Corrupting Sweetie Belle

Twilight made her way towards the Canterlot Boutique slowly, not because she had any great reason to, but because she wanted to make sure every pony along the way got the chance to see the new body of the depraved Princess. Twilight was sure that her new body would draw the eye of every tit-loving pony and the jealousy of those that did not. And she could hear their whispering.

“Is that Princess Twilight?”

“She’s- she’s a bit fuller up top.”

“That’s an understatement.”

“Dear Celestia, she realizes there are children here right?"

"Wow, she's...she's. I gotta take a photo for later."

“Celestia she’s a real whore. The rumours are true, she’s like the slut Princess Cadence.”

Twilight soaked in all the rumours, pretending not to hear them but secretly being unable to keep the grin off her face, as she inspired all sorts of new wet dreams in the ponies she passes. Soon, too soon, though she came to the Boutique, and entering the room she found Rarity’s beautiful younger sister struggling over a series of notes. Attempting to cast some kind of spell.

“Having trouble?” Twilight asked, entering the room. Her eyes roamed the body and beauty of the beautiful younger woman. Her form was not as busty as Twilight's or her sister's was still sizable and fit well on her hourglass figure.

"Twilight thank you for coming you're-you're." She said before her cheeriness gave way to shock and confusion, as her eyes shifted down Twilight's new much more voluptuous body. "Wo-wow what's with the um well everything Twilight?”

“You mean the new tits? Or this new ass?” Twilight asked, her hands wrapping around the respective body parts. Causing Sweetie Belle’s face to flush deep pink as her eyes couldn’t help but be drawn to Twilight’s new body.

“Err I really like your mane.” Sweetie Belle said, there was no arousal in her voice. Seems Rarity’s darling sister was just simply straight. That would be unacceptable.

“Thank you, Sweetie Belle. Now apparently you wanted some help with a spell." Twilight said, making her way behind her seat, and leaning over the poor girl. Giving the illusion that she was peering into her notes but not so subtly giving her an unmissable display of her bountiful cleavage.

“Oh um right. The spell… yeah right that.” She stammered eyes darting to the table and becoming unnaturally fixed on her notes. "We’re having a pet show at school tomorrow. Applebloom and Winona have always won every time since their such good friends. But me and Opal…well…”

“Where is Opal?”

Rather than say anything Sweetie just pointed in the corner where a very scared and angry Opalescence hissed at the young girl from behind the corner table. A sharp claw waved away any would-be tamers.

“Ah… isn’t this more a Fluttershy thing?”

“I asked her but she said to bond with Opal and I did. I got her food, I set the temperatures just the way she likes them, I washed all her sheets but she still won’t do a trick.” She moaned, before slamming her head into the desk.

“So why do you want a spell?”

Sweetie Belle turned her face up, only a tad. Her pink hair still sprawled over her face even as her eyes narrowed dangerously at the disobedient cat.

“If she won’t do a trick willingly then I’ll just have to make her.” She growled. “I’ve been trying to put her under a trance and install some triggers so she’ll perform some tricks.”

Ordinarily Twilight would shoot this idea down immediately as immoral and manipulative, but right now she was much more immoral and manipulative than Sweetie Belle had any intention of being. So instead she decided to use this to her advantage.

“And are you having trouble with the spell Sweetie Belle?” Twilight asked leaning over her collapsed form. Her large breasts hanging from her chest are sandwiched into Sweetie Belle’s exposed back.

“Uh-huh.” She groaned, muffled however by the fact that she was speaking into the table.

Twilight grinned, as she thought of the many ways in which she could use and manipulate this. Truthfully Sweetie Belle's plan was doomed to fail, trance and trigger spells needed constant management and reapplication. That is unless they were willing.

“Of course Sweetie Belle I’ll help teach you the spell.”

Sweetie Belle lifted her face from the table, a faint glimmer of hope in her eyes. “Really?”

“Of course. We can’t let Applebloom win again.” Twilight said, taking her spot opposite her at the table.

“Right.” Sweetie Belle beamed, sitting upright with an eager smile. “So what do I do?”

“Well…” Twilight said, tapping her fingers on the table as she pondered her next move. “The first thing to know about this spell is that you need to be in the correct frame of mind, you actually need to channel the spell through yourself.”

“So you’re saying I need to hypnotize myself?” Sweetie Belle asked, her voice betraying the scepticism she held.

“In a sense, it’s exactly like that. But at the last moment you channel the magic outwards towards your target.” Twilight lied, in truth, this would only make Sweetie herself ****.

“Okay so how do I cast it?” Sweetie Belle asked.

"First close your eyes," Twilight ordered, the blissfully ignorant girl complying. Squeezing them tightly shut.

"Now cast yourself in your own magic as if you were about to levitate yourself," Twilight said, and Sweetie Belle did exactly that, encasing her in a green glow of light. "Now imagine a green swirling image. Project it on yourself, into your mind. Tell me when you see it.”

“I-I see it.” Sweetie Belle said, her voice becoming a soft murmur.

"Lose yourself to it, focus on it until you lose yourself," Twilight told her, getting up from her seat and strolling closer to the **** girl.

"Won't I get hypnotized?" Sweetie Belle asked, her voice becoming slightly firmer.

"Of course not Sweetie Belle. As long as you trust me I'll pull you out but we have to go deep to reach the core of your mind for your spell to work." Twilight assured her, approaching Sweetie Belle from behind. Massaging her shoulders to relax her further into a hypnotic resurrection. “So focus on the swirling magic. Stop thinking of the spell, let it run on its own as you would of your breathing or your heart beating. Let go."

Sweetie Belle's head rolled to the side, and her horn started to hum at a slightly different tone, indicating it was successful. "Fall deeper and deeper."

"Deeper and deeper."

"Surrender..."

"No..."

"Remember this is important Sweetie. You know you can trust me."

"Trust you."

"Trust me."

"Trust you."

"Surrender."

"Surrender."

Twilight grinned, delighted at her surrender. "Now Sweetie Belle we are entering the core of your mind, the very soul. The root of your every thought, and ability. Here we can rewrite the very nature of your mind, let me have control. Let me plant a few seeds."

"No-" She groaned. "Don't, can't."

"You're resisting Sweetie. Don't resist. You trust me, Sweetie Belle, don't you? I'm your friend." Twilight insisted, her voice becoming firmer.

"Yes."

"Use your magic, and find your resistance. Hold it within your magic." Twilight instructed, her voice now approaching glee as Sweetie Belle fell further into her grasp.

"I got it." She whimpered, sweat falling down her fur as her mind subconsciously resisted.

When Twilight spoke again it was with an aroused maniac glee that would not be out of place in Chrysalis' mouth. "Crush it, destroy that resistance. Leave your mind completely open to ME."

Sweetie Belle gasped as if crying out in pain, but Twilight could sense it. Her resistance was crushed. "Now listen to me, Sweetie Belle. Repeat after me. You will listen."

"I will listen."

"You will obey."

"I will obey."

"You will be programmed."

"I will be programmed."

"You will obey your programming."

"I will obey my programming."

"Excellent Sweetie Belle." Twilight purred, licking her lips as she leered at the now helpless open minded girl. Her pussy gushed as evil, sinful thoughts warped through the once noble and kind mare. "Sweetie Belle we are going to plant a series of triggers in your mind. These will alter your behaviour according to their programming if either, I, Cadence, Rarity, or Spike use them. Do you understand?"

"Yes..." She murmured, drool spilling down her chest.

"Good the first trigger will be 'Sleepy Sweetie' when said you fall back into this state. Your mind is open for further, altercations to your triggers and programming." Twilight explained, grinning like a mad woman. "Nod if you understand."

Sweetie Belle nodded, flushing Twilight's own body with arousal as her new intelligent, amoral mind considered whatever new tantalizing erotic triggers to implant on the young girl's mind.

A/N: Suggestions for Sweetie Belle's triggers are welcome as always.