Cumming To An Agreement

by MysteriousJerk

Rating: mature
Tags: Fetish, Comedy, Romance, Non-consensual, Equestria Girls, Sex, Sunset Shimmer, Twilight Sparkle (EqG), Human
Length: 4551

Sunset pays her ridiculously cute, nerdy friend a visit to settle some fan-fiction friction and fool around with fun fantasies.

Sunset wants her fan-fiction to be noticed a bit, but competing to be seen amongst all the porn is a losing battle. A mite envious of a certain pretty, purple, prolific, pornographic prose producer and her expansive fan-base, Sunset pays Twilight a visit of veritable vulgarity and very vigorous vengeance.

Kinks - If you're not into most of these, skip to the dialogue at the end of the story, then go back to the beginning: Non-con, rough sex, hate-fucking, domination, submission, masochism, verbal abuse, squirting, and cuddling.

Published 2020-02-06 16:30:01 UTC
Last updated 2020-02-06 16:30:01 UTC

It's Not What You Think

Twilight caught her reflection across the room and jerked to rigid attention in her seat, crimson tinting her lavender cheeks. Put off by the the unfocused, lecherous expression she had evidently worn for the last two hours as she worked the keyboard, she set about straightening herself up. She wiped the tiny gleam of drool from the corner of her mouth, brushed her long hair, straightened her glasses, and smoothed the vest she wore over her blouse. There, she thought, an innocent proper, school girl with no deviant sexual desires whatsoever. Her moist, sticky undergarments and faint, but distinct, scent of extreme feminine arousal belied this image.

No one could know this side of her. They’d judge her and find her repulsive, she just knew it. Such was her paranoia and fear of this outcome, that she insisted on writing her smutty fan-fiction only when her parents were gone for the weekend, and she made sure to maintain the expected physical appearance of someone of her intellect and social identity, even in private.

Just then, Twilight heard the distinct report of a door closing. It produced a baritone note only the heavy front door of the house could make. Panicked, she snapped her laptop shut and began gathering her notes to be stuffed into a lockbox. There was no real reason for this kind of hustle since privacy in the Sparkle household was sacred, but—

Rapid, heavy footsteps pounded up the stairs. Whomever was in the house was moving quickly and would reach the landing long before Twilight had enough time to hide the evidence of her secret perversions. Still, she scrambled, trying desperately, and failing, to move without sound. Who could that be? Her brother was on a date with Cadence and would be gone into the evening. Her parents would also have let her know if they were headed back early. Terror welled up in her for a moment before she remembered that she and the other Elements had entrusted each other with keys to their homes, in case of emergencies. When one regularly combats magical threats to society, the planet, or even the universe, it was a practical decision born of trust and a solid foundation of friendship. It was probably Pinkie Pie or Rainbow Dash; neither girl would have had the tact or foresight to warn her. Still, this meant there was an emergency. Momentarily forgetting the anxiety of being ousted as a sexual deviant, Twilight stood and hesitated, torn between prioritizing the covering of her literary shame or moving to intercept her visitor.

The decision was made for her when her door burst inward on its hinges, tiny fragments of wood splinters spraying from the frame as the bolt tore through wood. Without even looking to see who her likely assailant would be, Twilight yelped and dove behind her bed as the terror revisited her bloodstream in a flood of adrenaline.

“You!” Someone shouted.

“Me?” Twilight whimpered.

“Its you! You’re Ahn~other1!” Twilight’s heart skipped two beats. The first was from hearing the username she used to publish her smut and the second was when she recognized Sunset Shimmer’s voice. Her throat clenched shut and she found she couldn’t even begin to generate a response. “And you were doing it again, weren’t you? Smells like sweat and pheromones in here, Twilight!”

Twilight peeked over the top of her meticulously smoothed bed, letting out a nervous squeak at Sunset’s furious visage, framed in the open doorway. She was flushed, breathing hard, and held a small backpack at her side. Before she could stop herself, Twilight’s eyes slid sideways to the pile of half-gathered notes on her desk. Both girls dashed for the mess of papers, but Twilight tripped and sent several filled sheets fluttering into the air around them on her way to the floor. Sunset forgot the paper on the desk and caught one of the tumbling sheets as Twilight crumpled into a heap.

“‘Yes, she cried finally relenting to the grotesque pleasure of the situation, dump your gooey clutch in my womb. I want to feel it push through my cervix, you monster’,” Sunset read in a flat, contemptuous monotone. “Yep, that’s Ahn~other1’s style alright.” Twilight curled in on herself, mortified and stricken with paralyzing shock. In a moment, she was hauled to her feet as Sunset dropped the backpack with a heavy thud and lifted the poor girl. Twilight was set down on the foot of her bed, but she flopped over onto her side, legs dangling over the edge. Apparently unmoved, Sunset turned and stepped away, beginning to pace. “I can’t believe it’s been you all along. You’re the one making it so hard for me, pun definitely not intended. I just want people to see my work for once! I put everything into it when I find the time to write and no one can see it because of people like you!”

Finally, Twilight found her voice, “H-H-How did you find out?”

“What? Oh.” Sunset stopped pacing and shot her friend a glare, “Turns out Starlight is a computer whiz. She said it wasn’t easy, but she traced the IP from your account.”

Twilight shot up, “So...y-you’re not the only one who knows?”

“Well, no, I am the only one. I just noticed you use the same computer at the public library every time you visit. I checked the browser history and saw it visited Ahn~other1’s user page every Saturday, at around the same time you always have a private errand to run. Add in the missing visits from when we had a magical adventure and it was pretty obvious.” By the time Sunset finished her explanation, she was grinning maniacally. Twilight shrunk back, wishing she could sink into her sheets and vanish forever. Anyone else discovering this private activity would have been one thing, but with Sunset, it was so much more humiliating for one heart-wrenching reason. “It was mainly that and...that story you posted about the…” Sunset coughed idly and her smile vanished, “girl with the...red and yellow hair and the...pickle mishap. You’re the only one I told about that and the chances someone else would write a smutfic about it are astronomical!”

Twilight buried her face in her hands, “I’m sorry, it was funny! I just wanted to write something different!”

“It’s not funny!” Sunset growled. “My junk was sore and smelly for days!”

Twilight groaned and fell back against her bed. “What do you want me to do? I’m just having fun with a harmless, creative outlet.”

“I’m so glad you asked, Twilight.” Sunset stalked over to the backpack and kneeled to unzip the largest section. “You know, I was hoping I’d find some lonely, desperate, mouthbreather who obviously couldn’t get laid if their life depended on it, so I could feel better about losing out in popularity to them...but instead, I find you.” Sunset stood before Twilight, hands behind her back. “Even if you didn’t have a ton of academic accolades and future prospects, and sex was all you had to look forward to in your life, you could have anyone you want, you know that? Any boy, any girl, anytime. And yet,” Sunset gave a frustrated sigh, “And yet, you keep everything bottled up and you flood the front page with hastily-written porn about weird fetishes and boring, overdone pairings and...agh! It’s lazy and shallow and your hundreds of followers just lap it up and push it to the Featured box whether its any good or not!” Sunset’s face was even more flushed and her breathing had accelerated by the time she was done with her tirade. “So...I’m here to give you what you so obviously need.” She brought forth an object and Twilight’s eyes went wide in shock, her own face flushing even deeper than Sunset’s.

“W-W-W-W-What do I need with thatI?” Twilight wheezed from her constricted throat as she crab walked backward onto her bed.

“Obviously, you need relief and I want you to thoroughly and reluctantly enjoy yourself while I give it to you. Now lose the skirt.”

“But, Sunset, please I—”

“Take it off!” Sunset roared. “I already know you’re wet. In fact, I’m pretty sure you’re even more excited now. The only time your writing isn’t filled with bad grammar and lazy prose is when you write about rape fetishes, rough sex, butt stuff, and that one story about...me.”

Twilight’s vision swam as the blood in her body had no idea where to go, pulled between a fear response, abject abasement, and intense arousal. She felt punch-drunk and woozy and before she knew it, her trembling hands were hesitantly tugging at the waistband of her skirt.

“Hurry up!” Sunset barked, snapping Twilight back in a loose semblance of her senses.

“Will it hurt?” Twilight asked, her gaze sliding around Sunset’s face as if trying to touch two positively charged magnets.

“What do you think, ‘Ahn~other1’?” The breathy sigh that passed through Twilight’s lips was fueled by fearful anticipation and an eagerness she felt, but was unsure she wanted. The skirt slipped down her shins and caught on the buckles of her loafers. Sunset ripped it away, taking Twilight’s footwear with it when her feeble efforts to kick the skirt off made no progress. Twilight lay on her back, unsure of what to do next, already feeling more naked than she was. Sunset studied her for a moment, eyes raking the girl’s body from her midnight blue kneesocks, up her lavender thighs, halting on the slate grey panties and the dark stain of moisture Twilight was trying to hide. “Well? What are you waiting for? Spread ‘em.”

“Why are you doing this?” Twilight whispered as she haltingly brought her knees apart.

“Because I’m jealous and frustrated and there’s nothing else I can do without ruining something or hurting someone,” Sunset said with gritted teeth.

“But you might hurt me.”

“I’m not gonna hurt you in any way you don’t deserve. Or want,” Sunset said, mounting the bed with her knees and scooting between Twilight’s feet. “Now shed that vest.” Twilight did so, struggling with the buttons, but eventually the garment fell away from her chest. Sunset hummed in satisfaction as she gazed down at her bosom, where Twilight’s hardened nipples could be seen through the blouse. “No bra, huh? Do you always go without when you wear that vest?” Twilight squeezed her eyes shut, nodding in response. “Thought so. Open that blouse.” Twilight complied, but when she tried brushing it off her shoulders, Sunset swatted her hands away, causing her yelp. “I didn’t tell you to take it off. Now, unbutton my pants,” Sunset said, kicking her boots off and letting them tumble onto the floor. She bit her lip as Twilight’s hands groped blindly at her flat stomach for a few lingering seconds, then found the button of her jeans. She took this time to drop the object in her hand and toss her leather jacket away, then lifted the shirt from her torso and carelessly dropped it on the bed. The button of her jeans finally came undone and Twilight’s hands shot back to her chest, moving the folds of her blouse to more completely cover her modest breasts. Impatient, Sunset downed her own zipper and removed her pants, taking her magenta underwear with them, rather than commanding Twilight to do it for her.

“Can-can we just talk about this?” Twilight whined.

“Is that really what you’d rather do at this point?” Sunset deadpanned, knowing the answer would be a resounding ‘no’, judging from the wetness leaking so profusely from Twilight’s crotch that part of her ass and inner thighs glistened with arousal. Twilight’s only response was an almost imperceptible shake of her head.

Sunset reached behind her and released the clasp of her bra, letting her more substantial breasts bounce free of their designer holster. Now entirely nude, she retrieved the object with one hand and gently brushed her fingertips across one of Twilight’s knees. Eyes still closed, she gasped and flinched away from the contact. Sunset placed her hand on Twilight’s knee again and caressed her luxurious skin with her thumb before beginning to inch down along her supple thighs.

“Hurry…” Twilight sighed.

“Oh? Eager, now?”

“N-no that’s not what I meant! I—h-h-hoh my...” Twilight’s protest fell away as her eyes flew open and she took in the sight of Sunset’s unclothed body. She was just...so...umf. As practiced as she had become at describing all manner of succulent body types and sexual forms, nothing came to mind to describe the visual buffet of Sunset’s every carnally enticing line, dimple, and bulge. ‘Fit’ was accurate, ‘shapely’ was appropriate, ‘sybaritic’ was somewhere adjacent, ‘sensual’ was approaching adequacy, but none of these words alone summed up the sheer panty-slickening aesthetic masterpiece that knelt between her legs. Sunset’s looks were almost enough to entirely distract from the alarmingly familiar strap-on she was currently in the process of donning. The dual pleasure model came with vibrating components for the wearer, which Sunset slipped into herself with a soft grunt. They could stimulate her actively, in time with thrusts, or passively, with a constant vibration. Sunset opted for the passive mode. Twilight had lusted after the idea of being a victim to such a tool the first time she saw it in an internet advertisement she totally hadn’t meant to click. It had even featured prominently in a tale or two of her lewd literature. “I suppose y-you want me to take these off now…?” Twilight said, fiddling with the tops of her panties.

“No. I’ll do it,” Sunset replied, placing a hand on each of Twilight’s thighs and sliding them down to her middle. She let her fingertips momentarily wander over Twilight’s soft, slim abdomen before traveling down to her objective. She hooked her guitar-calloused digits through Twilight’s waistband and began dragging the underwear down, savoring the way the fabric clung to her friend’s maiden curves. Sunset felt her own internal gush of arousal as wet sounds emanated from the soaked cloth and flesh when they separated, revealing a neatly trimmed patch of navy blue pubic hair and Twilight’s bright pink, glistening flower. “Such a pretty little pervert…” Sunset crooned as she pushed only one of Twilight’s feet through the leg hole of her underwear, leaving them to hang off the other ankle. Twilight was again torn between shame and arousal at Sunset’s verbal abuse, bringing a hand to her lips to begin chewing a fingernail as she digested the inner turmoil. She flinched and squeaked when Sunset thumped her exposed mound with the phallic silicone. “I’ll go easy on you if you can at least promise to put a little more effort and time into that grimy smut of yours.”

“But it won’t be fun if I have to try so hard. Besides, there are so many smut writers, someone will just take my place if I slow down.”

“Hah! Unlikely. You have by far the most followers and probably the highest post frequency. If you slow down, it’ll just give the rest of us a fighting chance to have our work seen.”

“I’m sorry, Sunset. I...I can’t. I have fans. And I like what I do.”

“Yeah, well how much do you like it now?” Sunset demanded, lunging forward and grasping Twilight’s pert nipples through the fabric of her blouse. She tugged them upward and gave them a twist. The raggedness of Twilight’s scream tapered into a smoother, breathier vocalization as Sunset’s rough ministrations dragged on. “Answer me!”

“Ahn! I love it! I love it!”

“Ugh, you’re such a dirty attention whore.” Sunset spat, giving Twilight’s right breast a mean slap which garnered a not-displeased gasp. Still abusing a nipple, Sunset’s other hand trailed down Twilight’s naked body, spreading her fingers just before making contact with her nether lips. Sunset teased the flesh around her labia, never quite touching anything sensitive, and watched, enraptured by Twilight’s sensual squirming beneath her. Sunset shook her head to clear it of a hypnotic fog that formed as she watched Twilight’s movements and took a moment to plan her next move. She gathered a coating of juices on one thumb, placed it just on the edge of Twilight’s clenched pucker, and drew it upward across those pleading lips. At first, Twilight let out a restrained sigh, but the moment Sunset’s thumb crossed over her swollen, exposed clitoris, a burst of pleasure ignited in Twilight’s loins, flaring up and climbing her spine in a fraction of a second, exploding through her head like fireworks. Sunset watched the premature orgasm rip through Twilight as she silently threw her head back, arched her spine, and clawed at the sheets. Twilight choked out sharp, halting breaths and convulsed as the waves of orgasmic impulses faded from her system. Sunset watched, feeling amused, aroused, and flattered, all at once. “That’s quite a hair trigger, Twi. Don’t you ever do this kind of stuff to yourself?” After a moment, Twilight dreamily shook her head, eyes focused on something far beyond the room. “No wonder you’re constantly writing smut,” Sunset said. “This is going to be such a shock to your system, then.”

Twilight felt something press against her opening. Her animal instincts eagerly awaited the pleasure, but as she understood what was happening, the afterglow of the orgasm was dissipated by an acute, nervous clarity.

“No! Wait! I’m still really sensitive, it’s gonna—ooah-unngg...ghah!” Twilight cried out as Sunset hilted into her with the faux cock. Sunset hadn’t been overly cruel, but she could have gone slower—the rubber phallus wasn’t exactly a modest size. Twilight felt her walls beginning to stretch, though it was still uncomfortable. Besides her fingers on a couple rare occasions, she had only ever once inserted the hefty handle of a hair brush and that had been mostly out of curiosity, so that she felt she could accurately describe penetration. Sunset began to draw the thing out and Twilight groaned as the scraping sensation elicited an unexpected mixture of pain and pleasure.

Twilight felt helpless, pathetic, weak, and terrified. There was no fight in her, only a cowering insistence that this should be wrong, that it wasn’t like Sunset to treat her friends this way. Why, then, did this feel so good, so unequivocally right? Why was she having so much fun? But also...what was missing?

These thoughts were pushed from her mind by Sunset’s next thrust, a rougher, faster motion than the first and just as painful. Twilight’s walls opened a little more and the next withdrawal hurt a little less, but Sunset’s vigor only increased, keeping the pain of her thrusts constant. Soon, however, they didn’t hurt at all, and Twilight’s mouth hung open as she gasped and moaned with every crash of their hips.

“You’re—hng!—enjoying this—huh!—too much!” Sunset growled, drawing her hips as far back as possible to punctuate her words with deep thrusts.

“Sunset! Ohhh, stop! Ah! Please! I’m gonna…I’m about...to...”

“Cum, Twi. Do it, you precious little freak!”

Twilight convulsed again as another orgasm wracked her body, leaving her no spare neurons with which to cry out. Her eyes rolled back into her head and Sunset began to feel the stimulators inside herself edging her nearer to her own climax as she watched her beautiful friend experience a mind-numbing pleasure. Twilight regained control of her vocal chords and let out a ragged gasp, followed by more moans as Sunset continued to buck violently against her. A thin sheen of sweat was beginning to build on both girls.

“No more. I—hah—I can’t, Sunset. So...sensitive...”

“Shut up! I bet your self-inserts could—ung!—take it!”

Somewhere deep in the back of Twilight’s fuck-addled mind, a realization was beginning to form, pointing a wobbly, suspicious finger at the growing breadth of Sunset’s apparent knowledge of the pornographic fanfiction that began all this. She tried to grasp its significance, but the thoughts melted into the lascivious goop her brain was becoming. As she returned to the world, she found herself wresting the blanket with teeth and hands. It seemed Sunset had flipped her onto her chest, lifted her ass into the air, and was railing her from behind. More than she ever speculated—and she had done so a lot—the position felt unwholesome and animalistic, tinging the pleasure with a satisfying, primeval vulgarity. Twilight squeezed her eyes shut in a desperate bid to focus and maintain some small shred of lucidity.

“Ahhn! What if I—uh!—what if I promoted your work?” Twilight gasped. Sunset’s immediate response was to strike her victim’s ass hard enough to reverberate. Twilight couldn’t keep in the pleasurable vocalization that flew from her throat on reflex.

“Don’t try to bribe me!” Sunset slapped Twilight’s ass again, harder. “This isn’t just about me! It’s about everyone who writes M-rated fanfiction! No one can open their account to viewing it without being inundated with smut like yours!” She turned Twilight’s limp body onto her side, threw the nerdy author’s leg over her shoulder, and increased the rapidity of her thrusting, sweat breaking out in full force across her body. “Just give it a fucking rest once in a while!”

For several long minutes, Twilight made no reply, simply basking in the heat and passion of the moment, embarrassed and fascinated by how thoroughly she was enjoying the abuse, but not the least bit sorry. She felt another orgasm looming just on the other side of the sexual horizon, but something was different. She thought she had cum hard before, but this new climax was already promising to dwarf even those towering summits of carnal delight. Twilight opened her eyes and felt the orgasm leap closer. Sunset’s nude, sweat-slick, athletic body rippled and shone as she exerted herself with nearly inhuman stamina, like some ethereal ideal of a hedonistic goddess, too unreasonably beautiful to exist. And yet, here she was, slaking Twilight’s years of pent-up deviant lusts with a fury both terrifying and thrilling to behold.

The moon-sized orgasm eclipsed Twilight’s thoughts, and she perceived no more. She died and was reborn moment by moment in a blissful, white wash of ecstasy she had only ever tried and failed, failed, failed to confine and present in the small, bleakly limited medium of words.

From Sunset’s perspective, Twilight seemed to seize soon after opening her eyes and meeting her gaze. Sunset nearly stopped, concerned, when Twilight’s voice suddenly shredded the air and a hard spray of warm, clear liquid splashed and sprinkled her middle, jetting from Twilight’s savagely clenching slit. Sunset watched, her entire body growing hotter by the second, her own walls quivering with excitement around the vibrating toy inside her until, at last, she was pushed over the edge by the sight. Sunset came, long and hard, gritting her teeth to keep from giving in to those lingering Equestrian neuro-impulses that would have otherwise caused her to spout something akin to a whinny. She fell forward, back into a missionary position, supporting herself with her hands to either side of Twilight’s shoulders.

When the panting and shivering slowed to a steady rhythm, both girls opened their eyes and stared at the other for some time.

“K-Kiss me?” Twilight pleaded, weakly. Sunset said nothing for several seconds, and Twilight’s heart began to sink.

“On one condition.” Sunset breathed.

Twilight frowned. “Oh. Um, alright...”

“Kiss me back.” Sunset said with a smile and pressed her lips to Twilight’s. Both of the girls’ heads swam as they found their pace and kissed eagerly, collapsing together and rocking side to side as they rode the high of their unfettered affection.

This is what was missing, Twilight realized.

When the shaft of light leaking in through the curtained window had dimmed and reoriented, Sunset awoke from a shallow slumber with a start.

“Oh, hey, I’m sorry about the door, I’ll fix it. I just had to make it look good.”

“Make what look good?” Twilight mumbled into Sunset’s bare chest.

“Um, you know, the whole writer’s righteous fury thing, heh.”

Twilight unstuck her face from Sunset’s cleavage. “So you weren’t actually upset about being obscured by porn?”

“Well, I have written a couple short stories that were pushed out of view by stuff like that but, no, I wasn’t actually upset about it. I was mostly just excited to do this with you.”

“Wait, then, how did you know I’d enjoy this? Or that I’m Ahn~other1?”

“I mostly figured out that you visited the Ahn~other1 user page on accident. I was using your favorite computer at the library, looking through the history for a video I need for chemistry class and noticed the username. It's hard to miss. I was curious about who else read your stuff, but the URL suggested a successful login which coincided with the times you used the machine.”

“Oh. Impressive detective work. What about this?” Twilight asked, subtly pressing herself into Sunset.

“We-e-ell, remember last month when you brought me soup after I got sick? You totally fell asleep in the chair beside my bed. I just thought it was so cute and sweet of you that I...I think I started crushing on you...and…”

“Yes?” Twilight said, with a blush.

“You looked so happy snoozing in that chair that I kinda wanted to see what you were dreaming about. So...I used my element to see it. I-I know it was an invasion of privacy, but I didn’t think someone who seemed so...ah, pure and innocent could have such dirty dreams. Full disclosure, I probably watched for about an hour. I mean, it was a dream about us, how could I resist?” Sunset ended her explanation with a sheepish grin. Twilight’s face was so flushed Sunset wondered if the blood loss had made her dizzy. “Sorry?”

Twilight seemed to study her for a moment before planting her face back into Sunset’s bosom. “Apology accepted.”

“Whew.”

“So what else did you have in the bag?”

“Hmmm. Maybe you can find out some other time. I’m beat.”

“Promise?”

“Only if you promise not write about what we do. I don’t like sharing my sex life with strangers.”

“Agreed. I promise.”

Author's Note

While nothing in this story should be taken personally, I do feel kinda bad for the writers of quality M-rated fiction on this site since, because of the way it works here, smut and the easy followings it gathers makes it difficult to compete against to be seen for feedback and whatnot.

So here's five M-rated stories I think are under-appreciated and you should totally check out their stuff!
The Exiles - by Aremna (Dark Fantasy)
Answer Me - by Black Hailstorm (Surreal Mystery)
Legacy - by Quillian Inkheart (Gangster Noir)
The Doom That Comes To Canterlot - by MadMethod (Lovecraftian? Horror Thriller)
Lyra Grows Fingers - by Scramblers and Shadows (Short Body Horror)

These stories don't lean on pop-culture crossovers, graphic sex scenes, or variations on ideas like the hugely popular Anon-a-miss arc (Not that there's anything wrong with that). Just lots of love and thought put into every word and plot line of these tales.

No, I don't know any of these authors personally, no, I don't get anything for this, and no, none of them asked me to do this. But I did get permission to promote them here.