Earlier Parts: [Part 1](https://www.reddit.com/r/eroticliterature/comments/ushpqm/what_a_son_wants_part_01_mf_dubcon_incest/) – [Part 2](https://www.reddit.com/r/eroticliterature/comments/uttara/what_a_son_wants_part_02_mf_incest_oral_piv/) – [Part 3](https://www.reddit.com/r/eroticliterature/comments/uxmdua/what_a_son_wants_part_03_mf_incest_dubcon/)
—–
The drive home from the clothing store was quiet, but not strained.
Brandi was embarrassed, but Jake just seemed amused by the whole thing. His mom had come away with some sexy new clothes, including a few different sets of lingerie, and he’d had his first-ever tit-fuck. It hadn’t been bad, but it hadn’t been as nice as fucking her pussy, of course. If anything, his favorite part of the whole afternoon had been walking by everyone afterward, his mom covered in his cum, the employees eyeing them. He’d been rock-hard again, and he still was.
A shop sign caught his eye and, without thinking, he turned in. Brandi looked up, puzzled by the nondescript building with a sign that just read “CECILIA’S.”
“Come on, we’ll be quick,” he said, not giving her a chance to argue. He’d seen the sign only briefly, but as he walked up to the store, he knew he’d made the right decision. His mom followed a moment later, looking uncomfortable as she finally realized what it was.
The butt plugs in the window were a giveaway.
“A sex shop? Really, Jake? After all that you’re still not satisfied?” Jake ignored the nagging as he pulled the door open, pushing her inside.
The interior was brightly lit, the walls lined with all kinds of lingerie and toys. He was almost regretful that they’d already picked out her lingerie in the last shop—he made a mental note to come here next time, instead.
The woman sitting at the desk waved them over, saying, “Hey there, first time in?”
Jake looked at his mom, chuckling a bit as he said, “Yeah, she’s a bit embarrassed about having sex with a younger guy, still, but she wants to experiment a bit. I think it’s awesome.” He heard his mom gasp in outrage, but the woman at the cash register was nodding enthusiastically.
“Oh, I understand completely, honey! Did you know what you were looking for?”
He pointed out the plugs, noting that there were several in the pack. “Are there more than one in that?”
“Yes, they come in four sizes, from small to extra-large,” the clerk said, pulling it down and showing the plugs off.
Jake looked at his mom, amused to see she looked mortified. “We’ll take it,” he said, finally, handing over his mom’s debit card.
***
It was dark by the time they made it home—the shopping trip had extended almost all day, and his dad had made it back before them. Brandi and Jake entered together, but Jake wasn’t about to let his mom off just yet. His new purchase was burning a hole in his pocket, and he wanted to insert one before she went to bed tonight. It was making his cock hard even just thinking about her lying next to his dad all night long with a toy shoved up her ass.
“Hold on, guys.”
Jake was surprised as his dad called out, summoning them to the living room, where a movie was sitting on pause at the start screen. His dad was sitting in his recliner, a bowl of popcorn in his lap. He hadn’t even turned to look when they’d come in, so he didn’t see that Brandi was dressed in a new sheer, slutty dress.
Todd continued, “I got us a scary movie to watch together, why don’t we all sit down and watch?”
Jake glanced towards his mom, who looked very much like she wanted to be anywhere but the living room, and he chuckled. “Actually, Dad, that sounds like a fantastic idea,” Jake said, plopping down onto the sofa. He patted the spot next to him, saying, “Why don’t you sit with us, Mom? It’ll be like old days, when we all used to watch movies together.” He grabbed a blanket from the back of the sofa and, after a moment, his mom sat down beside him. His dad turned on the TV, the living room darkening with a flip of a remote switch, casting the family in dark, eerie shadows as a horror theme began to play.
When his dad’s attention was turned, Jake grabbed his mom’s shoulder, gently pulling her down so that her head was laying in his lap. He laid the blanket across her, covering her. It was an affectionate, almost romantic gesture, and he could feel how tense his mom was as she lay. His hands were gentle, though, as they roamed over her, obscured beneath the blankets. His fingers slipped underneath the sheer dress, gripping her ass cheek briefly before slipping between the valley of her thighs. As expected, her panties were soaked, and he chuckled. “I knew you liked that today,” he murmured, the rumbling of the movie covering the sound of his words as his hand slid underneath the damp material.
His mother relaxed as the movie played, minutes passing without him trying anything untoward other than his now-expected fondling. Before, his mother would’ve slapped him for daring to touch her like he was now—now, she practically spread her legs, begging for his touch.
Jake’s hand slipped into his pocket, pulling out the “M” sized plug he’d pulled out of the box. The “S” had been tiny, and he’d ignored it altogether, opting for the second smallest of the sizes instead. It was about the size of his palm, maybe a bit smaller, and made of some sort of black rubber material. He hadn’t brought any lube, so instead, he rubbed it between his mom’s thighs, slickening it with the arousal his teasing touches were stirring in her.
Her eyes widened in surprise as the toy slipped between her lips, but she didn’t seem to realize that it wasn’t his fingers probing her pussy. He could feel her heart racing, and he almost laughed, the knowledge that she was entirely unaware of what was coming too much for him to resist. A part of him wanted to slip his cock between those dripping wet thighs instead, but his dad’s close proximity kept him from acting, if only because he didn’t want the old man to hear his wife’s cunt being fucked by his son.
The plug was slick enough now, and Jake slid his index finger between his mom’s asscheeks, feeling her tense at his touch. “Jake,” she warned. He shushed her, pressing the plug against her anus. He didn’t give her a chance to get up or push away, shoving the toy inside her quickly and with one, swift push. She let out a sharp, surprised cry, jolting away from him.
“What the hell, Brandi? What’s wrong?” His Dad had paused the movie and was looking at them. Jake was glad for the blanket he’d pulled down over them, hiding his mom’s state of half-dressed disarray and his own rock-hard desire.
“Sorry,” she said, her voice a slight whimper, “the, uh, movie surprised me.”
Todd was looking at her like she was insane, but he started the movie again, grumbling under his breath. Jake smiled at his mom, patting his lap. “Come on, mom, the best part hasn’t even happened yet,” he teased.
Brandi hesitated a moment, but as with all things, nothing her son ever asked for anymore was truly a request. She heard the warning in his tone, the promise that more was yet to come with his newfound fascination with her ass. She lowered her head onto his lap, feeling his cock, stiff and hard underneath his clothes.
***
The next few days went quickly, the week rushing past as the end of Break loomed. Jake moved his mom up from the “M” size to the “L” size on Friday, and by the time Sunday rolled around he was sure she was next for the next and final plug, the “XL.”
Brandi argued with him a lot on the plugs, a fact that he still found hilarious. Everything about his experiences with her said that she enjoyed the feeling of having her ass played with, but she outright refused to admit it. On Sunday, the day before he would have to return to school, he decided to move on with his plan, though it would have to wait until after church before he could implement it.
The sermon was quiet, nearly half of the seats empty. A snowstorm the night before had left the roads covered in thick, dangerous slush, and many of the older members of the church had elected to stay home, instead. The darkened amphitheater was spotted here and there with members, with Jake, his mom, and his father all sitting to the far-right corner of the room. It was where they sat every Sunday, familiar faces at the large congregation.
The pastor spoke passionately, his voice ringing from the speakers, denouncing the evils of adultery and sin. Brandi seemed bothered, and it wasn’t hard to understand why. Jake was hardly listening to the sermon, but whenever he decided to focus for a few minutes on the droning of the pastor, it was all about the sins and evils of being a traitorous spouse. Hilarious, considering the circumstances.
The pastor’s voice rang, resounding around them, “Paul preaches the importance of purity in the New Testament—”
Poor Brandi.
Todd was focused on his Bible, eyes occasionally flicking up to the dais, then back to his book, his mouth silently following along the words as the pastor spoke. His dad was a bigwig at the church and had more than once been asked to step in for an emergency sermon when a pastor had been sick. Jake sat between his father and his mom, a move that had surprised his mom—normally she sat between them, but he had a plan for this morning. He’d put her towards the wall, shielding her from the view of most gossipy church wives.
His hand rested on Brandi’s thigh, the short dress he’d chosen for her to wear barely enough to cover her panties and ass. She’d been mortified when he’d picked it out, but he’d been insistent, and somehow, she’d managed to convince Todd that it wasn’t as bad as it seemed. Still, the way the women in the lounge had glared at Brandi as they passed, and the men had stared, it had been clear to the entire family that his mom’s choice in clothing would be discussed heavily before the next Bible study.
Brandi’s face was staring straight ahead, but he could feel from the tenseness of her thigh that she was focused entirely on him, not hearing a word of what the pastor droned on about. Smirking, his hand slid higher up her thigh, and heard her inhale sharply. His cock stirred, and he had to resist the urge to sit upright, realizing he had stumbled across a new way to pass the time during the sermon.
“—our society is increasingly lustful. Television, music, the media, movies, *everything* teaches us that sex is just a pleasurable activity that can be separated from marriage—”
His mom’s eyes were on the pastor, but occasionally he saw them flick to the left, towards him. His pinky teased between her thighs, sliding upwards, glancing against the silky material of his mom’s lingerie, the same ones he’d had her buy while they’d been shopping for, feeling for the clit that he was starting to know so well. He found it after only a slight delay, the bud nestled between her lips. He teased at it, listening to his mom’s breath hitch, feeling her legs shift as she did her best to ignore the blasphemous fire he was deliberately stoking to life within her.
“—Sex is like a river that is rich and deep and good when it stays within its banks. But the minute the river pushes beyond its boundaries, it becomes damaging—”
Brandi’s head turned slightly, and he realized that she was checking to see if anyone was watching. He pushed his fingers higher, pulling aside her panties, feeling for the warm, wetness of his mom’s cunt.
Unsurprisingly, she was soaking, and he thrust three fingers inside her without warning, spreading her lips and delving in. Her eyes widened in shock, mouth gaping slightly, and he murmured a soft, “Shh.” Her mouth snapped shut, but her face was contorted as she tried to hold back the whimper as he slowly pushed his fingers in and out of her, not daring to move too quickly, even though he wanted to ravage her right there in the middle of the sermon. He could feel her walls tightening around his fingers, convulsing in response to his touch, and he gently began to rub at her clit with his thumb.
“—God demands exclusivity in marriage because He demands exclusivity in our relationship with Him—”
A whimper slipped from Brandi, thankfully as the pastor’s sermon received a scattering of cheers, mostly from the older men in the crowd. Jake was smirking, if his dad wasn’t sitting next to him, he would’ve been jerking it, but as it was, he was just savoring the memory. His dad’s obliviousness as his mom began to rock her hips, grinding herself against his thrusting fingers, was almost too much.
His finger brushed against something hard, slightly beneath the dripping entrance to her sex, and he paused, realizing with a subdued grin what it was. The XL butt plug he’d told her to wear. What a good, obedient slut she was for him.
Jake pulled on the plug in Brandi’s ass, and she gasped, slapping a hand over her mouth to pretend as if she were yawning, feeling her anus stretch and pucker as he pulled the toy out a bit, then pushed it back in. Her eyes were wide as she saw Jake watching her, gently fucking her ass with the plug as he continued to tease her clit. The effect was polarizing—she wanted to hate the plug, but each time he pulled on it, stretching her ass while his fingers continued to tease her clit, she only recognized the pleasure, the feeling of fullness that was beginning to feel more and more right.
Brandi’s heart raced as she felt her son’s fingers return to pushing into her, his thumb rubbing soft circles around her clit, stirring her in all of the ways he had learned throughout the last week to bring her to climax. It was something Todd had never bothered to learn with her, and one thing that Jake had insisted on learning almost right away. Having his mother’s orgasm under his control had given him power over her that she hadn’t understood until he’d used it against her, as he did now. He could breathe desire into her body that she didn’t understand, couldn’t fight. It took all her strength not to pant as she felt the edge hurtling quickly, hungrily towards her.
“—Adultery is not just an instance of one partner sinning against the other. It is an instance of also sinning against Almighty God who is your Creator and will some day be your *Judge*!—”
Her hips bucked, and she gripped the legs of the chair to prevent herself from squirming off the seat and onto the ground as her orgasm suddenly exploded within her. The pleasure erupted from her core and raced through every last nerve, until her entire body seemed to throb with electric pleasure, stemming from his fingers within her.
Her muscles locked as she fought the urge to let go of her control, to let herself ride the pleasure, knowing that if she did so she would lose absolutely everything. Euphoria washed over her, though, tinged tightly with anxiety, which stole her breath away and left her heart hammering wildly out of control in her chest. And still, Jake didn’t stop. As the climax hit its peak, she tried to push him away, the stimulation almost too much, but he insistently held still, his fingers stroking and thrusting, extending her climax until it was painful.
Finally, he allowed her to pull his hand away, though he tucked her dress back down and gave her thigh a reassuring, mocking squeeze as he did so. She was quivering and shaking on the chair, her eyes clenched shut in humiliation and simmering, subdued pleasure.
“—Please rise and shake your neighbors hands, and thank them for joining us on this nasty morning. You may now approach for communion—”
Brandi watched as Jake, smiling, shook the hand of every man he passed on the way up to the pastor.
Source: reddit.com/r/eroticliterature/comments/v1uk39/what_a_son_wants_part_04_incest_dubcon_blackmail