I asked my sister to train my balls!

It was Sunday evening when i found my younger sister Jess watching a wrestling match at the television. She'd made herself some dinner and now she was sitting at the table eating and staring intensely at the screen. It seemed that she didn't even notice i was there.

"Seriously Jess? Do you like wrestling?"
I asked sounding confused by the situation. She'd never been into this kind of things.

She looked at me and blushed. "I was just zapping... There is nothing else to see on television. If you want there is meat in the oven" she said pretending to be at ease as her eyes moved back on the screen.

I took me a while to understand that she didn't care for the match but the two muscular wrestlers with their bare chest and their tight fighting shorts were kinda interesting for a girl like Jess.

"I see!" i smirked mischievously. "You're just watching the men!" teasing her it was something i couldn't help.

"What? No! Mind your business... Jerk!"
She seemed to be troubled now that i'd spotted her.

"There is nothing wrong with it little sis. Just admit it!" i mocked and went to the kitchen counter. Jess didn't answer but her eyes were now on her dish as if watching the television was too embarrassing. I made myself a plate of meat and salad.

"You're just envy because they have muscles and you don't!" Jess suddenly fired back. "Even i have more muscles than you do"

"Oh zip it!" she really knew what button to push to get on my nerves. I've always been insecure for my appearance. I wasn't that skinny but despite i was twenty years old growing muscles seemed to be something impossibile for me.
"I have more than you"

"Sure...i bet i could easily owerpower you in a wrestiling match!"

"That's impossible! A woman can't defeat a man because men have more muscle!"

"Men, women... The stronger sex... You're so naive big bro!"

I sat at the table as Jess attention moved from me to the screen. Now she was staring again at the television with no embarrassment at all.

"You know Tom? There is actually something that men has and women don't"

"I know what and it's muscles!"

"Is more like... A weak spot ahaha!"
Jess bursted out laughing at her own joke.

"Cut it out... We have no weak spot! Don't know what you're talking about"
I was growing discomfort because i knew what she was suggesting and she digged in my discomfort.

"The Maracas... The two amicos... Itchy and scratchy! Squeeze, squeeze and the man pass out!" she laughed a way too much at her own silliness.

"If we had a wrestling match you'll be the one you pass out! Squeeze you ass!"

"Let's have one!"

"What?"

"You heard me. Let's have a wrestling match. Me against your muscles... Or rather me against your family jewels!"

I couldn't possibly refuse to wrestle at that point. Not after declaring that men have more muscles and no weak spots. We agreed to meet in the basement after dinner.

We didn't talk anymore for the rest of the time we spent at the table. There was an odd tension in the air. Jess offered to clean the kitchen and sent me in the basement. She told me to set the ring and wait for her. I don't even know what she meant with "set the ring".

I went in the basement and moved a couple of chairs to make some space for our match. Jess was taking forever to clean the dishes. I thought she had chicken out when she finally reached me.

As I turned around, my jaw dropped. Jess had changed into a tight, lime-green sports bra and a pair of black shorts that barely covered her thighs. The sight of her in that outfit was a mix of surprise and embarrassment for me.

"Come on Tom. Let's see what you are made off. What your squishy balls are made off"

Jess was smiling. She knew that i was distracted by her attire. She took her sweet time adjusting her sports bra making sure that i couldn't keep my eyes away from her chest. She was trying to play with my mind.

"Ready?" She asked with a wink. I nodded still stunned by what was happening.

The match began with us in a classic wrestling stance, hands up and ready to grapple. Jess lunged at me, and I was quick to react, catching her in a bear hug. She squirmed in my grip. My arms were tight around her, and she couldn't break free.

We stumbled around the makeshift ring. I could see the determination in my sister's eyes. She was taking this seriously. She managed to slip out of my hold and took me down with a swift leg trip, landing on top of me with surprising force.

"Nice move, sis," I said, trying to keep the surprise out of my voice. "You must have watched those muscled guys for quite a long time!"

"Thanks, I've watched them closely" she replied with a cheeky grin.

We continued to tussle for a while. Jess was really trying to overpower me counting only on her muscular strength. I kept on blocking her with my goofy wrestling locks and the only thing she could do was struggling to get free. I must admit i was having fun. My man muscles were too much for her to handle.

I thought that all her talking about male weakness was just a tease.
"Do you surrender?" i asked after i've blocked her once more. "Say that i have more muscles than you! Say it!"

Jess groaned. Although she was clearly defeated she didn't want to surrender.
"Come on Jess. Say it. Say i have more muscles than you!"

I was careful to not hurt her. She wasn't in pain, she just couldn't get free. But i'm sure that even if i was hurting her she wouldn't have surrendered.

"You have balls" Jess muttered. My heart skipped a bit. I applied a little more pressure but she just smiled.

Her hand moved down and she grabbed my testicles with surprising force. The pain was instant and intense. I yelped, trying to push her away, but she had a vice-like grip.

"Jess, let go! That's not fair!" I managed to choke out through clenched teeth. The pain was overwhelming, my entire body tense with agony. She just chuckled and tightened her grasp.

"Say it, Tom. Say you have weak balls" she taunted.

My body was paralyzed with pain. It was unbearable, like a thousand needles piercing through my skin, sending waves of agony up my spine.

"Jess...please...stop," I begged, my voice cracking. But she was relentless, her grip tightening as she leaned in closer. I felt her breasts pressing on my body. I'm not sure if she'd done that on purpose but in that moment i felt a slightly erotic sensation and my penis was reacting.

For a moment Jess loosen the grip and glanced at me confused. My heart was racing. She must have felt my growing erection. With a smirk she squeezeed my balls again. "Say that my melons have defeated your coconuts"

"Fine, fine! I surrender! You're stronger than me!" I exclaimed with a grimace. I had to admit defeat. I needed to save me from the pain and the embarrassing boner.

Jess released her grip, a look of pure victory flashing across her face. She stood up, leaving me gasping for breath and writhing on the floor.
"I'll let you live to tell the tale of how your little sister beat you in a wrestling match." Then she burst into laughter.

I took a few moments to gather myself. Jess offered me her hands to help me get up. I refused to her help pretending to be angry with her but in reality i needed to sit on the floor to hide my erection. She simply raised an eyebrow and glanced between my legs. I instinctively closed them tighter. Jess turned to leave but not before adjusting her shorts in front of my eyes.

The days after the match i had mixed feelings. Although i felt humiliated by how easily Jess made me surrender, there had been something amusing in the pain she inflicted to my testicles.

I tried to hit my balls by myself. I wanted to see how painful could it be. I wanted to feel the same trill Jess made me feel but despite all my attempts i couldn't feel much more than a sense of discomfort. I need to feel something else than my hand on my balls. I needed to feel helpless, with no choices. Jess's breasts pressing on my body. I needed her to hit my balls.

The very next Sunday evening i found again Jess eating dinner and watching at wrestling on television. That time the volume was off. Jess had headphones on and was talking with a friend on the phone. I prepared myself something to eat.

"I can't talk about it now. There's Tom here.... I guess he's ok by now... Yhea it has been fun, easy win. Next time i should try and floor him with a kick... It seems that he nothing to say about me watching wrestling ahaha... "

I tried to ignore her. I sat at the table without giving her more than a glare.
She smiled delightfully at me.

"I've forgot to ask. Hey Tom Alison wanna know how does it feel to have your balls squeezeed ahaha!"

"It has been unfair if she wanna know" i raised my voice a little "I'm not use to it anyway. You got me by surprise!"

"Ahahah he's getting angry..."Jess said to her friend."We'll see tomorrow so we can't talk about that thing...bye.. Bye, bye." Jess closed her phone and kept on eating her dinner ignoring me.

I couldn't let this occasion pass. I couldn't drop the argument like this. I needed to feel that pain again. That strange pleasure she had given me.
"So, Jess," I began nervously, "I've been thinking about our little...competition last week."

Jess looked up from her plate, a hint of mischief in her eyes. "What about it?"

I took a deep breath, trying to find the right words. "If only i were used to that pain i wouldn't have lost to you... I should train my balls to handle the pain... Then you won't have a chance against me!"

"Train your balls. I'm quite sure that's impossible"

"It is possible! If you hit me in the balls every day i could get use to the pain"

Jess dropped her fork and almost chocked herself. She bursted out laughing. "Wait... Do you... Do you want me to hit you in the balls every day to train them?"

"That would only strengthen me up...but i can't do it myself. It's not the same"

"Really?... Your balls Tom? You want me to kick them? It's your precious family jewels we're talking about!"

"My jewels are made of iron! They can handle everything!"

Jess made a wried expression. She finished the dinner and cleaned her dish. I felt ashamed by how she ignored my suggestion. I took her silence as a "No" but It seemed that she was thinking at something. I thought i'd been a fool to ask her something like that but then before leaving the room Jess turned to me.

"Get ready Tom because from tomorrow it's your training season!"

The words echoed in my mind the entire night. What had I gotten myself into? Did I really want my sister to hit me in the balls every day? The thought was both terrifying and... oddly arousing.

The next day, Jess didn't wait for an occasion. She woke me up with a swift kick to my crotch. I bolted upright in bed, gasping for air as the pain shot through my body. She was standing over me, a sadistic smile playing on her lips. "Morning workout," she quipped before skipping out of the room.

I stumbled out of bed, my manhood throbbing in pain. I couldn't help but feel a twisted sense of excitement. This was going to be a new routine, a secret thrill we shared. And as much as I didn't want to admit it, I was kind of looking forward to it.

As the days turned into weeks, Jess found various opportunities to sneak in her ball-busting moves. It started with subtle nudges and escalated to full-blown kicks and slaps. She'd catch me off guard when I was least expecting it – reaching for a book on a high shelf, bending down to tie my shoes. The pain was intense, but the thrill of it grew stronger each day.

Once she crossed my path as i was walking to my room after a shower. I was wearing just a robe.

"After shower training session!" she declared. I didn't argue with it.

Jess told me to keep my hands behind my back and look at her.

"Keep your focus on me" she crossed her arms below her chest pushing up her boobs. She made me blush. I felt my penis react and the thought of the kick she was about to give me made me grow a boner.

"Open your legs Tom...more...more... A little more" she was giggling as if she knew exactly what she was doing.

I opened my legs more and more but in doing so the robe moved enough to make my penis pop out right in front of Jess.

As soon as her gaze fell on my exposed erection she kicked me in the balls full force. Then she dashed away blushing even more than me. I felt on my knees with my balls on fire. I couldn't believe how i let her trick me to expose my penis, but i was the one who asked for the training and everything. She just knew how to take full advantage of it.

One evening, while watching TV together, Jess went to the kitchen to take a can of soda. When she sat back on the sofa she casually snuggled next to me and her hand leaned on my thigh "Time for your daily workout," she announced, wiggling her fingers.

She slowly cupped my balls. Her breasts was pressed against my arm. It took me no time to grow a boner. Jess seemed to be perfectly at ease. She was sipping her soda and watching the movie pretending to not notice my erection.

I found myself thinking "This can't be happening, this is too crazy" but then Jess squeezed my balls and my brain stopped thinking.

It started as a dull throb, then grew into a sharp, stinging ache that made me bite down hard on my bottom lip to keep from crying out. I squirmed in my seat, trying to find a comfortable position, but every shift brought a new wave of pain.

Jess stopped but kept her hands on my testicles. After a couple of minutes she squeezeed again. She went on like this for at least thirty minutes. Squeeze and release. Pumping my genitals as they were a stress ball.

My boner never faded. When Jess finished her soda she let go my balls to put away the can. It was just when she moved again her hand on my crotch she accidentally touched my boner. She withdraw her fingers for a moment but then, noticing that i didn't stop her, she gently touched my boner again.

"Do you like when i squeeze your balls?" she asked making circles with her fingers on the bulge of my boner. I swallowed. There wasn't much i could have answered. I literally asked her to hurt my balls and now i was spotting an erection.

"Come on. Tell me if you like when i train your balls" She said the word "Train" with sarcasm.

"Sometime it can be enjoyable...." i was literally trembling for the pleasure.

"Good" she simply said. "Too bad for you the movie is about to end"

That was true. I was a little upset that the movie was almost over. But Jess surprised me.

She took the remote and rewinded the movie. She stared a me with a smirk on her face. "I don't remember what the protagonist said in this scene" she said in a sing song voice. I bet she loved that i didn't protest. She loved to toy with me.

Jess's hand became more bold. As i watched the movie again i felt her fingers dancing on my crotch. She wasn't just squeezing. She slapped, pinched and flicked them, alternating everything with gentle strokes on my boner.

She adjusted my pants so that my balls were clearly out shaped. The pain was slowly increasing and my body was reacting.

I felt a mix of agony and exhilaration as Jess's hand worked its magic on my sensitive flesh. Each squeeze sent a jolt of pain through me, but it was a pain I was learning to crave.

Jess began to touch me with both her hands. She wasn't watching the movie at all and her attentions were just on my balls.

Her right hand was gentle and caressing. Her soft touch was driving me crazy. Her fingers danced around the base of my penis, stroking it gently. It was a sweet contrast to the pain she was inflicting with her other hand.

Jess's right hand was a whirlwind of torment, as she squeezed and tugged at my balls.The sensation was unbearable. With the left, she began to stroke my shaft. The pain from my testicles was intense, but the pleasure from her hand on my penis was confusing. It was crazy what my younger sister was putting me through.

"Jess... I'm about to..."

"Come on... I wanna see you surrender. If you can't handle it just surrender"

"Jess... It gonna..."

"I'm not talking with you Tom. Come on little pecker..." she whispered, her voice thick with amusement.

I didn't know how to respond. And then, without warning, it happened.

I couldn't hold back the moan that escaped my lips as I came inside my pants. My body convulsed with the force of it, my eyes squeezed shut, and my teeth clenched.

"Oh! It has surrendered!" Jess exclaim. "it seems that not only your balls need to be trained!" she giggled and and stood up, leaving the room. I was in shock and embarassment. I couldn't believe what had just happened.

That day marked a significant shift in our dynamic. Jess had discovered a newfound power over me, and she reveled in it. It was as if she had unlocked a door to a part of me that I didn't know existed, a part that craved the pain and humiliation she so casually dished out.