Written as a birthday gift for YlisseanKitty (or YlisseanLynxy, as they are calling themselves lately). Has some light BDSM, so keep that in mind.

She was trying hard, really hard to concentrate on her teaching of the class, but she couldn't. She just wasn't listening to her lecture. Frustrated, Glynda bit down on her lip. The nerve of these freshmen…

She then decided that she'd try to get the girl's attention in another way. She raised her voice.

"Okay, for the next sparring match, we'll have Pyrrha Nikos square off against Ruby Rose."

She then watched intently as Pyrrha descended the steps down to the arena, but Ruby was still pressing her face in the desk, not even registering the order.

"Ruby Rose, please get down here for your spar."

She heard a light snore. That was when she snapped.

"Ruby Rose!", she yelled at the top of her lungs. "Come down here this instant or I'm failing you!"

That seemed to work as the cloaked brunette jumped in her seat, wondering about her whereabouts for a moment before starting to clumsily make her way down to the performance area. Glynda was watching her with her lips forming an almost invisible line. When the sleepy girl was finally in her position, Glynda spoke again.

"Ruby Rose, you're staying here after the class."

"W-What do you mean, professor?" Her eyes were filled with innocence and obliviousness.

"What I mean is you're getting detained."

Ruby's eyes widened. "B-But why?"

Pyrrha thought that Glynda couldn't get angrier. She was wrong as she saw the lips thin ever so slightly more, to the point where you'd be hard pressed to see them with a naked eye. Speaking of which, her eyes were emanating pure wrath at the insolent bubbly girl.

"Because," she said in a venomous voice, "you were sleeping in class. That kind of behaviour is unacceptable!"

Ruby looked at the floor, slightly ashamed of herself. "I'm sorry, it won't happen again."

"Anyway," the teacher continued as if she didn't hear the apology, "now that's dealt with, the spar can begin. Get ready, go!"

The two huntresses-in-training commenced with their spar and Glynda watched their every move to determine if they have learned anything since they got to Beacon.

Somewhat surprisingly for her, Ruby was advancing way beyond what was expected of her, especially with her work ethic and discipline (or lack thereof). Of course, she had the predispositions, she was the prodigy after all. Still, Glynda was surprised at the rapid increase in the girl's abilities.

The spar ended inconclusively, which was another small surprise for Glynda. In her past spars, Pyrrha would always win, though not always by a huge margin. That time, though, it would be Ruby's victory if not for a very convenient shield position from the spartan.

Nevertheless, the class was over and Ruby remained in her seat, as she was instructed, and thus detention began. Glynda ascended to the seats above the arena and sat herself a few rows behind Ruby, who was in the first row.

"Miss Goodwitch," Ruby timidly asked, "what am I supposed to do now that I'm in detention? I was never detained before."

"Do your homework or whatever. There's nothing you have to do, you can just look at the ceiling for the whole thing, just know that you're going to be here for two hours before I let you go. The only thing," she then added as she saw Ruby getting ready to doze off again, "that you're not allowed to do is sleep. You have to be awake for the whole two hours or else your detention time is lengthened for as long as it takes for you to be awake for two hours."

"Aww, man," Ruby whined, but Glynda scoffed and looked away.

Ruby was between a rock and a hard place. How on Remnant will I spend two hours here? And I really have to… She had to ask the question, as stupid and childish it was. She turned around.

"Umm, Miss? C-Can I go to the bathroom if I have to?"

"Yes. But I'm going with you to it so you don't slip away."

Ruby blushed at the thought of being escorted to the bathroom like she was a small child. But there was nothing she could do about it. "Fine."

After finishing the thing, Ruby washed her hands and idly threw a few splashes of water towards her face. Then she looked at herself in the mirror. Then her mouth widened in a devilish smile.

It might be dangerous, but it will pass me time.

Upon returning to the classroom, Ruby sat down in her chair and was silent for a moment, Glynda thought nothing of it, as all she was worried about was whether or not Ruby was awake.

A few minutes after that, Glynda thought she heard something. Ruby looked as if she was reading something, not moving much other than the occasional page turning. Glynda looked away, telling herself she was just imagining things. Her gaze was fixed on the window, or that would be Glynda's idea, but her eyes wandered towards Ruby again.

I can't understand where that noise is coming from. It sounds as if it's from Ruby, but she isn't showing any signs of making sounds.

Couple minutes later she realized she was ogling Ruby. Ogling her student. She told herself that couldn't have been true, but the fact remained that her gaze was fixed on her dark hair with red highlights, imagining what they would look like dangling freely down as Ruby would be propped on Glynda's table, squirming under her touch – mind, stop that! She's my student!

And the noise she heard before just wouldn't stop repeating itself! If anything, it was becoming louder. Listening carefully, Glynda deduced that the noise was very similar to moaning. Cute, high-pitched, almost child-like moaning. And it was coming from in front of her. Could it be… No, that's impossible. She wouldn't have the guts…

Yet the noise was persistent and growing louder by the minute. All signs pointed to Ruby masturbating in front of her detention teacher.

Glynda hated to admit it, but the noise was turning her on. The two hours went by agonizingly slowly, but she decided not to say anything.

When the two hours went by, though, she was very quick to get Ruby out of the classroom.

"Well then, Miss Rose, our time is up. Make sure this won't happen again. If it happens, the next time might last longer."

Ruby nodded in silence and left. What Glynda didn't see was the victorious smirk she put on after turning away from her.

Glynda's hope of detention setting Ruby straight was ruined the very next lesson she had with her class. Instead of sleeping, though, the girl was making all sorts of noises. Glynda had no choice but to detain the troublemaker again.

One would think that after a few detentions, everyone would realize that they shouldn't be doing what they were doing to get detained in the first place. Glynda was proven otherwise as Ruby kept getting wilder and wilder, almost as if she wanted to be detained.

Ruby was fully aware that what she was doing was wrong, but she couldn't help it. She couldn't think of any other way of spending time with her favourite teacher that wouldn't be seen as weird.

She was getting braver in detention, though. At first, she would try to conceal what she was doing, but lately, she was getting more and more carefree and Glynda definitely noticed it. Ruby would swear she heard her moan at least once before.

Maybe she wants it too, Ruby thought. Then she decided.

She was in detention nine times. The tenth time would be special.

She started packing stuff that wasn't strictly school material into her bag for the next day.

Glynda released a long sigh before opening the door to her class, pupils already seated inside.

Ruby Rose, you better be on your best behaviour today. She was thinking of the previous nine detentions and how she caught the young girl masturbating every single time. It didn't escape her keen eye that the girl has gotten more and more brave about it too; at first, she would try to be as silent as possible, but lately she was all but moaning full force.

Ashamed as she was to say, Glynda caught herself masturbating the last few times as well. Did she want Ruby to stop being secretive about it and just come to her and tell her what she wanted? Was she looking too much into it and it was all her youthful hormones that needed release so badly? Glynda remembered how it was when she was Ruby's age. People would say she wasn't as much of a "good" witch as she was a "horny" witch. In a way, she felt compassionate, relieved, even. Knowing she wasn't the only one insatiable in that time of her life calmed her down.

She shook all thoughts away and tried to concentrate on what she was supposed to do, namely, teach those kids how to fight properly.

She let out another sigh before opening the door.

Nothing seemed out of place. She wanted to start the lecture, but was stopped at the moment she opened her mouth by quite loud banging of hands on one of the desks. She didn't even have to look up to know who it was. So you won't stop. Fine, then.

She started talking about how to reserve Aura for important parts of a fight, or at least, she would have if the banging would stop. To make matters worse, a singing voice started accompanying the drumming.

Her patience ran out. "Ruby Rose! Go to my office this instant and don't even think of leaving it before I get there or I will make sure you're expelled!"

The sudden yell made the whole class jump in their seats, but Ruby acted as if it was nothing, stood up and calmly left the classroom and (presumably) went straight to Goodwitch's office.

The lecture continued undisturbed after that and Glynda was so thankful for the peace and silence.

Although seemingly nonplussed, Ruby quickened the pace after she shut the door of the lecture hall behind her. Maybe I took it a bit too far. Still, I have to make this work.

She nearly ran to Glynda's office, which was, luckily, unlocked. The room by itself was nothing special, the desk in the middle was completely bare save for the computer on one corner of it. The room was not big either, if anything, Ruby felt it was cramped. Most likely because of the size, there was no foliage in it. The only things in the room were the desk, Glynda's chair and another chair for whatever guest was there. A very Spartan way of decorating, but Ruby figured it fit Glynda nicely.

Just in case nobody would see, she decided to draw curtains over the window. And then she sat down on the guest chair and waited for Glynda to arrive.

Before long, she started fidgeting, less and less sure about her plan working. But she was in too deep, she would have to go with the plan, no matter what. She was pretty sure she wouldn't really get expelled and would instead, at worst, get punished a bit. It was times like that when she silently thanked Ozpin for basically being her shield at the school, allowing her to get away with a lot of stuff that usually wouldn't be tolerated.

The time of Glynda arriving was approaching fast and before Ruby knew, it was only ten minutes. She reached into her bag and pulled out a small egg-shaped vibrator that she immediately secured close to her clitoris and put on the low setting, which was powerful enough to feel the vibrations, but not powerful enough to get her off quickly.

She was sitting back for a few minutes when she heard footsteps approaching. She took a deep breath and rose from her seat. It's now or never, Ruby. You have to try.

The door opened and in walked a very angry Glynda Goodwitch in all her glory, Ruby's breath hitching for a moment as the angry gaze of the teacher locked on her.

"Miss Rose, you have a lot of explaining to do," Glynda said with conviction. Ruby's look didn't falter and remained fixed on those amazingly beautiful eyes of her teacher as she was gathering courage to say what she wanted to say for the last few months, ever since the woman in front of her helped her fight Roman on that store rooftop.

"Miss Goodwitch," Ruby started, "I know this is a bit weird because you're that much older and I hope I won't weird you out too much with what I'm about to say because that's the last thing I want and I really, really don't want to sound too forward or anything but I find you amazingly beautiful and…"

Ruby kept on rambling as Glynda's face turned from an angry one to a puzzled one to a knowing one and so on and so forth.

"… and you look so badass when you fight and graceful and beautiful and," Ruby noticed the change in Glynda's face, "and I will stop now before I embarrass myself further than I already have." Ruby faltered and directed her gaze at the floor while blushing furiously.

Glynda's face softened. She's actually cute when she's flustered like now. It's still wrong, though. She's my student! I can't allow myself to think like that about her!

"I'm sorry, Miss Rose, I didn't quite understand your rambling right now," she replied with a slightly softer voice she was expecting to use.

Ruby noticed that the door was already closed and without as much as a word, she practically jumped on the teacher and crashed their lips together.

Glynda quickly regained her composure, but instead of throwing the a-bit-too-daring-for-her-own-good girl off her, she eased into the kiss for whatever reason.

Did it really feel so good, being kissed by a delinquent girl? Well, apparently she was acting like that to get me alone or something, but still. Was it just the sensation of lips against hers, something she would never admit she yearned for with every pore of her being? That she wanted so badly to love and be loved in return?

She wasn't able to think for a long time, though, as she felt something vibrating near her pelvis. After a quick realization, she pushed Ruby away and the girl barely managed to land on her feet, slightly puzzled as to why she was so rudely interrupted from the best feeling she ever felt in her, admittedly short, life.

"D-Did I do something wrong, Miss?" She really didn't get it. Not even ten seconds ago, that woman was eagerly kissing her back. Ruby then felt a jolt, sensing the vibrator doing its job. She hitched a breath, enjoying the jolt but barely managing not to quiver from the sensation.

Glynda threw all caution to the wind and went straight for Ruby's crotch. "What is that? And why is it there?"

Ruby nearly orgasmed right then and there at the touch, bucking her hips, deepening the touch and letting out a pretty loud moan of pleasure. Glynda didn't push away though, sensing her opportunity. Fuck it, might as well now, no turning back. She pushed Ruby to the wall and started rubbing the spot under her fingers. Ruby was in a state of near delirium, but she managed to look around to see that the desk was close enough. She leaned in and whispered in Glynda's ear.

"I'm glad you let your guard down."

Before Glynda could process what was going on, she found herself bent over her desk, with Ruby's lithe fingers exploring her back, gently slapping the butt from time to time.

If you'd ask Glynda, she would not say she'd allow herself to remain powerless in a situation like that. For some strange reason though, she didn't try to fight her way on top of the younger girl again, becoming oddly aroused at the thought of letting herself relax and let the other girl do whatever. Within reasonable boundaries, of course.

"Glynda, did anyone ever tell you that your ass looks amazing?" Ruby asked, giving another light spank on the same behind she just complimented. Glynda let out a hiss of pleasure at the gentle touch, even though she half wished for it to be a bit more powerful. She didn't even hear the way Ruby addressed her.

"You know, I have a plan for you, Glynda. Just relax and let me do something."

With that, Ruby made Glynda stand up before quickly and lustfully unbuttoning her blouse, freeing the extremely fit belly of the woman, together with a pink bra. I did not expect that colour. She continued by grabbing the supple breasts over the piece of cloth covering them, making them jiggle and Glynda moan silently. Ruby didn't cater to them for long, though, she was on a mission to undress the sexy teacher as quickly as possible to make the second part of her plan work.

Her quick fingers unclipped the bra with lightning speed and before the bra hit the floor, Glynda felt herself being bent over the desk again before Ruby started fiddling with the skirt. Before long, the teacher remained solely in her underwear and stockings. Ruby stared at the magnificent derriere before her for a second and then slapped hard on one of the cheeks, making Glynda hiss, half in pain, half in pleasure. Before undoing the panties that were pink lace, a part of the same set the bra was from, Ruby went to her bag and picked something out of it.

Glynda didn't have time to guess what it was, because lightning fast, her legs were tied to the desk feet, making her spread her legs and helping Ruby get a better look at her most private part.

The reaper didn't waste time admiring Glynda's core, but instead tied the teacher's arms to the desk too, before starting to whip that magnificent ass with a riding crop. Glynda's riding crop.

As she did that, the trapped teacher squirmed under every lash, hisses turning into moans of want. She wanted to be dominated to hell by this seemingly innocent girl. She didn't even question it at that time anymore. The usual dominant nature she emanated during classes? Gone. Her dignity in front of Ruby? Just as gone. She would be perfectly happy spending the rest of the day in this position if it meant Ruby pleasuring her.

Meanwhile, Ruby's vibrator started bringing her towards the edge, the vibrations amplified by the dominant position she asserted over Glynda Goodwitch herself. She was moaning just as loudly as Glynda, if not more, with every lash. Every lash became weaker as well. She got fed up with it and stopped whipping her victim, getting undressed becoming her main priority. Undressing the corset was by far the most laborious part of the process, frustrating her to no end. After finally managing to shed all her clothing, she ripped the egg from her clitoris and propped herself on the desk, her core centimetres away from Glynda's mouth.

"You better make me cum quickly or you won't get any more pleasure, not to mention me leaving you here as is."

Yes, the talk wasn't as naughty as she wanted it to be, but it seemed to serve its purpose, making Glynda extend the tongue from her mouth and towards the sopping wet pussy folds in front of her.

The moment the tongue touched her labia, Ruby yelped with a voice Glynda would later describe as "the cutest little sound ever", making the reaper become as red in her face as the gemstone she was named after. This encouraged Glynda to be a bit more daring in her approach, however hard it was for her to do it, what with only her tongue being close enough to the opening and no way of getting closer unless Ruby scooted an inch or two towards her face.

She was making slow laps around the outer labia, brushing the clitoris every time she made a circle. After four laps, Ruby seemingly lost control and pulled herself closer while shoving Glynda's face in her core, finally giving the teacher enough stuff to work with.

That was when her expertise at eating a girl out came to its potential. Glynda has had sex with many girls and women alike before that day, but the one thing she lacked from all those encounters was passion, which seemed abundant with this girl. Her masterful tongue work and lip massage made Ruby convulse in no time. It would probably achieve the same if Ruby wasn't already as aroused as she was.

Ruby screamed as the orgasm hit her hard, actually squirting a little for the first time in her life. Glynda had her eyes closed just in case, and was relieved when she felt the liquid hit her in one of her eyes, somehow getting over her glasses. Wouldn't want that in my open eye.

After recovering, Ruby jumped down from the desk, barely catching herself from falling as her legs were still a bit wobbly from the mind-shattering orgasm she just had. She caught herself on one of the bookshelves behind the desk.

Breathing heavily, she returned to her dominatrix mode. "That was actually decent, honey. I'll make sure you receive a reward." She took a latex glove from her bag and put it on her left hand, then approached Glynda's still covered, but most definitely not dry folds. With one swift move, she pulled the panties as far down as Glynda's spread legs allowed, but, unsatisfied with the result, gave them one hard yank, tearing them in half.

"Ruby Rose!" Glynda wanted to object, but she couldn't say any more before she was silenced with a hand over her mouth.

"Nuh uh, Glynda." The teacher's eyes widened at the audacity, apparently registering for the first time that this student of hers called her by first name. She tried to protest further, but the grip on her mouth tightened. "It's Master when we're like this."

The command in Ruby's voice made Glynda even wetter than she already was. She wanted to just submit herself to this amazing girl. She nodded.

"If you're worried about the panties, I'll buy you new ones. If you'll be a good pet today."

With that, not even waiting to register Glynda's reaction, Ruby returned to where she was before, namely, under Glynda's leaking core. She started teasing the region with two fingers of her gloved hand and roamed the insides of her school bag for her favourite vibrator with the other hand.

The toy was in her hand soon after that and she immediately brought it closer to Glynda, who heard the buzzing and immediately knew what it was. She braced herself for impact, but instead she felt two fingers enter her, buzzing still there, but not touching her, apparently. She let out a whimper.

"What is it, Glynda? Are you such a slut that you need something bigger in there?"

If the person on the other end would be anyone else, Glynda'd evaporate them in a second. But because it was Ruby, she just whimpered again. "Please, Master! I need it!"

Ruby grinned evilly. "Not good enough. Beg, pet. Show me how much of a slut you really are."

With that, she brought the vibrator just close enough to Glynda's clitoris that she could feel the vibrations, but it wasn't actually touching it. Glynda whimpered again, this time almost pathetically enough for Ruby to reconsider cutting her suffering. She decided against it, though. She needed to keep her façade.

"Master, please, I beg of you! I need it so badly, I'm such a slut! I beg you, Master, put it in!"

"That's better," Ruby said, pulling her fingers out and placing the vibrator at the entrance. The moment it touched the aroused skin, Glynda screamed in pleasure.

A slight push and the toy almost slid inside the teacher's vagina whole. With that, Ruby set the power to max and brought her lips right next to the clitoris, wanting to taste the tied woman. She took the nub in her mouth and started sucking on it gently, making Glynda let out another scream of pleasure, that time it was so strong that Ruby was sure most of the school heard it.

After relishing in the salty taste of her teacher, the lips were substituted with a gloved finger and all signs were pointing to Glynda being on the edge of orgasming. Her screams became full on animalistic yells and her breathing was growing more and more ragged by the second.

"I'm cumming, Master!"

The moment Glynda said those words, Ruby stopped all ministrations and pulled the vibrator out of the soaking wet vagina. Glynda screamed in frustration. "Why, Master?"

"I never said you can do that already, pet," Ruby whispered in her ear. Glynda shuddered at the sound, and it nearly drove her over. "Your orgasm or lack thereof is under my control. Understand?" The tied woman nodded weakly. "So, while we wait for you to calm down a bit, why don't you eat me out a bit more?" With those words, Ruby propped herself on the desk almost identically like she did before.

The commotion went on for a while. Ruby orgasmed, then returned to drive Glynda so infuriatingly close to orgasming herself. The cycle continued for way too long in Glynda's mind and way too short for Ruby. But she decided she had enough of torturing her helpless pet and after four more orgasms she decided to put the teacher out of her misery, even if the anger and frustration in Glynda's screams every time Ruby nearly made her cum were like music to Ruby's ears.

The real music to Ruby's ears, though, was the scream of absolute bliss when she decided to let Glynda over the edge. Ruby had never heard anyone scream as loudly before in her life.

When the violent convulsing of the teacher's body subsided, Ruby got close to her face and gave her a long, loving kiss, entering her mouth with a tongue and subduing the almost immobile tongue of the completely spent woman lying on the desk. Then she quickly scribbled down her Scroll number on a piece of paper and let it in front of Glynda's head. "For when you want the next time, Glynda. You were a great pet."

She then kept herself busy with untying her from the desk, but the teacher didn't seem to want to rise. She just continued lying there, unable to move a muscle. Ruby gave the luscious vagina in front of her one more kiss, just to taste the woman again, dressed herself and left. Glynda was already asleep at that time.

She awoke, feeling cold. The room around her was completely dark. She quickly realized she was stark naked in her office, still bent over the desk where Ruby Rose fucked her brains out so hard she fell asleep not a minute later. She rose from the desk, albeit slowly as her muscles were still rigid, and noticed a piece of paper with Ruby's name and number on it. She smiled and started dressing herself, not including the torn panties.

Ruby Rose, you're definitely something else. Just be careful. Next time you might not be so dominant.

Thanks for reading, reviews are appreciated.