Breaking the Belle

VI: Going In Hard

Two Weeks Later

Rarity sat in the lounge, reclined across one of the couches. A pretty little notebook floated above her head, Rarity’s neat handwriting scrawled across the gold-leafed pages. As she added to the latest empty page, she thought to herself about her little project. Sweetie had been making progress, though it had at times felt painfully slow. On the one hand, she had started to engage more with Rarity during their training sessions, but on the other, she still harbored that frustrating defiance a confident foal had. Of course, said defiance was always met with punishment, but Rarity was starting to wonder if harsh words weren’t quite having enough of a lasting impact.

Mulling over her last note, she snapped the book shut, before sliding off the couch and onto her hooves. Sauntering through to the main room of the boutique, she picked up her latest creation - a frilly garter belt, made to measure for the little one. Perhaps a little modelling would be fun!

Trotting up the stairs, she arrived at Sweetie’s door, pushing it open. Then her magic dissipated, the garter belt dropping unceremoniously to the floor.

Sweetie Belle was sat on her bed, straddling one of her pillows. With her legs spread, each jerking movement dragged her exposed pussy back and forth, leaving a slick mess of fluids soaking into the pillow and the bed itself. Her face was an exhausted mess, a deep red, an expression of need, confusion and desperation plastered across her face.

“Oh Sweet Celestia Rarity why can’t I cum I need to cum please please please it’s been so long and it felt so good I-”

Blocking out the filly’s ramblings, Rarity lunged forwards, grabbing her by the now ever-present collar, jerking her off the pillow and down onto the floor.

“HOW DARE YOU! I told you that only your Sister can make you cum! Little fillies like you aren’t supposed to be doing things like this on your own!”

Sweetie’s voice was a stuttering mess, a mix of shame and tears as her emotions swamped her.

“I-I-I’m so sorry Rarity it’s just been two weeks since the last one and you made me feel so good and I really needed it again why couldn’t I make it happen…?”

Rarity hauled Sweetie up onto her hooves, forcefully guiding her through the house by her collar again.

“Because, Sweetie Belle, I had a suspicion that a defiant little mare like you couldn’t be trusted, that you would flagrantly defy your Sister’s sagely instructions and try to masturbate on your own. So that big collar of yours? Infused with a little of Rarity’s magic. You see, not only is it locked in place, it also stops you being a slut. The only way you can orgasm is if I personally, verbally allow it.”

Descending the staircase, the two entered the main tailoring room - coming to a stop in front of an additional set of stairs.

“Down you go. First door.”

The basement? But there was nothing down there - just an old storage room and a walk-in wardrobe. Thoroughly put in her place, however, Sweetie could do nothing but bow her head and descend, slowly pushing open the first of the two doors.

The store room wasn’t a store room.

Well, it may have stored something, but it certainly wasn’t just fabric anymore.

The small, organised storeroom was now a hectic, cramped mess. Two of the walls featured huge shelving units, as they had before, but now the shelves were stocked with all sorts of perverse toys and materials. The exposed wall at the back - once a space for notes and lists to be pinned - was now lined with a terrifying array of tools, many of which Sweetie couldn’t even start to understand. She recognized one, though, the hefty paddle that Rarity had used on her that first night. The filly stopped stock still in the middle of the room, her ears pricking as Rarity sauntered in behind her, pulling the heavy door closed - locking it shut.

“I didn’t want it to have to come to this, Sweetie. I really didn’t. I wanted us to reach an agreement like civilized ponies. But you leave me no choice. It’s time for your Mistress to fully take charge.”

“...M-Mistress?”

Sweetie sounded so small, so lost, like a filly that had woken up alone in the middle of the Everfree.

“That’s right. Big Sisters always know best, but a rebellious little filly like you clearly needs to be reminded of the hierarchy - that way you might actually come to accept the way things are meant to be between siblings now. You know, that orgasm denial spell was only going to be temporary. Three weeks at maximum, and once I knew you had self control I’d have cancelled it, given you the choice of when to orgasm. But you’ve proved to me that’s not an option now, that you’re not to be trusted. So I guess my only choice is to leave that spell active. Forever.”

She strode past the filly, rummaging through one of the shelves for a moment.

“Now, you’ve worn latex before. It’s a wonderful material, and it makes you look very, very pretty. You’ll be wearing it a lot from now on. Every day, in fact. But I don’t think you quite acclimatized yourself with it. Smell this.”

Held aloft in her warm magic glow, the piece of latex flew through the air, plastering itself over Sweetie’s muzzle, cutting off her air. Instinctively she tried to back away, only to hear a tut from her Sister - the filly couldn’t back away for long though, and very soon she found herself pinned against the near wall. Nowhere to go.

“How does it smell?”

Five seconds passed. The smell of rubber filled her nose.

“Take it all in.”

Another ten seconds.

“Learn to love it.”

Twenty seconds. The filly gagged.

“How does it feel against your skin? You’d best get used to it now.”

Another eight seconds. Finally, the chilling unicorn pulled it away, watching Sweetie drop down onto all fours, choking for air.

As she laid still, gasping, Rarity quickly floated more gear her way, this time adeptly forcing a latex knee-high sock over each of her hooves, each with a strange metal ring on the sides. The latex was stiffer than normal, leaving her knees difficult to bend. With her mouth open, a ring gag easily floated its way into place, the strap tightening behind her head - and finally, perhaps most humiliating of all, a saddle. Saddles weren’t a common sight in Equestria - she’d only ever really seen Big Macintosh wearing one whilst giving little fillies ‘Pony Rides’ at those Sweet Apple Acres Fun days.

“Look up.”

Begrudgingly, Sweetie lifted her head - her eyes settling on a small piece of apparatus in the middle of the room. The base of a rocking chair - more specifically just the runners that rested against the floor, with four hoof sized spaces in them. At one end rested an imposing dildo on the end of a pole, and at the other, a chair.

“Get in, Pet.”

Pet?

Slowly lifting herself to her hooves, Sweetie moved forwards, keeping her eyes towards the ground. She positioned herself over the piece of equipment, placing each of her hooves into the gaps. As she did, Rarity slipped a padlock through each of the rings on her socks, attaching them to identical rings on the framework itself. Running her hoof along Sweetie’s back, she felt the filly shiver as the tip of the dildo was pressed against her asshole. It was much larger than the previous one - and where the previous one had been a simple tapered cylinder, this one was frighteningly realistic - the flared head grinding against her hole, teasing, slowly stretching it further and further.

“Do you like it, Pet? It’s actually modeled on a real stallion. Big Macintosh. He and Applejack were more than willing to let me take measurements and make a replica, especially when they heard what use it would be put towards. I think Twilight’s ideas might be starting to really catch on in ponies’ heads. But you needn’t be concerned with things like that. You’ve got more important things in your life to concentrate on. Things like…”

Rarity trailed off as she pushed the dildo further, the flared tip finally overpowering Sweetie’s defenses, the head vanishing into Sweetie’s rear. Sweetie gasped in shock, but that was her problem. She would have to get used to this.

Finished round the back, Rarity took her place in the seat in front of Sweetie’s face. Slowly spreading her legs, her crotch was directly in front of Sweetie’s eye-line, leaving her staring at her exposed pussy.

“You love this view, don’t you Pet? Well, don’t worry. It won’t be changed forever.”

...wait…

What?

That familiar warm blue glow again, this time descending on Rarity’s crotch. It was a little difficult to make out through the bright blue light, but it looked like… something was coming out of her pussy?

With dawning horror, Sweetie watched as slowly, inch by inch, a penis began to develop from within her. As it elongated, it also expanded, widening and widening until it was easily the thickness of a well-hung stallion. More and more flesh added to the powerful tool, pushing the expanding tip forwards, until eventually it pressed against Sweetie’s muzzle.

Rarity, her teeth gritted, lightly poked her still-forming cock with her hoof, jabbing the flared head downwards. The rod flicked off of Sweetie’s muzzle, now coming to rest perfectly against the ring gag.

“aaaaAAAaah, get ready Pet, your Mistress is still growing, and there’s only one place for it to go…”

As the flared tip pushed against the ring, Rarity quickly found herself growing impatient, the hunk of flesh unable to naturally push itself through the small ring. So she wrapped her hooves around the back of Sweetie’s head, pushing her forwards, until eventually Rarity’s own tip jolted forwards into Sweetie’s mouth. A few more seconds passed by, and finally the blue glow dissipated. Rarity’s vagina had now been replaced by an impressive cock and a pair of hefty testicles, resting atop the seat. With her hooves still gripped around the back of Sweetie’s head, she started to slowly pull the filly forwards, tilting her whole body on the two rockers. As she tilted forwards, more and more of Rarity’s cock slid down into her, bulging out her throat like a snake that had swallowed a sheep. With each inch towards Rarity, a little more of the fixed dildo in her asshole slid free, exposed again to the cool air of the basement. Rarity slowed the push, watching her little sister’s eyes beginning to water profusely. She’d only taken about half her cock down her throat, but she’d learn to do better.

After an uncomfortable length of time, Rarity let go of Sweetie’s head, allowing natural momentum to rock Sweetie backwards to a neutral position - of course allowing the dildo in her asshole to slide deep inside again. Forwards Rarity’s hoof went again, this time pressing against Sweetie’s shoulder, pushing her backwards, further and further onto the dildo. Her asshole had had its fair share of training in the last fortnight, with daily evening sessions and the introduction of a butt-plug to be worn to school in the last few days. As a result, the dildo managed to slide in with ease, only slowing as the medial ring met Sweetie’s hole, though it too was quickly pushed inside.

Again, Rarity pulled her hoof back, allowing Sweetie to return to her resting position. This time she rested her hoof on the filly’s head, brushing her mane again, in what Sweetie had come to realize was an almost sick display of power.

“Now, little Pet. You understand how to play Mistress’ game now, so now you try. And don’t think you can just take it easy. You know I’m watching.”

Unsure which of her holes to punish first, Sweetie sat still for a second. Instinctively she settled on leaning backwards, testing her asshole - it was the hole more acclimated to cock, after all, so it just felt easier.

“Thaaat’s it… you’re getting the hang of this,” Rarity purred as her Sister slowly rocked back and forth. “There is no point trying to be defiant, little one. You know who is in charge, deep down. The sooner and more willingly you embrace it, the easier I can be on you. Difficulty is only going to be met with discomfort, so don’t make it difficult. It’s as simple as that.”

Back and forth the filly rocked, the respite of one of her holes loosening being combated by the other uncomfortably stretching out. The two sat, almost in silence as Sweetie forced herself back and forth, the occasional grunt and moan the only vocal sound to escape either of them.

Suddenly, Sweetie could sense her Sister tensing up. Her whole body had gone stiff, her hooves slamming down on her thighs. As she tensed, she suddenly stood, kicking the chair backwards, sending it clattering to the floor. On her hind legs, she reared backwards, trying to dislodge her cock from Sweetie’s mouth. Out slid her cock from Sweetie’s throat, stopping abruptly in the mouth. The flared head had caught on the ring gag. Unable to free herself without a slow and careful effort, Rarity hastily fumbled with the locking strap behind Sweetie’s head. Freeing the lock, the ring gag came away, firmly stuck over Rarity’s shaft, squeezing against her, crushing her urethra.

“Oh, Sweet Celestia…” Rarity muttered to herself, a slight panic in her voice, despite her attempts to hush her tones.

From the alarming pulsating of her cock and balls, it was clear to Sweetie that Rarity was ready to cum - or trying to - but that ring gag was squeezing her urethra, stopping the flow of spunk. With a frustrated roar of effort, Rarity’s magic consumed the ring, before suddenly snapping it in half.

In that split second, Sweetie realized just how scary that was. In times of heated emotions, Rarity’s magic had the strength to break metal. What would it be able to do to her if Rarity got angry?

She didn’t have time to think about that.

With the ring gone, Rarity let out a primal scream, both her hooves frantically jerking back and forth along her shaft. As they did an explosion of semen surged forwards, the first spray so powerful it physically stung Sweetie’s cheek. The thick white liquid coated her muzzle, causing Sweetie to have to clamp her eyes shut. The second load followed almost immediately after, soaking into her mane and eyelashes. Then came the third, straight across her muzzle again, several droplets firing up her nostrils. The forth crashed into her chin, sending great wads of the spray in all directions, splattering the floor. And finally, the fifth, smaller load drained itself onto the floor, cascading down from Rarity’s tip. Her legs shook violently as her knees bowed inwards, the power of the orgasm taking its toll. Clearly the first orgasm of a magically developed cock had a far greater impact than one would expect.

Rarity stood, bent over, trying to catch her breath again as the intense feeling subsided in her loins. Wobbling backwards, she righted her chair, flopping down onto it. Once her composure had returned, she stopped to look at the mess she’d made.

“My word, Sweetie Belle,” she exclaimed between breaths, “I don’t think I’ve ever seen you looking so gorgeous, your face painted with the seed of your Sister. It just looks so right - that pretty cum-stained body of yours is beautiful. I-”

A sound emanated from upstairs.

From the reception, the ring of the phone. Immediately her business professional self, Rarity was on her hooves, climbing the stairs. Sweetie could only listen, her head hanging down as the seed slowly congealed over her face, a painfully small amount dripping away onto the floor.

“Hello? Oh, hello!”

Pause.

“Yes, I’m very well, thank you!”

Pause.

“Haha, don’t you worry, she is absolutely splendid too! We’ve just been playing together before dinner!”

Pause. A longer one this time.

“Oh? You wish to speak to her? Very well. One moment.”

The clattering of hooves on floorboards. The echo of a pony descending stairs. The door opened again. There was Rarity, the wireless receiver held in her magic.

“Sweetie darling? It’s Mother!”

Rarity floated the receiver towards Sweetie, hovering it beside her cum-stained ear, an especially large bead dripping from it.

“...H-Hi Mom…”

“Hello Darling! How wonderful to hear you again! It’s been a little while! I hear you and Rarity have been playing games together!”

“....”

“...yes, we have Mom. It’s been fun.”

“Excellent! You two are such wonderful mares. I’m so proud of both of you! Oh, I’m sorry sweetheart, your father is calling, I think he needs my help with something! I’ll talk to you soon. Bye Darling!”

And with that, the receiver clicked. Sweetie looked up at her Sister, who had been stood over her the entire time. Her hooves had been crossed, and her eyes were filled with fire - a fire that had thankfully now started to fade.

“Good Pet. I’m glad you know the appropriate way to talk to your Mother - there would have been some really big problems for you if you’d said something you shouldn’t have. Now, let’s get you out of that rocker. It’s time for dinner. I think we’ll just have fish tonight. Tell you what, cook it well, and I’ll let you shower all that cum off this evening, before you go to bed. How does that sound?”

Ruffling Sweetie’s hair, she released the four locks and pulled off all the gear the filly was wearing, before dislodging the dildo from her asshole and patting her on the flank, sending her up to the kitchen. The unicorn smiled to herself as the little filly climbed the stairs. Training was starting to ramp up now, but surely her labors would bear fruit soon. It was in that moment her mind slipped back to a conversation she’d had a week or two before. A conversation with Rainbow Dash: a conversation about how excited Scootaloo had been to find out about Sweetie Belle’s ‘games’. Perhaps a playdate was in order.