It, it tastes so good…

It’s filling my mouth, my throat... and it fits so well.

But... this is wrong!

This… this isn’t right—I’m not this kind of mare!

Cadence pulled back her lips from Twilight’s penis, the twitching, throbbing appendage departing her mouth with a resounding wet pop. Her eyes remained transfixed upon the tip as she noted the merest leakage of a milky white coloured substance form into a tiny pearl that trickled down her cock.

Cadence immediately wanted to taste it.

But… but I want more… I want so much more.

For reasons that both horrified and greatly thrilled Cadence, she could not help but slither her tongue out to lap up the pre-cum like a mewling cat.

It tastes so good…

She savoured the musky, salty taste, swirling her tongue around the inside of her mouth; she battled with her magically forced state of sexual bliss, but could not prevent her body from moving of its own accord as it reacted to the flare of sexual energy she longed to release.

Cadence felt dirty and it felt good.

No! This shouldn’t feel good!

I should be fighting this!

Drawing back, Cadence trembled in uncontrollable anticipation as she looked up at Twilight with a mixture of betrayal and unbridled appetite, tears forming in her eyes.

But I… want it...

Twilight took a step back, her head shaking side to side. “Cadence this is… I’m so sorry!” Guilt ridden, the mare opened her wings and quickly curled them down around her body to hide the still erect appendage that Cadence now wanted, needed. “Give me a moment… I-I’ll change this! I’ll…”

I want her inside of me.

“T-Twilight… h-how could you?” Cadence inclined her head away as she gnawed at her lower lip, struggling to keep herself from staring at Twilight’s undercarriage.

I want to feel good.

“I… I don’t expect you to forgive me, but I… I’m sorry! I was just so desperate that I… that I didn’t think and I was just thinking about… what have I done? I’ve ruined everything.” Twilight clenched her eyes shut as her horn ignited with its lavender hue. “I think I remember the counter-spell. I can fix this, Cadence. We can just pretend none of this happened and Shining won’t know that I… that I tried to…” The mare clenched her eyes shut. “I’m a terrible pony. Just give me a moment to—”

I must… I must have her!

Suddenly knocked from her hooves, Twilight yelped in surprise as she felt Cadence smash into her, wincing as she was knocked onto her back.

Cadence quickly straddled Twilight, her face contorted into a grinning mess of blushing bliss, panting heavily as sweat dribbled down her brow. Savagely she ripped Twilight’s wings from around her under carriage and pinned them to the ground, allowing Cadence to stare manically wide eyed at Twilight’s still erect penis.

“C-Cadence! Wait a minute!”

“W-why? Y-you said you wanted me, r-right? You did this to me, so...” Cadence whispered as she slithered her lips close to wash her hot breath over the end of Twilight’s penis, “then… l-let me take you… like you wanted me to...”

“I… I…” Twilight shook her head, swallowing hard as her body froze, watching as Cadence’s lips descended upon the tip of her penis once again. “C-Cadence, what about Shining? I… this isn’t you… I didn’t mean for this to happen like this, I just reacted and—”

Shining…

Cadence’s mouth wrapped around the cock and began to suckle upon the tip, her eyes rolling back into her head as she heard Twilight’s satisfied groan.

I don’t care.

Maneuvering her head, Cadence flattened her tongue to allow Twilight better access and drove her mouth down around the thick shaft. She forcibly parted her throat and held her breath so she make it all the way to the base of her sister-in-law’s penis, with her nose buried in the large bulbous ball sack for several seconds to allow Twilight to feel the full extent of her throat.

I can feel it…

It’s filling up every inch of my throat.

I can feel her twitching.

She clenched her eyes shut so she could focus on ignoring her gag reflex, spluttering as her body salivated to aid in her throat’s lubrication, while her throat pulsed as it sought to swallow the obstruction .

Holding it for as long as she could, she suddenly tore her mouth away from Twilight’s cock, coughing and heaving as she gasped for air.

“S-stop… I-I’m sorry… I… AHN!” Twilight’s words were cut short as Cadence took a second plunge, though this time she did not pause in her plunge, thrusting back and forth with wild abandon. “I-I can’t let you… Mnnn~”

Every single stroke of Twilight’s penis as it penetrated her throat caused Cadence to hasten her attempts, the alluring and near grotesque sounds of Cadence’s efforts culminated in a series of wet coughs and loud spits as she drooled out the excess lubrication down onto Twilight's testicles.

Opening her eyes so she could look at Twilight, Cadence drew her lust crazed stare upon the mare’s blissfully contorted face.

Whether it was right or not, Cadence could not help but feel that there was more at work than the spell that Twilight had cast upon her.

Her overwhelming desire to have Twilight’s penis inside of her was one thing, but was she truly enjoying the fact that Twilight’s face was twisted into a euphoric state of bliss all because of what she had done?

It felt intoxicating.

No, it felt empowering to know that she could force Twilight to make the same face Shining Armor made when he enjoyed her ministrations.

Maybe that was why she felt strangely attracted to the mare?

This… this isn’t me…

And with Twilight, no less...

But I… I can’t deny I… I did find watching Twilight masturbate a turn on… I… I’d never act on it though.

I never thought I would do something like this and yet, why does it feel so… right?

And yet, isn’t this incest?

It’s just so, so wrong and yet…

It just feels so right!

Cadence’s eyes fell half lidded and content as she lifted a hoof under Twilight’s tail, finding the tight pucker of Twilight’s anus, massaging it in a slow clockwise-like motion that immediately caused Twilight’s body to tense up.

Cum… Twilight.

“W-wait… n-not there! I—”

Cum!

Cadence pushed the tip of her hoof into the tight hole and obtained an immediate reaction that caused her to grin. She felt Twilight suddenly tense up and spasm.

I want your cum, Twilight!

I want to taste it!

I want it!

I need it!

Twilight’s wings sprang open as she ejaculated, whining and writhing as she she pressed her hooves firmly against her lips to muffle the scream. Cadence positioned herself to accept the spurts of hot semen to coat the inside of her mouth and for a single string of white to cling to her muzzle and lips.

It almost tastes the same as Shiny’s... but, sweeter? There’s something different about it I can’t quite put my hoof on.

Collecting what she could in her mouth, Cadence tilted back her head and parted her lips, writhing her semen covered tongue about the inside of her mouth, coating her teeth and lips before allowing some to dribble onto her cheek.

This… this is amazing…

Out of the corner of her eye, she observed Twilight’s exhausted form sprawled before her, near motionless as her cock twitched and continued to pulsate mere trickles of her seed down the shaft.

Why did I resist?

How could I resist?

You’ve made me dirty and I… I like it...

Cadence slowly leant over Twilight, bringing her lips to hover above Twilight’s panting face and drooled the mare’s own cum down into her mouth.

I want to be dirtier. I’ve always wanted to do things like these with Shining. I’ve always wanted… to do more.

Explore every part of him.

Twilight received and savoured the taste of her secretion mixed with Cadence’s saliva, swallowing noisily with each mouthful.

I want more.

The momentary calmness passed however, when Cadence plunged her glistening lips against Twilight’s own. Both lost themselves in the sheer ferocity and passion of the kiss.

Their hooves intertwined and their bodies crushed against each other as they rolled about on the floor, each fighting the other for dominance. The sheer savagery displayed resembled two dogs locked in combat, each nipping at the others’ flesh between kisses, only to illicit yelps that spurred the other on.

It wasn’t until Twilight sat atop Cadence, pinning her forelegs to the ground with magic, that the dance finally came to an end. .

Cadence gazed up at Twilight with a silly smile, panting heavily as she awaited the victor to take the spoils, but it was then that Twilight suddenly became the voice of reason.

“C-Cadence, w-we…” Twilight swallowed hard, the taste of her own seed lingering upon her breath, “we have to stop… this has gone too far…”

No, Twilight, this has not gone far enough.

I want more.

I want to go further!

“Fuck, me…” Cadence whispered haughtily.

Twilight’s sprung back at the request. “Cadence… I-I can’t. Not like this… this is wrong… I… I forced this on you.”

You opened my eyes to the truth.

I was turned on while watching your masturbate.

I’m a deviant just as much as you are.

These are the kind of things I only ever dreamed of… things that I only ever fantasized about in my deepest and darkest desires.

Things I never thought I’d explore.

“It doesn’t matter, Twilight… I want it…” Cadence leaned her head up off of the ground, her words sultry and sickly sweet. “I want you, Twilight… I want you to… fuck me… to force yourself on me. Take me, Twilight…” Cadence whispered seductively. “Take what is yours.”

“What about big brother?” Twilight whispered as she looked down along Cadence’s body, her eyes locked upon a particular area that her cock ached to enter. “If… if he finds out that I—”

I don’t care anymore… I don’t care if he finds out.

“Twilight.... do it,” Cadence moaned her words as anticipation spurred her body to thrust upwards towards the cock, “do it like you wanted in your diary… steal me from him… make me yours.”

Cadence clenched her eyes shut, listening to Twilight’s breathing as she felt the tip of Twilight’s penis gently stroke her moist entrance, groaning as it brushed against the red hot nub of her clitoris.

“Stop teasing me…” Cadence moaned, cracking open an eye to observe Twilight’s apprehensive expression, “stick it in already.”

It felt like an eternity as she felt the bulge of Twilight’s cock fill her up. As Cadence looked down, she could just about make out the impression of something long and phallic under the flesh of her belly slowly traveling upwards like an invasive snake, until eventually Cadence felt a sudden pang of pain as Twilight’s cock hit the very end of her womb.

And what was most fascinating? Twilight possessed a couple of inches to spare.

“You’re b-bigger than Shining... much bigger.” Cadence commented with a bubbly giggle.

“C-Cadence… you’re so warm… it’s… I’ve never felt anything like this before…” Twilight began to thrust, gently at first, just to feel Cadence encompassing her aching cock.

Cadence drew Twilight’s eyes with her own and the two mares quickly became entranced by the other. As Twilight picked up the pace on her thrusts, their pants and moans unified into a blissful cacophony that spurred Twilight into wilder, more desperate thrusts.

With Cadence’s vagina perfectly drenched for the occasion combined with Twilight’s cum and saliva lubricated penis, it was a smooth glide with little to no difficult in and out of the mare.

There was no longer any restraint from Twilight Sparkle. Each thrust reverberated throughout Cadence’s body, spreading goosebumps across the flesh in sharp jolts of bliss.

And Cadence liked it.

Each sickening slap against her found Cadence’s mind awhirl in a constant haze of joy, satisfied beyond comprehension and aroused beyond belief that she was being violated with the full knowledge that, eventually, Shining Armor would find out.

D-Do I want to be found out?

The concept drew a shiver along her spine the more she thought about it. Her tongue lolled out of the side of her gaping mouth as she weakly laid back and surrendered to her fate, her rear legs spread wide to fully allow Twilight access to her deepest depths.

It was at this point Cadence felt her orgasm and her moans rising to a crescendo. Just as she was about to hit the breaking point, Twilight pulled out, garnering a groan of disappointment as she dazedly leaned her head up to frown at Twilight.

“W-why did you stop?”

“I… I’m close,” Twilight whispered as she stroked her penis, drawing back from a disappointed Cadence, “l-let me cum on you, please? On your belly… I’ve been wanting to do that for so long now.”

Shaking her head, Cadence quickly manouvered herself so that she was upon all fours with her flank pushed right up into the air. Her tail drooping to one side away from the swollen folds of her ravaged vagina, she used a hoof to pull at her flank to purposefully part the folds of her glistening labia for Twilight to see in all of its glory.

“N-no… do it inside me…”

“E-excuse me?” Twilight couldn’t avert her eyes, not for a second, from the swaying flank presented before her.

“Cum,” Cadence reaffirmed with more certainty, her tail swishing impatiently, “inside of me.”

Twilight shook her head weakly, still trying to make herself cum. “B-but if I do that—”

“Twilight Sparkle!” Cadence raised her voice, glaring back at Twilight for a moment before smiling sweetly to her. “Do it, or you’re going to bed early with no happy ending.”

“But!” Twilight blinked, the strokes on her cock halting altogether. “Y-y-you wouldn’t!”

Cadence grinned, arching a brow. “Wouldn’t I?”

“I… I’m not so sure about this… what if you… you know? What if you become—”

Cadence drew her sultry eyes down her own body, pausing a moment to think about it. “If it happens, then we’ll just pretend it’s Shining’s. I mean… after all, who is to tell it isn’t his? I’m sure it’ll look the same.”

Carrying Twilight’s child… while pretending it’s his?

Why do I find such a concept so exhilarating?

Am I that sick?

“In fact,” Cadence winked, “I think it’ll be kind of exciting, don’t you?”

Twilight swallowed hard. “I’m not so sure… I’m not ready to become a parent… I’m still too young.”

“You cast that spell on me to make me this way; you, wanted this from the very beginning. So, whether you like it or not, you started this mess and brought out a side of me I would willingly allow myself to reveal to anypony. You better hope you finish it or so help me, I am going to tell Shining Armor exactly what his little sister has been thinking about his newly wedded wife.”

Twilight lifted her brows, stunned that Cadence would go so far as to blackmail her into the act. Momentarily conflicted, Twilight eventually felt her lips curl into sultry and somewhat sadistic smile.

“Fine.” Twilight relented in a huff as she placed her hooves either side of Cadence’s flank, bringing the tip of her cock to the folds of her vagina. “I’ll finish it. But I am going to make you regret it.”

“Oooo, how frightening… Remember who was the pony who used to change your diapers? That was me, Twily. You can't make yourself sound threatening towards me even if you were Nightmare Moon herself with that kind of image in my mind.”

Twilight frowned as she narrowed her eyes upon Cadence’s flank. “Oh yeah?”

“Yeah.” Cadence replied indignantly, smug that she had won the argument.

Until she felt something forcibly penetrate and spread her anus painfully apart.

Author's Note

I felt the need to reveal I listened to this when me and my editor spent a long time editing this goddamn chapter.

We had a good laugh doing it, I feel. So the song is appropriate for our mindsets.

Love, hate, like, despise, comment or don't, whatever your choice it is all good.