The rest of the afternoon and evening went by in a bit a blur for Rarity as she didn't really remember all that much of it, she couldn't recall going to bed that night or even whether she had left her room at all since Rainbow Dash had gone, leaving her all alone once again, it seeming like things became all blurry in her mind after the events of yesterdays afternoon had taken place. The unicorn being woken up by the bright beams of the blinding sunlight streaming in through her open curtains from her bedroom window, causing her to stir in her sleep, her tired eyes blinking a couple of times as they got used to the brightness of the room, before she pulled the covers over her head and rolled away from the morning sunlight coming in through her window, sighing heavily while her mind was still spinning with thoughts about yesterday.

'I let it happen again...I let Rainbow...do all those perverted things to me...' she paused on her thoughts as all the events of yesterday raced through her mind, causing her to rub her temple with a hoof, and pushed the covers off her a moment later, lying with her head resting on her pillow while she gazed up at the ceiling as thoughts of a certain cyan pegasus were still invading her head. Making her grit her teeth together and blush when thinking about all the two of them had done in these past two days, knowing they had crossed lines close friends just shouldn't cross, but at the same time she couldn't help feel she was kind of glad that her and Dash had ended up having sex once again yesterday, after all thinking back on everything that had happened it had actually helped in making a few things seem a little clearer to her now.

'Well at least one good thing came out of yesterday, I finally know the answers to some of those endless questions I've been constantly asking myself since that stormy night when Rainbow stayed here with me,' Rarity sighing, knowing that she still had a bunch of unfinished dresses downstairs, needing to be completed, still had clients to call back, still had meetings to arrange and hold, however she just didn't feel like doing any of those things at the moment, guessing that she most likely wouldn't be able to focus on anything but Dash and all that had happened between them over these past two days, and probably wouldn't get anything done at all.

Nonetheless the unicorn did feel somewhat relieved since she now had been able to find out the answers to some of the questions that had been spinning around inside her mind for the past couple of days, 'There are still quite a few things I'm unsure of, but...I now know just why I let myself just submit to Rainbow Dash's advances, why I didn't resist her at all, and why no matter how much I tried I just couldn't stop thinking about her as well as all the things she had done to me. I realised it yesterday not long after Rainbow had left...but really I should have realised it much sooner now that I think about it all,' she sighed yet again and sat up in her bed, guessing she should have seen the answer from the start, but figuring that she just didn't want to actually admit the reality of it all to herself.

'The truth is I've never had anypony ever take complete control of me like Rainbow does, I've never had anypony dominate me the way that she did yesterday and the day before that, and because of that I realised that I actually...like being treated that way. Although I know I shouldn't let my desires get the better of me and I should keep my composure even if Rainbow was tempting me I should still be able to keep myself in check, but I couldn't...I couldn't deny that I liked being teased and pleasured, I wanted Dash to dominate me because...I actually liked...no...I loved being her 'Slave'. It felt good to call her...'Mistress', it felt so good to have her doing all those things to me, while it was like I was helpless against her, I couldn't do anything to make her stop, because I didn't want her to stop, I wanted her to continue treating me the way that she was...I...I...I still want her to be here with me...right now,' the unicorn's mind now rushing with hundreds of images of the cyan pegasus racing through her head, causing to her blush deeply when it seemed like Dash was all she could think about, all she wanted to think about, as she tried shaking her head a couple of times, hoping that she could push all these thoughts to the back of her mind for now, but it clearly not working out that way for her as she couldn't help but start to pant heavily and tremble slightly when thinking about Dash's seductive expression look down to her, trapping her in her tight clutches and refusing to let her go.

'I'm still a bit confused about all this, and I know I have a million things that need doing, but...I just don't feel like doing any of them...I don't feel like doing anything right now, I...just want Rainbow to be here...I need her to be here...' Rarity soon just feeling like she should give into what her desires were clearly telling her at the moment. Her heart pounding loudly inside her chest as her face felt flushed, as she knew she was starting to get aroused again when thinking about Rainbow Dash and couldn't deny her body of the pleasure it was craving for right now, knowing that she wouldn't be able to ignore it for much longer.

'I know I'm being selfish right now...but I can't help it. Dash...M-Mistress Rainbow...I can't take it anymore...I'll be a good slave, so...so please...ravish and violate me as many times as you like...I don't care anymore...just please...come and relieve me from all this desire...I want you so badly Rainbow...I need you...' she begged and pleaded inside her mind, wishing that a certain cyan pegasus would just come brusting through her door, while she let her body do whatever it liked right now, knowing that she would never normally give into doing such indecent things, but she couldn't stop herself, she needed this and so let her hoof slowly travel down her body as it neared her nether regions, knowing just how aroused she was down there at this moment in time.

'I can't believe I'm actually thinking of doing such a thing, but...I feel like I really need this right now, my body is graving for a release, so maybe...just for a little while I could...' she paused on her thoughts as she let another heavy sigh leave her lips, before she just let her head hang slightly and finally gave into the strong desire she felt constantly nagging at her, deciding to get this over with and hopfully put it all to rest for now.

....

Meanwhile Rainbow Dash had been up early with work once again, however finding that she also had been having trouble with staying focused on the tasks she still had to finish, her mind seeming to be quite preoccupied at the moment as the pegasus had decided to take a break from her normal everyday weather patrol and sat all alone on a cloud near to the weather factory, thinking to herself as well as keeping an eye out for any other weather ponies, as she didn't really want to be caught slacking off from her work.

Letting a slight sigh leave her lips as she rubbed her forehead with a hoof, gritting her teeth a little, 'I wonder...can I really keep doing this? All this stuff that's happened between me and Rarity in the past two days...I mean I know I started it all with that bet I made with her, but...I didn't intend for things to go this far,' Dash thought to herself as she was trying to collect all that was going on inside her mind right now.

'I mean going all the way with Rares did excite me I will admit that, seeing that submissive side to her that I didn't know she had, and I can see she likes it as well, no matter how much she might try to deny it. Plus having her as my slave could still be fun, but...maybe I should back off somewhat and not tease her anymore,' she wondered before she thought about how Rarity reacted to her teasing and advances, knowing the unicorn would easily get annoyed with her, but then remembered something that caused her to ask herself a few questions in return.

'But if I annoy her by teasing her like that, then why does she let me go further? Why does she not resist me or tell me to stop at any time?' these being the questions the pegasus asked herself as she tried to think more deeply about everything that was going on with her and Rarity, wondering just how the unicorn really felt about it all, 'Rares told me yesterday that it was like how I had said and was just 'a bit of fun between friends', but then if that's really the case...why did she seem to get so defensive and nervous when we were talking about it? She might not be telling me the whole story here...maybe I should go talk to her and see what she just might be hiding from me about this whole situation,' she thought, guessing that going to see Rarity could be beneficial for her, and she could just maybe get the answers to the questions that were on her mind at the moment.

Nodding to herself as she decided to go see Rarity once her work was done, after all having a talk with the unicorn could make it clearer as to where things should go from here between them both, and hopefully she could find out just what the other mare might be keeping hidden from her at least. Looking confident as she stood up straight and figured she better get back to work before she ended up being away for too long and causing the other weather ponies to wonder where she was, pushing all her thoughts about Rarity to the back of her mind for now, and wouldn't bother with them until later when she would go to speak to the platinum unicorn, strenching out her wings and flying off back towards the weather factory being sure to concentrate on her work for the time being.

....

Dash luckily being able to focus on her work better since she had collected her thoughts a little, and this meaning that she soon finished her work and decided to quickly head for Rarity's boutique, having had completed her work faster than she first thought she would, and hoped she wouldn't be calling in on the unicorn when she was busy. Feeling slightly nervous once she had gotten to her friend's home, hesitating somewhat but shaking her head a moment later as she nodded to herself and decided to just go for it and not worry about how this may backfire on her for now.

Knocking on the door with a hoof and waiting patiently for a reply, however not getting one it seemed as she stood waiting for a while before she tried knocking again, being louder this time but again she got no answer and so called out to the unicorn.

"Rarity! Are you in there?"

The pegasus waiting for some kind of response however not getting any at all it seemed, concerning her for a moment wondering if maybe Rarity wasn't home right now, and so thought she would check and turned the handle with her wing, only to widen her eyes upon finding out that the door was actually unlocked, causing Dash to guess that the fashion pony was probably just lost in making her outfits right now and so likely didn't hear her knocking or calling out to her.

Opening the door and walking inside the boutique Rainbow Dash expected to see the unicorn hard at work on her dresses, but once she entered her friend's home she noticed that all the curtains were drawn, and it seemed like the place was closed for the day by the looks of things, so the cyan mare deciding to call out once again hoping to get a reply this time, "Rarity! Are you here?" she raised her voice and waited to hear sound coming from any of the rooms in the boutique, but hearing nothing for quite a few minutes, caused her to wonder if the unicorn had actually gone out and maybe forgot to lock her door or something.

Debating if she would just leave for now and try calling back later since it didn't seem like Rarity was here at the moment, however just as she shrugged her shoulders and turned heading for the door again, her ears twitched to a fairly faint 'thud' she heard come from upstairs, causing her to stop in her tracks and look up, waiting to see if she would hear anything else, and sure enough another slight 'thud' reached her ears, and after hearing a few more she decided to go and investigate the sound as it was soon beginning to get louder and louder the closer she got to where it was clearly coming from.

Soon coming to Rarity's bedroom door, noticing that the 'thuds' had become much louder now as she stood outside, feeling like she shouldn't really be walking around the unicorn's home without her premission to do so, but something was making that 'thudding' noise and she didn't really want to leave without finding out what it was, deciding that she would leave as soon as she found out what was causing that sound, and would come back later when Rarity had returned back home. But as she approached the bedroom and was going to knock with a hoof, another noise caused her to halt and raise her eyebrow in a questioning way, this one not being a slight 'thud' like before, instead being what sounded like a quiet moan.

"Mmm...Rainbow...ahh..."

The pegasus's eyes widening upon hearing her name being called out in a rather low voice, followed by a few heavy pants, and that familiar 'thud' that she had been hearing for a short while now, all this causing her to look a bit sceptical, biting her bottom lip and blushing slightly as she waited to hear more, 'That's Rarity's voice...she's moaning out my name and panting...is she...is she really doing what I think she is right now?' she questioned to herself as she slowly turned the handle of the bedroom door with her wing letting it open just slightly so that she could peek through the small gap.

Her magenta eyes going wide once again as she looked into the bedroom and was surly surprised by what she saw, seeing the platinum unicorn sitting up on her bed with her head resting against her headboard, and her hind legs spread out as one of her front hooves was slowly stroking over her currently soaked marehood, while her whole body would tremble, her hips would thrust against her hoof, begging for more pleasure, and her head would be jerked back a little, hitting against the wooden headborad behind her which what must have been causing that 'thudding' noise Dash had been hearing and following for the past few moments. Also notcing that Rarity was still wearing the collar she had put on her yesterday, causing her to wonder if she had taken it off at all just yet.

Rarity having her eyes closed at the moment, as she was dripping with her own sweat, and with every slow stroke of her hoof she would moan out the cyan pegasus's name, her voice becoming louder as she was being a little rougher with herself, increasing her speed and feeling her heart racing wildly in her chest as she knew her body was glad that it was finally getting the plesaure it had been craving and nagging her for, while she let her imagination run wild, fantasizing that it was Rainbow Dash's hoof stroking her sex right now instead of it being her own.

"Rainbow...M-Mistress Rainbow...please...do me harder..."

She moaned out between heavy pants, pleading for more pleasure as she soon began to double her efforts, causing her climax to start building up inside her lower abdomen, hoping that it wouldn't be long before she would reach her limit and could just be happy that she was able to relieve herself so that she could finally get on with the things she still needed to get done from yesterday.

However that not seeming to be the case as a moment later a very familiar voice caused her to instantly stop pleasuring herself and snap her eyes open, realising that she was no longer all alone in her room anymore, "Well...when my slave begs me in such a desperate way, how could I not do as she has asked?" Rainbow smirked as she looked to Rarity with a raised eyebrow, causing the unicorn to widen her eyes is shock, going completely slient as she froze and had no idea just how to react right now, blushing deeply, and feeling embarrassed beyond belief as she couldn't quite believe the exact pegasus that had been on her mind for the past couple of days had just walked in and caught her in the shameful act of indulging herself while fantasizing about her pleasuring her.

Rarity just staying silent for a few moments as she tried to compose herself, still panting slightly and feeling her heart continuing to pound loudly inside of her chest, while she soon sat up straight and turned away from Dash, her face flushed and her front hooves covering her exposed and very much aroused marehood, "W-what are you doing here Rainbow Dash...don't you know it's rude to just walk into somepony's home?" she said trying to sound angry, but not being able to hide the obvious nerves in her voice, unsure if she should even try and play this off like she wasn't embarrassed at all about being caught masturbating while thinking about the cyan mare when it was clear to Dash that she definitely was, after having seen and heard it all.

"Well actually I came here to talk to you about something, but when I knocked and called out for you, I didn't get an answer. Also for your information I was going to leave and come back later, since it didn't seem like you were here, but then I heard all this noise coming from upstairs, so I thought I should find out just what was making it...and now I'm really glad that I did," the pegasus simply explained as she stood in the open doorway, still smirking to the unicorn, while she backed up a bit on her bed when she saw Dash close the bedroom door behind her now and begin to slowly walk towards her bed.

"Listen...don't get the wrong idea Rainbow, this isn't what it looks like- Rarity tried to quickly think of some sort of excuse that might just work, but seeming to be drawing a bit of a blank as her mind was still being clouded by her unfulfilled desire, knowing that stopping at the moment had caused her body to be left unsatisfied, feeling that her core was still begging and constantly nagging at her for a release of some kind, guessing that she wouldn't be able to deny it for long as she was still slightly trembling when feeling the fur on her front hooves brush against her aroused slit, while they covered her exposed sex and would make her shiver every so often.

However Dash soon cutting her off as she raised an eyebrow to the unicorn once again and came to stand beside the other mare's bed, "Oh don't worry Rares I understand that you were just relieving yourself, we all do it after all. So please go ahead and contine, don't let me stop you," she stated with a clear seductive tone, coming to sit beside Rarity on her bed, as she moved closer to the unicorn, causing her to back away again slightly and shake her head in reply to the pegasus.

"What? There's no way that I would do something like that- Rarity's voice becoming a bit defensive and uneasy as she really couldn't imagine letting herself continue to masturbate while the mare causing her to do the indecent act in the first place was right in front of her. However she knew she couldn't deny her body of the pleasure it was craving for, that fact and the cyan pegasus herself making it hard for the unicorn to keep her composure and not give in.

"But you were enjoying yourself weren't you? Come on there's nothing wrong with it after all,"

Rainbow cutting her off once again as she moved closer to Rarity, causing her to keep backing away unitl she could no longer go back any further and had her back pressed up against her headborad, blushing deeply and gasping when she felt the other mare grab on to her hoof and slowly guide it back to start pleasuring her soaked sex again, causing the unicorn to bite her lip and tremble all over, feeling her body heating up as it was obvious that she was glad to have her desires answered finally rather than just being ignored.

"Ahh...Dash...mmm..."

Rarity starting to pant and moan again as she couldn't help but roll her hips into her strokes, soon finding that Dash didn't need to guide her hoof anymore at all, as her body was basically just moving on its own now, causing herself to tremble with every slow stroke, it not seeming like she was in control of her movements anymore.

'It's like I can't escape and stop myself from doing the things she tells me to, like I'm unable to go against her and try to escape from her clutches, although to be honest...I don't want to escape, I'd never thought I would ever do something as shameful as pleasuring myself while somepony else watches me, but...I can't help it...this is so humiliating, but...I can't stop, I need this...' the unicorn thought, as she no longer felt like she had any fight left in her and just allowed her hoof to keep stroking her aroused slit, increasing her speed a little as she soon knew she would end up causing her climax to begin building up inside her lower abdomen again.

"You see Rares, doesn't that feel better?"

Dash asked in a low, seductive tone, as she could see she no longer needed to guide the unicorn's hoof anymore and so just leaned into her and kissed her forehead, before giving her horn a few slow licks, causing Rarity to gasp and grit her teeth as she had never had anyone play with her horn before, and so was surprised by the way every slight lick and kiss made shockwaves ripple throughout her entire body.

"Rainbow...why...why are you...licking my horn?" she questioned between heavy pants and low moans, clearly having no idea that having her horn licked and kissed could feel this good. While Dash simply just shrugged her shoulders as she paused for a moment and just smirked to Rarity.

"Well I have been with my fair share of unicorn mares in the past, and every one of them really liked it when I went after their horn. Looks like you're no different Rares," the pegasus stated as she slowly licked Rarity's horn starting from the base and going right up to the very tip, before kissing the end lightly and then taking the whole of it into her mouth, sucking down deeply, and causing the other mare to cry out in sheer pleasure.

Throwing her head back a little and moaning out loudly Rarity already felt like she was getting close with pleasuring herself, and adding these blissful shockwaves into the mix was just causing her climax to build up faster inside of her, knowing it wouldn't be long until she would be on the very edge and wouldn't be able to hold back at all. Rainbow guessing that Rarity was getting close as well by the way she would constantly buckle her hips and thrust against her own strokes, soon enough doubling her efforts and making it obvious that she couldn't take much more of all this pleasure.

"R-Rainbow...I can't take anymore..."

"The what do you say?"

Dash simply asked, causing Rarity to widen her eyes and swallow slowly as she clealy knew exactly what the other mare wanted her to say right now, and she was so close to reaching her limit that she didn't even bother to think twice as she gritted her teeth together tightly before opening her mouth to speak again.

"M-Mistress Rainbow...please...make me come..."

She whispered out looking to Dash with a pleading expression, causing the pegsus to just nod back to her with a smile, moving to suck down hard on Rarity's horn, as well as resting a hoof over her's and guiding the unicorn to double her efforts yet again, as it seemed like all this endless pleasure was just too much for her.

Letting a scream of release escape her lips as she rolled her hips against her hoof, riding out her orgasm as she felt like her mind had gone completely blank and she was just melting into this moment, feeling Dash still sucking on her horn, until she started to show signs of coming down from her high, panting heavily now trying to catch her breath. While the pegasus simply gave her horn one last, long lick before pulling away for her and causing the unicorn to look back to her with a blushing expression.

However not getting all that much time to recover it seemed as a moment later Rarity realised just why Dash had pulled away from her, her eyes widening as she noticed the other mare postioning herself to have her hind legs over-lapping the unicorn's, closing the small gap between them and causing Rarity to look taken aback seeing that the cyan pegasus didn't plan on stopping just yet.

"Dash...what are you...Ahh!"

Rarity crying out as she felt Dash's aroused slit rubbing against her own drenched sex, causing both her and Rainbow to tremble in response to the pleasure they felt from their marehoods beginning to thrust against each other, while their already swollen clits would kiss lightly every so often.

"Well you can't have all the fun Rares, after all you got to cum so it's only fair that I get to do the same right?" Dash simply said as more of a statement than a question as she thrusted against the other mare, causing her to thrust back in return, matching the pegasus's rhythm as her body moved by itself, while Dash just increased her speed and was soon overwhelming the unicorn easily.

'Rainbow's...it's rubbing against mine...she's just as soaked as I am down there...I can hear her panting and letting out slight moans just like me, she's trembling all over like me as well. I've never seen her like this before...I want...I want to see more...I want to make her moan more...I want to pleasure her more...' Rarity thought as she could feel her heart still racing wildly inside her chest, while trying to match Dash's fast and deep thrusts, but not being able to it seemed and instead just kept getting overwhelmed by the more experienced pegasus.

The both of them moaning over and over again, as since Rarity had already come a little eailer, she was now much more sensitive, causing her climax to quickly start building up inside her lower abdomen again, luckily it seeming that Dash had been quite turned on all this time while watching the other mare pleasure herself, and it wasn't long before she also felt like she would be reaching her limit soon enough.

Dash doubling her efforts and causing Rarity to hold her close, as she bit her bottom lip and cried out louder, knowing that it wouldn't be long before she couldn't hold back anymore and would end up reaching her limit again, 'I thought this was all one-sided, I thought I just wanted to be dominated and pleasured by Dash since everything felt so different with her...and so much better. But...now I want more than anything to do the same things to her as she has done to me, I want...I want to make her feel good as well...I want to touch her...I want to kiss her...I...' pausing on her thoughts as she felt like she was getting so close now, having given up on trying to match Rainbow's fast rhythm, and instead just let her overwhelm her again and again, as it wasn't very long before they both felt like they couldn't take much more of this.

"Rainbow...I'm coming again...Ahhh!"

"I'm getting close too Rares...so why don't we cum together?"

The panting pegasus suggested, causing Rarity to widen her eyes, gazing into Rainbow's magenta irises deeply, nodding to her as Dash just gazed back to her and smiled, pulling her into a passionate kiss a moment later as they both thrusted harder against each other over and over again, until they felt like they were on the very edge, it only taking a few more thrusts before the two of them ended up moaning out one another's name as they felt absolute and instense pleasure rippling throughtout their entire bodies, causing them to roll their hips against the other, riding out their shared orgasm for what felt like ages.

However it only lasting a few minutes in reality as they soon were starting to recover, basking in their shared afterglow, Rarity resting her head on Dash's shoulder as she panted heavily, trying to catch her breath, while the pegasus just wrapped her front hooves around the other mare and embraced her close, sighing once she had started to come down from her high waiting for the unicorn to do the same, but was instead all too surprised to hear what Rarity whispered out as she had finally seemed to catch her breath now.

"Rainbow...I...I love you,"

The words leaving her lips but sounding like they were meant to be spoken inside of her mind instead of out-loud, as she seemed just as taken aback as Dash did as she pulled away slightly, while they both just sat looking to each other with wide eyes, still holding on to one another tightly and neither one of them knowing how to respond to what the unicorn had just accidentally let slip all of a sudden.

Author's Note

And this is where things become a little more complicated between Slave and Mistress.

Thank you ever so much for reading.

KillerChainsaw ;)