A Doctor's Duty

The feeling of soft, warm fur against my chest and arms greeted me as I slowly started to drift back to consciousness. I'd have to say it's the best feeling to wake up to. Having someone warm and soft in your arms just makes waking up ten times better. However, that bliss ended as my company gently and quietly removed my arm from around her and got out of the bed. I frowned as I heard the curtains open a crack and the sound of magic being channeled.

Light started to stream through the crack in the curtains like a laser hitting me right in the face. It was terrible, and what was worse was that I heard footsteps moving towards the bathroom. I sighed. I was probably just sad that the night with my surprisingly comfortable marefriend was over. The footsteps suddenly stopped at my sigh, however. There was a moment of hesitation, and then to my delight the soft feeling of Tia's fur came back with full force as she rejoined me on the bed.

"You should have told me you were awake," she whispered. I draped an arm around her and brought her close. She in turn placed a hand on my chest and got as close as she could.

Placing a kiss on her forehead just below her horn, I smiled. "Then I would be lying... I'm still half asleep," I whispered back. My hand traced it's way behind her and along her back, stroking back and forth. "What time is it?"

"Around six thirty." I groaned at the proximity to my awakening. "If we shower together, we'll have more time to lay around," Celestia suggested. A little voice in my head told me that was a great idea to make me late for work, but I hummed in approval anyways. I couldn't tell how long we laid there for. It was like time had stopped and we were stuck there for all of eternity, just enjoying each other's bodies and presence.

My hand traced Celestia's body, trying to memorize every nook, curve, bend, every detail, as my feet brushed up against her's. I could see why some might consider her a goddess or a sex figure. They were so blind though, they didn't even see Tia: just the idea of perfection that now lay before me, completely and utterly bare. I started to silently chuckle to myself, thinking that I must have been the luckiest man ever.

Tia poked me in the chest as she looked me in the eyes with a curious look in those wonderful, magenta eyes. "What are you laughing about?" she questioned. "If it's a witty comment about how I dressed last night..."

"Seven billion," I said. Now she really looked confused which made me chuckle quietly. Looking at me with a furrowed brow and a tilt of her head was an adorable look for her. "Seven billion humans, and I'm the lucky guy who got to come here and play footsies with you." Celestia took a look of awe on her face as I told her, but it soon faded into a genuine smile.

"I suppose I've won the lottery then," Tia said gratefully. "One out of seven billion individuals, and I get a wonderful, sexy doctor who knows how to treat a mare right. I'd say you're making a great first impression for humans, Carter. Keep this up and I may 'forget' to look for a way to get you home."

"Ha!" I laughed. "Go home? Two things wrong with that. First, why would I go home when I have this?" I squeezed her round, plush butt to emphasize my point, to which Celestia gave a small, surprised yelp at and broke out into a series of giggling. "And lastly," I said, poking her in the chest, right above her heart, "my home is here now, with you."

Tia's expression suddenly turned into one of content. She slowly moved her head above me and pressed her lips onto mine, moaning slightly as she did. Her arms started wrap around my neck as I kissed back, opening my mouth and moving my tongue to intercept hers. The kiss lasted for only a few moments, but it left both of us feeling more fulfilled. Tia then got up from the bed and walked over to the bathroom door, my eyes following her every step. She turned and leaned against the door, giving me a sultry look before winking and entering the washroom, leaving the door open.

After waiting a few moments and hearing the shower start running, I threw the sheets back and got up from the bed. I wandered over to the bathroom door and stopped just short of entering. I peered through into the room and into the shower where Celestia stood letting the water run over her magnificent body. Her mane ran straight down her neck and back, splaying over her shoulders beautifully. She looked at me slowly and beckoned me over with a seductive look.

I moved and joined Tia in the shower, the hot water hitting my head didn't deter me from moving close to my mare, wrapping my arms around her waist and locking lips with her again as her chest pushed into me and her arms mimicked mine. She moaned as my tongue began dancing with hers, but eventually she forced herself into my mouth where she explored my sharp teeth. The kiss broke only when my hand slid down Celestia's back and to her love, where I began to tease her with small prods from my digits.

Tia moved away slightly and looked at me with a cocky smirk and an eyebrow raised, before her eyes trailed down my body and looked at my now stiff member. She gasped and giggled as I suddenly pushed her up against the wall, pushing our bodies together. "Oh?" Tia giggled. "A rough little quickie then? You're lucky I like a little roughhousing here and there."

I pressed my mouth against hers and kissed her passionately as she wrapped her arms around my neck and pulled me closer. My left arm then moved to her right knee, lifting it and surprisingly Celestia moved her leg with my hand to above my left shoulder. I broke the kiss and stared at the display of flexibility with wonder. looking back at the princess, she raised her eyebrows seductively at me. "You're just full of surprises, aren't you?"

Tia giggled, but it quickly transformed into a soft moan as the head of my penis began to prod at her entrance. Slowly, I pushed into her folds and I was greeted by the same hot, wet sensation from the night before. Celestia let out a hearty moan as I parted her walls and bottomed out in her. I stayed there for a moment to relish the feeling of being inside her, but Tia started to get impatient with me.

"C'mon!" she groaned. "Rut me already! Quit teasing an—!" She quickly gasped and let out a moan as I pulled out of her and thrust into her warmth. I gave her no time to recover however, as I began to retreat and slam myself back into her pussy repeatedly, causing her to pound into the side of the shower. Celestia yelped in pleasure every time I plowed her with my cock, but it soon bordered screaming as my right hand began to massage her clit.

I couldn't help myself from groaning at the feeling of her warm, tight, slick pink canal around my rod. Every push was like a jolt of electricity rushing through my body. I felt alive. The pleasure was indescribable, and it wasn't too long after that I began to feel my climax coming, and judging from Tia's pleasured shouts of delight, she was close as well.

"Tia~! I'm...~!" I shouted over the water, but I was quickly silenced as Celestia forcefully pulled me into another lustful kiss. She screamed into my mouth as her walls clamped down on my member and her hot, thick juices streamed out onto me. I soon followed not even a second after, ramming my self into her with all the force I could muster, I fired stream after stream of my hot spunk into her womb.

We stayed there for a few moments savoring our kiss before I pulled away for air. I pulled myself out of Celestia and helped her get her leg back onto the ground. "I'm starting to think... ha... that you're in heat!" I said, panting for air.

"Why?" Tia panted. "Are you worried... you're going to get me pregnant?"

I moved and got the soap gel from the shelf, trying to catch my breath as I did so. "Na, not really. I'm pretty sure it's impossible anyways."

I turned with soap in hand to see a surprisingly saddened Celestia looking at me. "Why is that?" she asked quietly over the water.

There was suddenly hesitation in my actions now. Did... Was she considering...? "W-well... I'm almost positive that the amount of chromosomes in our bodies are different. However, humans still might be able to reproduce with ponies because of our biological similarities... but I know that I can't have children." I explained. I began to place a dollop of gel onto my hand and put the bottle back on the shelf.

"And why's that?" Tia asked with a hint of frustration in her voice as I turned her around and started to wash her back. I could feel her body becoming more and more stressed as I remained silent.

I sighed. I really hated talking about this...

"Well... I'm... sterile."

Everything suddenly stopped. Even the water seemed to be still as my words echoed over Celestia, who remained completely silent and still. However, I could feel her body start to loosen up, so I continued washing her body. "Y... you're sterile?" she asked. I could sense a fraction of heartbreak in her voice.

"It's just something wrong with my DNA..." I explained solemnly. "I... I'm sorry, Tia. I really should have told you this sooner."

Celestia let out a large sigh, relaxing her body as she turned to me with a sad smile. "It's fine..." she said softly as she took me into her arms. "I just wasn't expecting something like this after our first night together." Tia pulled tighter as she started to chuckle menacingly. "Although... now that I think about it, this might work out for the better!"

I pulled away from Celestia and gave her a curious look while I went to work on her front. "How so?" I said cautiously.

"Well, think about it," she said with a giggle. "I'm not in heat now, but..." I hesitated for a moment in washing Tia's breasts when she said this. She must have noticed this because she leant down to ear-level and whispered into my ear. "I hear that sex while in heat is supposed to be just divine... and mine last for quite awhile, too."

I gulped. I had heard stories about mares in heat, and most of them ended with the male being sent to the hospital.

"What's going on, Carter?" I looked up from the cup of coffee in my hands and at Cross, who was giving me a curious look from a table not too far away, along with Sylvia. It was rather late and Cross decided that it was a good idea for me and Sylvia to relax in the break room with her, so I made us all coffee and started leaning against the counter. I raised my eyebrow at her and she rolled her eyes. "You've been acting differently all day," she said, raising her coffee as she did so. "You never get my coffee right."

Now I rolled my eyes. "You can't be seriously be judging my mental state based off of the way I make coffee," I said, giving Cross my most deadpan expression.

"I-I'd have to agree with Cross on this one, Carter," Sylvia piped, taking a sip of her coffee. "When you came in this morning, you were really happy!"

I shrugged the comment off. "So what? I had a good morning, and I was happy. Is there a problem with that?" I asked. "What's with the twenty questions anyway? It's not like my pastimes affect you guys at all."

"Actually," Cross started, sounding a bit annoyed, "when you start staring into space halfway through replacing somepony's fucking heart, then I think it becomes my business." Sighing, I took a sip of my coffee. It's not like I could argue against that.

A small chuckle came from my left, grabbing all of our attentions and forcing us to look towards the voice. There stood a well built, cerulean stallion with a messy, royal blue mane and tail wearing a doctor's coat. I recognized him as Internal Vitality, but everyone just called him I.V. He was the anesthesiologist who assisted me in Fancy Pant's operation, and I'd learnt to respect him and ask for his assistance in many operations.

"Isn't is obvious Cross?" he asked, pouring himself a cup of coffee. "I mean... you of all ponies should see the signs." Cross quickly looked back to me and squinted her eyes, as if to analyse me as I.V. continued. "Unreasonably happy... Mind wandering..." And in her moment of realization, Cross shouted something that would cause Sylvia and I.V. to tumble to the ground in laughter.

"You FUCKED!"

My hand met my face as my colleagues started dying of laughter. "Really? That was the best way for you to put it, Cross? And yelling it for the entire hospital to hear?" I asked, not really believing that she's just screamed... those words.

"Nonono, you're avoiding it!" she accused, slamming her coffee to the table and pointing at me. "Who!? Tell me who! I order you!"

And like the genius I am, I responded in the best way possible. "...Princess Celestia."

The laughter had stopped and all three now stared at me with disbelief. "Yea right..." I.V. scoffed. "C'mon, don't be like that! Just tell us who!" I finished my coffee and shrugged. If they weren't going to believe the truth, then I couldn't help it. I'm rather devious, aren't I?

"Sorry, guys. If you wanna find out, you'll have to wait until we decide to make it official," I said, placing my cup in the nearby sink as I headed to the door.

"Where do you think you're going?" Cross warned. "Your shift doesn't end until eight thirty."

"Well," I started, "if you wanna explain to princess Luna why I was late to my audience with her, then be my guest." I knew it wasn't an audience, but I wanted it to sound more formal than it actually was. That way, Cross wouldn't get too fussy about leaving early. It was only eight, after all. Cross groaned and waved me off to go do my business.

The words that came out of her mouth terrified me and excited me at the same time. I tried to regain my composure after coughing up a mouth-full of tea, but I was unsuccessful. Luna on the other hand was sipping from her cup completely calm, like nothing had happened. I suppose she was expecting this kind of reaction. "Well?" she asked, putting her cup on the saucer on the small table in front of us. "Art thou aware of this?"

"Luna," I warned, placing the cup on my own saucer after deciding that scalding tea wan't the best choice of drink at the moment, "what are you getting at?"

"We haven't anything to 'get at,' Carter," Luna explained. "We were simply seeing if thou were aware."

After some thought, I took a deep breath to calm myself. This wasn't the Luna that was going to try and kill me. This was my good friend, Luna. She wasn't testing me to see if I was a threat, she was just curious. "Yes, I... I am aware of that," I confirmed, looking Luna in the eyes again. "May I ask why you suddenly asked this?"

"Well, with thou courting my sister..." she didn't need to say anymore. I knew that she was just trying to warn me of future events in her own way. And it was because of this worry that I started smiling at her. Luna really was a nice person despite her past.

"Ah!" I started. Now that I knew where she was coming from, I decided a little bit of fun needed to be had. "Luna, if you wanted to... all you needed to do was ask."

Luna grunted in annoyance and glared daggers at me, but the look was ruined by the blush on her face. "Thou can only dream of us... doing... that," she shuddered.

"Being the keeper of dreams, I bet you could make that happen though," I laughed. She had ran right into that one and she knew it, if her expression was anything to go on. Deciding that I didn't want to start bullying her, I raised my hands in defeat at her stern gaze. "Alright, alright... I'll stop for now, Luna, but I will strike again," I said, standing and stretching.

"We will see thou another night, Carter."

I bowed respectfully and smiled at my friend as I stood back upright. "Of course, I wouldn't miss it for the world." I turned around and headed from the small commons area, waving my hand lazily to the side as I reached the door. "G'night."

Luna said nothing as I left the room and made my way through the winding corridors of the castle. The thought of going home and passing out in bed crossed my mind several times, but I decided against it. The truth was, I was rather curious of the things that Tia did in her spare time when she wasn't lounging around with me or taking a cat nap. And so, I took it upon myself to surprise her when she wasn't expecting me.

However, as I reached the door to her tower, the lone guard standing by the door saw me and approached me. "M-mister Bowman?" he asked with a hint of nervousness. I nodded and his eyes darted behind me suddenly. "The P-Princess would like to see you for... uh... w-well, she'd like to see you."

Well, so much for the element of surprise. "Great," I said, sighing softly as I did so. "I was on my way up anyways." The guard suddenly smiled at this, which I found more curious than his previous stuttering. Sure he may have been unnerved by me because I was human, but now he seemed relieved...

The guard opened the door and bowed to me. Glancing at the guard as I entered the stairwell, I began the trek up to the top of the tower. I reached those familiar doors to Celestia's room and knocked, but not getting an answer.

Now I was a bit worried, so I knocked again. This time, Tia's voice greeted me. "Come in, my love..."

"...love?" I pushed open the door to find my marefriend lying on her four-poster bed, completely naked, in a very alluring pose. Her gorgeous eyes met mine as I slowly closed the door behind me. She wore a sly, seductive smile as she beckoned me over with a finger, however I did not comply. "C'mon, I need some time to rest. I just got off from work, you know," I said.

Celestia surprisingly rolled her eyes at me and moved to sit on the bed facing me. "A normal stallion would jump at an opportunity to lay with their Princess, Carter," she said in a rather condescending tone. My expression turned sour at this.

Something was going on here.

Not only did the real Tia know I hated when people acted higher than others, but she also knew that I minded being called a stallion. "Well, it's a good thing I'm not a pony then," I said, looking over Celestia for any signs of deception.

"Yes, it is a good thing. A pony can't satisfy my needs," she said, noticing my distaste for her tone. She stood shakily and started taking slow steps towards me. Celestia must have been trying to look seductive as she walked, but it was ruined by the fact that her legs were shaking more and more each step she took. Her legs suddenly gave as she reached me. I caught her just in time, and she wrapped her arms around my neck. "I need a strong, brave, and noble human to give it to me!"

"What did I get you for your birthday last year, Tia?" I asked suddenly.

A look of fear graced her eyes for only a moment, but contentment retook them soon after. "Why does it matter, Carter? I want you to take me..."

"I probably would if you were actually Celestia and not fucking horrible lair," I said.

There was silence for a moment, neither of us dared to move. The fake's face suddenly stretched into a shit-eating grin as her magenta eyes started to glow with green, fire-like light. "I think you'll find I can be quite persuasive..." There was suddenly something digging into my mind, and I mean that it felt like something was crawling into my brain. "Kiss me..." a voice whispered in my head as I stared into those green eyes.

What happened next probably scared the shit out of her.

"No," I said to her face. Her expression was shocked for only a moment because it soon twisted into a pained look. Her hand grasp the fur on her chest, just over her heart, and groaned in pain as tears suddenly streaked from her eyes. Without pause, her body suddenly exploded into green flames and in my arms was no longer Tia, but a bug-like creature with holes in her limbs, horn, and insectile wings. She bore a dark cerulean mane and tail, large breasts, and dark green, slitted eyes. "H-hey!"

"C-curses!" the bug grunted in pain. "I'm too late!" She was sweating like mad, and she must have been dizzy and exhausted from the way that she walked. "M-my children... I... I don't want to die..." I added anxiety to the list as well. I looked for something more. I couldn't tell what was wrong with her. And then I saw it. Her chest above her heart was a little higher up than it should have been.

Her heart was hypertrophic!

More tears streamed down her face. "I... can't die. My... my children will... die. I... I...!"

"You aren't going to die," I stated, moving to lift her into the air. She looked disbelievingly at me as I lifted her into the air and began to race out of the room and down the stairs.

I would save her. It was my duty as a doctor.