Bratty sister 9: Watching a video together, and a couple of new firsts

Part 9 of the story, read the others on my profile if you haven't!

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

After regaining my strength from Nat's squeezes, kicks, and knees, I'd made my way back upstairs and plopped into my bed, falling asleep almost instantly. I awoke the next morning, feeling groggy and dazed. *All this ballbusting is really starting to take its toll on me. It's impossible to get any sleep when my nuts are always swollen!* I got out of bed and started to put on my shorts, stopping myself halfway when I remembered what Nat had told me last night. *No more pants, huh?* I took the shorts back off and looked toward my bedroom door. *She's usually here to wake me up. I wonder where she is?* I left my room, heading downstairs to find my petite little sister in the kitchen, hunched over in front of the toaster. She was wearing a loose-fitting gray sweatshirt and black short shorts. 

"Morning, Nat. What are you doing?"

The thin brunette turned to me, her face beaming when she noticed my entire lower half was exposed.

"Making breakfast! I see you remembered the new rule!"

She skipped over to me as if she was going to jump into my arms, only to swing her hand back and arc it forward, slapping my balls from underneath.

\*Slap!\*

"ohhh!"

As I bent over and held my balls, she put her hands on her hips and puffed out her modest chest.

"See? It'll be so much easier to smack those stupid balls around now!" She looked up from her targets to see that my dick had already started to rise. "And it's a good thing, too! You just woke up, and already that big cock is getting hard!"

I braced myself for whatever cruel hit would follow those words, but none came. I looked up to see Nat back at the toaster, clapping excitedly when two Pop-Tarts popped out.

"Here, I made us breakfast!" she proudly exclaimed. "One for you, and one for me! Feel free to compliment the chef!"

*You're actually out of your damn mind if you think I'm complimenting you on cooking a Pop-Tart.*

I took the pastry, eating it as Nat checked her phone.

"Chloe's gunna be here soon," she said as she scrolled through her text messages. "We're gunna hang out and watch some videos."

*Chloe? HERE?*

"Wait!" I protested. "I've gotta put some pants on if someone's coming over!"

"Hahaha, what are you talking about?" she responded. "I'm pretty sure Chloe's already seen what you're packin'."

As I tried to come up with an argument that this bratty young woman would understand, I heard a knock on the door. Nat gingerly ran to the door, opening it to reveal Chloe wearing a white tank top and bright purple short shorts. As she cheerfully greeted Nat and walked inside, I could see that she was somewhat sweaty, allowing me to see her black sports bra under her tank top barely containing her massive tits. 

"Sorry!" the busty blonde said. "I just finished my morning workout, so I'm still a little sweaty.

"Don't worry about it!" Nat responded. 

As the pair walked into the living room, Chloe's eyes immediately darted to me, a devilish smile appearing on her face.

"Well, good morning, Mr. Big Brother! You haven't even said hello, and you've already got that big thing out!"

I quickly moved my hands to cover myself, but Nat ran up and slapped my hands away.

"You know the rules, mister!" she said as she pouted and looked me in the eyes. "Boys with big, naughty cocks don't get to hide! I need to keep an eye on this thing!"

Nat grabbed both of us by the wrists, dragging us to the couch and making us sit down. She put me in the middle, with Chloe seated on my left and herself on my right. She pulled her phone out, clicking the Bluetooth button and syncing it to our TV, then started typing.

"Sorry about this." I apologized, looking at Chloe to find her not looking at my face but at my crotch.

"It's Okay. She's been really going at it lately. I already expected you to have your cock out at some point during the visit.

"Is it really such a routine thing now?"

"It really is."

We both laughed as we joked about the absurd situations that my little sister had been dragging us both into when we heard Nat yell.

"Here it is!" she said, pointing at the screen that was now casting a video from her phone. "This new video I found! It's *so good!*

Both Chloe and I turned to the TV, seeing a naked man seated on the ground with a hot leather-clad woman standing over him. *Oh my god, Nat! We have a visitor! Have a bit of shame!* Nat put her phone down, scooting up beside me and laying her head on my shoulder. As she started bouncing her feet on the ground in excitement, I reached over and paused the video.

"Nat, Chloe's here! What are you doing putting this stuff on the TV?!"

Nat looked over at me and pouted.

"Really? You're gunna act like that after you played with my pussy last night?"

I froze, unable to respond. *Why the fuck would you say that?!* I turned to Chloe, who was looking up at me, blushing and covering her mouth.

"Mr. Big Brother... I had no idea..."

"No listed, I can explain!"

"It's one thing to go around getting girls to kick your balls, but stuff like that with your sister..."

\*Smack!\*

"Ohhh!"

Our conversation had been interrupted by the sound of Nat roughly slapping my nuts, causing me to reach down and hold them as she un-paused the video. 

"Seriously guys, this video is really good. Stop interrupting!"

Both Chloe and I turned our attention to the screen, watching as the leather-clad woman took off her platform boots. As the camera zoomed in on her bare feet, she walked closer to the man, stopping only an inch from his exposed balls. *Wait, this video might actually be good.* I watched intently as the woman stepped up with her right foot, gently resting in on the man's left ball. The camera zoomed out, and the woman placed her hands on the man's shoulders, preparing to balance herself. I felt Nat cuddle up to me and wrap her arms around my right arm. Once the woman on the screen had her balance, she brought her left foot onto the man's right ball, placing the entirety of her weight on the man's vulnerable ballsack. As the man on the TV started moaning and begging for her to stop, my sister and I started to breathe heavily. Chloe looked over at us and then down at my crotch.

"He's already hard!" Chloe said, reaching down and grabbing my dick at the base. 

Nat looked down and started giggling. "That's why he has to be naked! You never know when that stupid cock is gunna get hard!" 

Nat reached down, lightly slapping my balls as she cuddled up closer to me and looked back at the screen.

"Chloe, keep an eye on his cock. We need to make sure he doesn't cum all over the place."

With this, Nat started rhythmically slapping my nuts as she watched the screen intently, an excited shiver running down her spine as she watched the man on screen scream and beg for mercy. I felt Chloe's hand move up the length of my erection. As she brought her free hand to grab the base of my dick, she leaned in to whisper in my ear as her massive tits pressed into my chest. Her words were so soft that only I could hear them. 

"She still doesn't know that you like this, huh?"

I wrapped my arm around her back, leaning in to whisper back to her. As I closed in, I could smell the faint scent of her sweat and the fragrance of her shampoo. I got so close that my lips barely touched her ear as I spoke.

"No. I don't know how she would react. Maybe if we could still keep it a secret?"

She adjusted again, leaning into my ear. The words I expected never came, and instead all I heard was the gentle sound of Chloe blowing into my ear. My body tensed from the stimulation, only for me to be brought back to reality by a sudden hard slap from Nat.

\*Smack!!\*

"Ah, Nat!"

"Did you see that?!" she yelled, kicking her feet in excitement. 

As she kicked her feet, her foot hit the bottom of the couch, causing her phone to slide off and land on the floor and the video to start buffering. She removed her hand from my crotch, jumping down to get her phone and desperately trying to resume the video. She looked up at us, a genuine sadness on her face.

"I can't get it to work now..." she said, her eyes cast to the floor.

"It's okay!" Chloe responded, desperate to cheer her best friend up as both her hands were still wrapped around my erection. "You have a couple of balls to play with right here!" She moved her hands down and roughly grabbed my nuts, causing me to flinch.

"Chloe, could you..." Nat trailed off. 

"Could I what?"

"Could you bust him for me?"

Chloe, obviously confused, tilted her head as she stared at the petite brunette.

"Are you sure, Nat? I never thought you'd pass up a chance to crack his nuts!"

"I really had my hopes up to watch the video. I could watch you instead. Maybe that would be almost as good."

Chloe started giggling as she moved off the couch, sitting on her knees between my spread legs as she roughly grabbed my balls with her left hand and pulled her right hand back. 

"I guess I can do it! I can't exactly say no when you look so sad about it!"

Nat started giggling as she moved back onto the couch, snuggling up against me, resting her head on my shoulder as she stared down at my crotch.

"Do it! Crack his nuts! Teach that naughty cock a lesson!"

*Nat, what kind of situation is this?!*

As Chloe delivered her first punch, I threw my head back and groaned. Nat giggled and wrapped her arms around my body, squeezing me tight as she watched Chloe's assault intently. Chloe continued to bring her fist back, driving it into my completely defenseless balls over and over. Unable to protect myself and my mind screaming for the pain to stop, I desperately grabbed onto Nat, squeezing her tight and resting my forehead on hers. She gasped in excitement, reaching down and grabbing my dick with her right hand. 

"This is what you get!" she panted, continuing to watch the busty blonde wreck havoc on my poor nuts. "This is what happens to boys with big, naughty cocks!" She squeezed my dick, causing me to latch onto her more tightly.

"Nat! NAT! FUCK! My balls, My BALLS!"

Both of us looked back down, watching Chloe release my balls and stand up, wiping the sweat off her forehead. 

"Jeez, these nuts can really take a beating!"

"How about some kicks? Chloe, kick his nuts for me!"

I scooted myself forward, allowing my throbbing balls to hang off the edge of the couch. I looked Chloe in the eyes, silently begging her for more punishment. Chloe gave me a knowing smile, bringing her right foot back before launching it into my nuts.

\*SMACK!\*

As Chloe delivered kick after kick, I could feel Nat's hips start the rhythmic bucking that I'd become so accustomed to. I looked over at her, our eyes meeting as she started biting her bottom lip. I leaned in, whispering to her. 

"Nat, my nuts... She's gunna... break my nuts..."

Nat gasped, her hand immediately darting down to her own crotch but freezing mere inches away. She stared into my eyes for a second, then moved her right hand to my dick, squeezing it tightly as she slowly opened her legs. Unable to control myself, I wrapped my arm around her, bringing my hand to her crotch and gently sliding my it into her panties. She moaned softly as my fingers effortlessly entered her warm, wet pussy. As she moaned and her body trembled, she started running her hand up and down the length of my erection, causing me to moan in unison with her. Nat leaned in and rested her head on my shoulder, and I looked up to see that Chloe was watching us pleasure each other, her face beat-red. After a few seconds of watching us, she continued her cruel kicks.

After the fifteenth kick, I started bucking my hips, unable to contain myself anymore. As I neared my climax, I redoubled my efforts on pleasuring my sisters pussy, quickly bringing her to climax as well. As she screamed and threw her head back, I moaned loudly and bucked my hips a final time. As I came, I shot high into the air, completely covering Chloe's face and chest. Chloe yelped in surprise, backing away from us as Nat and I slumped into the couch, our eyes crossed and our breathing ragged. Nat snuggled up to me, looking like she was about to faint. When my vision cleared, I looked up to see Chloe staring at us, her cheeks a deep crimson and her face and chest covered in my cum.

"U-um..." I stammered, trying to think of an explanation for everything the busty blonde had just witnessed.

"Wow, you really do touch her there, don't you?"

"W-Well you see-"

"I need to go clean up!" Chloe interrupted, running to the front door. "I'll go home and change! We'll hang out next time!"

*Wow. I haven't seen her that embarrassed since the first time we met.* 

As Chloe left and slammed the front door shut, I looked down at my sister. Nat was lying on my arm, still breathing heavily with her eyes crossed and her mouth agape. 

"Nat, you okay?"

"Ohhh... Ohhhhh...."

*Wow, she must have really liked that.*

As I tried to get up, she clung to my arm. I looked over to see her slowly moving to me, her eyes finally uncrossing. She leaned in before I could say anything, giving me a gentle kiss on the lips before quickly turning away.

*H-huh?!*

"T-that's for always letting me have fun with your balls..."

Though I could not see her face, the deep red shade on the top of her ears told me that she was blushing heavily.

"You know I like busting your balls now. It's embarrassing, but..."

*What the hell is this?! She's never been this direct before!*

"T-Thanks!" she yelled, quickly getting up and running to the staircase.

*This is getting complicated. A handjob and a kiss...* I stood up, still exposed from the waist down, and returned to my room, laying on the bed and letting out a drawn-out sigh. I pondered what I would say to Nat the next time I saw her. *She roughs my balls up constantly and sees me naked more often than clothed, but this is just... different...* My thoughts trailed off. A few minutes later, I remembered Chloe's embarrassment at the whole situation. *Shit! I gotta figure out what to say to her too!* I got back under the covers, deciding a quick nap might help the creative juices flow. I drifted off, contemplating how to handle the future with my bratty little sister. 

\*\*\*

Thanks for reading! This one was a bit harder to write. There were a lot of little movements to describe during the couch scene. Hopefully you liked it... Let me know what you think!