Sister's Plan Unravels
Copyright© 2025 by MrCurrie
Chapter 3
Incest Sex Story: Chapter 3 - Jealous of her mother’s affection for her brother, Mia hatches a plan to sabotage his studies—determined to knock him off his pedestal. Narrated from Mia's POV.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa Consensual Heterosexual Fiction Incest Mother Son Brother Sister Pregnancy
Steve arrived late for breakfast, slipping back into his old routine. Avoiding eye contact, his sorrowful expression made it clear he was grappling with guilt over how far things had gotten out of hand the previous night. Every fiber of me longed to rush over, hug him, and offer comfort, but I knew doing so would raise Mom’s suspicions.
Mom noticed his solemn mood and asked, “Everything alright, Steven? You look like you didn’t sleep well last night.”
“I had a lot on my mind, Mom,” he murmured, briefly glancing in my direction. “I’ll be fine after a good meal.”
We ate in silence for the rest of the meal and departed soon after. Throughout the day at work, I replayed our interactions, questioning whether I’d gone too far. Doubts gnawed at me, and by dinner that night, my anxiety had twisted into a tight knot, leaving me a bundle of nerves.
Still concerned about Steve’s mood, Mom asked gently, “How are you feeling tonight, dear? Maybe you should take a night off from studying. A little break wouldn’t hurt.”
“I can’t afford to, Mom,” Steve replied, his tone resolute but subdued.
“If you want to get an early start, I’ll handle the cleanup so Mia can join you,” Mom offered.
“There’s no need, Mom,” he replied, curtly. “I can manage on my own. No point in wasting any more of her time.”
“Nonsense,” I interjected firmly. “I’ve enjoyed helping you, and I’m not giving up now. After our showers, I’ll be right in to pick up where we left off last night—you know, when we were rudely interrupted.” I shot a mock-accusing look at Mom, causing her to grimace with guilt.
“Okay, okay, I get it,” Mom relented, raising her hands in playful surrender. “I won’t worry about how late you two stay up from now on.” She chuckled, lightening the tension that had hung in the air.
After my shower, I carefully selected a different outfit, in case Steve wanted to take a different route than me. A thick blue, cotton top was perfect along with a matching pair of shorts. Both were thick and plush and weren’t as sexy as my previous selections.
Throwing on my robe, I marched to Steve’s room, lightly knocked, and entered. He wore his usual tank top and gym shorts, which gave me a glimmer of hope. Shucking off my robe, he glanced in my direction, took in my new wardrobe, and smiled with approval.
After I settled into my seat, he met my eyes and professed earnestly, “Sis, I’m really sorry about last night. I hope you can forgive me. I promise we’ll stick to studying from now on.”
I gave him a reassuring grin and replied, “No worries, Bro. We’re good. Let’s get to it.”
We made excellent progress, covering more material than usual. After a couple of hours, he leaned back and twisted his neck, the familiar motion signaling his stiffness. “I think that’s enough for tonight,” he said, stretching. “I’m just going to relax now if you want to call it a night.”
I stood and positioned myself behind him as before, massaging his shoulders. He groaned and said, “Thanks, Sis. Your hands always have a way of relaxing me.”
Leaning closer, I whispered in his ear, “Anything for my little brother.” His shoulders tensed as my hot breath washed across his ear. After a few moments, my hand deliberately brushed against his straps, pushing them aside. Seizing both sides of his top, I tugged it upward and explained, “If we get this off, I’ll be able to massage the tops of your shoulders better.”
He eagerly leaned forward, allowing me to pull it over his head. “Sure, Sis,” he replied, his voice cracking slightly, hoarse with a mix of surprise and fervor.
I tossed it to the floor and placed my hands on his hot flesh. My fingers spread out and dug in, causing him to moan and groan. My fingers explored lower, running through his chest hair, causing my breasts to heave with excitement. His hands stopped moving the mouse, his game frozen, much like him.
I leaned closer again and asked, “Want to play a game?”
He hesitated for a minute before finally teasing, “You’ll probably just lose. Maybe you want to just admit defeat right now.”
That was the opening I had hoped for. I gripped his chair and rolled him backward until his knees cleared the desk. “Close your eyes and don’t open them until I tell you,” I ordered.
Once he complied, I removed my top and let it fall to the floor. Moving in front of him, I sat on his lap, facing him, my bare, proud tits on display. Placing my hands on his shoulders, I whispered, “You’re right. I concede. Open your eyes.”
His eyes stared into mine and slowly lowered, widening as he gazed upon my bare breasts.
“You going to just stare or claim your prize?” I asked, my tits shaking as I giggled.
His hands immediately cupped and squeezed my mounds. His smile couldn’t be broader and when he leaned forward, I met his lips with mine. We kissed and explored each others’ bodies as if we were long-lost lovers. When I squeezed his pecs, he reciprocated with my tits. Our nostrils expelled hot air as our mouths meshed together.
After ten glorious minutes of French kissing, his lips and tongue journeyed lower, kissing and licking, until his mouth latched onto one of my taut nipples. He teased, squeezed, and suckled on it, driving me insanely horny. When he switched to the other one, his fingers replaced his mouth. Images of the night when Mom and I blew him through the glory hole flashed before me and an uncontrollable urge overtook me.
Pushing him backward, I dropped to my knees, gripped the waistband of his shorts, and yanked them to his knees. His prick sprung out, standing tall and before it could slam against his smooth stomach, I grasped the base and enveloped his cock with my hot mouth. The musky, manly smell of his genital area flooded my senses, driving me even wilder as I bobbed up and down his rock-hard prick.
“Fuck!” he exclaimed. “I can’t believe you’re sucking my cock and so damn good!”
His fingers ran through my hair, caressing my scalp without applying pressure, allowing me to proceed at my own pace. I’ve known men who tried to forcefully shove me down onto them without regard for my well-being, but not my brother—he’s always considerate of others. I rolled his balls with one hand, while my other pulled his shorts the rest of the way off. My free hand stroked his hairy calf while I continued to fuck his marvelous cock.
His groaning increased as his hips jerked upward. When I felt his prick swell, I relaxed and took him deep into my throat. He gasped as spurts of hot semen filled my mouth. I swallowed as much as I could, but several blobs spilled out the corners of my mouth. I couldn’t fathom how Mom had managed to take it all, but I vowed to do better in the future.
After his cock ceased throbbing, I slowly pulled off and swiped the remnants off my cheeks with my fingers. Licking them clean, I savored the salty taste of my sibling’s seed. I rested my head on his hairy thigh and admired his wilting prick. Suddenly, I felt him grip me under my pits and pick me up. He rose, lifting me off the floor, Moving us to the bed, he plopped me down onto my back. I breathed heavily, still winded from the blowjob.
After his hands gripped my shorts and slid them off, his hands grasped my upper thighs and spread me wide open. I shrieked when his face landed on my horny pussy, his tongue lapping up and down my slit. He sucked and ate me more voraciously than any man had ever done. His tongue sunk in and swirled around my insides before retreating to my entrance.
His lips squeezed my puffy labia, sending shockwaves of pleasure through me. “He had hardly dated. How in the world was he so good at eating pussy?” I asked myself, before realizing he probably watches porn every single night.
“That’s it, baby. Eat your sister’s pussy. You’re doing that so well,” I mewed and moaned while he feasted upon my horny honeypot. After ten minutes of intense pleasure, my body was ready to erupt. When my legs trembled, his hands held me steady as his lips surrounded my engorged clit.
After several squeezes, I grunted and screeched, “Oh god, I’m cumming!”
My pussy convulsed and spewed out my hot juices. He released my bud and slurped up my nectar, never allowing any of it to flow down my crack. A warmth flowed through me as my orgasm passed. I hadn’t felt so content for a long time.
I heard him stand and shifted my gaze upward to see his large, shiny prick jutting outward, fully recovered. His lust-filled expression hinted of painful angst, unsure of whether he should commit the ultimate sinful act with his sister.
Folding my legs upright, I gripped my knees and pulled them forward and outward, opening my juicy pussy to him. “Make your sister happy, sweetie. Fill me with your beautiful cock.”
His face lit up, his smile and eyes reflecting the excitement building in him. He leaned over, rested on his elbows, and slid his mighty spear into my slippery slot. It was a tight fit, but he slowly shoved, staring into my eyes for signs of any discomfort. My pussy walls secreted hot juice, enabling his thick slab of meat to slide in deeper.
His enchanting, blue eyes drilled into my soul and without warning, my pussy convulsed as an orgasm overcame me. He grimaced as his prick took the brunt of my contractions. What little discomfort from his initial entry had passed, leaving a craving to feel his prick stretch and sink in deeply.
“Fuck me, Steve,” I ordered, humping my hips up to swallow more of his cock. He pulled out until his bloated head nestled between my labia, before sinking back in, deeper than before. He fucked me with long strokes, his hard shaft scraping across my velvety walls, spreading them each time his prick descended. My canal tightened each time he pulled back, only to be split apart again by his spongy, fat cock head.
“You’re so fucking tight and wet, Sis,” he blurted, between gasps. “I can’t believe we’re fucking.”
“We are, baby, and it’s wonderful. Pound me hard and fast. Send me to heaven,” I grunted, pulling his head to mine. Our mouths locked together while he deeply thrust his piston in and out of my quivering quim. Our juices flowed freely, splashing out each time his pelvis slammed against mine. His pace never slowed, even when I experienced several more mini-orgasms as he fucked me like no one had before.
Gasping for breath, we reluctantly released our mouths and rested our heads together, side-by-side. He panted and groaned in my ear as I did in his. My hands roamed across his backside, running up and down his slippery, sweaty back as his big hands found my breasts. His hips bucked like a wildman, pummeling my battered pussy with a vengeance.
“Fuck, you’re so tight and wet. I’m going to cum,” he grunted and groaned.
“Me too, baby. Cum in me and claim me as yours,” I urged.
I hugged him closely, feeling his heartbeat against my breasts and after three more strokes, my pussy snapped shut while my body flooded my system with a torrent of endorphins. My body shook and quivered from my explosive orgasm. His prick jerked and pulsed, his climax triggered by my intense spasms.
After committing the ultimate, incestuous sin, he lowered his weight onto me, our hot flesh melding together. We gently kissed and savored the euphoric post-coital bliss.
“That was unbelievable!” he whispered, his voice laced with happiness.
“You got that right,” I replied, giggling. “A lot more fun than studying or even playing a game.”
“As long as you lose each time, I don’t mind,” he answered, sneaking his hand between us and giving one tit a light squeeze. We chuckled and caressed each other, enjoying the close contact.
Exhaustion overtook both of us and I didn’t stir until two hours later. I gently took care not to wake him as I rolled him off me and turned to my side to admire his muscular, sleeping body. Lightly pecking him on the cheek, I rose and slipped on my robe. Grabbing my clothes, I quietly snuck out of his room and made my way to mine, where I crawled into bed and passed out.
The next morning at breakfast, Mom asked me, “So, how did it go last night? I heard your door close well after midnight.”
“We had a lot of material to cover,” Steve replied smoothly, cutting me off before I could come up with a more convincing excuse. “There are a few exams today, and Mia helped me cram for them. We became so focused on studying that we completely lost track of time.”
I almost choked on my food, quickly covering my mouth to stifle a laugh. His deadpan delivery was so flawless that I briefly considered whether he should pursue acting, especially with those ruggedly handsome looks of his.
Mom bought his story and didn’t address it further. Steve resumed eating, periodically glancing at me, sporting a mischievous grin.
After my brother left for school, Mom sighed and remarked, “He seems focused on his studies again. I’m really thankful you’ve helped steer him in the right direction, but I miss spending time with you. It’s lonely in the evenings, and I cherish the old days when we’d chat about anything and everything.”
“I miss those times too, Mom,” I admitted, guilt weighing on me for neglecting her needs. “But after today’s exams, I think he’ll be in a much better place, and I won’t have to help him as much. We’ll have our evenings back soon.”
While working at the store, my mind wrestled with the dilemma of dividing my time between my brother and mother. One thing was certain, I was looking forward to another evening satisfying my horny cravings that had seemed to grow with our incestuous relationship.
After dinner, I slid my robe over my nude body and sauntered down to Steve’s room. I didn’t bother to knock, knowing he would be expecting me. After he greeted me with a wide smile, he asked, “What do you want to start with tonight?”
I replied, “First, we’ll clear your mind and relieve your anxiety, so you can concentrate better.” Walking by him, I shucked off my robe, crawled onto his bed on all fours, rested my head on the mattress, and enticingly wiggled my ass, raised high in the air. I spread my legs, opening up my horny, juicy pussy.
“Fuck!” he exclaimed as he jumped up and stripped. When he drug his cock up and down my slit, I shivered with anticipation. Once he thoroughly coated his prick with our juices, he seated his mushroom-shaped head between my outer folds. It felt larger than the previous night, and I couldn’t wait to feel his length buried inside of me.
When I humped backward, his hands grabbed my soft buns and pulled me into him. Moans escaped from deep within me as his prick once again split me open, filling me with his steel-hard cock. He didn’t stop until his large balls slapped against my mound.
“God, that’s good,” I grunted. “Fuck me fast, sweetie. Your sister is really horny tonight and needs a good hard fucking.”
“That’s what brothers are for—taking care of their older sisters,” he replied, panting, his fingers digging into my flesh. He fucked me steadily for the next twenty minutes, through two of my orgasms. Slowing down, his hands traveled up my body until he held my hanging breasts in his large hands. His pace picked up and I immediately knew his intentions. He was nearing his climax and wanted me to cum with him, sharing my desires to achieve a mutual orgasm.
When his fingertips pinched my hard nipples, a jolt of pleasure shot through my body. My pussy quivered while my body tensed with excitement. “Twist them and fill me, baby! I’m there!” I screeched.
He grunted and pulled my tips while slamming into my body. On my first contraction, I felt the hot splash of semen coat my walls. Each time my pussy walls snapped shut, his cock would eject a blob of potent sperm. The previous night I wasn’t able to experience the feeling of his hot cum filling me, having drained him with my blowjob.
The wonderful feeling of his seed flooding my pussy brought on another powerful orgasm. He continued pumping through my climax, even after his balls had been drained.
Feeling my body fall limp, he slowly withdrew, bringing out blobs of cum. A pool of juices soaked his sheets from our torrid lovemaking. Turning around and seeing the spoils of our joining, I remarked “Looks like my next load of laundry will include your sheets.”
We chuckled while slipping on our robes, not wanting to distract ourselves while studying. After a couple of hours, my mind drifted back to my morning conversation with Mom. Walking close to Steve, who was engrossed in his reading, I kissed his neck and said, “I’m going to spend some time with Mom tonight. She mentioned feeling lonely earlier, and I thought it’d be nice to keep her company for a while.”
He turned to me, kissed me softly, and said, “That sounds like a wonderful idea. I have a lot of reading to catch up on, and it’ll be easier without the distraction of a beautiful, sexy woman nearby.” His mesmerizing blue eyes and irresistible smile almost made me reconsider, but I knew he was right—he needed some time to focus, and Mom needed me.
Stopping by my room to change into my sweats, I headed downstairs and brewed two cups of the tea Mom and I both loved. Carrying the steaming mugs into the living room, I found her engrossed in a book. “Is that our favorite tea?” she asked, placing the book on the table with a smile. “How thoughtful of you.”
“It is, Mom,” I said, handing her a cup. “Steve’s busy reading and I thought it’d be nice to spend some time together. Maybe we could chat for a bit and watch a sitcom?”
“Wonderful!” Mom exclaimed, her face lighting up with excitement.
After a few hours of laughter and conversation, Mom excused herself to bed, leaving me to tidy up the kitchen. A sense of accomplishment washed over me; I’d managed to balance my time between my brother and mother. Feeling content, I headed to my room and settled into bed.
Lying there, I idly scrolled through my phone, my thoughts drifting to what lay ahead when a text popped up from Steve: “Mia, you awake?”
“Yes,” I replied. “Mom and I enjoyed a pleasant evening together. Did you finish your reading?”
“I did,” he replied. “I’m glad you were able to connect with Mom again. We should continue it from now on.”
“I agree. Good night,” I signed off.
Ten minutes later another text popped up from him, “I miss you. Your soft, warm body relaxes me more than anything.”
Without answering, I tore off my nightclothes and slipped on my robe. Tiptoeing down the hallway, I carefully opened his door, stepped inside, and closed it without making a noise. Throwing off my robe, I slipped under his covers and snuggled up to him, facing him, my breasts touching his chest.
“Is this a good idea?” he asked.
“I missed you, too,” I replied. “I need you.”
Gently pushing him flat on his back, my hands roamed over his body until I gripped his rock-hard prick, already oozing pre-cum. Straddling him, I held his staff and lowered myself onto his upright pole. He slid in easily, my hungry, juicy pussy gobbling up his cock. It felt more than right, it was the perfect fit, like it was made for my pussy, touching and stimulating every square inch of sensitive flesh.
Gripping his ribs, I rode him, twisting and turning my body until his cock scraped the desired spots. Moonlight streamed softly through the window, casting a gentle glow on his face, illuminating a look of pure happiness. I loved pleasing him and each day I could feel our connection strengthening, a sibling love that no one else would ever understand.
After riding him for twenty minutes, I felt his chest heaving, his face straining to refrain from cumming, desiring to wait for me. Feeling my body tingle with excitement, I lowered my body to his and kissed him. His arms wrapped around me and embraced me closely, as we French kissed as lovers.
Pausing our kiss, I urged, “Finish me off, sweetie. I’m more than ready for you to pump me hard and fill your sister with cum.”
His hands descended to my buns and clasped them tightly. His hips banged upward, driving his cock in deeply while pulling my pelvis into his. I kissed him again and we both groaned into each other’s mouths when he erupted, his cock shooting out a rope of sticky semen.
My orgasm exploded a stroke later, my pussy expertly milking his prick, pulling his precious seed out of his bloated balls. We maintained our kiss while we made love, our eyes locked together, conveying the love we held for each other.
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