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Mistress Hospital	By : SapphicRobot Category: G through L > Grey's Anatomy Views: 19446 -:- Recommendations : 0 -:- Currently Reading : 0
Disclaimer: I do not own the Grey's Anatomy fandom, nor any of its characters, nor do I profit from this fanfic.

Chapter List
- 1-Mistress Hospital
- 2-Girl's Night In
- 1
- 2
Mistress Hospital
Chapter 1: Pick Me, Choose Me, Love Me
By: SapphicRobot
Codes: Femdom, F/F, Fingering, Inc, Oral, Rim
Description: Lexie makes attempt after attempt to get to know Meredith, and Meredith can't take it anymore. In an attempt to scare her away, Meredith learns JUST what Lexie is willing to put herself through if it'll make her new found half-sister love her.

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"Sometimes in life, in relationships, in your careers, you will encounter hardships," said Dr. Webber, in the middle of an inspirational speech to his staff, "And when you encounter these hardships, you will stop, and you will ask yourself, 'Do the rewards outweigh the risks? Is this really worth it? Is this what's best for me?' Now, I truly believe in all of you, and if you answer those questions to yourself honestly, you will make the right decisions. Now get out there and be the best damn doctors you can be!" With that, the doctors, nurses, and interns went their separate ways to get back to work.
"Meredith. Meredith! Meredith!!!" exclaimed Lexie, quickly trying to catch up with her half-sister Meredith Grey, whose speed was picking up with each sound of her name. Lexie had been working at Seattle Grace Hospital long enough that Meredith knew simply ignoring her wasn't going to be enough, and with that, she let out a deep sigh.
"What is it, Lexie?" Meredith said, clearly annoyed already, and the day had only just begun.
"Well, I noticed we both get off at the same time today, and I was wondering what your schedule was like after work?" said Lexie.
"Aww, look at that, all booked up!" explained Meredith glancing down at the blank clipboard gripped tightly in her arms for all of an entire second.
"Oh, umm, ok. Well, I'm off Tuesday and Thursday, which works better for you?" asked Lexie, being either very naive or very persistent at this point.
"Neither!" said Meredith, growing more frustrated with the chipper little runt following her. Meredith pushed through the door to the hospital locker room to fetch something from her locker and Lexie wasn't but two steps behind.
"Really? 'Cause you didn't even look at your clipboard that time. And, actually, I can kinda see the clipboard, it doesn't look like there's anything on it. So, maybe you are free!" Lexie smiled, as if she had just helped a teacher solve a difficult math problem.
"Lexie!" shouted Meredith with a small echo in the empty locker room, stopping in front of her locker. "Look, I'm not free tomorrow, I'm not free next month, I'm not free in ten years, and I will NEVER be free for you! What don't you fucking get about that?" She had lost her cool at this point and it was only going to get worse.
"Well, I just thought that--" started Lexie before being rudely interrupted as her half-sister shoved her against the cold, metallic lockers forcefully with her forearm.
"You thought that what? That after 24 years of not knowing each other existed, that we'd go catch a chick flick, share boy stories and have a sleepover? That we'd just magically be sisters and love each other? Grow the fuck up, Lexie!" Meredith continued to yell. Meredith stared into Lexie's saddened hazel eyes and released her.
As she fought the urge to cry, Lexie built up the courage to talk back. "N-no! I just thought we could build our relationship! Make up for lost time! Earn that love! I want you to love me, Meredith!"
Meredith was so worked up that she forgot what she was even looking for in her locker. "You just don't fucking get it! You're so dense! You want me to love you so bad, that I just had you shoved against some lockers, and you're STILL trying to make 'us' work!" she snapped back after slamming her locker shut. She threw down the clipboard on the tiled floor and added "Well, fine. You wanna earn my love? You're gonna fucking earn it!"
As Meredith angrily stormed forward, Lexie instinctively knew to follow her, scared by this side of her half-sister. Meredith started untying her scrubs that were snug against her waist as she walked. Upon reaching the wooden bench, she turned to face it while sliding her thumbs into the elastic waist bands of her scrubs and panties. Pulling them down to her ankles in one swift motion, revealing her bare bottom and bending over, she exclaimed, "Lick my asshole!"
Lexie stood behind her, taken aback by what just happened. She stared in a daze at her half-sister's tight, round butt cheeks. "You...you want me to do what?" she said, face full of shock.
"Lick. My. Asshole," Meredith said a little more calmly, enunciating each word, but with more ferocity in her voice. She grasped her butt cheeks and spread them wide, showing off her puckered asshole.
"Meredith, I, um, I-I'm not--" stuttered Lexie, unable to look away from the spread butthole between her sister's cheeks, and blooming pussy lips peeking out between her thighs.
"So help me, God, Lexie! Either you get down on your FUCKING knees, RIGHT NOW, and lick my FUCKING asshole, or you leave this room and NEVER talk to me agai--" Meredith was cut off as she felt a pair of soft hands grasp her thighs and a wet tongue slide over her butthole. She felt both shocked and awoken by the sensation. "What am I doing? What the FUCK am I doing?!? This isn't me!" Meredith thought to herself. She genuinely wondered where this demented side of her came from and wanted to stop, but realized she was in too deep already, and had to quickly maintain control of the situation.
"Uh, yeah, er, just like that!" she commanded, "I didn't say stop!" With that, she felt more slow licks from top to bottom of her asshole. She took her hands off her butt and placed them on the wooden bench in front of her, attempting to get better footing. "Now, uh, grab my ass! And lick faster!" added Meredith. Lexie slid her hands up Meredith's thighs to her beautiful ass and squeezed each cheek firmly, separating them again and picking up the speed of her licks.
Meredith bit her lower lip as waves of pleasure started to hit her like a freight train. She had no experience with assplay before, and was really starting to like it. Starting to look back to watch the show, Meredith realized her face was expressing pleasure and curiosity, two emotions she had to guard right now. Quickly, her face turned to almost a disgusted scowl.
As she felt her half-sister move, Lexie opened her eyes for the first time since she had begun. Seeing Meredith's look of disapproval, Lexie immediately lapped longer, swifter licks. Between the direct pleasure to her anus and the sense of power she'd never felt before, Meredith was growing quite horny. Her curiosity made her start to engulf herself in the power a bit more, and wonder just what she could get her half-sister to do.
"Do you like licking my asshole?" Meredith asked turning her head back to her sister again.
Lexie pulled away to answer, "Yes" But "yes" wasn't a good enough answer for the recently power-hungry Meredith, no, no, she needed more. She needed Lexie to know her role in what was happening. But "yes" wasn't even an honest answer from Lexie. She didn't know how she felt because she didn't feel anything. She felt numb and zombified, but knew "yes" was the answer her sister wanted to hear.
"You will respond to me as 'Mistress' from now on, do you understand?" Meredith asked harshly.
"Yes," said Lexie staring back at her 'Mistress' with a look of confusion, fear, and somehow, still a look of love.
"Yes what?" Meredith smirked.
"Yes Mistress!" Lexie responded, upset she made a mistake already.
"Good girl. Now, my ass is feeling PRETTY unlicked, so I tell ya what, you bury that tongue of yours deep into my ass and I'll call it even for not calling me 'Mistress' just now, understood?" said Meredith.
"Yes Mistress!" Lexie said immediately, quickly lunging forward, poking her half-sister's butthole and suddenly piercing it with her tongue.
"Ooo, come on, Lexie, you can go deeper than that! You're barely trying!" she said, gyrating her hips at Lexie in a taunting manner. "Come on now! You wouldn't want to upset your mistress! Deeper! Deeper!! DEEPER!!!" Lexie plunged her tongue further up Meredith's ass each time up until she literally couldn't anymore. Her lips were sealed hard around Meredith's asshole and her chin was pressing up against her taint. "OH yeah! There it is! Now thrust that tongue! Eat my ass! Eat my fucking ass!!" Meredith chuckled darkly, grinding her hips like waves of the ocean. This was unbelievable. She didn't know if she just liked anal pleasure, or if she liked having such control over someone else, but Meredith was feeling insatiable. Her pussy was sopping wet and some of her juices had even began running down her thighs a little at this point. While the anal pleasure was amazing, and rest assured, Lexie was giving it her all, Meredith needed more.
"Stop! Pull your tongue out of my ass!" demanded Meredith. Lexie was wiggling her tongue around and thrusting it in and out with such force, it was like she was in an ice cream cone eating contest. Upon hearing her latest command, she pulled back, taking deep breaths in while wiping the wet circle of saliva surrounding her mouth. She couldn't help but notice the glistening asshole before her, a little bigger in diameter than before, and feel a little pride in her work. "Take your right hand and put it on my inner left ankle," said Meredith. Lexie did as she was told, but couldn't help but wonder where this was going. "Good. Now I want you to close your eyes and slowly rub your hand up my leg until you reach the top, and I want you to describe the experience for me as you go, understood?"
"Yes, Mistress!" Lexie responded quickly. "Umm, I'm sliding up your lower leg. It feels smooth and warm, Mistress. M-My hand is r-running over your thigh and it's starting to feel warmer, Mistress. The, uh, the middle of your thigh is starting to feel wet and sticky, like a thin syrup, Mistress."
"Quit stuttering! More!" Meredith exclaimed.
"Yes, Mistress!" Lexie chimed with conviction, "My hand is at the top of your thigh now, gripping it, wet and sticky, Mistress!"
"Mmm, now follow it along and cup my pussy!" the mistress shouted with power. Lexie wearily followed Meredith's thigh along until she felt her palm over wet, very wet, pussy lips. She cupped her half-sister's pussy as she was told, her finger tips resting against her clit, and her wrist pressed against Meredith's taint. "Good girl! Now I want you to pretend that your palm is an eraser, and my pussy needs to be erased. Badly!"
No further words were needed from the one in charge. "Yes, Mistress!" Lexie responded, obediently rubbing Meredith's pussy. Meredith's pussy juices were saturating Lexie's palm. She began bucking her hips against Lexie's palm trying to create as much friction as possible on her clit and lips.
"Come on! You can do better than that! FASTER!!" Meredith commanded. Lexie's efforts increased ten fold and she didn't know how she could possibly move her hand any faster. Meredith knew Lexie was feeling her pleasure and didn't see a reason to try to stop her from hearing it anymore. She began letting out some soft gasps and moans while her half-sister rubbed that twat like a mix master DJ. Meredith knew she wanted to cum at this point, but the excessive rubbing just wasn't enough. No, the greed and desire for more power that continued to grow inside her made her HAVE to have more. "Tell your mistress you like rubbing her perfect pussy!" she yelled.
"I like rubbing your pussy, Mistress!"
"Thank your mistress for the opportunity to rub such an elegant pussy!"
"Thank you for the opportunity to rub such an elegant pussy, Mistress!"
"Now tell your mistress you wanna eat her pussy!"
"I wanna eat your pussy, Mistress!"
"You can do better than that! Say it like you mean it! Say, 'I wanna eat my sister's pussy!'"
"I wanna eat my sister's pussy, Mistress!!"
"LOUDER!"
"I WANNA EAT MY SISTER'S PUSSY, MISTRESS!!!"
And after hearing it with such conviction, Meredith knew that whether Lexie honestly felt that way or not, her mind was starting to MAKE her feel that way. "Good girl!" she said standing up and turning around. After stepping out of her scrubs and panties, she sat down on the bench and spread her legs. She reached forth and grabbed her sister's chin, as Lexie gazed hypnotically at the dripping, wet pussy in front of her. "Now. Let's put that talented tongue to use!"
"Yes, Mistress!" said Lexie switching her gaze to Meredith's eyes, before looking back at her pussy and lunging for it. Within seconds her hands were gripping her sister's lower thighs and hungrily began lapping up the juice covering her upper thighs.
Meredith bit her lower lip and smiled before running a hand through Lexie's hair and tugging it upward forcefully, and bringing her face to face. She grabbed Lexie's hand and put down all of her fingers but her pointer and middle. Jerking her wrist forward, she took her sister's two fingers and plunged them up her warm opening. "Listen, I appreciate the little foreplay you were just trying, and under any other circumstances, I would love foreplay! But foreplay is for warming the oven! Now you tell me, does THAT--" Meredith said tightening her pussy walls forcefully against her sister's fingers, "feel like an oven that needs warming?"
"No, t-that's a pretty warm oven, Mistress!" Lexie said feeling the warm, wet pussy tighten around her fingers.
"Glad we're on the same page. Now GET IN THERE!" Meredith screamed jerking her sister by the hair again and bringing her back down to the level of her pussy. Lexie stuck her tongue forward and began flicking Meredith's clit with it while she swiftly thrust her fingers in and out of the opening. Mixing in a few long swipes with quick, short ones, Lexie was pleasuring Meredith's clit immensely. "Mmmmm, that's a good girl! I knew I didn't have to tell you twice! Keep going!" Meredith commanded, running her fingers through her sister's soft hair.
"Yes, Mistress!" Lexie responded. She pulled her fingers out and immediately wrapped her lips around the labia in front of her, and darted her tongue in.
"Oh fuck! Fuck yeah! Just like that!" Meredith shouted, beginning to grind her crotch against Lexie's face while petting her head. She was getting close. So close. Just a little more. Lexie did whatever she could with her tongue to try and please Meredith. She curled it, hardened it, softened it, twirled it around, the works. As she got closer to orgasm, Meredith also got louder and more expressive. "Mmmm, god damn it! Now, uh, OH--" she was cut off mid sentence as her g-spot was massaged, "Don't take your tongue out, just nod, but *gasp* do you like *gasp* do you like eating pussy?"
Lexie nodded her head up and down while continuing to go down on Meredith with 110%. "Good girl! Do you *gasp* Do you like eating your sister's pussy?"
Lexie nodded again, as Meredith's gasps, moans, and pants were becoming more apparent. Meredith began to notice not so much what she was saying, but how she was saying it, and that she was losing control of the situation. Right now, Meredith wasn't in charge of Lexie, Lexie was in control of her. Meredith didn't just WANT that orgasm, she NEEDED this orgasm. But she had to regain control.
She composed herself to the best of her ability and shouted, "Mmmm, good girl! Good little girl! Harder! Faster! Now take those fingers and shove 'em up my ass! Finger fuck your mistress's ass! Yes! YES! Just like that! Don't stop! Don't you dare fucking stop!" Every inch of Lexie's fingers were still lubed up from Meredith's pussy and had already slid into her ass with ease. She thrust them in and out as hard, and as fast as she could, while her tongue was as deep in Meredith's vagina as it could go, moving at lightning speed.
Meredith couldn't take it anymore. The fingers, the tongue, the power, it was all too much. She was at maximum capacity. Her hands slid to the back of Lexie's head and held her air tight against her pussy, while her legs came in from spread eagle, to wrap around Lexie's head. Her thighs like a vice grip, her pussy getting pleasured beyond belief, her ass getting finger fucked, her entire body practically convulsing, she lost it. "Oh shit! SHIT! HOLY SHIT! I'm cumming! I'm fucking cumming!!! AAAAAAHHHHHHH!!!!" she screamed out in pure ecstasy. Her pussy walls clung tightly to the talented tongue inside them, her thighs squeezed a little harder, and most importantly she came. She came hard. Like a dam breaking, her sweet nectar filled Lexie's mouth almost instantly. Lexie tried to swallow what she could, as fast as she could. Unfortunately, she couldn't keep up. She started choking a little, and the harder she pushed against Meredith's thighs to come up for air, the harder Meredith pressed into the back of her head while her orgasm continued.
Eventually, the cum slowed and the orgasm subsided. Meredith had just experienced an amazing orgasm. She let Lexie up for air, but not so she could breathe, but instead, so she could maintain control. She waited until her body stopped shaking and she could control herself. "Good girl, good girl! Did you like pleasuring your mistress? Does it feel good to pleasure your mistress?" she asked looking down upon Lexie.
"Yes, I--" Lexie stopped to cough up some of Meredith's cum that had gone down the wrong pipe, "I liked pleasuring you, Mistress!" Lexie began to wipe the girl cum from around her mouth and chin, and even the bit that had began running down her neck.
"Mmm, tell me you liked eating your sister's cunt!"
"I liked eating my sister's cunt, Mistress!"
"LOUDER!!"
"I LIKED EATING MY SISTER'S CUNT, MISTRESS!!"
"Mmm, that's a good girl," Meredith said squishing her sister's cheeks together causing her lips to purse, "now clean your mistress's thighs and pussy, they're COVERED in cum!" Without hesitation, Lexie leant forward and furiously lapped every inch of Meredith's smooth thighs, bald cunt, and even lifted her a little to make sure her taint had no remnants of cum. As soon as this was complete, Meredith stood up and grabbed her panties and scrubs. "Clean yourself up, you're a mess! And afterwards, give me your panties!" she added while getting dressed.
"My...my panties?" Lexie questioned before licking the cum from between her fingers.
"Yes, your panties," Meredith replied as-a-matter-of-factly. Completely dressed as if it had never happened, she came back over and jerked Lexie by the hair again, "and YOU didn't say MISTRESS!"
"I-I'm sorry! I t-thought we were done, Mistress!" Lexie said, hands and face finally free of cum.
"Hmmph," Meredith responded, letting go, "you're lucky we ARE done. Now, give me those panties!"
Instead of continuing to question the logic of if they were truly done or not, Lexie figured it best just to do as she was told. She stood up and quickly untied and removed her scrubs. Pulling them over her shoes was a task, but she figured it wouldn't take as long as taking the shoes off too. Meredith watched with admiration as Lexie effectively stripped for her. Staring at her smackable ass, barely covered by a red thong (soon to be off), Meredith bit her bottom lip again, knowing she wanted more. But not today. It was too risky. They had already been in here uninterrupted for God knows how long, and couldn't spare another minute. Lexie took off her thong, revealing her sweet ass in all it's glory, along with her adorable little pussy, adorned with a tiny Brazilian wax on top. Upon handing the thong to Meredith, Lexie started getting while Meredith inspected it. "These are sopping wet! You really DID enjoy that, didn't you??" Meredith asked with eyes wide open. Before Lexie could say anything, Meredith chimed in. "You know what? I guess you don't have to answer that, since we're done."
"Meredith, umm, so what happens now?" Lexie asked as she put a leg into her scrubs. Meredith was unresponsive, in a world of her own it seemed, as she sniffed her sister's panties deeply and smiled. "Like, what does this mean for our relationship?" Lexie added. Still, Meredith was unresponsive. She had come back to the real world and walked back to her locker. Opening it, she stuffed the wet thong into her purse. "Ok...umm, Meredith, you started referring to us as 'sisters' during that. Not 'half-sisters', 'sisters'. Does that mean you're starting to accept me?" Lexie continued to ask questions as she finished getting dressed. Meredith closed her locker and picked up her clipboard, still not saying a word. "Fine. But answer one thing. Who or what made you like that? I haven't known you long, but I think I know you well enough to know that that's not the real you. Somebody or something gave you that dark side!" Lexie explained, getting more frustrated at her sister's silence. Meredith just began walking towards the door. "Meredith! MEREDITH! Why were you like that!?!"

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Chapter 1 Epilogue
Later that night:
"Oh. Oh! Oh!! Oh!!! Ooooooh!!! OOOOOOOOOH!! Mmm, right there! Don't stop! I'm gonna cum! Almost!! Yes! YES! AAAAAAAAAAAAAAAHHHHHHHHHH!!!!!" Izzie screamed out, clenching the bedsheets so tight that her nails dug into the bedspread. Her large, natural breasts lying freely topped with very erect pink nipples. Her creamy, curvy body was hidden under the covers from the hips down. And also hidden under those covers was the outline of a body, with a head very clearly pleasuring Ms. Stevens. "Mmm, that's good. You're all done. Come up and french your mistress, so she can get a taste," Izzie said seductively.
Out from the covers came none other than Meredith Grey. She slid her naked, sweaty body all the way up Izzie's until their curves aligned. Bountiful breasts touching one another, wet pussies meshing, and eventually tongues dancing together beautifully. Izzie slurped down her own juices and turned Meredith onto her back, while lying next to her on her side. She slid her hand down Meredith's slender body, past her toned naval, until she reached her pussy. Then, Izzie forcefully pinched Meredith's pussy lips together, as if she was holding its mouth shut. "Now, remind your mistress whose pussy this is?" she said wiggling it between her finger and thumb.
"Yours, Mistress!" Meredith said bashfully.
"Oh come on, Mer, how long have we been doing this now? You can do better than that!" said Izzie a little sadistically.
"My pussy is yours, Mistress!"
"Good, now who else is allowed to play with your pussy?"
"N-no one, Mistress!!" said Meredith, sheepishly.
"What about Derek?"
"No, Mistress, not even Derek!"
"And when's the last time Derek played with your pussy?"
"Not since you commanded me not to let him, Mistress!!"
"Good! And are YOU allowed to play with your pussy?"
"Not without permission, Mistress!"
"Good girl! NO ONE can play with your pussy, but ME! And you know what will happen if your mistress finds out someone else has played with your pussy?" Izzie asked pinching Meredith's clit quite painfully
"N-no, Mistress!!!"
"Right! And you don't WANNA know! Now, I'm gonna go wash the whore off of me. You got me covered in it, tonight!" Izzie said letting go of Meredith's beat red pussy. She got out of bed and walked towards the door, her tits bouncing freely in all their galore. "By the way, you ate some FANTASTIC pussy tonight, Mer. You were super obedient, too! Want me to let you play with your cunt while I'm in the shower?"
"Y-yes please, Mistress!" Meredith said, covering up snug, as if the blankets could cover her shame.
"Hmm. I can tell you really want it. And you deserve it. You've been really good about sticking to my rules. So...NO!" Izzie laughed leaving the door frame. Meredith sat there on the bed, blankets up to her waist, fetal position, resting her head on her knees as she rocked. Her infidelity was known only to her and Lexie right now, and that is how she intended to keep it. However, Lexie's red, lacy thong, soaked mere hours before with evidence of the semi-incestuous affair, remained in Meredith's purse, not as well hidden as she might think.

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There it is. Chapter 1. Let me know what you think. Plot ideas, compliments, constructive criticism, you name it, I wanna hear it. I'm always looking to improve my work. No promises on how quickly I'll write Chapter 2, but I do intend to make this an ongoing story for a while. Thanks for reading!
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Mistress Hospital