You Are Mine

by TheNewYorkBrony

Rating: mature
Tags: Comedy, Random, Human, Alternate Universe
Length: 2410

A spell gone awry causes Twilight to become lustful and horny. And unfortunately for Spike, she's set her sights on him.

After a spell done by Twilight goes wrong, she begins to lust for sex. Unfortunately for her number one assistant, he's the one she wants it from.

Idea and pic from: http://smilingdogz.deviantart.com/art/You-are-Mine-427552184

Published 1970-01-01 00:00:00 UTC
Last updated 2014-02-16 07:30:07 UTC

Spellbound

All was quiet in the peaceful library that belonged to Twilight Sparkle and her assistant. The day had started off completely normal. The birds were chirping, and Twilight was up before Spike and making breakfast for them both. Yup, completely normal. Until, a package arrived for Twilight.

It was from her mentor, Princess Celestia, who had left a note on the parcel. Twilight signed for the package and thanked Derpy before setting it on the kitchen table and reading the memo.

Dear Twilight,

Inside this box is a spell that I had worked on in my teenage years. I was...a rather rebellious one. I had created it during a...deep frustration. This spell has been locked in my bedroom since then, and no one else has ever seen it, not even Luna. Since you are coming of age and are my faithful student, I would like for you to have it. Do with it as you wish, but I must warn you, it is very unstable. I’ve never dared to use it so the outcome of a backfire is severely unknown. Please be careful.

Your loving mentor, Princess Celestia

Twilight read the paper over before reaching into the box for the spell. It was written on what looked like notebook paper. Giggling at the simplicity, she scanned it over once before putting it back in the box. She’d start on it later.

Spike sat down at the table as Twilight set the box on it.  "What's that?" He asked. He had seen her get lots things sent to her from Princess Celestia. But nothing like this.

"Oh just a spell the Princess entrusted me with.  She says that it's something she came up with when she was my age." Twilight scanned the note again. “I think I’m gonna go into the study to perform this one. She said it was unstable and a bit dangerous. Who knows what could happen if you got into the crosshairs?”

Spike shrugged. It didn’t matter to him. As long as it didn’t involve him, he was fine. “Alright. Just let me know when you’re going to perform it.”

They ate their breakfast in silence before Twilight informed him about her performing the spell. She was going to wait until the late afternoon, but the excitement about a dangerous and new spell concocted by the princess herself made her giggle in anticipation. He nodded, stationing himself in the main part of the library, busying himself with cleaning up the book shelves and sweeping the floor.

Meanwhile, Twilight closed the door to the study and cleared off her desk. Placing the paper with the spell on it on the table, she rolled up her sleeves and cracked her knuckles.

Taking a deep breath, she exhaled and rolled her neck. Then, she read the spell out loud, just to practice it. It felt familiar on her tongue. It was a lot similar to the Want it, Need It spell she had learned when she was younger and had used that time she had freaked out about missing her friendship letter deadline. She figured it must have mostly the same properties since they sounded so much alike.

Extending her hand and feeling her magic aura flow through her, she smiled as she saw her purple mana slowly materialize on her hand. She took another deep breath and read the spell again.

Suddenly, her eyes flashed white, and a powerful force knocked her back so hard that she landed on her back with a thud. A thud so loud, that Spike came to investigate. By the time he had reached the study, she was already standing up again, slightly holding her head. “Twilight! A-Are you okay?! do you need me to call Nurse Redheart?!” He asked, running over to her.

She waved his concern away. “N-No. I-I’m fine. The spell just kind of backfired. Like the princess said it would.” She leaned against the desk and shut her eyes for a moment before opening them again. Spike noticed there was something different about her violet orbs but couldn’t quite place what it was.

“Are you sure you’re okay?” He asked, pressingly.

Twilight gave him a short nod. “Yeah. I’m fine. Trust me.” She smiled warmly at him, putting a hand on his cheek. She let her eyes trail over him. “Have you been working out?” Twilight asked seemingly out of the blue, feeling his chest.

Spike, confused and frankly a little creeped out, responded with, “Yeah, sometimes.” He watched as she bit her lip. The older girl’s eyes flashed pink, to which he immediately reacted to. “Um, Twilight?” He asked as she lifted up his shirt.

“Hmm?” She hummed, licking her lips.

“Did the princess ever tell you what the backfire on that spell was?” He could swear she was contemplating getting on her knees.

“Nope. Said that the backfire was unknown.” She wrapped her arms around him, pulling him closer to the desk. She hoisted herself up and gave him a sultry look.

“I-I Think I know what it is.” He croaked as he felt her unbuckle his belt. “I-I’m gonna go get Nurse RedHeart o-okay?” He stuttered, pushing her off of him and making a beeline for the door only to his dismay to hear it be locked by Twilight’s magic.

He stood there for a moment before speaking up, pointing to the door. “Ah, it’s locked.”

“I know.”

“You wanna unlock it?” He asked, looking at her. He wasn’t exactly sure what the spell was supposed to do, but he sure as hell knew it wasn’t supposed to be this. He saw the paper with the spell on it laying on the floor and picked it up. Reading it, he realized he saw something similar to it. Plucking one of the spell books off the shelf he realized the spell that Celestia had given her was supposed to be an affection spell. Something used amplifying affectionate feels.

But since this one was unstable and backfired so harshly...it turned into a lust spell. From what he knew about lust spells, once the person affected by it gets sights of someone else, there was no stopping them. The only way to reverse the spell was to give Twilight what she wanted.

And Spike wasn’t sure he could do that.

Twilight used her magic to bring him closer to her. He tried to dig his heels into the carpet but it was a lost cause. Twilight was a strong caster. And this spell was some how making her even more powerful. Spike was beginning to feel there was no hope for him.

She glared at him, hard. Hard enough that the tension caused by her gaze made the spiky haired assistant uncomfortable. He gulped, but her stare did not break. He glanced at the doorknob.

Still Locked.

Twilight’s eyes were still wide, and the pink in them shone brightly. Save for her heavy breathing, there was no movement in the room. She let him go so that they were at equal eye level. “Now, Spike…” Twilight lightly patted his hair. Her voice was sweet, nurturing and kind, completely contradicting her expression. This scared Spike even more.

“Suppose the spell did make me a bit…” She laughed, half-heartedly. “…excited…would you…?” Her voice trailed off. She couldn’t believe the words she intended to say! Spike, however, knew exactly what she was inquiring and a mixed expression crossed his features. He slowly nodded.

“GREAT!” She shouted and stood up, starting to shed off her clothes. She finished undressing and Spike looked her up and down in awe, distracted by her surprisingly curvy body enough to forget about the bizarre situation he was in.

“Wow, Twilight you look—”

“NEVERMIND!!” She pleaded, tugging at his purple shorts. He was a very lanky teen. He legs were nearly hairless as he was barely sixteen. Not quite ready for boxers yet, he donned white undies. They hugged at his member snugly. Twilight took notice of this and grew more impatient. She grabbed the edges of those as well and pulled downward. There before her was his boner. Not surprising in the slightest. In fact, she was sure Big Mac’s was bigger. But the spell continued to convince her otherwise. She stared at it, hungrily.

“So…you want me to…”

“Stick it in me.”

“Wh-what?”

“For Celestia’s sake, do I have to do everything?” She picked him up and plopped him down on the desk. He still had his shirt on and he attempted to wrestle it off but she didn’t allow him. She hovered over him.

“No need.” She demanded. “This won’t take that long.”

Spike winced as Twilight lowered her vagina onto his member, as if he was expecting pain. He was, after all, a virgin, and the six of his friends would always complain about how much it hurt the first time. Twilight took in a sharp breath and sighed. It was just large enough to graze her pleasure center, but she needed more. Turns out she did have to do everything.

Twilight started to grind into Spike’s dick furiously, trying her hardest to rub it on her clit. Spike sat lethargically, watching her ass bob up and down his lap. It was truly a sight to see. Much more than he ever imagined from someone so bookish and conservative.

Twilight seemed to discover a way to strike her bits just right minutes later, gasping when she found just the right spot. It was evident as she began to pick up speed and hump at his knob a little harder, moaning loudly. Spike was still lying idly and enjoying his view. He did regret her position, however, in that she wasn’t facing him. Not that he minded watching as beads of sweat decorated her bouncing bottom, but he just wished he could witness Twilight’s face as she climaxed. He had dreamt of it many times, perhaps even more than he did of Rarity’s.

Rarity was much more open about sensual matters, so he could easily assume her reactions, but Twilight was the well-kept librarian of Ponyville. Her face was unthinkable, unfathomable. How he yearned to watch as her magenta eyes squinted close to focus only on the friction of their loins. How he yearned to hear her sweet melodic shout as she finally reached her peak. He sighed, dreamily, still watching her bob.

Twilight’s heavy breathing transitioned to yelps and then to powerful bellows. She tried to stifle herself by biting her lip to no avail. Paranoia about being caught fucking her number one assistant now dissolved into pure and unadulterated passion, driving her to grind on with no limits.

Spike was now alert and not daydreaming. It just occurred to him that he was literally being plowed into the table. By someone who he considered a sister. The gigantic ass before him was slamming down onto him belonged to someone he never thought would even want sex as much as she did now. He gasped loudly when the bouncing prevented his normal breathing patterns, but Twilight didn’t care.

Her apathy combined with her arousal flooded her thoughts. She could feel the incoming orgasm swelling within her. Nothing else mattered to her in the world but that pathetic dick she was riding. Spike gripped the side of the desk, trying to delay his cumshot so he wouldn’t lose the erection.

One last thrust against it and she belted out a cry so deafening it concerned Spike. She held the note for a few seconds more, vaginal orgasm sputtering from her love like a faucet. Minutes passed by and Twilight still rested upon the teen’s prick. She panted and suddenly stopped. She was dead silent. Spike squeaked out weakly:

“Twilight…?”

Twilight turned to her lover. Her eager look was gone. Her pleasure, diminished. Not even the gleam in her eye remained. She looked down at the mess she made with a scowl. “This is…” She mumbled. She hopped off of spikes organ.

Almost immediately as she did, Spike grunted and shot his seed onto her butt. His willpower proved stronger than once predicted, but Twilight was still displeased.

“What’s wrong?” Spike asked sitting up.

“This is going to take me hours to clean up! Why did you let me do...” She didn’t finish her sentence when she saw that she was naked and so was Spike, save for his shirt. “What the hell happened?” She demanded.

“The spell the Princess gave you backfired and...it made you really...uh...” Spike tried to find the right words. “It made you extremely horny. And you kind of just saw me and literally jumped me. It was awesome.” He admitted with a content sigh and smile.

“I...we...me...and you...” She repeatedly pointed to herself and him in disbelief.  “We had sex? Why didn’t you stop me?!” She whined, running a hand through her messy purple locks.

“You had the force of a freight train. Plus the look in your eyes made me think if I didn’t give into your demands you were gonna snap my dick in half.” Spike told her defensively.

Twilight pinched the bridge of her nose and exhaled through her mouth. “Okay. You are going to clean this up, and we’re going to pretend like this never happened. Clear?” Spike nodded quickly. “Good. Now if you’ll excuse me, I’m going to take a nice hot shower.” And with that Twilight picked up her clothes, unlocked the door and walked upstairs. A few minutes later he heard the shower run in the bathroom.

Spike began to clean up the mess that him and, but mostly Twilight, had made when he came across the note paper with the spell on it. He put down the books he had collected off the floor on the desk and snatched it up.

After checking to see if Twilight was still in the bathroom, Spike plucked the note page off the floor and looked at it. “So this is the cause for all this.” He mused, reading the spell over in his mind. Just as he was about to put it down, he saw something written on it out of the corner of his eye.

Happy Valentine’s Day, Spike. ;) -Princess Celestia

“Well I’ll be damned." He chuckled to himself. "The old hag did this on purpose.” Spike snorted, shoving the letter in the trash by the door. But then, he went back to go get it, smoothing it out. “Hmm. Maybe I could use this again...”