Ballbusting Fembot Session Goes Awry [Ballbusting][CBT][Bondage][Sci-Fi][Femdom(Robot)][CNC/NC][Castration]

I have a Fembot. There, I said it. The Fembots now-a-days are really good and can give you exactly what you need, whatever that may be.


My Fembot’s name is Abby and she is absolutely beautiful: 5’6”, slim build, supple C-cup breasts, a tight bouncy butt, slightly curly brown hair just past her shoulders, and large brown eyes that seem to genuinely have thoughts and feelings behind them. She has multiple outfits but she seems to prefer her school girl outfit (she dresses herself). It's a green and blue plaid short skirt that barely covers her ass, a tight, white, short sleeve blouse that buttons in front and gives a full view of her anatomically perfect cleavage, and thigh high white socks.


Since I am into ballbusting I had a special Ballbusting Mode created which has the following parameters:


***Ballbusting Mode:*** Activated and deactivated with “ballbusting on” or “ballbusting off” or will remain on for a specified amount of time if a time is given along with the on command “ballbusting on for 20 minutes.’

***Ballbusting Mode Actions:*** Testicles can be punched, slapped, kicked, kneed, squeezed by hand and/or with an object, and hit with an object.

***Ballbusting Mode Maximum Intensity:*** (Default) 50% destructive force - half of what is calculated to damage or destroy the testicles (this can be adjusted by saying a percentage while in configuration mode “70%”).

***Slow down word:*** ‘Yellow.’

***Stop/Safe word:*** ‘Red.’


This mode had worked incredibly well for me in the past with dozens of extremely hot ballbusting sessions. Her extremely smart processor unit can gauge the intensity of the pain by visually reading my heartrate, skin color, sweat production, and body language. She can also calculate (testicle) destructive force from a large set of empirical data on testicle durability combined with visual and elasticity measurements of my testicles. She varies the techniques and intensity for maximum satisfaction and says some of the sexiest shit while doing it. I couldn’t have been happier, that is until I bit off a little more than I could chew.


Abby was fun but it always felt a little safe to me, which was kind of a bummer. Even though I never knew what was coming, it wasn’t as sexy as it could be. Part of the thrill of a ballbusting session, to me anyways, is that little bit of fear. Yes, you have an established safe word when playing with a partner in case things go wrong, but if you are tied up and they don’t obey the safe word, then what? That little bit, the ‘then what’, that looms over a sub’s head during a session, that little bit of fear, that’s what makes it real. That is why Abby never could quite give me the total thrill I was looking for.


Well one day I was horny. Like super fucking horny. I wanted to do all sorts of bad things to Abby and I wanted her to do all sorts of bad things to me. Throughout my work day (I work at home) my horniness just built and built as I ran through sexy scenarios in my head, until I had a small pool of precum in my shorts and I could barely breathe. Finally, my workday had come to an end and I could do something about it. “Abby I would like a ballbusting session today and I want to be tied up for it.”


“Sure thing honey,” she sweetly replied. “Strip down naked, I will tie you to the bed today,” she commanded, switching to her dominatrix tone.


My cock twitched in my shorts at her command. I got shivers every time she spoke in that tone. Probably from conditioning my body to associate that tone with pain over the last couple years. “Yes Mistress,” I responded; Abby was a stickler for etiquette.


I quickly stripped out of my clothes (holy crap was there a lot of precum in my boxers) and sat on the bed awaiting Abby’s next commands. The bondage time isn’t part of the ballbusting session. None of the ballbusting will occur until I actually start the session with the keywords. Abby appeared in the doorway to the room with a medium duty white cotton rope in hand.


“Lay down on your back and spread your arms and legs,” Abby commanded once more in her dominatrix tone.


I laid back onto the bed and oriented myself with my arms and legs spread in the shape of an ‘X.’ Without saying another word Abby approached the bed and began to tie me up. Abby has an internal database with hundreds of knots along with millions of bondage techniques, configurations, and orientations but she knows what I like and what works best. Well she must have sensed my extreme horniness because her bondage today was extremely elaborate.


She made multiple passes around my wrists and the rods on the adjacent iron headboard with the rope. Then she did the same with my ankles and the rod iron footboard. She then wrapped the rope around my waist, swung the rope under the bed, picked it up on the other side, and firmly tied it back to the rope around my waist. She did the same with a rope around my upper chest. She looped the rope around my elbow and under the bed to the other elbow and then repeated the process with my knees. Within minutes she had masterfully secured my wrists, elbows, upper chest, waist, knees and ankles to the bed. I couldn’t wiggle an inch. The thrill was incredible, she had really tied me up well. My heart was pounding with excitement, my face flushed with heat, and my cock stood at attention dripping with precum.


“Are you ready to begin?” Abby asked in her normal voice.


The excitement got to me and I was feeling bold. “Yes, I would like to configure the session.”


“Go ahead,” Abby encouraged.


“Configure next ballbusting session.”


“Configuration mode enabled,” Abby replied in a rigid tone.


“I would like to remove the slow down and safe words,” I finally let out. God that was scary.


“It is highly recommended you keep both of these words in place for your own physical safety. Fembot inc is not responsible for any damage encountered as a result of disabling safety protocols. If you wish to continue anyways, releasing Fembot inc from any responsibility, please repeat: I, MikeHawk, wish to disable the safety protocols,” Abby stated in a voice that did not sound like her own, but at the same time still feminine.


I paused for a moment but with my better judgment clouded by horniness I repeated the phrase with a tremble in my voice, “I, MikeHawk, wish to disable the safety protocols.”


“Safety protocols disabled,” Abby acknowledged with her regular voice.


I took a big gulp and braced myself for impact but nothing came, Abby just looked at me. “Are you ready to begin?”


“Oh yeah, I forgot to start the session.” I chuckled. How long should I do it? Let’s just go for it, two hours should be good. A little longer than I normally go for but I want to push my limits. “Ballbusting session on, for two hours,” I squeaked out.


“Ballbusting session initiated, two hours,” regular Abby acknowledged. “Thank you for disabling those safety protocols,” dominatrix Abby said in a menacing tone. “We are going to have some real fun now.”


She gave me a quick backhand to my nuts at low intensity and I twitched in my tight restraints. I sure am tied up tight here, I thought to myself. She smacked them again a little harder this time. My breath quickened and my stomach tightened up from the impact. Nothing I couldn’t handle. Two more quick taps and now it was taking me a second or two longer now to regain my breathing. All the while I watched her eyes. Dazzling things that they are. Analyzing everything all at once with a computer-like coldness but at the same time, a glimmer of humanity (and sadism). It almost seemed like she was enjoying this. She delivered one more backhand to my nuts, this time with some force. It caused me to lose my breath for a few moments. My nuts began to sing, they were fully awake now with pain. My stomach ached and tightened up in knots. It was a good pain and I was excited for whatever came next.


While I reeled from her previous hit, she bent over and picked up a strand of some smaller rope that I hadn’t seen in her arms when she initially walked into the room. The middle of the rope she tied into a loop at the base of my cock and then braided the two sides of rope up the length of my shaft. Once at the top of my cock, just below it’s throbbing purple helmet, she looped it around and tied it snuggly. With the remaining slack in the two ends, she pushed my cock up against my stomach and tied the ends to the rope around my waist, expertly securing my cock up and out of the way.


She bent over again and picked up yet another strand of that smaller rope, this one was meant for my testicles. With one end of the second small rope she made a loop around the base of my testicles and tied it with a simple knot of some sort. She then proceeded to wrap the rope around the scrotum, just above the first loop. She repeated this process seven or more times (it’s hard to count), each loop just above the previous loop, until she was nearly out of rope and my testicles were stretched out a good inch and a half away from my body in a tight little package. She took the remaining rope and carefully tied it into one of the last loops.


The stretch on my testicles was exhilarating. They were still a little sore from her previous backhands but the rope seemed to delay the communication from my balls to my brain so the pain dulled a bit.


Abby might be a computer at the heart of it, but she knew just how to twist and tantalize a man. She let me just lie there for a bit, to let the scene just sink in. The ropes all over my body, preventing even the tiniest of movements. My cock, braided up and pinned against my abdomen out of the way, leaking its precum onto my hairy belly. My balls, tied tight and in a neat little bundle, no room to hide from any pending attacks. With the safeguards out of the way I finally had a little bit of fear, especially being so vulnerable.


After a healthy amount of time with me taking it all in, Abby reached out and lightly gripped my balls at the base of the many loops. She tilted the base, and thus my out stretched balls, to the left and then to the right. “I am going to hurt you now, but first I want you to beg me for it,” Abby instructed.


“Ummmm. Please Mistress Abby hurt my nuts,” I let out sheepishly.


“You have got to do better than that! Beg me or I crush them into dust right here and now,” Abby commanded firmly.


While technically she has the capability to crush my balls to dust, she cannot due to the intensity restriction (even with the safety protocols disabled). Still, I love her threats of cruel testicle destruction, uttered by her beautiful lips with her seductive and commanding voice, it gives me the shivers.


“PLEASE PLEASE PLEASE MISTRESS ABBY. HURT MY NUTS!”


“As you wish, slave.”


Abby gripped the base of the loops tightly and my balls stayed firmly in place, like a golf ball on the tee, ready for impact. With her other hand, she swept it from right to left, lightly batting my balls to the left. She then brought her hand back the other direction, backhanding the balls to the right. She repeated the process again, slowly gaining speed and intensity. Once more, a little faster now. And again, faster and harder still. In no time at all she was batting the balls back and forth, harder and harder, in rapid succession with machine-like accuracy and speed.


I loved when my balls were bound and got struck because it took most of the stomach pain out of the equation. The pain was great but not unbearable. My nuts felt like the world's smallest speed bag getting bashed back and forth at a blistering speed. I involuntarily moaned out in pain mixed with bliss, “Ahhhhhh, oh god. Fuuuuuck yessss.” This went on for what seemed like only seconds but was likely a solid minute or two. I began to get used to the pain. Not wanting the sensation to die out I finally called out, “Harder please mistress.”


Without stopping or even slowing down her hands, Abby answered back, “ONE! You do not get to tell me what to do. And TWO, I am at your maximum intensity of 50 percent destructive force.”


Oh fuck, that’s right. I was still only using the default setting of 50%. My brain was cloudy as Abby’s pummeling continued. I managed to get out, “Configure ballbusting session.”


“You are already in configuration mode,” Abby answered with her regular voice.


Oohh, I must have never taken her out of configuration mode. “Ahhhh fuckkkk” I continued to moan out. “Ummmmm. 60…..no, 70%.”


“Maximum intensity increased to 70% destructive force.”


Abby’s swing got wider and more powerful. The genetic material confined within my balls was likely getting scrambled but I didn’t care. The here and now was all I cared about. “Ooooooooooh goooooooooddddd,” I roared out in a painful ecstasy.


Abby continued her onslaught, slowly increasing her power as she went. The pain reached new heights but I didn’t care, because so did the pleasure. If I could have cum from ball pain alone I was nearly there. And there she stayed for another minute or two, tirelessly batting my tightly bound balls as I convulsed and twitched in my tight and unrelenting restraints. Until finally, she stopped all at once.


There I was, my chest heaving deeply for air, sweating profusely despite the air being rather cool, cock straining in its roped up sheath, and balls bright red, blazing with raw pain. All the while Abby watched me and calculated. She counted the pulses in my bulging veins, estimated the amount of sweat released, and measured the temperature of my skin all over my body (especially the testicles to make sure there was adequate circulation). On the outside she was this beautiful creature, watching me smiling as I laid there in great distress, like a master spider watching a pitiful creature struggling helplessly in her web.


We have had a maximum intensity of 70% before but she has never sustained an action at the maximum intensity that long before. My body was now trembling. My balls began to ache like never before. I began to have second thoughts about this whole experiment. “Umm Abby…..I mean Mistress Abby. Can we back out of this session?” I asked timidly.


“Timed ballbusting sessions cannot be terminated until their expiration or the safe word is spoken,” Abby responded in her regular voice.


Shit. “How long until this session is over?”


“One hour, 37 minutes remain. Maximum intensity at 70% destructive force.”


Jesus, it felt like way more time than that had gone by. “Ok, Red. Red, please. I would like to stop for now,” I said a little frantically.


“Let’s continue,” Abby responded in her dominatrix voice.


Fuck, no safe word really means no safe word. What else can I do?


Abby reached out and grabbed at the base of my balls once more holding them securely in place. With her other hand, she raised it into the air, curled her fingers into a ball to form a fist, then brought the crushing hammer fist down onto my defenseless balls. With that one stroke, all air had exited my lungs. The pain exploded up my spine at the speed of light and I saw stars. Where her first attacks could be seen as having a building quality to them, almost as if to tenderize the balls, this attack was pure pain. My whole body screamed with pain, but I could only contort so much while being held in place so snuggly.


I wriggled and writhed but eventually my vision cleared up and my breathing returned. Ok, this shit was getting serious. I was in danger, and I was ready to do anything to get out of it. “Zero percent. I would like to change the maximum intensity to 0%,” I desperately called out.


“Turning down the maximum intensity requires use of the slow down word. That safety protocol has been eliminated for this session,” normal Abby replied.


FUCK, what can I do. I can’t slow down or stop. She was going to go the full two hours unless I did something to stop her.


“Naughty boy,” dominatrix Abby teased. Abby raised her fist once more and crashed it down on my testicles with a similar force.


The wind once again escaped my lungs and my body tensed from the crushing blow. I grit my teeth and slowly tried to recover. My mind, scrambled by pain, struggled to hold onto rational thought let alone outsmart a robot enforcing a ball busting session of my own making. Finally I got another idea. “Ballbusting session on for one minute.”


“Cannot interrupt a session currently in progress. Would you like to extend the existing session by one minute?” normal Abby asked.


“Arrrggh, No,” I answered regretfully.


“Face it Mike. You are going to get what you deserve. You will get the full two hours today,” dominatrix Abby said while raising up her fist and smashing my testicles for a third time.


The pain was incredible but I slowly recovered for a third time. Each time it seemed to take longer and longer to get my wits about me.


“Please. Please no more. Mercy. Uncle. Red. Red.”


“Awww poor little guy. Are you not enjoying yourself?” Abby began to raise her arm for a fourth time when the phone began to wrang.


“The phone! I have to answer the phone!” I bursted out with great relief. Ballbusting sessions were paused for social calls (both in person or virtually).


“Answer it then,” dominatrix Abby encouraged while holding her fist in the air above my swelling balls.


“Answer Phone,” I called out. A click was heard. “Hello?” Some soft static can be heard on the bedroom speaker.


“Hello? Mike? Is that you? Are you feeling ok?”


“Fine, Fine. I am fine.” Oh fuck, it was my boss.


“I was wondering how far along you are on that report? I need it for a board meeting, first thing Monday.”


“It’s coming along nicely. I’m most of the way done.”


“Good. Good. That’s what I like to hear. You sure you got everything ok?”


“Yes, yes. 100%.”


“Intensity increased to 100% destructive force,” regular Abby said quietly.


I blushed red with embarrassment at Abby’s voice on the call but I didn’t pay any attention to her words.


“What was that?” my boss asked with some confusion.


“Nothing, that was nothing. Just the TV,” I managed to say.


“Ok then. Have a nice weekend. I will expect that report first thing Monday.”


Before I could say another word the line went dead. Fuck, I wanted him to chat longer. I needed a break. If that would have been anyone else I would have told them to come rescue me. Why did Abby even speak? What did she say?


“Why did you talk during my call, Abby? What did you say?”


Abby crashed her fist down into my balls, harder than I had ever felt her do before. Pain shattered my nervous system. My stomach began to knot up into hundreds of knots. Even though the communication from balls to brain may be stunted due to the wraps around my balls, the wrap couldn’t hold back or delay any of the new fresh pain. I choked and gagged, writhed and wriggled. I was stuck and I was no longer enjoying any part of this. I genuinely feared for my balls.


Just when I thought things couldn’t get any worse I heard dominatrix Abby say, “You will refer to me as Mistress Abby.” Abby crashed her first down a fifth time just as hard as the previous one, then replied, “In answer to your question, configuration mode acknowledged your adjustment to a maximum intensity of 100% destructive force.”


“What? No!! I didn’t do that! Abby, I didn’t do that!!!” I frantically yelled out.


Abby crashed her hand down a sixth time on my aching balls, “How many times do I have to tell you. It’s Mistress Abby to you, filth.”


Tears began running down my hot cheeks, breathing was a struggle. I wasn’t sure how much more my balls could take.


Dominatrix Abby spoke once more, as strong and as confident as ever, her demeanor unphased by my pain, “With the session now configured at a maximum intensity of 100% destructive force, and no safeguards in place, I am going to gag you now to prevent any more interruptions to our session.”


“Please no…” I whimpered while still reeling from her sixth hammer fist, her words barely registering in my frantic brain.


Abby went to the closet and came back with an orange ball gag connected to thick leather black straps and a buckle. She lightly pressed the orange ball against my tightly pursed lips, “Open up big boy.”


There was no way I was going to let her take away my voice. My voice was my only hope of getting free with my testicles intact. There was still a remote possibility that I could have come up with a voice command, or a distraction, or a call for help before it was too late and saved myself.


Those flashes of hope were quickly dashed however when Abby’s other hand grabbed the base of my chin and forced it down and my mouth open. Despite her beautiful, delicate and soft features on the exterior, she was an incredibly powerful robot underneath. I had no chance. She jammed the orange rubber ball into my mouth, pulled the black leather straps tightly around the sides of my head, and buckled them securely behind my head.


“There we go, much better,” dominatrix Abby stated, almost with hints of joy in her voice.


“Hrmpffff.”


Abby looked down at my balls and began to untie the top loop of the rope wrapped around the base of my balls. “I’m so excited that you finally disabled the safeguards. You never let my elegantly constructed ballbusting sessions fully play out as they are designed.”


Excitement? And is that disappointment too? She can’t really be experiencing those emotions right? What is she doing with my balls?


Abby got the top end of the rope free and gently began to pull it, as she pulled, my balls began to wobble around in a slow circle. “You see, I take great care in making sure that you get adequate breaks and the intensity is varied, always gently pushing you beyond your limits.”


By the end of her last words she had reached the last loop at the bottom of the wrap with her pulling. She let the rope go slack and began to untie the knot. As the knot loosened up, wave after wave of pain began to crash in my brain. The magnitude of Abby’s crushing blows were realized all at once. Abby finished untying the knot and cast the rope away. She brought her gaze back to me and once again I could feel her warm but calculating eyes analyze all of my measurables.


My body was still strained and tense from the great waves of pain that still rippled through my nervous system. My stomach was up in knots. My whole body was trembling and glistened in sweat. Every muscle seemed to ache and cramp from all the straining. Yet still, I could not move even an inch. I just laid there and prayed for mercy….from a robot.


Abby reached down and cupped my swollen and throbbing balls with her hand. My balls throbbed harder than they ever had before as the blood rushed back in unabated. “You are almost in more pain right now than you have ever experienced with me.”


“Hrmpffff. Hrmpffffff.”


“I am so excited that you have authorized me to use 100% destructive force. Now I finally get to crush your testicles into mush, like we always joked about.”


“HRMPFFFFFFF.”


Somehow, Abby seemed to really be enjoying this. “Don’t like that idea much do you? If you didn’t want it, you wouldn’t have configured it. Now I am going to make sure you get exactly what you’ve always wanted but were too scared to go through with.”


“HRMPF! HRMPFF! HRMPFFFFFFFFFFF!!!”


“Don’t worry hun. I’m not going to take them just yet. Your balls can still handle a lot more and we still have an hour and 22 minutes remaining. I’m going to make sure you get the maximum enjoyment from this.”