Bratty sister 3: Bathtub ballbusting and a harsh punishment

Another continuation of the previous story, which you can read on my profile.

\*\*\*ALL CHARACTERS INVOLVED ARE AT LEAST 18 YEARS OLD\*\*\*

As I walked through our front door, I let out a sigh of relief.  *No one noticed the cum my pants... what a miracle.*  Nat walked past me to the kitchen and started unloading the contents of her pockets, placing her phone and wallet on the table.  She turned to me, and, looking me up and down, came to have an annoyed expression on her face.  

"Seriously, go take a bath.  You're so sweaty, my hand got wet just from slapping your balls."

*That wasn't sweat*.

"Yeah, yeah, I'm going.  Give me a sec.

"No, go right now!"

After the experience at the karaoke bar, I still felt a little out of it, so I guess my response came a little slower than she'd wanted.  "Ok... Ok, I'm-"

\*thump!\*

"oohh!"

As I'd been hazily trying to respond to her, she must have lost her patience, because Nat had walked up to me and launched her right foot out, kicking my balls with a good amount of force.  I bent forward and put my hands on my knees, caught off guard by the sudden bust.  Nat retracted her foot from my crotch and put her hands on her hips, making an angry face at me.  As I stood there bent over with my hands on my knees, she looked down at her foot, and remembering that my pants were wet, became even more angry.

"Ew!"

\*smash!\*

"Ah, Nat!"

She had then sent her knee crashing into my balls, slightly lifting me up before causing me to bend over and hold my crotch.

Then, looking at her knee this time, in an even angrier voice, "EWW!!!"

I ran off to the bathroom before she could continue this endless cycle of pain.  

As I got to the bathroom, I shut the door, took off my clothes, and took the chance to inspect the damage.  

"Damn, Nat.  You didn't play around today."

My right ball was pretty swollen.  I felt around a bit, but everything still seemed to be in one piece.  *Nat wasn't joking with that squeeze today; I didn't think the right one was gunna survive.*  I ran the hot water and eased myself into the bathtub.  Finally having a quiet moment to myself, I thought about everything that had happened today.  I thought about the serious busting my sister gave me at breakfast, and her blushing face when I accidentally came on her hand.  I thought about how Nat had for the first time hit my balls in a public place, and how when she left, her shy, cute friend took over to kick me while her huge tits bounced up and down. But more than anything else, I remembered Nat squatting in front of me, squeezing the life out of my right ball.  As I continued reminiscing, my dick quickly grew to full mast.  *Well, I don't know when the next time I'll be safe and alone, so I might as well...*  I started stroking my dick while thinking of my cruel, ballbusting sister and her big-breasted friend.  

Some time had passed, and after a while I realized I had no idea how long I'd been in the tub or what time it was, so I decided it was time to get out.  *Nat'll be pissed if I come down late for dinner because I was in the bath too long.*  I pulled the drain to let the water out, and as the tub quickly emptied, I redoubled my efforts on my dick to cum in peace while I had the chance.  Before I could finish though, I heard a harsh knock on the door, quickly followed by an angry-sounding voice.  

"Hey!  Dinner's almost done!  Why are you taking so long in the tub?!

*Fuck.*

"Sorry, I'm getting out right now."

The bathroom door quickly opened, and Nat walked right into the bathroom, obviously not giving a shit about my privacy.  *Did I seriously forget to lock it?!*

"C'mon, what are you even doing in here?"

My sister paused as she looked at me sitting in the bathtub, and then walking closer, she noticed that the drain had already been pulled and the water was long gone.  

"Why are you just sitting in here with no water?..."

"I just drained it and I'm getting out now, can you hand me my towel so I can-"

"Seriously?!"

I look up at Nat's face to see that she's not looking at *me*, but rather my hard dick.

"What the fuck?!  Why are you just sitting in here with your cock hard?!"

Having forgotten about the whole masturbation thing, I frantically tried to cover my dick and come up with an excuse.

"I- the- uh- wha-"

Nat walked up to the tub as I stammered like an idiot, and when I saw her raise her leg up and step into the tub with me, I went dead silent.  *No no no, I'm completely naked right now.*  She knelt down between my legs and reached out to grab my offending package, before stopping herself and staring at my twitching dick.  She stared for a few seconds, and I took the chance to try to convince her not to do what I knew she was going to do.

"N-Nat, we can do this once I'm out of the tub.  I'm n-naked right now..."

Her eyes darted from my cock and balls to my eyes, and in a harsh tone, said "I'm cracking your nuts *right now*, or your stupid cock is gunna end up cumming all over the bathroom.  

Looking again at my completely exposed package, she started to reach for it but stopped, then slowly stood up and brought her leg back.  *She must not want to touch it with her bare hands.*  I braced myself for the inevitable kick, but as she brought her foot forward toward it's targets, she slipped from the small amount of water on the tub floor and fell forward into me, crashing into my chest and knocking me back into the end of the tub.  

As I was seated up on the floor of the tub with my legs spread and my dick hard, I watched in silence as my sister, now on her knees between my legs, stared down at my crotch.  

"S-see, it's dangerous.  Let's get out of the tub and-"

I felt a sudden sharp pain in my balls and looked down to see that Nat had aggressively grabbed them and pulled them toward her, causing my dick to bounce and the rest of my body to tremble.  She looked me in the eyes, blushing deeply despite the annoyed pouting face she was making.  As she started to put some pressure on my balls, I tensed up and leaned forward toward her a little bit.  

"Nat... no... wait-"

"I'm cracking your fucking nuts!"

With this, she clamped her hands down on my balls, squeezing them together as if they were two small stress balls.  My whole body tensed up and I threw my head back, hitting it on the wall behind me.  As she continued to squeeze, smash, and roughly handle my balls, I tried to pull myself back up into an upright seated position, grabbing her shoulders with both hands.

"No!  Stay down and take it!"

She leaned into my chest with her whole body, pushing me back down into a semi-laying position and laying on my chest as she continued to rough my balls up.  *There's no way out of this, is there?!  There is literally no way I'm not going to cum from this!*  I put my arms around her body, and with my hands gripping the back of her shirt, I used every ounce of my being to resist cumming.  As she continued to squeeze my balls, my hands started moving up and down her back, finally settling in place when I felt the strap of her bra.  As I neared the point of no return, I thought of one last-ditch effort to stop the situation.

"Nat!  My right nut still hurts from the karaoke place!  You're gunna *break* it!

She stopped squeezing immediately, but kept her hands wrapped around my now throbbing balls.  She started adjusting her hands, causing me to sigh in relief thinking that I had just avoided disaster, but my body tensed again as I realized what she'd done.  She had adjusted her hands so that both were wrapped solely around my less-bruised left ball.  

She looked up at me, face inches from my own and beat-red, and in a hushed, embarrassed, and irate tone said something that single-handedly destroyed any hope I had for the situation.  

"Then your *left* nut is getting it until that cock is under control!"

With this, she used all of her force to clamp down on my left ball, causing my body to again tense up, pulling her tightly against my own body and burying my face into her neck.  As she continued to knead my poor left ball, I started to moan in her ear.

"See?  Your ball hurts, doesn't it?!  This is what happens when that stupid cock gets hard!"

As my sister continued to work my poor left nut over, I buried my face deeper into her neck.  I again could smell the scent of her fragrant shampoo, and my hands moving on her back involuntarily rested on the hook of her bra.

I started bucking my hips involuntarily, and as I reached the edge of what I could handle, I snuggled my face next to hers and gripped her body as tightly as I could.  

"Nat!!"

"N-no, stop!  Don't cum!  Don't-"

In a last ditch effort, I pushed her off, my hand landing on her left breast and roughly squeezing it, the surprisingly soft sensation of her small tit taking me over the edge as I started to climax.  She pushed herself off of me to try and avoid the foreign liquid quickly approaching her, but she was too late.  As I bucked my hips one final time, I came, shooting it straight up and hitting her under the chin, with the second and third shots quickly following and landing on her chest.  As my climax eased and the contractures throughout my body relaxed, my hand let go of her petite left breast as I fell back into the wall behind me. Slumping my head, my eyes were crossed, and my breathing labored.  When my vision cleared, I slowly looked up at my sister to assess the damage, and what I saw was a beat-red face staring back at me, trying to wipe the cum off of her chin and neck.  

"N-nat, I-"

She quickly stood up, and without saying a word, got out of the tub and walked to the door.  

"Nat, wait!  I-"

She turned to look at me, her hands clasped to her chest and her eyes darting between me and the floor.  

"D-Dinner's almost ready, so hurry up..."

With this, she turned back and left, leaving the bathroom door wide open.  I got up, cleaned myself off despite having *just* had a bath, got dressed, and steeled myself for the upcoming awkwardness as I descended the stairs to the kitchen.  

As I turned the corner at the bottom of the stairs, I saw my sister sitting at her side of our small kitchen table, picking at her food with a fork and avoiding eye contact with me.  I sat in my chair across from her and looked at the plate in front of me.  After about a minute of silence, I tried to break the ice and ease this awkward atmosphere.  

"H-hey, about the bathtub, I-"

\*thump!\*

"Ah!"

As soon as I had opened my mouth, Nat immediately shot her foot out from under the table and kicked my balls, quickly retracting her foot and looking up at me.

"I'm mad at you!"

"W-well, yeah, I know.  That's why I'm-"

\*thump!\*

"oohhh..."

"You came all over me!  You were in the bathroom forever playing with your filthy cock, and then you came all over me!"

"I-I know... but-"

"Stand up!"

With this, she angrily scooted her chair back from the table, stood up, and walked over to my side, grabbing me by the arm and forcing me to stand.  

"W-What are you doing?"

She looked me in the eyes and swung her hand down in an arc, slapping my balls and causing me to bend over slightly.  

"I'm gunna punish your balls!"

"B-But I'm not even *hard* right now!"

Another slap came with the same hand and smacked my balls again.

"This isn't to keep your dick down!  This is a *punishment!*

She pouted and blushed as she continued to look me in the eyes.

"Bad boys with naughty cocks need to get their nuts cracked!"

With this, my furious sister aggressively grabbed my belt with both hands, pulling and twisting it in an effort to get it off.  *What is she doing?!*  When she finally got the belt unbuckled, she grabbed each side of my pants at the waistline and pulled down with all her might, bringing both my pants and boxers down to the ground.  In a panic, I tried to grab my pants as they were dragged to the floor, but was stopped in my tracks by a sudden knee to my balls.  

\*smack!\*

"Ahh! Wait!"

\*smack!\*

"Ohh!"

She stepped back about a foot and let me bend forward, grabbing my balls with my hands and moaning in pain.  

"Move your hands."

I looked up to see Nat standing a couple of feet in front of me with her hands on her hips, her eyes cast down to my hands still cradling my throbbing balls.  I started to tremble and tried to say something, *anything* to de-escalate the situation.  I was interrupted before I got the first word out.

"Move. Your. Hands.  I'm giving your nuts three hard kicks."

*But I don't have anything covering my dick!  I can't hide it when I get hard!*

"Nat, my pants.  Let me put my-"

"If you cared so much about keeping it covered," interrupted my both blushing and angry sister, "then maybe don't lay around in the tub completely naked, stroking your dirty cock!"

I let go of my still-throbbing balls, letting them drop to their natural resting position as I brought my hands up slightly so as to at least cover up my naked dick.  

"Hands off the cock, too."

"N-Nat, please-"

\*Smack!\*

"AAUGH!\*

Sick of my whimpering, Nat had stepped forward and delivered a full force kick to my sagging naked balls, crushing them up into my pelvis and nearly lifting me off the ground.  As she retracted her foot and my balls dropped back down to their normal positions, I fell to my knees, hands immediately shooting down to cradle my battered nuts.  Kneeling on the ground with my pants and boxers around my ankles, tears forming in my eyes and both hands nursing my balls, I made for a pathetic sight as the pain and stimulation had become too much for me to sit quietly through.  

"Ohh Nat.  My fucking balls... Oh god, you kicked them so hard..."

The hint of a smug smile appeared briefly on my sister's face, and after a few seconds, she signaled with her hand for me to stand up.  

"I'm gunna kick those nuts three times, and then your punishment's done."

Knowing that arguing would only make things worse, I mustered all of my strength to stand back up, letting go of my quickly swelling, bruised balls and putting my hands to my sides.  She drew her right foot back, and as her eyes darted between my balls and my face, I steeled myself for what was to come.  She took a deep breath, tensed as if showing off the well developed muscles in her leg, and swung her foot forward, crashing it into my nuts and causing me to cry out and double over in pain.  As I resisted the urge to hold and protect my weakest and most vulnerable place, I looked up to see her stifling a giggle, her small breasts bouncing ever so slightly.  As I continued to stare at her modest tits, she launched another kick into my balls, causing a loud smacking sound and forcing me into a squatting position, my hands within inches of my battered balls, my mind screaming at me to keep them exposed for my sister under threat of even worse punishment.  

"Just one more kick and you're forgiven!" Nat said, in a voice that sounded almost playful.  

I look up from my balls to see my sister with a devious smile on her face, her eyes slightly squinted as she stared at me on the brink of collapse.  *She seemed so angry before, but suddenly it's almost like... she's having fun?*  She pulled her leg back for the final kick, and as I tried to stand from my current squatting position, I found that I no longer had the strength to do so.  As her foot started rushing toward its target, I resigned myself to my fate and slightly opened my legs, bracing myself for impact.  Her foot collided with my bruised, now swollen ball sack, and caused my whole body to raise about six inches before I fell to the ground, landing on my ass and quickly rolling onto my knees with my head on the ground and my hands desperately clutching my balls.  

"Hahaha!  What the fuck, did I break them?  I hit your stupid balls all the time, but I've never seen you in that *that* position before!"

Nat watched on as she continued to laugh at my incredible pain, and it was obvious at this point that she was genuinely enjoying herself.  I had a hard time paying attention to her cute giggles, as all my energy was spent not only trying to quell the immense pain in my balls, but also to stop the erection I was quickly getting.  She walked up to me and squatted down next to where my head was resting on the ground, poking my back with her finger.

"Are your nuts still in one piece?  Maybe I broke them for good this time.  Hehehe, maybe that cock won't even work anymore!"

Her continued laughing and joking about my excruciating pain was too much for me, and despite the burning hot pain in my balls, I wasn't able to control my dick anymore.  Nat walked over to the kitchen table and pulled my chair out for me, pointing and signaling for me to sit for dinner.  *Even if I could move right now, if I show her my hard dick right now, she's going to castrate me.*  I lifted my head off the ground and looked Nat in the eyes.  

"I need a little.... a little bit... Ohh... My balls.... My..."

Nat walked over and again squatted down next to me.  At this point, the anger on her face had completely vanished.  *I guess I really am forgiven after some punishment.*

"Alright, you can rest for a while.  Once those nuts feel better, make sure to eat.  I spent a lot of time on it, and if you don't eat it all I'm *really* gunna crush those balls!"

As she so casually joked about destroying my most vulnerable place, I laughed nervously.  I shifted a little on the ground as I felt my dick continuing to throb.  With my focus diverted elsewhere, I didn't notice as Nat had gently grabbed my chin and turned my head toward her, and as I refocused and looked up at her, she bent down and gently kissed my forehead.  After her lips left me, she quickly stood up and walked to the table, sitting down and proceeding to eat her meal.  *W-What the fuck was that?*  With as turned on as I was from the busting, teasing, and the kiss, my dick refused to let up, and it was well into the night after Nat had long since retired to her room that I was able to get up without fear of being caught with a boner.  As I returned to my room and closed the door, I looked down to see my balls nearly twice their normal size, a darker purple color with a few large bruises at the bottom of each.  Thinking of my cute, petite, bratty little sister while staring down at my mangled, throbbing balls, my dick quickly rose to full mast again.  *Absolutely not.  I'm not falling for this again.*  With the memory of being caught in the act still so freshly in my mind, I put on some shorts and promptly went to bed.  As I nursed my aching balls, the pain being a constant reminder of that little ballbusting brat sleeping in the room just down the hall, my dick twitched and throbbed to the point of actually hurting.  *This is gunna be a long night.*

*\*\*\**

Thank you for reading! I only did one proof read and grammar check, so I hope I didn't let too much stuff fall through the cracks. Hope you enjoyed it!