Brother Can't Control Himself Around His Gorgeous Sister

All characters are at least 18 years old.

My sister, Lolia, and I hadn't seen each other in years. Since then, I'd gone from handsome and slim to handsome and absolutely ripped, and still with a big-ass dick. I was sure Lolia had changed too, but I couldn't have imagined how much.

The sun blazed down on the backyard pool, the water shimmering with an inviting glow. I lay on the lounger, the warmth of the sun seeping into my skin, feeling like the king of the world. My muscles rippled, a testament to my unwavering dedication to perfection. I heard the squeak of the screen door, the sound echoing through the quiet afternoon.

In the corner of my eye, I caught a flash of color, and rushed to my feet. It was my sister, Lolia, her honey-blonde hair. She stepped out onto the patio, a vision in a skimpy bikini that left little to the imagination. Her body was a masterpiece, slim but with the big perfectly shaped tits and ass to make any man's mouth water. A total upgrade from the girl I knew. She walked with grace, her hips swaying gently, and my eyes followed her every move, lingering on the jiggling of her cheeks and milkers.

I couldn't help but feel a swell of pride mixed with something. . . else. She had always been the cute little tag-along, Now, she was a goddess, and somehow made me feel more lust than any girl I've ever seen. Never would've thought I'd need fuck my sister, but maybe after years of easily seducing woman, I needed a challenge.

"Wow, Tim, you packed on some serious muscles," she said, her voice like honey.

Her eyes seemed to hold that challenge, one that I was all too eager to accept. I smirked, flexing my abs, watching her gaze follow the movement. "We both packed on something," I replied.

I slightly leaned out my massive bulge in a speedo. It was a silent declaration of intent, a promise of the power I could wield. I watched as she approached, her eyes glancing down to my manhood before flicking back up to my face, a knowing smile playing on her lips.

Lolia's cheeks flushed a delicate pink, and she took a step closer, her fingers twitching subtly. I could see the curiosity in her eyes, the way she bit her lower lip, and I knew she was thinking about it. I could almost feel her hand reaching out, her delicate touch wrapping around me, exploring what I had to offer.

"It's time we had some real fun inside." I leaned out my bulge even more.

Her eyes flicked down again, lingering longer this time. I could see the gears turning in her head, the internal struggle she was having. I licked my lips, anticipation building in my cock. This was going to be the fuck of my life.

Lolia's gaze remained on my now growing bulge, her eyes wide and curious. She took another step closer, and the air between us grew thick with tension. My heart raced as I knew I demolished her resistance.

She smirked and with her voice barely audible, she said, "Why don't we have fun out here?" She took another step, and suddenly, she was right in front of me, her hand hovering just above my cock.

"Mom might see us," I said.

"You really want me to stop?"

"No, no, no."

I was too horny to delay it anymore. I held my breath, my body tense with excitement, my hardening cock reaching out for her. This was it. The moment I had been waiting for. The moment where her she'd give in to forbidden temptation, where I could show her just how much of a man I had become.

Her hand moved, so slowly it was almost imperceptible. But instead of landing on the pulsating bulge that begged for her touch, her fingers curled around my balls, squeezing them with a grip that was shockingly strong.

The pain was immediate, like a viper clamping down on my most sensitive part. I gasped, my body jolting, and she looked up at me with a heart-shaped smile.

"What the fuck," I roared, trying to wiggle free, but her hand had sunk in deep. Her other hand gently caressed my abdomen.

Her grip on my balls tightened, and I felt a bead of sweat roll down my forehead. "You're so horny that you wanna fuck your own sister?" Her free hand wrapped around my cock, making me gasp." You really have no control over this thing do you?"

My cheeks burned with a mix of humiliation and pain. "Lolia, let go, please," I managed to croak out. But she didn't budge. Instead, she leaned in closer, her sweaty breasts pressing against my abs.

"Thirsty, thirsty Timmy." She tugged down on my balls. forcing me to squat and be eye level with her. The stabbing pain within my sack was unbearable.

She shook my balls as she said, "Next time, you should probably empty these before you look at me." Like I was her marionette, she tugged up on my balls, then tugged right back down. The nut-pain kept reaching new levels. My little sister, this petite fucken girl, was dominating my manhood, my entire body of male perfection, and she was barely even trying.

She said, "If you would've gotten on your knees and begged me to make you cum, I guess I would've given you a pity footjob, but no, you had to be your arrogant self."

Through gritted teeth, I said, "I'm sorry. I'm sorry."

Lolia's grip didn't ease. "You're not getting off that easy," she said, a glint of mischief in her eyes. "You're going to learn some respect."

The screen door squeaked again, and our mother stepped out, her own fit body even curvier than her daughter's. She froze, taking in the scene before her.

"What on earth is going on here?" she demanded, her voice a mix of shock and amusement.

Lolia looked up at her, her grip on my balls never loosening. "Timmy here thought he could use his big bulge and newfound muscles to get me to play doctor." She giggled, the sound sending a fresh wave of embarrassment through me.

Mom's eyes widened before she burst out laughing, her hand flying to her mouth. "Oh god, that's funny," she said, wiping a tear from her eye. "Looks like someone noticed his sister's. . . well, development."

The ball-pain kept getting worse on top of the humiliation. "Mom, please tell her to stop!"

But instead of helping, she said, "Lolia, please squeeze his balls harder."

Lolia giggled at my shocked face. She then had a look of determination as she squeezed my balls much harder.

I could feel my swollen balls changing shape as the agony flowed up through my sack to fill my torso. I stupidly looked to my mom for rescue.

She then mimed a sad face as she grabbed her own crotch and imitated the same pain I was feeling. "Aww, the poor baby couldn't add any muscles to protect his nutties." Both of them cackled at me.

Lolia's grip tightened, and I shrieked, my tortured face contorted like I'd lost my mind. I croaked, "Mom!"

Mom just smirked and said, "You know, Timmy, you can't control yourself around me either. I've seen the way you look at me." She shimmied her shoulders to jiggle her luscious tits." I couldn't help but ogle them.

Mom turned around and bent over, presenting her irresistible ass in a thong-bikini to me. Completely helpless, my mouth dropped at it.

Mom looked over her shoulder at me and smugly shook her head. "You know what Lolia, please give them a twist."

Lolia grabbed me by my chin and said, "Sorry bro, I don't wanna get grounded." She took a deep breath, and then viciously twisted my balls with seemingly all her strength. I felt like my balls and brain were about to explode from the pain. Why the fuck did male bodies have to be this vulnerable, this sensitive, this pathetic?

I gasped for air, my legs trembling, trying to pull away, but my sister and mom had full control. The pain was a white-hot brand searing the soul of my manhood.

"I'm sorry," I whimpered, my pride shattered. "I'm just a pathetic male."

"Good boy," she said, finally releasing me. I collapsed onto my back near the pool. My strength had been so sapped that I couldn't even cradle my poor nuts. I was still so horny for my sister and mom that my cock was still pulsating. I wanted nothing more than to fuck them.

I heard them whispering to each other. The only word I could make out was "ruin". They pulled off my speedo.

Mom's and Lolia's eyes gleamed as they took in the sight of my ridiculously jittering cock and freakishly swollen balls. They stood tall, leaning out and waving their weakness-free bikini-clad pussies at me. Their message of their superiority was clear and undeniable.

They both giggled, a sound that was somehow innocent and evil at the same time. Mom took a step closer, her foot hovering just above my cock, her toes painted a deep red that matched the color my face had surely turned.

Lolia followed suit, her foot poised right beside mom's. Mom said, "You're just so pitiful that we'll do this for you."

Their eyes fixed on my cock as if it were a delicate instrument they were about to play. Their sweaty feet glided over my shaft and head, the intense forbidden sensation unlike anything I had ever felt before.

They worked in perfect harmony, their toes and arches expertly loving every inch of me, building up a pressure that was overwhelming. I could feel myself getting closer and closer to the edge, my entire body tense with pleasure.

But just as I was about to cum, about to spurt out the entire mangled guts of my manhood, they stopped.

I whimpered, "Wait, please, please, I need to cum."

Their smiling eyes locked on the swollen orbs that hung between my legs, and then, in unison, then reached their feet back. They swing those feet toward my balls. The tops of their feet each slammed into one of my massively swollen balls, sinking deep into the delicate nut-meat. My first huge spurt spewed with great force.

The agony was unreal, a stark contrast to the heavenly pleasure that had just been building. They had ruined my orgasm, stolen it from me in the cruelest way possible. I writhed on the ground, my nuts feeling like they were going to burst.

Mom and Lolia crouched down to me, their smooth pussies near my face. "You see, Timmy?" Mom said, her voice sweet and mocking. "You have the balls, and we have the pussies, so we're in charge."

I lay there, panting and pathetic, my eyes watering from the pain. Lolia grabbed my head by my hair and tugged my face into her bikini-clad pussy. Without thinking, I croaked into it, "Yes, ma'am." She then shoved my face into mom's bikini-clad pussy.

"You sure?" Mom asked.

"Yes ma'am."

Lolia let go of my hair and flicked my cock as it still spewed. "Let's go for a swim," Lolia said, her voice light and airy.

Mom nodded, and together, they strutted to the pool, leaving me there, naked and defeated. I ogled their jiggling butts as they walked away. They dove in. My body still thrummed with the aftershocks of the pain, my cock still spraying, still desperate to cum for real.

I couldn't tell how much time had gone by with me laying there, maybe hours, but my nut-pain had barely receded. Suddenly, Lolia was standing over me, her eyes on mine. The water glistened on her skin, making her look like a siren that had just stepped out of the sea.

Mom was gone, off to her shopping, leaving me and Lolia alone. She looked at me with a mix of pity and amusement. "You know, Tim," she began, her voice softer now. "You really can be a jerk sometimes."

Her eyes filled with a strange light. "I'll tell you what," she said. "If you promise to be a good boy, I'll. . . you know."

I didn't know, but I still whimpered, "I promise."

My heart pounded in my chest as she reached out and caressed my swelling balls. "But if you don't learn your place, if you don't treat us right," she warned, her hand pressing harder on my balls. "Your next ballbusting will be much worse."

"Aaahh, my balls." I nodded, my voice thick with need. "I'll be a good boy, I swear."

Lolia smiled serenely. She leaned in and kissed my forehead, then my lips. The taste of chlorine mingled with her sweetness, and I felt something inside me snap into place.

When she broke the kiss, she looked at me, her eyes shining. She sat her perfect ass on underside of my still raging hard cock, and all of a sudden, I had entered a different dimension.

Her plump cheeks in a thong-bikini parted, swallowing my cock. "I'll let you have this," she said. "But remember, I'm in charge."

"Yes, Ma'am."

The sensation was better than I'd ever imagined, the way she tightened around me, the way she moaned as my cock kept sinking in deeper and deeper.

Each of our thrusts brought me to a new level of pleasure. Her delicious movements were precise and rhythmic. I pumped into her, the friction of her sweaty cheeks against my shaft driving me wild.

"Good boy," she murmured, her voice thick with desire. "Just like that."

She was in complete control, dictating the pace, the depth, the intensity. And as she kept rocking back into me, taking me in, I knew that I could never go back to the way I was.

She smugly said, "Here's a move I bet mom couldn't do."

Her cheeks clenched even tighter around my cock. Her hips wiggled, bringing me closer and closer. Those tightly clenched cheeks then fucked my cock up and down, over and over. With a final, powerful thrust from both of us, I came. Our hips gyrated harder and faster, my cock spasming deep in her, my cum spurting into the warm, welcoming flesh.

As we caught our breath, Lolia took off her bikini top. She flipped and lay her perfect tits on my chest, "If you keep this up," she whispered, "I might just take off my bottoms and let you cum in my pussy next time."

The promise washed over me like a cool breeze, and I realized that I would do anything, anything at all, to keep her happy, to keep this relationship alive.

The rest of the afternoon was a blur of pleasure and pain, of learning my place in this new world where mom and her were the alphas. And as the sun set, I couldn't help but feel a strange sort of peace settling over me.