The 24-hour Marathon - Cover

The 24-hour Marathon

Copyright© 2024 by Neal Greer

Prologue

Erotica Sex Story: Prologue - James, 18, must maintain an erection for 24 hours for medical reasons. His mom, Nancy, helps him, and they're later joined by her friends. They all take turns pleasuring James, and he has multiple orgasms throughout the night and day.

Caution: This Erotica Sex Story contains strong sexual content, including mt/Fa   Fa/Fa   Fiction   Mother   Group Sex   Cream Pie   First   Facial   Oral Sex   Doctor/Nurse  

3:00pm

James stood nervously in the examination room, the stark white walls closing in around him. Today marked his transition into adulthood, and his mother, Nancy, was there to ensure he received a clean bill of health. He glanced at her, noting her perfectly manicured nails and the heavy eyeliner that made her eyes appear like dark pools. Not to mention her hourglass shape. She offered him a reassuring smile, which eased his anxiety just a bit.

James felt his cheeks flush with embarrassment. Changing in front of his mother was uncomfortable, but he knew she meant well. He had always been a skinny kid, and now, on his 18th birthday, he hoped his body would finally start to fill out.

“Mom, I really don’t think I need to change in front of you,” he mumbled, his face growing warmer.

“You know, I used to change your diapers all the time,” she replied, her voice soft and soothing. “This shouldn’t be any different.”

Reluctantly, he undressed slowly, feeling self-conscious as he slipped off his shirt and pants. Nancy watched him, her gaze taking in his slender frame. He noticed her surprise but tried to ignore it.

“Wow, James. You’re really growing up,” she said, attempting to keep her tone light.

James blushed even deeper as he quickly donned the medical gown. At that moment, the door opened, and Dr. Rebecca Johnson walked in. She was a tall, slender woman with short gray hair and piercing blue eyes. Though he felt a bit intimidated, he tried to mask it as she greeted him warmly.

“Happy birthday, James,” she said, her voice filled with warmth. “You may not remember me, but I examined you when you were younger. Let’s make sure your newly 18-year-old self is in tip-top shape.”

She began her examination, checking his eyes, ears, and mouth. James tried to relax, but he felt self-conscious as she asked about his health and lifestyle. He knew he should be honest, but some of his answers made him feel embarrassed.

“Now, I need to take a look at your sensitive area,” Dr. Johnson said, as she knelt down.

James’s heart raced as she lifted his gown. He knew he should look away, but he couldn’t help stealing a glance at her. She was so close, her face just inches from him.

“Wow,” she said, her voice filled with surprise. “You’re really packing a punch there, James. You’re a big boy.”

James felt a mix of pride and nervousness. He had always been self-conscious about his size, but hearing her comment was unexpected.

“Do you have any concerns related to its size? Is it a problem?” Nancy asked, her gaze fixed on him.

“Well, it can be, but I need to take a closer look.” Dr. Johnson gently examined him, her fingers exploring. James felt a rush of pleasure wash over him as he began to harden, an unfamiliar sensation.

“Nancy, would you mind coming over here and taking a look with me?” Dr. Johnson asked, motioning for her to join. “I want to show you something.”

Nancy hesitated however eventually approached, her eyes wide with curiosity.

“Feel the underside here,” Dr. Johnson said, guiding Nancy’s hand. “Can you feel that on either side of the base? Those are the corpus cavernosa tissues. They play a role in erections and contribute to James’s size.”

Nancy nodded, her focus unwavering. James felt a mix of pride and embarrassment, unable to believe he was exposed in front of both women.

“Oh, wow. It is quite large,” Nancy said, her voice steady.

Suddenly, a wave of pleasure surged through him, and he moaned as he ejaculated, a rush of warmth spilling over both women’s hands.

Dr. Johnson stood up, laughing, and handed Nancy a towel to clean her fingers. “Well, that’s one way to celebrate your 18th birthday,” she said, amusement in her voice. “James, you made quite a mess. Go ahead and get dressed, honey.”

As James pulled on his clothes, Dr. Johnson continued, “Well, Nancy, sometimes when a penis is as large as James’s, the tissues can struggle to maintain a consistent erection.”

Nancy’s expression shifted to concern, her hand covering her mouth.

“It’s probably nothing to worry about,” Dr. Johnson reassured her. “But I need to check on him again tomorrow. In the meantime,” she added, looking at James, “he will need to maintain a constant erection for 24 hours.”

James’s face turned bright red. “How am I supposed to do that?”

“I’m sure you’ll think of a way,” Dr. Johnson replied with a wink. She glanced at Nancy, adding, “I suspect James will ejaculate a dozen or more times during these 24 hours. That’s completely normal, and he shouldn’t hold back. The most important part is that he remains erect for the entire duration.”

4:00pm The drive home was silent until the car pulled into the suburban driveway. “James, I know this is all so strange,” Nancy said, pulling the car in the garage, “but the doctor said it is important. I will help you however I can. Okay, baby?” James just nodded, keeping his head turned facing out the passenger window.

“Come on, James,” she said as they walked in the door. “Let’s get you undress and settled on the couch and see if we can’t take care of this little problem.”

James was a bit nervous as he stripped off his clothes and sat down on the couch. But Nancy didn’t seem to notice his discomfort. She sat down next to him and turned on the television, flipping through the channels until she found a pornography channel.

“There we go,” she said, settling back against the cushions. “This should do the trick.”

A movie of a black man pounding a young white woman played on the television while James found his rhythm, stroking his long penis up and down. Nancy stood and watch the television for a minute before looking over to James.

“This is so weird, mom.”

“I know it is, baby,” she replied as she settled down on the couch next to him. “But it’s for your health. I think it’s important and I’m here to help you. You’re all I’ve got, you know.”

She leaned over, rested her head on his shoulder, and started rubbing his chest and belly.

“Plus, James,” she said, her voice soft and soothing. “You’re a big boy now. You can handle this.”

It felt strange at first, but Nancy’s gentle encouragement helped him relax. She moved her hand down to his thigh, rubbing it gently as she watched the television with her son.

About 30 minutes later another pornographic movie started. The title came up, “My Mother is My Lover,” and Nancy let out a little giggle. James’s eyes were glued to the television as the movie showed a young man and a middle-aged woman flirting and then engaging in heavy petting. Enthralled with the movie, James’s pace quickened, while the woman on the television began to lick and suck the young man’s erection. James let out a moan and Nancy glanced over to see precum pooling at James’s opening.

Another 30 minutes later and the woman on the screen was riding the young man’s long erection, screaming, “Cum for mommy!”

James’s heart was racing as he felt himself getting closer and closer to orgasm. He had never been this turned on before, and he couldn’t believe that his mother was sitting right next to him with her head on his shoulder as they watched porn together.

“That’s it, James,” Nancy whispered, her voice thick with desire. “You’re such a good boy. You’re going to make yourself cum for me, aren’t you?”

James nodded, unable to speak. He was so close now, and he knew that he wasn’t going to be able to hold back much longer.

“Good boy,” Nancy said, her voice filled with pride. “Cum for me, James. Show me what a big boy you are.”

And with that, James let go. He moaned as he came, his semen spurting out onto his stomach and Nancy’s hand. She didn’t seem to mind, though. She just kept rubbing his stomach, spreading the cum around, encouraging him as he caught his breath.

“That’s it, James,” she said, her voice gentle and soothing. “You did so well. You’re such a sweet boy.”

As the two of them sat there on the couch, another porno movie was just beginning. This one about an older man with two younger women. Nancy leaned over and kissed James on the cheek. “See, this isn’t so bad, is it? Make sure to keep going so you don’t get soft.”

James nodded, moving his hand up and down slowly. He looked over at Nancy, his eyes lingered in the cleavage of her low-cut blouse.

Nancy noticed James staring at her and gave him a knowing smile. “Do you like what you see, sweetheart?” she asked, her voice low and sultry.

James blushed and looked away. “I’m sorry, Mom. I didn’t mean to stare.”

Nancy chuckled and leaned back against the couch. “It’s okay, James. I know I’m not exactly a spring chicken, but I still have my charms.”

They continued to watch the porn together while James stroked himself with long, slow movements, and Nancy traced her fingernails along his thigh.

“James, baby, is your hand getting tired?”

James’s eyes turned to Nancy in a blank stare.

“Because, I could give you some help with that, sweetheart,” her voice barely above a whisper.

James felt his heart race. He wasn’t sure how to react. But Nancy seemed so confident, so sure of herself. He couldn’t help but feel drawn to her.

“Yes, Mom,” James whispered, his voice trembling.

Nancy gave James a small smile and lean in to kiss his cheek. One of her hand inched up from this thighs and began massaging his testicles while the other began to stroke the entire length of his erection, lingering at the head before returning to the base. James moaned as he felt her soft hands on his hardness. He had never felt anything like this before, and he couldn’t help but feel a sense of excitement wash over him. James wasn’t as interested in the movie anymore. His eyes remained attached to Nancy’s cleavage and he watch the ripples move across her skin as now both of her hands were wrapped around his rigid erection moving up and down in a steady rhythm.

His mother’s touch was gentle yet firm, sending waves of pleasure through his body. He watched her body as she stroked him for another half hour.

“Good boy,” Nancy murmured, increasing her speed. “You’re so big, James. You’re bigger than your father ever was.”

James blushed, embarrassed yet thrilled by his mother’s words.

“You know, your father and I were quite fierce lovers.”

James face continued to redden.

“One time, your father and I were at a drive-in movie,” she whispered, her hands never stopping their rhythm. “I was riding him in the back seat, my breasts were bouncing in his face and I was screaming his name.” She let out a giggle, “I’m sure every car in the lot could hear us.”

James groaned, his balls tightening as he felt his orgasm building. Nancy’s words were pushing him over the edge.

“He came so hard, I could feel his seed filling me up.”

“Oh, mom,” James moaned, his hips thrusting upwards as he came hard.

Nancy smiled, watching as her son’s face contorted in pleasure. She continued to stroke him gently, helping him ride out his orgasm.

“Oh wow, good boy,” she murmured, pressing a soft kiss to his forehead. “You are making mommy so proud.”

7:00pm Nancy continued to stroke and was just returning to her rhythm when there was a knock on the door. Nancy scrambled to find a blanket and covered James’s lap and legs with it. She clicked the remote to turn off the television and bounced to the front door.

Nancy opened the door to the three middle-aged women, all of whom were friends from church. Suzy was James’s Sunday school teacher, Barbara was the mother of James’s best friend, and Debbie was the wife of the church’s pastor.

“Nancy, we’re here for our book club meeting,” Suzy said with a warm smile.

Nancy’s face fell. “Oh, I completely forgot. I’m so sorry, but I have to cancel this evening.”

Barbara’s eyes narrowed. “Is everything okay?”

Nancy’s mind raced, trying to come up with a way to get rid of her unwanted guests. She couldn’t very well tell them about James’s little ... problem. He was already mortified enough as it was.

Nancy hesitated for a moment before nodding. “Yes, it’s just ... James is having some medical problems I am helping him with. So I can’t host our book club this evening.”

Debbie’s eyes widened. “Oh my. That sounds serious. Is there anything we can do to help?”

Not wanting to reveal too many details, Nancy replies, “Oh no, I don’t want to impose on you ladies and take up all your time. Caring for James will take all evening and night, and into tomorrow as well.”

“Actually, our husbands are gone for the week on a fishing trip,” replied Suzy. “We having nothing but time.”

Seeing the women were insistent, Nancy hesitated, unsure of what to say. She didn’t want to put her friends in an awkward position, but she also didn’t want to turn down their offer of help.

“Face it, Nancy,” said Barbara, “we’re going to help you. Plus Suzy and I used to be nurses. There’s no medical issue we haven’t already seen.”

Nancy’s heart sank as she realized there was no way to get rid of the women now. She sighed and stepped aside, gesturing for them to come in. “Fine. But this is a very sensitive issue. You have to promise not to tell anyone about it.”

The women, intrigued, nodded eagerly and followed Nancy into the living room, where James sat on the couch, a blanket draped over his lap. Nancy could see the outline of his enormous penis through the fabric, and she felt a twinge of guilt for putting him in this position.

James’s face turned bright red as the women walked into the room, their eyes wide with curiosity and excitement at his obvious erection. Nancy could see the fear and embarrassment in his eyes, and she wished more than anything that she could take it all away.

“I’m so sorry, honey,” Nancy pleaded, “I forgot the ladies were coming over for book club and when I said you had a medical issue they insisted on helping.”

“Um, what?” said James, his eyes widening has his heart began pounding even harder.

“I don’t think I can do it all by myself, baby,” Nancy pleaded. “And the women insisted.”

“But, mom!” James began when he was cut off by Debbie.

“Now James,” she said warmly, “part of being a community is helping one another. And we are here to help you mother. And you.” Then, turning to Nancy, “Okay, what’s the problem and how can we help.”

Nancy sat down next to James. The blanket was pulled up past his belly button and Nancy placed her hand over the blanket on his thigh, just inches from his obvious penis that stretched up, almost poking out of the top.

Nancy explained the problem to the women, repeating the exact details that Dr. Johnson had told her earlier that day.

“So,” Nancy concluded, “James needs to remain stimulated for about 20 more hours, when I’ll take him to his next appointment.”

“I stand corrected,” Barbara said, “this is a medical issue I have not seen.”

“I don’t think this is the kind of way a community helps each other, Mrs. Debbie.” James said.

“You’re wrong, James,” she replied, sitting down on the couch next to him, opposite Nancy. She placed her hand on the blanket on his other thigh. “This is exactly the kind of thing that community is for.”

“Don’t be embarrassed, James,” Suzy said, her voice gentle and soothing as she sat down next to Debbie. “We’re here to help you, not to judge you.”

“That’s right,” Barbara added, sitting down next to Nancy. “We’re all adults here. There’s no need to be ashamed of your body or your desires.”

James nodded, but Nancy could see that he was still uncomfortable. She bit her lip, trying to think of a way to make him feel more at ease.

“How about I continue to help James,” suggested Nancy, “and we can all chat for a while. Maybe it will help James feel more comfortable. It will be like he isn’t even here.”

The women agreed and a minute later everyone was sitting on the couch, James in the middle next to his mother with Barbara on the other side of her, and Debbie on the other side of James with Suzy on the other side of her.

Nancy lowered the blanket, revealing James’s engorged penis. The three women gasped, causing James’s erection to twitch. Nancy’s hand wrapped around his cock, and James let out a sigh of relief. It felt good to have her touching him again. He closed his eyes and let himself relax, enjoying the feeling of his mother’s gentle touch.

The other women continued to chat and visit, their voices a soothing background noise as James focused on the feeling of his mother’s hand on his cock. She stroked him gently, her fingers tracing patterns over his shaft, and James couldn’t help but moan softly.

“That’s it, James,” Nancy said, her voice soft and soothing. “Just relax and let yourself enjoy it.”

James did as he was told, letting himself relax and enjoy the feeling of his mother’s hand on his cock. He could feel himself getting closer and closer to cumming, the pleasure building up inside him like a dam about to burst.

“Oh, Nancy, your hand must be getting tired,” Debbie said, breaking the trance. “Do you think it would be okay if I take over for a bit.”

Nancy hesitated and then nodded, and Nancy removed her hand, Debbie’s hand taking over where Nancy’s had left off. James couldn’t help but feel a little disappointed that his mother had stopped touching him, but the feeling quickly passed as Debbie’s hand took over. She stroked him firmly, her grip tight and confident, and James couldn’t help but moan louder.

8:00pm The other women continued to chat and visit, their voices a soothing background noise as James focused on the feeling of Debbie’s hand on his cock. She stroked him firmly, her grip tight and confident, and James couldn’t help but moan louder.

“That’s it, James,” Debbie said, her voice soft and soothing. “Just relax and let Mrs. Debbie take care of you.”

James did as he was told, letting himself relax and enjoy the feeling of Debbie’s hand on his cock. He could feel himself getting closer and closer to cumming, the pleasure building up inside him like a dam about to burst.

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