//-------------------------------------------------------//
                     Shared Sensation                      
                        -by Mpony1-                        
//-------------------------------------------------------//
//-------------------------------------------------------//
            Magical Induced Orgasms are a pain             
//-------------------------------------------------------//
Magical Induced Orgasms are a pain
[Canterlot High School]
Twilight and Rarity walked down the halls of the school chatting to one another as they made their way their first period class.
"Did you get a text from Sunset early this morning, saying that she'll be taking the school day off because Princess Twilight came to visit?" Asked Rarity.
Twilight nodded. "Yep! Ever since those two started dating, other me have been visiting more frequently."
Rarity giggle. "They do make a very cute couple." Rarity smile drop. "But still it doesn’t really seem fair that Sunset gets to stay home from school to keep the other Twilight company.” Rarity whined, walking alongside her Twilight.
Twilight adjusted her glasses “Well she can't just invite her and leave her alone for 8 hours! That would be rud!.”
“I would’ve gladly done so.” Rarity pouted. "I would've enjoyed having a day off from school and spend some quality time with the princess."
“Hey!” Twilight pouted at her girlfriend. “What about me?”
"Oh! Don't you worry none, darling! You're the only Twilight for me and don't you forget that."
Twilight was about to say something but she suddenly paused, feeling something strange that made her breath catch in her throat.
“Still! I wonder what they’re getting up to, right now."
“I-I think I know!” Twilight’s blushed and stopped walking. “Uh! E-excuse me! I have to go to the bathroom.”
“You know where I’ll be, dear!” Rarity turned to smooch her on the cheek but Twilight had already taken off in the other direction. “Hmf!”
Twilight felt a shiver up her spine as she hurried down the hallway. Moving as fast as she can hoping she wasn't drawing too much attention to herself.
"God damn those two! Why do they all ways keep pulling this shit!" Twilight thought.
She knew from the second Sunset sent that text earlier about the princess visiting and that she was staying home, that this was going to happen sooner or later and it all ways angered her to no end.
Ever since the other Twilight and Sunset started taking thier relationship to highly intimate levels. She’d been suffering from a strange magical… phenomenon. It would seem that both Twilight's shared a certain sensory stimuli and right now her counterpart is causing the sensation of one sort of stimuli in particular.
Twilight felt another shiver and twitched between her legs, making her walk faster. With the bathroom door within reach she burst into the restrooms. Fortunately no one else was inside, which was a bonus, but it hardly would of matter.
Moving quickly she entered the first stall and latched the door behind her. She quickly moved in front of the toilet, lifting the seat with one hand as she unbuttoned her pants with the other. She winced as she felt the princess getting close, and hurried to tug her cock out of her panties as she felt her twin’s orgasm hit them both. She just barely made it in time. The moment her dick was free, a rope of cum sprayed out and landed on the back of the toilet. Twilight had to bend over and quickly angled her cock downward, letting the rest of her cum pump out into the toilet water with muted splashes.
After about thirty seconds, it was over, her cock twitched with nothing left to release and the toilet water looked cloudy with cum. She didn’t even bother tidying up. She flushed her load and shoved her penis back down into her panties. Her balls buzzed with the satisfaction of being empty but mentally, Twilight couldn’t enjoy any of that satisfaction. She knew her next one could come at any moment, regardless of where she was.
"Augh! I'm gonna need to have a talk with those two!" She thought angrily as she button up her pants and left the stall, she walk over to the sink to start washing her hands, resuming her thoughts. "I mean seriously! We had an agreement for pete sake's. But they been breaking the rules every time other me comes to visit; which is quite often." After her hands were wash. Twilight walked over to the paper towels dispenser to dry them."I always make sure to send a text to let them know long before me and Rarity have sex, so other me would be ready for it, but nooooo! They no longer bother to do same for me, always going at it whenever they can and causing me SO. MUCH. TROUBLE! ARRGH!!!"  Twilight threw her balled up paper towel in the trash in a fit of annoyed anger and stormed out of the restroom to go to class.
******   
(Later)
While everyone was at lunch, Twilight decided to go to the Library to catch up on a little studying. She walked down the school's empty hallway, grimacing at how hard her cock was. Sunset and the other Twilight were acting up earlier than usual and she'd already gotten way too sensitive for comfort. She could feel the pressure on her shaft as though it were being squeezed into something and she blushed hard, knowing exactly what was doing the squeezing. This was always the most punishing part as the pleasure first began to escalate, unable to do anything to stop the inevitable. She knew she would have to cum soon.
With every step, she could feel the swollen head of her cock brushing against the inside of her panties, adding additional stimulation. All she could do was walk towards the bathroom, hand in her lap to conceal the obvious erection in her pants. She pressed her wrist into her crotch to stop it from shifting so much but her back tensed as she felt that familiar feeling.
“Oh no… not yet...not now!”
This had happened enough times that Twilight knew exactly when she passed the point of no return, and her pleasure climbed quickly toward her peak. Twilight curse her rotten luck. The part of the school she was in had no restrooms nearby, and their was no way she could make it to one in time before she explodes. She looked frantically around for something, anything she could use to cum in, but only saw an empty hallway. There was no way she could cum in her pants, people would see the wet spot and know. And she obviously couldn’t just pull out and cum right here either. Just when all hope seemed lost, she spotted a locker with no lock on it. She ran up to the locker and quickly opened it.
Twilight thanked God that the hall was still empty and thanks to the locker itself she could hide under the slight veil of the locker door. After taking few glances to make sure no was coming she unfastened her pants and tore her dick free. Her cock throbbed hard as she felt her orgasm reaching its peak, and the moment her tip cleared her waistband a rope of cum shot high up to the back of the locker. She bit her lip, standing tensely as her balls unloaded into it. Twilight could tell by the sensations on her cock that her twin was cumming deep inside of Sunset, while she had to settle for an open locker.
After a couple moments of bliss. Twilight glanced down into the locker and could clearly see that it was in use. Her cumshot was landing onto a small bedazzled purse sitting atop some books. Her heart sank at the fact that she was cumming all over someone's stuff. She felt so bad for whoever these things belonged to and, despite the pure pleasure that coursed through her cock, she only wished it’d hurry up and prayed that no one would show up until she was finished.
"God damn those two!"
After about a minute. Twilight dick finally stop cumming. She quickly redress herself, before anyone could see. With her cock once again tuck away inside her pants. She gave one last solemn look at the inside of the locker. Everything inside was completely covered in her jizz, even the walls were painted white with her gooey spunk.
Twilight sigh. "I'm sorry!" She whispered.
Twilight close the locker and headed straight to the library. Dreading when the owner of the locker, opens it to find the surprise waiting for them.
******  
"RIIIINNNGGGG"
The bell for the end of lunch rang through out the school, as students began filling the halls and heading to their next class.
Twilight exited the library, not feeling particularly happy. The thought of the jizz filled locker, clouded her mind. She wince at the fact that her next class is in the same direction as the locker she blew her load in.
Not wanting to be late for class. Twilight began walking towards the direction of the locker, praying that the owner didn't need to visit it yet. Sure its not like everyyone knows she's a futanari. The only ones who do (apart from her family and of course her counterpart) are Rarity, Sunset, girls who seen her naked in the girls locker room, and Nurse Redheart. So its not like anyone's gonna think it was her, but that didn't make Twilight feel any better.
Twilight was getting close to her destination she just had to turn down the next hall and...
"EEEEKKKKKK"
Their it was. The loud shriek of the locker owner, finding the surprise Twilight unintentionally left for them. It was bound to happen sooner or later. Twilight wish for the latter.
As she turned down the hall where the commotion was coming from. Twilight could see a crowd of students looking back at where the scream was coming from. Wondering what happened. Twilight worked her way through the crowd. Giving a polite "excuse me," "pardon me" as she tried to get to class and just ignore this whole mess. Just as she was about to pass the by the locker, (which was surrounded by students blocking her view) Twilight suddenly stop when she heard an all to familiar voice, crying out.
"This horrid! Absolutely horrid!"
"Oh no!" Twilight thought, as her mind filled with dread and she felt her heart sink into a deep abyss.
"What on earth is this "white" stuff?"
"Oh no, no, no!"
"My word! Its everywhere! My books, (gasp!) My purse, my beautiful bedazzle purse. My sweet little sister made this for me as a birthday gift, and now its ruined....ruined. Ohhh what am I'm going to dooooo." The voice whine. "Out of all the worst possible things that could of happened. This is "the" worst possible thing."
In a panic. Twilight rush through the crowd to get to the source of the voice. Knowing exactly who it is that was crying, yet she prayed that It wasn't. After pushing her pushing her way pass the last barrier of bodies. Twilight saw her girlfriend staring disgustidly at the mess in her locker as the white liquid slowly poured out of it.
"RARITY!?"
The fashionista turned to see Twilight in the crowd, just before she walk up to her.
"Oh Twilight! Its horrible. Just look at what some ruffian did to my locker."
Twilight look at the mess she made earlier and felt both embarrass and disgusted at what she had done. At the time she didn't know it was Rarity's locker. Even when she saw the purse, she didn't bother to recognize it belonging to her. Her mind was only focusing on enjoying the pleasure of Sunset's tight pussy squeezing her cock through the other Twilight as they both came at the same time and once it was all over. The purse was covered in too much jizz to be recognizable.
As much as it pains her Twilight couldn't bare to tell Rarity the truth. Not just about the locker, but about her magical connection with Princess Twilight. She was too afraid at how her girlfriend would react to knowing that she is basically having sex with another girl and that she is doing the same with the other Twilight. Thanks to the shared sensations.
Deep down Twilight knew she'd going to have to be honest with Rarity and tell her truth, and at the rate Sunset and the Princess keep acting up. Its only a matter of time before the dressmaker start asking questions. But there's a time and a place for that and this is definitely not it. Twilight help escort Rarity to the Principals office to let her know what had happened while pretending to be ignorant as to not give herself away.
It turns out Rarity was moving to a new locker anyway. The one that is right next to Twilight's. It was supposed to be a surprise. She was going to move her stuff during her free period. Which was right after lunch. She took her lock off the locker before going to lunch just so she can grab her stuff and go, after.
Fortunately nothing too important was bathe in cum but now Rarity gonna have to get a couple of new texts books and Sweetie belle probably wouldn't mind making a new purse for her sister. But that doesn't make Twilight anymore less upset. After school today she plans on going straight to Sunset's house and giving her and The Princess a piece of her mind.
After dropping Rarity off in Celestia's office. Twilight was given a pass and was sent back to class. She was still upset for what she did but was more upset at Sunset and other Twilight for doing this to her in the first place. All Twilight could think about was why! WHY! were they doing this. They both know about the shared sensation, they know that its effecting her and making her cum with absolutely no way to stop it. So why are they doing it? Is this just some sick prank! Do they get off on trying to humiliate her in public. Those are the answers she seeks for when she confront the both of them later after school.
Twilight was just about to reach her class until.
"Oh no, no, no, NOT AGAIN!"
Twilight rush off to the nearest restroom, which was very close this time. Once inside she saw that the restroom she was in had only one stall at the end as the other two stalls and the toilets were gone.
This was because of an accidental explosion caused by Pinkie Pie and her exploding sprinkles a week ago. (don't ask:pinkiecrazy: https://static.fimfiction.net/images/emoticons/pinkiecrazy.png) Long story short. A cleaning crew came in and quickly clean up all the mess, cut the water off to where the first two toilets were, and rope off the area where the stalls once stood until new ones could be build, and since the third stall suffered no damage and neither did the sinks or mirrors. The restroom was left open for use.
The door to the only stall was closed but Twilight hope it was actually empty and the door was just position to look like it was. Twilight rush to the door and tried to push it open only to find out, it was indeed lock and someone was inside.
"Umm...occupied!"
Twilight didn't know what to do. She can feel her counterpart fucking Sunset's pussy, hard, slowly building up to an orgasm. She doesn't want to risk trying to make it to another restroom, she can't cum in her pants, or on the floor where someone might walk in on her.
With time running out. Twilight came up with what might be the most stupidest idea ever.
"Excuse me! Now I know this is really strange to ask but I'm desperate." Twilight knew this was a long shot but with her orgasm creeping closer and closer she didn't know what else to do. "Could you please let me in to use the toilet with you." Twilight wanted punch herself for even asking someone (who is not Rarity) for such a thing.
Their was a moments paused before the girl in the stall spoke.
"WHAT! are you insane! Why on earth would I do that!? Can't you just wait or better go to another restroom?"
Twilight can feel herself getting closer to the point of no return once again. She knows what she's asking is down right crazy but its either this or cumming on the floor. Which would probably get the girl attention to peek and see whats she's doing. Not to mention being caught by someone else coming in and if she could get away after leaving a huge puddle of cum stain on the floor; after her incident with Rarity's locker. Their would no doubt be witch hunt set up to track down the one responsible and Twilight can't take that risk.
"PLEASE!!!" Twilight says through strained breath as she hopelessly tries to hold back her climax. "I know what I'm asking is insane but I'm at the end of my rope. Theirs a problem with my body that I don't have time to explain right now and I don't have time to make it to another restroom without making a mess in the halls and probably get caught. Please help me? I'm begging you!"
The girl let out a deep sigh. "If I do this! How exactly are we gonna...do it?"
Twilight perk up from hearing that. "I'm a dick girl. If you can make room for me, I can aim myself at the opening." Twilight wasn't ashame at admitting she haves a penis. Dick girls aren't uncommon. Twilight seen other dick girls while changing and taking a shower in the girls locker room. Both here at CHS and at Crystal Prep.
All dick girls have a penis, a set balls, and a vagina, but because they are only part male and mostly female. They are still seen as females despite their extra parts.
Twlight heard a click. "Well! Come on then! Let's get this over with."
Twilight quickly push open the door and step inside, then closed and locked the door behind her.
It was a good thing these stalls were so spacious or it would be a tight fit for two people to be in at once.
After locking the door she turned around to see Octavia Melody sitting on the toilet and her panties down at her feet. Twilight couldn't help but blush a little. Despite seeing girls naked everyday after gym. This situation was just different.
Octavia grab the hem of her skirt and pull it further up her body not wanting Twilight to stain it. She removed one foot from her panties letting them hang off the other, she back herself as far as she could go, and spread her legs wide, giving Twilight more than enough of an opening to do her business.
Octavia noticed Twilight staring at her privates and rolled her eyes in annoyance. "I know I have an amazing pussy, Twilight but don't get the wrong idea. I'm only doing this to help you not soil yourself. So please just hurry up and get on with it."
Twilight was snap back to reality, not just by Octavia words but by the familiar shiver and twitched between her legs. With no more time to waste. Twilight quickly step closer to Octavia while unbuttoning her pants.
"hnngh! Theirs just ~mnhp~ one last thing I need to tell you. ~oh fuck~"
Octavia look at Twilight confused as to why she was making those kinds of noises. She watch as the girl before her drop her pants and pull down her panties. Letting her huge cock flop out directly in front of The Cellist face. Octavia stared cross eyed at huge pillar of flesh, amazed at how big it is.
"A-and whats that?" Octavia asked. Watching Twilight squat down some and point her now throbbing dick down at the toilet opening she made for her.
"I'm, I'm!" Before Twilight could even warn Octavia. She and the princess finally hit their peak. "I'M CUMMING!!!!"
"you're wh-"
Octavia was interrupted the second Twilight cock started to spurt rope after thick rope of spunk into the toilet.
Twilight made sure to not get any of her seed on Octavia as she rode out her orgasm in pure bliss. Moaning from the pleasure of Sunset squeezing the princess cock with her pussy while it was being filled to the brim with hot cum.
Octavia just stared as Twilight continues to cum only a few inches from her pussy. A lot of questions was swimming through Cellist head right now but the strong feeling of her bladder, begging for release was at the forefront of her mind. So with no shame she let herself go and began peeing as Twilight was still cumming.
The two girls blush a little at each other as they both watch the other do their business. After a good while Twilight finally stop cumming and Octavia finish her business soon after. Twi quickly redress herself once again. Stuffing her softening dick back in her panties and fastening her pants. All while Octavia took some toilet paper to wipe her pussy before dropping it in toilet and flushing their combined fluids down the drain.
Twilight soon open the door and step out. Fortunately, nobody came into the restroom during all that. She walked up to one of the sinks and began washing her hands. She was soon joined by Octavia after she put her panties back on.
"Thank you for your help Octavia and I'm sorry for...you know."
"Its quite alright Twilight! Wierd as it was I was happy to help. Although I do hope we keep this between us!?"
Twilight nodded. "Definitely! I really don't want this getting out. So lets just pretend this never happened?"
"Agreed!"
After washing and drying their hands. The two girls left the restroom and went their separate ways. Despite things going smoothly. Twilight was still piss at the situation. She got lucky once again but who knows when her luck will run out if she doesn't put a stop to this. That's why after school is over she heading straight to Sunsets house to put an end to this.
Hours later (and thankfully without anymore incidents) The final bell rung, and the students of CHS started walking home.
After kissing her girlfriend goodbye for now. Twilight angrily made her way to Sunsets house, all while trying to call her.
Hi this is Sunset Shimmer plea-*CLICK*
"Arrrrghhh!!!" Twilight was absolutely frustrated. That was the fourth time she called Sunset, and the bacon-hair girl still didn't pick up. "Damn it, Sunset!" She said pressing the call button again. "You're either in a position where you can't answer my calls or your just straight up ignoring me." Twilights thoughts was on the latter.
After a while of listening to the phone ringing 10 times. The voice mail start up again. Twilight just hit the end call button and put the phone in her pocket. She was almost to Sunset's home anyway. So she just continued angrily power walking her way there.
After about 15 minutes. Twilight made it to Sunset's two-storie house. She notice that her friend bike was not park in the driveway. Indicating that she might not be home or the bike is either in the back yard or the garage. Either way, Twilight believes she and her counterpart are home and their was only one way to find out.
Twilight walks up to the front and knock.
*BANG* *BANG* *BANG*
"SUNSET!!!! PRINCESS!!!!"
*BANG* *BANG* *BANG*
"OPEN UP! I KNOW YOU TWO ARE IN THERE!
She actually doesn't, but something was telling her that they are inside.
"YOU TWO HAVE BEEN ME CAUSING SOO MUCH TROUBLE." Twilight moved to window to window, along the front of the house trying to peek inside but her view was blocked by close curtains. She gives up and returned to front door.
"WHY ARE YOU TWO DOING THIS? Is this some kinda prank? CAUSE ITS NOT FUNNY ANYMORE!" Twilight starts pacing back and forth.
"I mean sure it was fun at first, when you guys took things slow, giving me time to get someplace private." Twilight stop her pacing. "But soon you two started fucking too fast and out of nowhere." Twilight hoped nobody heard her say that. "You guys have been making me cum with barely enough time to get somewhere private for weeks now. Are you two trying to humiliate me in public. Cause I had a lot of close calls." Twilight thought about the locker and Octavia. "How I didn't get made into a laughing stock by now is a mystery within itself. So I'm telling you two to stop this SHIT right now before you do."
*Ring* *Ring* *Ring*
Twilight quickly pulls out her cell phone and answers.
Where are you? You son of BITCH! We need talk about the trouble you been causing me RIGHT. NOW. And you better have a damn good reason or else I'll-
"Twilight!?"
Twilight instantly stop her rant, when she heard the voice on the phone and it made her wish she died in that moment.
"M-Mom!"
"And what was it you were planning to do to me for causing you so much trouble?"
Twilight shook her head frantically. "No no no! I wasn't talking about you. I was expecting a call from someone else."
"And who is it that got my little girl this riled up."
"Its not important. Its nothing."
"From what I heard it doesn't seem like nothing. Especially since it made you angry enough to swear. Which you only do when something or someone piss you off enough."
"Really mom, I'm fine! Can we just drop it?"
There was a long pause before Velvet spoke again.
"Alright dear if you say so. Anyway I'm calling to asked for a favor."
"And what's that?"
"I'm afraid to tell you now! It might caused you too much trouble and I don't wanna end up in a body bag."
"MOOOOM!"
"Hahaha, ok, ok! I'm sorry! I couldn't resist." Velvet clears her throat. "But for real now! I need you to head over to the grocery store on your way home and pick up a few things for tonight's "family dinner" I'll text you the list."
Twilight almost forgot about that. Tonight Shining Armor and Cadance are coming over to have dinner with the family and she promised to help her mom get things ready. It seems her beef with Sunset and the Princess will have to wait.
"Ok mom! Send me the list and I'll try get back home as fast as I can."
"Thanks dear! I'll see you when you get back. Bye!"
"Goodbye!"
Twilight hung up and put her phone back into her pocket. She turned to face Sunset's front door and glared at it.
"THIS ISN'T OVER YOU TWO! YOU HEAR ME! AND YOU BETTER STOP MESSING AROUND WITHOUT WARNING ME! OR ELSE!"
With that Twilight left and head off to the store. Unknown to her she was being watched as Sunset and Princess Twilight were carefully peaking out through window, watching the science nerd leave. Once she was out of site they closed the curtains and Sunset let out a laugh she'd been holding back since Twilight first came knocking on her door.
Sunset continued laughing as she made her way to her den and sat down on the couch. With princess Twilight soon joining her.
The Princess didn't laugh along with her marefriend as she felt guilty about the whole thing. When Sunset first pitch this idea to her. She was a bit unsure at first but loved how hot it sounded to surprise her human counterpart by not letting her know ahead of time that she and Sunset were about to fuck.
Things started out fine in the beginning and human Twilight didn't really complain at first. But that was back when they were playing it safe. Doing it at night when Sci-Twi was about to go to bed. When they started doing it while she was at school. They always started out slow giving Sci-Twi time to get to a restroom to relieve herself in private, before picking up the pace and thanks to Sunset's knowledge of Sci-Twi schedule and how punctual the science nerd is. They were able to use that to their advantage.
Sure their were some texts she sent complaining about it. But she never told them to stop. Which only made Sunset want to take things to a whole new level.
Now she wants the princess to fuck her fast and hard, and cum as quickly as possible. Which would give Sci-Twi hardly enough time to make it anywhere private. Sure they plan these attacks around her schedule. Knowing where she would be around that time but Pony Twilight still felt bad about it. After all it was like they were trying to humuliate human Twilight in front of others and despite knowing how wrong doing this to her was, she can't help but love doing it again and again. The situation was just too sexy. Not only that but she just can't resist wanting to fuck her super "HOT" marefriend.
But now it seems their little game is no longer any fun for Sci-Twi. Sunset ignored her calls and texts telling them to stop. Sunset even went as far to hide her bike in the garage. Knowing that the other Twilight was on her way here and told The Princess to stay quiet and pretend their not home.
When Sci-Twi did arrive. Banging on the door and yelling. Sunset was trying so hard not to laugh out loud. While Pony Twilight was sweating in fear and her mind filled with guilt. Sci-Twi never said what troubles they caused her apart from almost making her cum in public, but hearing how angry she was it must of been bad.
"Sunset! Don't you think we should stop this? It isn't funny anymore!" Twilight pleaded.
Sunset stops laughing. "Oh come on Twi! Lighten up. Its just a little prank."
Twilight glared at Sunset. "That earlier didn't sound like it was a little prank." Twilight gesture to the front door. "She was really angry Sunset and we don't even know what happened to make her this angry."
"Technically we do. We made her cum. We just don't know what she was doing at the time when she first felt me squeezing her cock through you."
"And thats an even greater problem. We may know her schedule but that doesn't mean we can assume she will always be in a position to go cum in private. Anything could happen! Principal Celestia could of called for school assembly or she couldn't make it to somewhere private in time, and judging by those texts she sent. She had many close calls, so we should quit while we're still ahead."
"I get what your saying, Twi, but do you really wanna stop this? It wouldn't be the first time in the past few weeks, you suggested we'd stop. Besides," sunset grin deviously. "You enjoy doing it as much as I do. If you really wanted to stop this you would of done so by now."
Twilight blush. "Your right! But I'm putting a stop to it from here on out." She firmly said. "No more sex without telling Sci-Twi first...or we could just do it back in Equestria more. We know for a fact that the connection doesn't work when we're in separate worlds."
"True! I don't mind either way. Pony, human it doesn't matter. It just you really love fucking in our human forms, that and you don't want to risk getting caught by Starlight and Spike......again."
"I thought they would be out of the castle for few hours!"
"Except you started fucking me before they got a chance to leave and judging how much harder you got when you noticed they were watching us, and how you didn't stop rutting me. Only shows how much of masochist you really are."
"....Oh! Right!"
"Face it Princess. Deep down you don't want this to end, at least not yet." Sunset twirls a finger in a lock of Twilight's hair. "as I said earlier you could of ended this long ago, but instead you chose to continue things." Sunset release Twilight's hair. "I thought you how to use a cellphone, and I never once tried to stop you from warning her. Yet you never even tried. The thought of surprising Sci-Twi and making her have sex with me through you, excites you too much. To the point that it became too...addictive and you love every minute of it."
"OK FINE! You're right! I do love it, and I hate myself for it." Twilight bows her head. "Even after her rampage earlier I still want to mess with her."
Sunset put on a seductive smirk and place a hand on Twilight lap, slowly sliding it up the girl skirt.
"Then how about we go another round."
Twilight tense up and quickly grab Sunset's hand, stopping it from reaching her groin.
"No Sunset! If we do that now. Then Sci-Twi will definitely know that we're here and probably come back and kick the door down this time." Twilight lets go of Sunset's hand. Allowing the fire haired teen to pull it away. "And I don't want to even imagine what she'll do to us." Twilight said, shaking in fear at her counterpart earlier threat.
Sunset scoffs. "Really Twi! You don't truly believe Sci-Twi will try to get vengeance on us? She's practicaly harmless. Sure she can get mad at someone but she'd never retaliate in a physical way."
"But that doesn't mean we should risk it!" Twilight sighed. "Lets just take a break from all this for while, and give other me some time to cool down."
Sunset nodded in agreement. "Deal! We'll have some more fun later tonight. We at least know she doesn't mind being surprised in the safety of her own home."
"That's true!"
Sunset gets up and head for the kitchen. "I'll start cooking up something for us to eat. Why don't you choose a movie or tv show for us to watch."
Twilight agreed and brought up setflix on Sunset's tv and browsed through the list of different shows and movies. While Sunset busied herself with cooking.
[Later that night, at Human Twilight's House]
Twilight was upstairs in her room getting dress for dinner with her family. She was still angry about what happened earlier today. Though she once again avoided complete public humiliation, she was still upset about ruining Rarity's purse and cumming in front of Octavia. She was happy that the Cellist agreed to keep what transpired a secret. It was easier with Nurse Redheart, because its part of her job, but with another student. Its good to know Octavia isn't that kind of person.
Twilight buttoned her blouse, she was all dress and finally ready for dinner. Cadance and Shining were joining them tonight and she was excited to catch up with them and couldn't wait until dinner was done, so everyone can have some fun together. Her moment of happiness soon interrupted by a familiar feeling. So she felt so miffed when she suddenly felt her twin’s activities ignite in her crotch.
“Not now....UGH...Damn those two!”
Twilight glanced down at the obvious tent in the cute skirt Cadance had helped her pick out. She sighed and sat on her bed, uncomfortably aware of the sensation of a mouth. This is the only time she wouldn't get angry at her friends surprise attack on her. Being at home make it easier to have privacy, allowing her to just sit back and enjoy the sensations to the fullest. But because Sunset and the princess normally take things slower when she's at home, Twilight doesn't know how long this would take but this time she needed to do something about it.
“I don’t have time for this you two…” Twilight groaned, quickly slipping back out of her skirt and removed her panties. “Sorry for ruining your fun (Not really) but I have to hurry this up.”
Twilight grabs her cock and began jerking off, gently squeezing her shaft and stroking it briskly. In addition to the magical sensation, she found that actual physical sensations made it more satisfying. With efforts from Sunset's blowjob and Twilight's handjob. It didn't take too long bring herself close to orgasm. She sighed with satisfaction and pumped her cock, happy that she'll be able to finish quickly this time. She grabbed a tissue from her nightstand and wadded it around her tip. Her legs tensed as she came, pumping cum into her tissue.
Twilight took a moment to enjoy the afterglow, as she kept stroking as she went soft. She walked across her room, idly sniffing her load before tossing it into the garbage.
Twilight smiled and got dressed again and went downstairs to go to dinner.
Meanwhile, Princess Twilight laced her fingers into Sunset’s hair as she sucked her cock.
“Mngh… Sunset! That’s so good!”
Sunset pulled away, stroking Twilight’s cock with her hand.
“Yea? You ready to fuck my pussy?”
Twilight glanced down at her cock with a blush. Sunset’s handjob was feeling unusually good and she realised why as her dick tingled with magic. Was this world’s Twilight masturbating?  Yes, yes she is.
“Yea, let’s hurry up!”
“Ooh, need it bad? Okay, I won’t keep you waiting.”
Twilight bit her lip, hoping her twin could hold off from cumming for a few minutes, but the feeling of her twin stroking her dick faster completely shot down that idea.
Sunset turned around and bent over in bed. She wiggled her ass, giggling when Twilight eagerly grabbed it. She felt Twilight’s tip rub against her inner lips then stop but not in a teasing way.
“Don’t hold back, Twi. Give me everything you’ve got.”
“Ngh! Oh no, no, no, no, no, no! I'm cumming!”
Sunset looked surprised when she heard that, even more when she suddenly felt Twilight’s cumshot strike her ass.
“What?” Sunset felt the second shot on her back, confirming it. “Well, uh- just put it inside. Quick.”
Sunset felt Twilight’s tip slip inside, wriggling her hips as the last of her cumshot released inside.
“I guess you really needed it, huh.”
“I’m sorry, Sunset.” Twilight sadly said. She then pulled her softening cock out of Sunset's pussy and sat down on edge of the bed. Sunset soon join her.
Sunset sighed. "Let me guess? Sci-Twi?"
Twilight nodded.
"She never tried to end things like this when she's at home. Which could only mean she must be doing something important and didn't have the time to wait on us to finish."
"That make sense. It could be related to that phone call she got earlier." Sunset shrugged. "Oh well it doesn't matter. What does matter is that she ruined our fun."
Twilight gave Sunset a look saying; you can't be serious. "Really Sunset? Don't you think that's a bit ha-"
Twilight was silenced by Sunset putting a finger on her mouth. "No I don't. You and I were having a wonderful moment and she'd gone and ruin it." Sunset put on a devious smirk. "Well two can play at that game."
Twilight gulped. She knew what Sunset was planning and knew that in the end she was going to go along with it no matter what.
[Meanwhile back at the Sparkles residence.]
Twilight was in the middle of having dinner with her family. Night Light, Twilight Velvet, Shining Armor, and Cadance were all there eating and conversating with one another.
"So Twilight how are things going on between you and Rarity?" Asked Cadance.
"Oh its been great." Twilight said cheerfully. "We love spending time together and despite how different we are, it never gets in the way in what matters most." Twilight takes a bite of her food and swallow before speaking. "Sure we're not perfect, we have our fights here and there." Twilight slumps a little in her chair feeling sad. "I hate it when we fight."
Cadance; who's sitting next to Twilight. Reach out with comforting hand to pat her sister-in-law shoulder. "Its ok Twilight! No couple is perfect! Even Shining and I have our arguments from time to time, even your parents."
Twilight look up at her parents, who nodded to her in confirmation. She then turned to face Cadance when she resumed speaking.
"What's important is that despite all your fighting, you two still love each other so deeply, and still want to be together, and that's proof on just how true your love with each other really is."
Twilight smiled. "Thanks Cadance!" She said and then took another bite of her meal.
Velvet spoked. "Ashame Rarity couldn't join us tonight."
"I know!" Twilight said dejectively. "She wanted to come but she was real busy putting a dress together for a very important client. She gives her regards though."
"Understandable!" Said Night light." Seeing that she's trying to reach her goal of being a world renowned fashion designer, she needs not let too many little distractions get in her way, besides its not like her work takes up all her time or else she wouldn't be able to hangout with you or the rest of your friends."
Shining spoke next. "How about we asked if she and her family would like to have dinner with us someday. According to Cadance; Twi and Rarity are definitely soulmates," Shining looks towards his sister with a cocky grin. "So we can expect to see them get married in the future and I would love to get know my future sister-in-law better."
Twilight cough and sputterd from her brother words while drinking her water. Which caused her family to laugh. Twilight place her glass down on the table, straighten her composer and glared at Shining.
"Its way too soon for us to be thinking about marriage, Shining!" Said Twilight.
"Yet its not too soon for the two you have a screaming contest in your bedroom and lord knows where else." Replied Velvet with a devilous grin.
Twilight face instantly turned red. "MOOOOOM" she shreik in embarrassment.
Everyone laughed.
"What! Its no big deal. Its not like she doesn't know that we-" Velvet was interrupted by her daughter sudden jump up in her chair as if someone snuck up on her and scared her.
Twilight let out of yelp as she felt a strong sensation between her legs, only thing is its not coming from her cock.
Oh no! Twilight thought as she tries to keep her composer in front of her family. What are those two doing? Since when did they start doing this all of a sudden? They never done this before. Twilight was feeling a whole new sensation coming from her counterpart. Instead of the familiar feeling of Sunset wrap around her cock, she could feel something slowly penatrating the other Twilight's pussy which in turn is allowing human Twilight to feel it.
It was no surprise that both Twilight's could feel other sensations from each other around the crotch area, they both had already tested that when they first experimented with their "Shared sensation." What is surprising to Twilight is the great change in roles. For so long it always been The Princess doing the fucking, so Twilight never expected that the two would switch roles. So now its Sunset doing the fucking, with a pretty big strap-on. Twilight could tell it was a strap-on cause she can also feel grip of someone hands holding her hips as the fake cock is being pushed more and more inside the tight depths of her counterpart.
Twilight let out small muffled groans as she felt more of the fake cock go deeper into The princess. She may only just be feeling the sensations, but it does feel like she really does have a cock going up her pussy, even though nothing is there.
Everyone else at the table was confused at Twilight sudden behavior, but were more worried because she looked like she was in pain.
"Twily! What's wrong? Are you ok?" Asked Shining worridly.
Twilight forced herself to look at her brother doing her best to keep her composer.
"I'm...F-f-f-fine ~mngh~ S-shining!"
"You don't look fine," said Cadance. "You look like you're in pain."
Not exactly. Though the feeling of being penatrated was a bit painful at first, it quickly became pleasureable not long after.
Of course Twilight didn't tell her family about the magical sensation, and she doesn't plan to, but one thing for certain she needed to leave and quickly head to her room before......
"Eeekkk"
Sunset shoves the entire fake phallous all the way inside. Which was exactly what just happened, and after a few moments of letting her marefriend get use to her girth, Sunset began fucking her hard and deep.
Twilight immediately shot up out her seat, her face fully red from embarrassment.
"Sorry! May I please be excused? Thanks!" Twilight quickly ran out of the kitchen, through the den, and up the stairs, before anyone had a chance to say anything.
Twilight enters her bed room and quickly closed the door behind her. Now alone she quickly takes off her skirt and soaking wet panties, letting them fall to the floor as she made her way to her bed, once their she sat on the side of the bed and spread her legs. Her cock was hard once again and her pussy was soaking wet.
Twilight couldn't help but moan as she felt her counterpart being fuck by Sunset's strap-on....that is if what she was feeling really is a strap-on.
The feeling of being penetrated was nothing new to Twilight, she'd been fuck by a strap-on many times before, but thing is the cock she was feeling felt hot, she could feel it pulsing, and its surface felt more like flesh (skin) and she also feel some warm liquid leaking rapidly from the tip. Twilight been fuck plenty of times to know the difference between a real dick and a fake one, and from her many experience with both, it was clear that the Princess was being rutted by a real dick.
[Meanwhile at Sunset's house]
In the bedroom, Princess Twilight was in the center of the bed, down on her hands and knees moaning like a whore as Sunset fuck her from behind with her large new dick that she grew after drinking a potion she got from Zecora back in Equestria.
The potion allow mares to grow their own cocks and a pair of large heavily filled balls, while still keeping their marehoods. The sperm can't get mares pregnant unless you drink the fertilizes version, but Sunset and Twilight aren't ready for kids, so of course they got the unfertilize version, and since (both) Twilight's can't get anyone pregnant at all, she can cum as much as she wants inside her marefriend.
This wouldn't be the first time Sunset fuck her Twilight like this, but it is the first time they did it in the human world. Even before they learned about the connection between both Twilight's. They always used the futa potion in Equestria, because they weren't sure if it was safe for the human body to consume at first, but with careful experimenting with lesser potions and working their way up, they soon found out that their was no danger at all and that it was ok to drink the potion even in human form.
The only reason they didn't use it until now was of course, when Sci-Twi told them about her magical problem, which the three soon discovered the shared sensation between the two parallel counterparts.
Sunset always planned on using her own cock in hers and Twilight's little game. She just love being fuck by her marefriend big cock a lot and love the thought of knowing that Sci-twi is practically fucking her through Twilight.
But now the wait is over and Sunset wants payback on Sci-Twi for ruining her fun earlier by surprising her in a way she would never see coming.
Sunset stood on her knees behind Twilight, holding on to her hips as she pounded her tight cunt with hard, rapid thrusts. Moaning in pleasure as her marefriend tight, wet, pussy squeezes her cock. Trying to milk the fire-hair teen of her hot, juicy, cum.
"Yeah....you like that baby?" Sunset said through panted breath. "How does feel being the one getting fuck? Hmm!"
" 'mmnnh' It feels soo good, 'ahh'"
"You like taking my cock don't you?"
"Yes! Yes! Oh sweet Celestia! Yes! I love it! Iove it sooo much." Twilight turns her head to look at her marefriend. "Please! fuck me harder! I'm about to cum!"
Sunset stops her thrusting and pulls out her cock, to Twilight's dismay.
"What are you doing?" Twilight whined. "Why did you stop?"
"I think thats enough payback for Sci-Twi interrupting our fun earlier. We can continue this later." Sunset said as she crawled off the bed and walked over to her dresser where she grab a bottled water sitting on top of it. Sunset open her bottle and took a few gulps from it.
Twilight sat up on her knees and turned to face her marefriend and glared at her.
"Celestia damn it, Sunset! I know what your trying to do!"
Sunset cock her head to the side and raised an eyebrow. "Whatever do you mean Twi?" She said. Clearly trying to sound innocent.
"You're just trying to tease me and get me to beg you to fuck me. You do this every time when I say we should stop surprising other me. You just want me to admit that I enjoy surprising her just as much as you! Making everything I said before mean absolute dog shit."
Sunset gasped in clearly faked surprise and shock. "Twilight!? How could you ever think I would do such a thing. I'm hurt."
Twilight just rolled her eyes. She'd been dating Sunset long enough to know her tricks as well as know exactly what she wanted her to do. So instead of arguing with her. Twilight just sucks it up and give her sexy marefriend what she wanted. So she in turn gets what she wanted.
Twilight laid back, keeping herself up on her hands and feet, looking like she's about to do the crab walk. But instead started thrusting her hips up and down, making her cock flop back and forth with each thrust. She kept on doing this erotic action while she speaks.
"You want me to beg? Fine I'll beg! I want your cock Sunset! No! I need it! I need you inside me!, I need you to fuck me!, I need you to cum in me!" Twilight let her hips fall, as she sat at the edge of the bed, legs spread wide. She grab her dick with one hand and grope her pussy with the other. She then proceeded to jerk herself off while fingering her cunt. All while she stared into Sunsets eyes as she stood there with a smug grin on her face, clearly enjoying the princess perverted show.
"I don't care what the other me is doing right now, I want her to feel what I'm feeling, I want her to be fuck by you through me." Twilight continues to play with herself as she admits her true feelings. Her dick growing harder and her pussy getting wetter at the thought of Sci-Twi getting fuck by Sunset thanks to the shared sensations between them.
Twilight made sure that the pleasure from her own hands didn't get her off. If she was going to cum, she wanted Sunset to be the one to make her.
"I-I Love it when we surprise her, I love the thrill of putting her at risk! I know I said we should stop, but truth is I don't want to." Twilight stop her masturbating and with one hand lift her balls up to show Sunset her soaking wet pussy. "So please Sunset! Come fuck me and fuck her! Make us both feel your hard dick inside us, make us feel your hot seed shoot in us. I promise I from here on out I won't asked for us to stop surprising her anymore. Just please fuck me Sunset! I NEED IT! PLEEEEAAAAASSSSSEEEEE!"
Sunset place her water bottle back on the dresser and began walking towards her needy marefriend.
"Ok! Ok! I hear you, geeze!" Sunset stop right between Twilight legs and lined her cock up with her pussy. Fortunately the bed was the perfect height to make things easier.
Sunset prob the entrance of Twilight's slit as she leaned forward to kiss Twilight and push her down onto her back. As they were making out Sunset didn't want to keep her lover waiting any longer and she didn't want to wait either. So with one hard thrust she buried her cock deep into Twilight snatch. They both broke the kiss as they moan from pleasure. Sunset didn't hesitate to start pounding Twilight as she got up on the bed and started fucking her in a missionary position.
Twilight hug Sunset close with both her arms and legs. Moaning in pleasure as the love of her life fuck her.
[Sci-Twi house, minutes earlier]
Twilight laid there on her bed, her legs hanging off the side. Feeling Sunset fucking her through the princess. She uses one her pillows to cover her mouth in order to muffle her moans.
"mmhhpp, Danm those two!" Twilight thought. "Since when did they started changing roles, ahhhh!"
Twilight could easily guess that the only reason they'd decided to pull this little trick of theirs out, was to get back at her for ending things quickly earlier and it angerd her to no end. She hope a day would come when she will get a chance to reap her vengeance.
Twilight knew their was nothing she could do to try and end this faster. Sure she could get both herself and the princess to cum like she did before, but since Sunset's the one doing the pounding it wouldn't matter. All she could do is lay there and take it. Praying that they would just hurry up and finish so she can return to her family before they get too worried.
Twilight could feel herself getting close to cumming, but before she could reach her peak the sensation suddenly stop.
"Huh!?" Twilight toss the pillow aside and sat up. "They stop!? Why did they stop?" Twilight was disappointed and happy at the same time. On one hand she really didn't like being blue balled like that, but on the other. If they are done then she could get redress and hurry back downstairs. "Well if their done messing with me I might as well head on back before-" as she was talking Twilight stood up and walk over to where she drop her skirt and panties. She was just about to pick them up when she was hit with a sudden sensation coming from both her dick and her pussy a once. "eepp! Of course it was too good to be true. Nggghh, Damn them! Ahh!" Twilight stumbled backwards into her bed and sat on its edge, with legs spread apart once again.
It wasn't hard to tell that the princess was masturbating. It made sense because of Sunset pulling out earlier. So the princess must be begging for the bacon-hair girl to continue fucking her. Which was not good. Twilight didn't have time to just sit there and wait for them to finish. She needed to get back to her family before......
Knock knock knock
"Twilight!"
Oh no!
"Twilight! Are you ok in there?"
"I'm ~mmph~ fine, Cadance ~nngh~"
"You don't sound fine! Do you need any help? Everyone getting worried!"
"No no! I swear Cadance! I'm fi- ahhhh!" It was in that moment Twilight felt Sunset slam her cock deep inside the princess making the science nerd moan out loud. She tried to cover her mouth quickly to muffle it but it was too late to stop Cadance from hearing the first cries of pleasure after the sudden penetration.
All though her mouth was covered with her hand. Her moans of pleasure were still loud enough for Cadance to hear. All thanks to Sunset pounding the princess pussy real hard.
Mmph nnghh mnnpphh
Cadance could hear the noise Twilight was making from the other side of the door and instantly she grew worried that something was terribly wrong with her sister-in-law.
"Twilight! I'm coming in!"
Hearing that made Twilight eyes bulge. She realized that she didn't lock the door earlier. So seeing the door knob turn all the way and the door opening filled her both fear and even more arosual. Twilight didn't try to cover herself or hide her shame. It would be pointless to try anyway, and besides it wouldn't the first time Cadance saw her naked lower half and it sure wouldn't be the last. So She just sat there legs spread wide and with her other hand, grab her cock and started slowly stroking it, being careful not to make herself cum just yet.
When Cadance open the door she was shocked at what she saw. Twilight sitting on the bed jerking off while trying to muffle her moans with her other hand. Cadance just stood there staring at her sister while she continued to masturbate in front of her. Not even trying to hide herself. After a few moments Cadance crossed her arms, closed her eyes, and shook her head in disappointment before looking back at the perverted teenager.
"Wow Twilight! You couldn't have waited until after we were done eating first!" Cadance said disappointedly. She then took a few steps into the room before stopping to stand directly in front of the little pervert. "You never been impatient before, so what gives? Its not like you and Rarity don't have a strong ongoing sex life and I know your parents fuck you every now and then. So its weird to see you this work up." Cadance look into Twilight eyes with concern. "So what's wrong?"
***  
Like Rarity; Twilight never told her family about the connection between her and the princess. With her girlfriend it was about not wanting her to think she was betraying her. Sure the two of them have an open relationship. Inviting other girls to have sex with them, but they always discuss these things with each other first, never going behind the others back to have sex with someone else. The two of them were always honest with each other and very understanding. Twilight couldn't asked for a better girlfriend than Rarity. Which only made her feel stupid for doubting her.
Why wouldn't she understand. If Twilight just explain to her the situation everything would be fine. Just like when she told Rarity about her incestual relationship with her family a few months back.
It would be the fifth time Rarity was invited to one of the Sparkles Family Dinners. Rarity had many opportunities to get to know her family; either with their friends or by herself. So they were far from strangers.
These Dinners would always end with everyone having sex with each other. Its been like that for years. Of course when Rarity came to these dinners. They had to wait for her to leave, but after getting to know her so well and she felt like part of the family. Night Light and Velvet asked Twilight to tell Rarity about their secret relationship and invite her to join in if she wants.
Twilight always wanted to tell Rarity the truth about her sexual relationship with her family. After all the two of them are always honest with each other. She was just afraid that Rarity wouldn't approve and break up with her. But Cadance assured Twilight that she had nothing to fear. Those words coming from the love expert herself meant a lot to Twilight.
So after dinner Twilight took Rarity to her room so they could speak in private. It took a lot of courage but Twilight told her girlfriend everything about her incestual relationship. After she was finish she was still afraid that Rarity would find her disgusting and storm out of the house only for Rarity to calm her down by kissing Twilight on the cheek and telling her that she understands and is not in anyway against her and her family having sex with one another.
As it turns out Rarity haves a similar relationship with her parents and she to was afraid of telling Twilight the truth, but hope to do so someday so she can invite her to have fun with her family. Of course such things are kept a secret from Sweetie Belle, but once she turns 18 too, she to will be able to join the fun.
Soon both girls left the bedroom hand in hand as they headed down stairs for a long night of fun.  
***
Twilight removed the hand covering her mouth. She was able to get use to Sunset's constants thrusting just enough to speak clearly. Weeks of multiple surprise attacks from the those two gave her all the practice she needed, and it was a good thing she can only feel the sensations of the pounding Sunset is giving her marefriend, and not actually being push back and forward by the impacts of her friends hips. "I'm sorry! I got excited when everyone was talking about Rarity earlier." She lied. Hoping Cadance would believe it......She didn't.
"Twilight you're a terrible liar." Cadance said unconvince. "Thiers clearly something you trying to avoid telling me." Twilight winced at that. Cadance sat down on the bed next to the bottomless teen, who was still jerking herself off, but Cadance wasn't bothered by it. She placed a comforting hand on Twilight shoulder and spoke. "You know you can tell me anything right, I'm always their to lend an ear if you need it. So please tell me what's wrong."
Cadance was right. She'd always been there for Twilight whenever she had problems. But how could she tell her about this. As much as Twilight didn't want to she thought it would be best to just come clean and tell her the truth, besides this would make good practice for when she tell Rarity the truth as well. But that will take to long to explain now and they both needed to get back downstairs.
"It's a long story and I don't want to waste time telling it now. Twilight let out a deep sigh. "But I will talk about it, when we get back to the others, I don't wanna worry them anymore than I already have."
Cadance smiled. "Then let's head on back." Cadance stood up to head to the door, but before she could take a single step, Twilight grab her hand. Cadance turned her attention back to the science nerd.
"Before we go can you suck me off real quick? I promise to explain why. It's all connected to what I will say later. I just really need to cum right now."
Cadance shrugs, not even bothering to asked questions. "Alright!" Cadance got down her knees between Twilights spread legs and grab her cock. "Just make sure you shoot it all in my mouth, I don't wanna get any on my clothes.....yet!" Twilight nodded and with that Cadance took the teenager cock in her mouth and started sucking her off.
As Twilight theorize. The new added stimulation caused the princess to tighten up her vaginal walls around Sunset's cock even harder. Fortunately it seemed Sunst was already close to cumming, cause not long after that, Twilight could feel the heat of the bacon-haired teen climax as she camed real hard inside the princess, which in turn made her cum and made Twilight cum at the exact same time. Filling Cadance mouth with her spunk as she swallowed her load.
After a few moments it was over. Twilight felt Sunset pull out of her counterpart. No doubt she was finally done fucking for awhile. Cadance pull off Twilight's dick and swallowed the last of her load. Soon Twilight got redress and the two sister-in-laws headed back downstairs to rejoin the others.
As they walked back to the kitchen, Twilight couldn't help but think about how she really wants to get payback on those two, she hoped that someday she'll get her chance.