Mom Steps in for Sis
Copyright© 2025 by MrCurrie
Chapter 4
Incest Sex Story: Chapter 4 - This is the second story in the series, 'The Bonds We Build', and should be read after 'Sister's Plan Unravels'. After Steve's sister moves to another city, his mother, Lydia, helps him study.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa Consensual Heterosexual Fiction Incest Mother Son Brother Sister Daughter Pregnancy
I woke the next morning feeling refreshed after a deep and restful sleep. Mom had already left for the kitchen, but that didn’t surprise me—she always had a knack for slipping out quietly without waking me. After a quick trip to the bathroom, I hopped into the shower, letting the warm water wash away the lingering sweat and sex juices from the night before. Feeling refreshed, I threw on my robe and headed downstairs, ready to lend a hand in the kitchen.
When I entered, the table stood bare—no plates, no centerpiece, not even a stray napkin or silverware. It was an empty canvas, waiting for me to complete my usual routine of setting it.
Mom stood at the stove, dressed in her usual robe, though her hair wasn’t tied back in its familiar ponytail. I walked up behind her, gently gathered a swath of her hair, and swept it to the side. Leaning in, I kissed her neck, breathing in the intoxicating scent of her strawberry shampoo. “Good morning, Mom. You smell nice this morning. Already take your shower?” I asked, deeply inhaling her scent.
She paused, tended to the stove, and swiveled around to face me, her cheerful and sexy expression exciting me. “Good morning. And yes, I showered—I felt a bit grimy from our strenuous workout last night.”
Her fingers nimbly untied my cotton strap and snaked into the opening to grasp my ribs. Swiping her tongue across her lips, moistening them, she purred, “Don’t you think I deserve more than a peck on my neck, now that you’re more than my son? Or didn’t you understand my hint from last night, that I’m your lover now, willing to do anything to please you?”
Finding her robe already open, my hands cupped her bare breasts as my mouth met hers. We kissed as lovers, our eyes locked together. While we savored the gentle and sensuous kiss, our hands explored our nude bodies. My fingertips surrounded her hard nipples and gently squeezed them, causing her to groan in my mouth. After teasing her for several minutes, she turned us around and backed us to the table.
When her ass bumped against the edge, her hands ran up my back and held onto my shoulders. “Put me onto the table,” she croaked, her voice filled with lust.
Grabbing her ass, I lifted her and positioned her on the edge. Her legs wrapped around me as her hand wrapped around my prick. While we kissed, she pulled my cock to the entrance of her soaked pussy. “Fuck me, baby. Ram that big prick into your horny mother!” she begged, her voice reeking of carnal lust.
I shoved, finding no resistance, her channel already slick and wet with her juices. Her velvety walls welcomed my return, clinging onto my shaft and sucking me into her depths. Her hips thrust up rapidly, setting our pace. She needed a fast and furious fuck from her son, and I was only too glad to comply. While I pawed at her meaty breasts, I slammed into her pussy. Her hands gripped my sides, her fingers digging in between my ribs, using me to steady herself.
After ten minutes of rutting like animals in heat, we fought for air, nestling our heads side-by-side, panting and gasping for air. “You’re fucking me so good, baby!” she exclaimed. “Claim my pussy and fill me. Cum with me.”
My thrusts drove deeper and harder as my hands lowered to her ass, pulling her pussy into my groin, burying my cock in her tight sheath. When my prick swelled, her pussy snapped shut, her velvety walls pulsing and quivering around my shaft. A blob of thick cream shot out as my bulbous head banged against her cervix. She wailed with carnal lust as my prick continued to fill her hungry pussy.
Each powerful thrust brought out a grunt from both of us as we enjoyed climaxing together. After my balls were drained, I kissed her, and a warm wave of bliss washed over me as I gazed into her radiant, joy-filled face, her beauty captivating me completely.
After basking in the afterglow of post-coital mating, she kissed me gently and purred, “Now that’s a good morning kiss. Or do you want me to go back to tying my hair in a ponytail?”
We giggled as she unwrapped her legs. When I slowly pulled my cum-coated cock out of her filled pussy, several streams of cum drooled out of her gash. Her fingers deftly scooped up the creamy-white globs and jammed them into her mouth. “Tasty,” she remarked, with a seductive smile, sucking her cum-coated fingers. “A protein shake wouldn’t be a bad way to start the day.”
My smile broadened as I thought about being on the receiving end of one of her world-class blowjobs. She gently pushed me, noting, “Let me finish preparing breakfast. We have a big day ahead of us.”
She turned the burners back on and picked up where she had left off, while I busied myself setting the table and pouring the orange juice and coffee. Our conversations had always been natural and easygoing, but now there was a newfound openness between us, with no topics off-limits and nothing holding us back.
Addressing Mom’s comment about plans for the day, I asked, “So, what’s on the agenda today?”
“Pretty much the usual,” she replied, “but I’ll be picking the dining venue for tonight. Let’s tackle our chores this morning, break at noon for a light lunch, and aim to wrap up everything by five. After that, we’ll shower and head out for dinner.”
“Looks like we’ll be taking a lot of showers from now on,” I noted, giggling. “We could save some water by taking them together.”
She smiled and answered, “And I thought I was a naughty mother. What kind of son wants to shower with his mother?”
“All of them,” I replied, filling the room with our chuckles.
The day went by slower than anticipated as we ran late. We decided to shower and dress separately so as not to delay us any further. Before I headed to my room, Mom instructed, “Pick out a long-sleeved shirt to wear tonight.”
When finished, I met her in the living room. I drank in her beauty before remarking, “You look absolutely stunning, Mom.” Paying particular attention to her perfectly done hair and makeup, I asked, “Is that the same lipstick?”
“Yes, it is,” she answered, smiling appreciatively. “You picked it out and as I’ve said before, I’ll do anything to please the man in my life.”
Her sexy smile sent shivers down my spine, reminding me that she was more than my mother now—she was my lover. My eyes wandered to her floral-printed, billowy skirt, which ended just above her knees, before rising to her cozy, fleece top. The combination of her outfit and her earlier suggestion about my shirt made me suspect we might be dining outdoors.
While my focus remained on her outfit, Mom interrupted me, saying, “Our ride is here. Let’s go.”
Curious about her intentions, I followed her outside to a waiting car marked with a Lyft sticker. Helping her into the back seat, I walked around to the other side and climbed in. The driver turned to us and asked, “Mr. and Mrs. Wilson?”
“Yes,” Mom replied curtly, with a warm smile.
Without further conversation, the driver set off. The route was familiar—the one leading to the restaurant by the river. Assuming that was her plan, I relaxed into the seat. But to my surprise, we passed the restaurant and continued for another mile. Finally, the car pulled up to a large dock lined with moored boats.
Stepping out, Mom tipped and rated the driver on her phone before slipping her arm through mine, her excitement palpable as she led me down the plankway. At the very end of the dock was a medium-sized party boat, with a middle-aged man standing beside it. As we approached, its details came into view—a river cruise boat with a seat at the back for the pilot and a charming covered area in the middle.
Underneath the canopy, a cozy loveseat awaited us, placed behind a table adorned with a simple yet elegant vase holding a single red rose. The sight took my breath away. It was far more romantic than anything I could have ever imagined doing, and I silently kicked myself for not showering Mia with the same attention.
The man, slightly portly and jovial, introduced himself with a warm smile, saying, “You can call me Skipper.” We couldn’t help but chuckle when he added with a playful twinkle in his eye, “Are you ready for your three-hour tour?”
He gestured toward the loveseat, assisting us as we settled comfortably into the cushioned seat. Once we were seated, he leaned slightly forward and began explaining the details of our upcoming trip. His voice was friendly but professional as he walked us through a quick safety talk, ensuring we felt both secure and excited for the adventure ahead. Once we were underway, Skipper remained behind the covering, giving us the privacy we desired.
The quiet hum of the electric motor created a serene atmosphere, and the soft sound of the waves gently lapping against the bow was the only noise, adding to the intimate ambiance of the moment.
I wrapped my arm around her, pulling her close as we savored the peaceful riverbanks, lined with majestic estates, drifting by. The gentle sway of the boat and the quiet atmosphere made it feel like we were in our own world, the serenity broken only by the occasional ripple of the water. After an hour, Skipper steered the boat onto a large, empty sandbar.
He busied himself for a moment, rustling around the boat, before he appeared with our entrees—perfectly cooked salmon, crisp asparagus, and creamy mashed potatoes. With a practiced ease, he set our dishes down on the table before returning to bring over two glasses and a bottle of wine. He filled both glasses with a generous pour and offered a cheerful, “Bon appétit,” his smile wide.
“When you’re finished, just let me know, and we’ll continue,” he added, before stepping back to allow us to enjoy our meal in peace.
Raising our glasses, I smiled at her and toasted, “To the most beautiful woman in the world. I love you, Lydia.”
She beamed, her eyes soft with affection, acknowledging me referring to her by name instead of Mom. To my handsome man, whom I love so dearly.” She gently tapped her glass against mine before we shared a light kiss. After savoring the moment, we dug into our meal, our appetites hearty from the long day. We finished quickly, content, and satisfied.
When she nodded to me, I announced loud enough for him to hear, “Skipper, we’re all done here.”
With a swift and practiced motion, Skipper whisked our plates and silverware away, leaving only the wine and glasses. He returned, carrying a single serving of crème brûlée, two spoons nestled beside the dish. Mom’s smile, radiant and knowing, filled me with warmth as I realized she remembered the dessert we shared on our first date. It was a beautiful reminder of how far we had come. We fed each other bites of the decadent treat, savoring the sweetness of the dessert. Each spoonful was a moment of shared joy, and when finished, we gently notified Skipper.
Once he returned to his station at the helm, he gracefully maneuvered the boat as he turned it around to begin our journey home.
As we drifted away from the sandbar, soft, romantic music began to play from the speakers mounted in the boat’s covering, adding to the intimate atmosphere. We snuggled closer, enjoying the cool evening air as we sipped our wine.
It was the most romantic evening I’d ever experienced, made even more special by sharing it with someone I loved so deeply. We turned toward each other, drawn by an irresistible pull, and as our lips met, the sight of her glowing, beautiful face made my heart race with affection. In that moment, everything else faded away, leaving just the warmth of our embrace. We held each other close, savoring the feeling of being so perfectly in sync, our kisses soft and tender, each one a sweet exchange of unspoken words, our love growing deeper with every touch.
While our mouths savored the taste of each other, her hand lowered to my belt, unbuckling it. Unbuttoning my pants, she unzipped me and fished her hand into my underwear to find my hardening cock. Her long, sinewy fingers wrapped around it and squeezed, bringing it to full life.
After several strokes, she knelt on the padded boat floor, gripped my pants and underwear by the sides, and yanked them down together, until they were at my ankles. She kissed along one thigh, while her warm, soft hand caressed the other.
My prick obscenely pointed into the air, my groans matching the volume of the music. When her mouth enveloped my ridged crown and her tongue swiped around it, waves of pleasure shot through me. She slowly lowered her mouth onto my pole, sucking and washing the sides with her tongue. My hands ran through her silky hair, massaging her scalp while she paid homage to my prick—her son’s prick.
With her mouth stuffed full of my cock, she looked up at me, her eyes reflecting the love and admiration she held for me. Her past words of commitment flashed before me, “I’ll do anything to please the man in my life.” It was an unbelievable feeling, knowing my mother was so much in love with me that she’d do whatever it took to make me happy. After ten minutes of enjoying her blissful blowjob, she pulled off, saliva dripping off her lips coating my shiny prick.
She rose, her sexy smile and eyes focused on mine. She lifted her skirt by the sides and rested on my bare legs. Reaching down, she held my prick by the base, scooted closer, and raised her hips a few inches before guiding my throbbing prick into her soaked slot. She kissed me while lowering herself onto my cock, moaning as her walls spread apart from my invading, fleshy spear. When my prick was buried to the hilt, she ground her hips around, enjoying the feel of my shaft rubbing against her engorged labia.
“How do you like the ride, now?” she asked, her voice and eyes filled with lust. “Unbelievable. Nice touch not wearing panties. You’ve really thought this through,” I marveled.
“It’s all part of making our first weekend together unforgettable,” she replied, her smile soft and knowing. “I was lucky an opening came up—these cruises are quite popular.”
“I can imagine,” I agreed. “When did you arrange all of this?”
“The day after our first date,” she revealed casually, her eyes twinkling with a hint of playfulness.
“Really? How did you know that far ahead we’d be together?” I asked, astounded at her foresight.
She smiled warmly, her gaze steady. “A little bit of luck, and it’s refundable if you do it a week out. But honestly, after our date last Saturday night, I knew it wouldn’t be necessary. All that was left was to guide you through the week.”
Her words filled me with awe, and at that moment, I realized just how much she had already thought about us—how far ahead she had planned our happiness as if she knew exactly what we needed even before I did. “You’re full of surprises and I love every one of them—and you,” I confessed, kissing her.
She rocked up and down, fucking herself on my cock as we kissed as lovers. Snaking my hands underneath her blouse, I ran them up until they were filled with her bare breasts. Squeezing them brought a long moan from her as her hips bounced faster on my hard prick.
Our tongues danced together as we enjoyed the slow, sensual, incestuous mating. After ten minutes of blissfully making love, we ended our kiss and breathed deeply, our hearts racing. Her breasts heaved in my hot hands, as my fingertips surrounded her puffy areolas. Pinching her nipples and twisting them brought out a scream of passion as her pussy tightened around my prick, drenching it with her juices. When her convulsions ceased, she paused humping me, keeping my hard prick seated in her snug snatch.
After she caught her breath, she whispered in my ear, “I love you so much, baby. Your prick is the perfect fit, like it was made for my pussy.”
“I love fucking you, Mom and I love you, too. Or should I say Lydia” I replied, chuckling.
“Tonight, with my horny pussy full of my son’s cock, I’m fine with being your mom,” she said, wiggling her pelvis, stirring her pot with my fleshy meat stick.”You’re the best motherfucker in the world.”
After several minutes of enjoying being joined together, the waves grew stronger, making the boat bob and sway more noticeable than before. She grunted each time her body bounced, my cock jabbing in deeper.
Her hips humped in sync with the waves, fucking my pole once again. Her moans increased in length and volume as her body ramped up to another orgasm. Wrapping her arms around me, her hands gripped the tops of my shoulders, giving her more leverage to hump up and down.
“Help me, baby,” she purred, her hot breath bathing my ear. “Hold my ass and pound your marvelous cock into me. Cum with me and fill me with your sperm. Fuck your mother hard!”
Lowering my hands, I grasped her round, soft ass cheeks and helped raise and lower her body onto mine. We soon slipped into a rhythm where her thrusts matched my own. I fucked her steadily faster, putting all my energy into driving my prick into her as hard and deep as possible.
Finally, she screamed, “Fuck! I’m cumming on your big cock again!” Skipper had to have heard her but neither of us cared, immersed in the throes of carnal lust. Her body shook and tensed as her pussy squeezed my cock, causing my balls to send out the first blob of sperm.
“Oh, Mom!” I grunted, as my prick succumbed to her clenching channel. When she felt my prick spraying her insides with hot cum, her pussy contracted with each jerk and pulse.
She hugged me tightly as her quivering quim clung to my spitting hose.
My fingers dug into her ass flesh, holding her steady while her body writhed and twisted, trying to extend the orgasmic bliss she experienced from fucking her son. The exquisite sensation of fucking my mother was something I would never tire of. It wasn’t only her tight, clinging, wet pussy, but the unbridled passion and vigor she displayed, throwing herself completely in the act of love.
When her hips ceased humping and my balls had been emptied, I moved my hands up and embraced her, holding her tightly to my body. We remained melded together as one, my soft prick trapped in her snug pussy.
When the dock lights came into view, she lifted her dripping pussy off my cock, smoothed out her dress, and sat beside me. While I dressed, she arranged for a Lyft to pick us up.
When the boat glided to a stop and gently nudged the dock, Skipper quickly secured it with expertly tied knots. He stepped forward to assist us onto the dock, his warm smile accompanied by a polite, “I hope you both enjoyed the evening. Safe travels.”
Though he maintained a professional demeanor, there was a knowing glint in his eye that suggested he was well aware of what goes on in the front of the boat. His straight face and his attentiveness to every detail most likely earned him generous tips.
When we stepped off the plankway, a young man about my age stood waiting beside his car, the only one in sight. As we approached, he called out, “Wilsons?”
“That’s us. Thanks for waiting,” Mom replied warmly.
“No problem. I’m Dave, and if you’re ready, we’ll get you two home in a jiffy,” he said, opening the door for Mom with a courteous smile.
I walked to the other side, slipped into the car, and couldn’t help but wonder if his gesture was routine or reserved for a beautiful woman—not that I could blame him.
Once the car began moving, Mom pulled out her phone and started typing. Catching my curious glance, she explained, “Just tipping for the cruise dinner.”
Dave’s gaze flickered to the rearview mirror, meeting ours briefly. Overhearing Mom’s comment, he chimed in, “Did you enjoy your evening with Skipper?”
“We did,” Mom replied with a smile. “He’s very professional and an excellent host. Have you been out with him before?” she asked, genuinely interested.
“Yes, my mom and I went out in the spring,” he admitted, his tone softening as if revealing something personal. “It was her graduation gift to me. I’ll remember that night forever.”
His voice trailed off slightly, and I could tell the memory meant a lot to him. Mom and I looked at each other, our eyes communicating our thoughts. We kissed several times on the way home while Dave glanced and watched the two lovers in his backseat.
When we were just two blocks from home, Mom spoke, loud enough for Dave to hear, “Tonight has been a wonderful evening, don’t you think?”
“It’s been an unbelievable experience and very romantic. Thanks so much, Lydia,” I replied.
A mischievous grin spread across her lips as she spoke, even louder, “I arranged everything so far. It’s your turn now. I want you to carry me into my bedroom, strip my clothes off, and ravage my horny pussy. Mommy needs a good fucking.”
Dave’s head quickly turned toward the rearview mirror, his eyes crinkling with a smile that softened his expression. If he hadn’t guessed it yet, Mom confirmed that we were a mother and son out on a fuck date.
As we pulled up to our house, Dave swiftly exited and opened the door for Mom, his smile wide and knowing.
Before he could return to the driver’s seat, Mom, her voice kind but firm, said, “Dave, I’m tipping you enough for you to take your mother out to dinner. Will you promise me you’ll do that?”
Dave’s eyes lit up with gratitude. “Yes, ma’am,” he replied earnestly. “We go out for dinner every Sunday night, so it’ll be tomorrow. Thank you so much, and I hope you both enjoy the rest of your evening.”
After he drove away, we walked up to the house, our arms interlaced. Opening the front door, I remarked, “I’m willing to bet that Dave’s Mom is going to get a good fucking tonight.”
Mom giggled and replied, “Most definitely. Did you notice his good manners and appreciative looks for an older woman? His mother has taught him well and I’m betting she’s rewarding him with her wet, tight pussy. I can only hope that I get as good of fucking from my son tonight as she is.”
Fulfilling Mom’s wishes, we fucked, rested, then fucked again, and once more rested, before concluding the night making love. When both of our sexual appetites had been satiated, she lay on top of me, her soft, warm body melded to mine. I hugged her tightly and said, “Tonight, you sleep on top of me. I love feeling your body on mine.” Glancing around at her expansive bedroom, I remarked, “You know, Mom. Maybe I should just move in here with you since I’ll be sleeping here most of the time anyway.”
“I’d love nothing more, but at some point, your sister will return and it might be a little awkward to explain why her brother is sleeping with her mother,” she expressed, her voice tinged with regret.
And there it was—the guilty feeling that always swept through me when she mentioned my sister. It gnawed on me more than it should have and I vowed to discuss it with Mia the following night when we talked. Until then, I would relish the feeling of my naked mother on top of my body.
Sunday started out much the same as Saturday, with a nourishing breakfast with a side of Mommy pussy. Although Mom’s sexual appetite had rapidly grown and she desired more of her son’s attention through the day, I held off, wanting her to be extra horny by evening. I didn’t have any studies to catch up on, so I devoted most of the day to working outside.
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