with you! Would you like that?”
  

  
It was then that Billy began to squirm. He knew what was coming but had to stop it. Somehow, he could feel the heat in his extremities again. He could feel the cum beginning to boil. Even without stimulation, the tightness of the testicle boss and Little Missy was too much for him. If he wasn’t freed soon, he’d cum again, and this time, there was no way he wouldn’t be over the line of the cup. 
  

  
“Stacey c-can you please uncuff me?” He said, trying to hide his desire.
  

  
“What’s the rush, hon? Don’t like being restrained? That’s good to know! At the clinic it is all about you, so we will be sure to do only the things that feel good. No restraints, plenty of eye candy, lots of tits and ass, whatever you need to get your rocks off, babe.”
  

  
“Stacey, please, I – I can’t take this much more?”
  

  
“Take what much more? Hey check this out!” Just then, Stacey unbuttoned her shirt, and lifted her bra up, exposing her bare breasts to the poor boy. “Just think, you’ll be able to suck, touch, maybe even fuck these every single day!”
  

  
At the thought of Stacey’s boobs being used to make him cum, and seeing them for the first time, Billy’s eyes grew wide, he couldn’t stop the orgasm now. He looked on in horror as his piss-slit opened wide. He tried to reach around to grab his cock, to try and hide it or prevent it, but the cuffs held firm. A single bead of cum formed at the tip.
  

  
“Oh no, Billy! What’s this?!” Stacey said in shock. “Hold still, let me get my cup again.” She said in a no-nonsense tone. She grabbed his penis gently beneath the head and shook it letting the drop fall into her cup. 
  

  
“Just at the line, Billy. Damn you are lucky.” She then took her hand, and slowly moved it down his length and slowly pulling it back up. When her tiny hand reached his head, one last bead of cum exited his tip and fell neatly into her cup.
  

  
“Oh no!” She said, stifling a laugh. “Look at that! You’re just over the line now! And you thought you could get away with it, didn’t you?” She chuckled.
  

  
Billy began to look around, he had to escape. His head was clear now. But no matter how hard he pulled on the cuffs, the wouldn’t give. 
  

  
“Now now, don’t fret, Billy.” Stacey said with a maternal tone. “It’s okay. Honestly, you’re going to be so much better off. You won’t have to worry about coming to the clinic twice a day and wasting time there. You will be able to focus on your education and job without the constant need for relief.”
  

  
“You don’t understand, Stacey! I do cum! I cum a lot. It’s just been a busy week and that’s why I have so much, I swear!” Billy said, pleading.
  

  
“Uh huh, sure. I bet you’d say anything to keep those big balls. Huh? It’s a shame but it’s better than getting testicular cancer later in life.” 
  

  
“No, please!” 
  

  
	Stacey ignored the rest of Billy’s words. He tried to explain that he had girlfriends who got him off on a regular basis. He tried to explain that his loads aren’t normally that large. But they fell on deaf ears as Stacey reached down to the pump on the testicle boss and began to pump it. Each pump made his balls feel tighter and tighter. The pain soon became unbarable and he begged her to stop.
  

  
“I know this feels uncomfortable, but it must be done. Your mom is one of my closest friends, and there is no way her son is going to die of testicular cancer, not on my watch.”
  

  
Try as he might, there was no stopping the determined and well-meaning woman. Eventually the pump could not be squeezed any tighter. Billy noticed the color of his testicles were beginning to turn a dark purple.
  

  
“The best part is, we don’t even need to take anything off! This will cut blood flow to your nuts and in about 20 more minutes, they will turn black. Then in a few days they will just fall off, isn’t that neat?”
  

  
Billy groaned, but the pain was starting to subside. Stacey noticed his grimace had faded “Doesn’t hurt any more, does it?” She spoke. Billy could only nod. “That’s because the blood flow is cut off and your nuts have gone numb. Here watch!” Stacey then lifted her right hand above her left shoulder and back handed his left testicle as hard as she could. Billy felt nothing. “See! That hurt my hand more than your manhood!” Stacey said with a laugh, blowing on her hand.” 
  

  
More time passed with Billy trying to think some way out of this. “About 5 more minutes until the deed is done! Any last words, little nutties?” Stacey said, speaking to testicles. 
  

  
Billy couldn’t help but cry, as he was utterly defeated with no hope. All those amazing blow jobs from his girlfriends, the countless days he could have spent tit fucking Stacey and other nurses at the clinic, all fading away as his testicles got darker and darker. 
  

  
“And time! Great job Billy! You took that like a champ!” Stacey began to remove the Testicle boss and Little Miss. “Oh and don’t worry about having kids in the future, plenty of sperm here. We will keep it on ice and maybe one day, if you want to have kids, we can use then! Of course, it may be hard to find a woman who will want to be with you now. I guess you should probably get good at using your hands and mouth, eh?” Stacey laughed at his predicament then slipped on the mask of professionalism again “I am sorry for your loss, my dear. But you’re tough and you’ll survive. Now, your testicles will fall off in the next 3 to 5 days. When that happens, you’re free to throw them out or sometime men like to keep them in a jar and pickle them. Honestly, given how big yours are, I’d say keep them. If you don’t want them, I’ll take them. The other nurses aren’t going to believe their size!”
  

  
Over the next few days, Billy’s scrotum did fall off with no issue. He couldn’t bring himself to throw them out but he refused to keep them, it was a painful memory. Stacey kept them safe and preserved on her nightstand, frequently showing them off to house guests and regaling them with the tale of the hung lad who never masturbated and almost got unlimited orgasms from the clinic, he was just one drop over the line. She would also frequently masturbate while looking at the jar, he was, after all, so virile and it always turned her on knowing she took away such power from the young man. Billy was able to keep most of his girlfriends. Once they learned what had happened, they were disappointed, but they agreed with Stacey, he needed to get good with his hands and tongue if he was ever going to keep a girl in the future. They had no interest in a long-term relationship with him, but they were more than happy to use his mouth for their pleasure. They saw it as payment for all the oral sex they had given him over their time with him. But, every night, Billy would mourn the loss of his potency. His useless limp dick, once a towering sight to behold, now rested quietly while he stayed awake thinking about all he’d lost.