A/N: Everyone is entitled to doing "one of those" fics, right? This is mine. If you don't like how I'm portraying the characters in this fic, don't read it. No hate, no flames. Just don't read it.

Disclaimer: I own none of the Vocaloids.

Jessie's Girl

Chapter 1

"Do it again."

"Again? That's the sixth time today."

"You're recital is in two weeks and you can't even get past the third measure without skipping notes or completely ignoring the allegro. You're supposed to play quickly, lively. Have you been practicing at all?"

"Honestly…?"

He waited for her answer.

"I've been busy… with work and school. I have a paper due soon and-"

"And I am a busy man with a family and a life outside of this job yet I still manage to put up with disappointments like you. Now do it again."

Gumi tucked a stray piece of chartreuse hair behind her ear as she turned her sheet music back to the previous page, adjusting her bow between the bridge of her cello and the finger board before starting Beethoven's Fur Elise from the beginning… for the sixth time that evening, fiftieth time that week. She just about had the entire piece memorized, no thanks to her instructor.

Kamui Gakupo was the best strings instructor in Tokyo, and Gumi should've been more than thankful that he accepted her as a pupil. The lavender haired man was extremely picky when he chose his students, taking things like grade point average and personality into consideration before thoughts of acceptance came to mind. The handsome man taught out of a professional studio in his home across town, meaning he had no problem kicking students he found not worth his time literally out onto the streets with the trash. He demanded a lot from his student simply because he knew they could produce the perfection he was seeking.

Gumi herself felt she was not far from such a fate. She managed to get through the trial period, played her first piece beautifully for him with little to no complications at all. But now, months later before her first real debut, the teen had a reason for shaky hands and nerves that were constantly on end when the man was around. She lifted her eyes from her music stand briefly to find that her instructor was no longer standing across the room, scowling at the horrible music she was undoubtedly producing with his arms folded tightly. But instead…

"I think you need a break from all this." His deep voice rasped beside her ear, causing her to jump.

The music skidded to an abrupt halt as her bow bounced off the rosin covered strings and clattered to the hard wood floor. Gakupo chuckled at the reaction, his great body settling neatly behind her straight back. Long arms maneuvered around her to lay her cello neatly on its side on the floor, as his warm lips caress the side of her neck. A soft gasp slipped past her lips as large, calloused hands went to work on unbuttoning the girl's blouse.

Gakupo loved the feeling of warmth that radiated off of Gumi's skin as he touched her, the way he made her heart race as he dragged the tips of his fingers down the valley between her breasts. "You wore the black lace." He whispered before licking the small, pierced shell of her ear. The dark color complimented her pale skin beautifully.

"You told me to." Came the girl's reply.

Gumi felt the man smirk into her skin as he unhooked the fine material, sliding the straps off the hollows of her shoulders and down her lithe arms. He was quick to grope her breasts yet he was gentle in doing so. Gakupo loved her breasts, he told her so personally the first time he touched her. The pale shade of her nipples, how they tasted, and the reaction he got from her when he fondled them. He said they were even nicer than his wife's.

Gumi was, needless to say, very indifferent to the man's words.

She tensed as his fingers took a hold of one of her sensitive buds, pinching it lightly, while his other hand slid down the plain of her stomach. Aside from the nice undergarments, Gakupo required that Gumi wore either skirts or dressers to practice- easy access. Gumi never knew what kind of mood the man was going to be in when she arrived, if they would actually get through practice before he fucked her senseless or they'd start screwing as soon as she stepped inside. The one thing she knew for sure was that Gakupo hated having to remove troublesome clothing… if it wasn't his own.

Gakupo pried her legs apart, pleased when he found not the fabric of panties but just the soft skin of her lips. "So obedient," He purred as he stroked her softly.

Gumi gave a soft whimper as he slipped a finger into her core, urging her to relax against him while he fingered her core and played with her clit. She could feel his cock pressing angrily into the small of her back, and knew it wouldn't be long before he stripped of the rest of her clothes and bent her over the nearest surface. But instead Gakupo undid his pants and pulled himself out, lifting the small body in his lap.

"Ride me," He demanded huskily.

Gakupo gave an annoyed roll of his eyes at the skeptical yet bashful blush Gumi gave him. Her eyes drifted to the thick muscle standing at attention from his groin, the pre cum that slicked its sides pooling slightly in the violet hairs at its base.

"Luka gets home early tonight, if I get us completely undressed we won't have time to redress if she returns and we're still in here. Now ride my dick."

Gakupo slammed Gumi down onto his hard cock, relishing in the pained cry that tore from the young teen's throat as her body was forcibly settled on his broad hips. He got a kick out of many things during sex, but it made his dick twitch when Gumi got vocal. Her protests and cruses went out the window when he got his cock in her, and Gakupo loved it. Her hands fisted in his shirt, hearing the man groan loudly at the sensation of her tight warmth around his cock, as she began to bounce herself. Slowly at first, Gakupo's hips arching up to meet hers as he increased their pace. The man captured her lips in a sloppy kiss, his tongue slipping into her mouth and demanding dominance. He smirked hearing her moan quietly as he tightened his grip on her hips, pounding away into the smaller body. With every jerk of his hips, Gakupo sank deeper into Gumi, bouncing her body. He felt her walls begin to tighten around him, his facial features distorted as her insides sent him on a high. Gumi cried his name aloud as she came, her juices coating his cock just before he pulled out, releasing his own seed onto the flesh on Gumi's stomach.

Gumi fell off her instructor's lap, landing on her floor with a quiet thud as her knees buckled. She watched through half lidded eyes as the man wiped his dick clean of their cum before tucking it back into his pants.

"You might want to get up before I decide to fuck you again." Gakupo smirked as his beautifully ocean blue eyes glanced briefly at her still swollen clit, the pink bud caught some of the cum that fell from her navel. "Lessons are over for today."