A Doctor's Duty

by Free2424

Chapter 10 - The Heat is On

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Author's Note

WARNING: This chapter contains explicit and depressing content!!! You have been warned!

With that out of the way, I hope I evoke emotion with this. I really want to work on that.

Please enjoy and let me know if there are mistakes.


Chapter 10 - The Heat is On

A few weeks passed since Chrysalis' operation, and I still had no idea what was going to happen with her. Negotiations started the moment she awoke, which was the morning after the surgery. It was ordered that all doctors — including myself — were to keep contact with her to a minimum. It was infuriating the first two or three days because I instinctively went to her room on my rounds and got interrupted by the guards.

The upside was that I got to see Celestia way more often. After negotiations, she would visit me in my office and we would have tea. It was nice to spend more time with her, but the more time I spent with her, the more I was reminded of that night Discord spoke to me. It was worrying, to say the least. The more I thought about it, the more I started to make connections. He must have meant the alicorn blood that I had in my system. Was it really harming me? He'd said that there were no known records of magical blood harming non-magical tissue, but could it still affect me?

Tia would frown every time I brought up these concerns. She would always respond by telling me not to dwell on Discord's words: they were only said to get under my skin. Unbeknownst to her however, my uncertainty in this topic got the best of me. I ended up sending a blood sample to the lab for testing. They said that they would send me a letter with the details in a few days time, which I found relieving.

There was quite a backlash to my rescue of the Changeling queen. I couldn't walk on the streets anymore without at least two or three ponies looking in disgust at me or openly yelling at me. Not only that, but the fact that negotiations were happening was also pinned on me after a brief moment of anger towards the princesses. Now that I was the scapegoat for all the "bad" things that have come to pass because I saved Chrysalis' life, I couldn't go out as much.

But as I said, a few weeks have passed. The anger towards me was still there, but it was dying down. I was able to even go out and spend some quality time with my marefiend now. However, the blood test I sent out never came back. It was frightening. I contacted them, but all they said was that they were checking everything over to see if their results were correct.

Today though, the test was the last thing on my mind. Not only was today the day that doctors would finally be able to keep a full eye on Chrysalis, and that meant that I would get some goddamn relaxation over the fear of her heart stopping suddenly. I soon found myself running over to the castle instead. Upon arrival at the hospital, not even five minutes after sitting down in my office, the head of the paramedical department, a pegasus by the name of Stunner, showed up and handed me a letter that Princess Luna had left the night before.

The letter sent me flying towards the castle as fast as I could. To paraphrase it, it said that Celestia was sick with something only I could help with, and that I needed to get to the castle as soon as possible. Multiple thoughts started to run through my mind as ran to my marefriend. Was she in pain? Was it an infection? Why didn't she tell me when she visited?

As I arrived at the castle, I found it in a particular situation. Usually the castle gate was flooding with tourists or officials or the like, but today the gates were sealed. Nopony was going in or out of the castle at all, and the guard presence seemed to have doubled, if not tripled over night. Now I was afraid. What the hell was going on?! What would cause the castle to be locked-down like this? Celestia's sickness? Is it that bad?!

Running up to the gate, I was of course stopped by the guards on patrol, but they quickly and surprisingly led me though a side passage into the castle courtyard. I quickly followed the guard into the throne room where I found Luna pacing. I ran up to her with a worried expression. "How is she?"

"Not well, We're afraid," she responded. "Please accompany us to our sister's quarters." I quickly started to follow Luna down the hall and I quickly realized that we were in fact not going towards Celestia's tower. "Our sister has relocated for the time being," Luna responded when I pointed this out. "We've never seen it be this troublesome for her before. Although, Alicorns receive a far greater suffering than normal mares."

"So it's common then!?" I asked as we started down the stairwell leading into the dungeon.

"Thou could say that, but like we stated before, It has never been to this extreme. We thought to consult an expert," she explained.

We soon arrived at a large set of iron double doors at the back of the dungeon. It was barred with chains and a lock, as well as a large iron girder placed horizontally along the door to keep whatever inside. My mouth fell open as Luna began to use her magic to unbar the door. "Uhh..." I started, "...what exactly is Tia sick with?"

The doors to the room opened with the blue hue of Luna's magic, and a wall of thick, warm musk hit me like a truck. I physically recoiled at the smell of such a strong smell. "We are sorry we have to do this, Carter," Luna said as I blocked my eyes from the heat. I suddenly was lifted off of my feet and thrown into the room. I landed on the carpeted floor with a thump, and I managed to open my eyes to see Luna frowning in the doorway. "We'll make an excuse to why you cannot make it into work this week. Do not fear!"

And with no say in the matter, the doors slammed shut right in front of me. I quickly headed to the doors and started to bang on them as I heard Luna barring the door from the other side. "Damn it, Luna! Let me out of here! This isn't funny!" The barring stopped as the sound of the girder sliding into place ceased. "Luna, I SWEAR TO GOD —"

The sudden sound of soft whimpering reached my ears and stopped me dead. I turned and looked at the room to find the source of the whimpering. The room was a soft blue, with a grey carpeted floor and a white ceiling. It was rather small, with a king-sized bed to my right, and a washroom located to the left. That was it. It was strange that such a room would exist in the castle, especially in the dungeon of all places.

The whimpering came again, and I found that it was coming from the other side of the bed. Upon inspection, I found that the bed was disheveled and there were several large wet marks on it. I slowly walked to the other side of the bed and looked to who was whimpering.

There lay Celestia half naked on the floor: with a sweaty, yellow tank top on her right arm and neck, but the left side of the shirt was bunched up around the left side of her neck, exposing one of her bare breasts. She appeared to also be wearing short pajama bottoms and a pair of dark pink panties, but the shorts where only on her left leg and the panties where around her ankles. Tia had her eyes closed and both of her hands on her crotch: one fingering herself, and the other ribbing her clit furiously.

I stood there in... well, I didn't really know. I was certainly aroused, but there were some warning lights going off in my head. The first thing that struck me as odd was her expression. It wasn't of pleasure, but one of irritation and pain. The second thing was that she appeared to be crying while pleasuring herself. And the last thing was the condition of her more private of areas: it was profusely spewing love juices and it was red and almost puffy in a way.

There were no words that I could say in this situation. I honestly was trying to piece together what the hell was going on here while my marefriend masturbated in front of me. Slowly, I approached her side and knelt down. Tia was so preoccupied that she didn't even notice me get so close to her. Instinctively, I placed my hand on her forehead to see if she had some sort of fever. She felt like she was on fire.

Celestia's eyes snapped open in that moment and ceased to move. Her eyes slowly aimed themselves towards me as I took my hand off of her head. "Hey there," I started, rather unsure of what I was doing, "whatcha' doing?"

That choice one upped the dumpster experience in the 'best/worst' situation ever.

In the next few seconds, I found my self pinned on the ground with my limbs spread out in all directions, and my mouth was being assaulted by Tia's starving tongue. I tried to fight back, but she was using all of her strength to my surprise. My wrists began to throb in pain from the sheer force that Tia was grabbing me from, and my ankles weren't faring nearly as well as my wrists. My lungs began to burn from the lack of oxygen, and that's when I decided that I'd had enough.

Ripping one of my arms from her grip, I used Celestia's moment of instability to reverse our positions. Now I was on top and I was going to get some god damn answers. "Tia, stop this! Are you trying to pull something here?!"

Then Celestia did something that was very uncharacteristic of her: her face contorted in anger and her horned glowed. Next, I felt something collide with my chest and I was sent flying into the air. Then, I landed hard onto the bed and I had the air knocked out of me. When I figured out what had just happened, I found myself facing the ceiling.

There was a sudden tugging at my belt, and when I looked down I found Tia desperately trying to take it off, but it looked like the belt kept getting stuck. She looked absolutely furious now, and began to tug at it with the intention of tearing it apart. I reached down and grabbed her wrists, pulling her forcefully away from my belt and up to eye level. "Tia! Calm down!"

"I can't!" she now wept, "It burns... so bad!" New tears were now flowing from her eyes as her anger fell and despair over took. She began to fall limp in my arms, so I let go and held her on my chest. Not even a second afterwards, Celestia began to grind her crotch against my leg. "Carter... I need you..." she whispered. "I need you... inside of me... I need your seed in me."

Now I was a little creeped out, but from her tone I could tell she was serious. "Well..." I said, flustered. "That's one way to say it." I reached down and unfastened my belt, sliding it off and throwing it onto the floor. "You know, you could have just as — Woah! Okay then!" After my belt hit the floor, Tia zipped down to my pants and hastily tore them off like her life depended on it. As I let her do her thing, I began to take off my shirt, and soon it joined my other clothes on the floor.

By now I was more than fully aroused, and it didn't help that Celestia immediately started to nuzzle, lick, and suck my rod as soon as it was released. As erotic as seeing Tia enjoying herself, it didn't last long. After about a minute, she stopped and climbed back up to eye level. I was about to pout, but as soon as she reached me she sat up and speared herself on my cock, forcing us both to let out a loud moan. She felt amazing: absolutely sopping wet, and hotter that I'd ever felt before. Her pussy started to milk me as soon as I entered her, and it didn't let up for a second.

Celestia didn't give me a second to relax. She began bouncing on my spire furiously, moaning and panting as she did. I grabbed her waist and began to thrust up into her sopping love canal. The primal sound of wet flesh slapping together filled the small room, along with Tia's ever growing musk. Every once and a while Tia would slam down on me and gyrate herself on my cock, using her inner muscles to massage me, before returning to her barrage.

It really didn't take long for me to reach my limit. I could feel the building of my climax in my loins, and soon I would burst. "Oh god... ah... I'm so close...!" I warned Celestia. "You want it inside... ah... right?!"

"Fill me!" she begged. "Please fill my burning pussy! I need it to stop!" Wow. That was enough to send me over the edge. Thrusting up deep into her soft, hot folds, I unloaded spurt after spurt of cum into her womb, making us both moan in pleasure. Tia however, seemed to enjoy it a little too much, considering that her backed arched, her eyes rolled into the back of her head, and she screamed "Yes!"

I fell back onto the bed and Celestia fell onto me, resting her head in the crook of my neck. We were both a panting, sweating mess on the bed, and we stayed like that for what seemed like forever. It quickly began to get cold, and soon all that was warming me was Tia's body heat. Eventually, Tia raised her head and planted a soft kiss on my lips. "You have no Idea how bad that was, Carter. I owe you big time," she said with a soft smile.

"Considering you attacked me with magic, I think I have a pretty good idea," I retorted with a soft smile of my own. At that, Tia looked forlorn. I placed a hand on her cheek and pulled her into another soft kiss. "You know me. I've already forgiven it considering that whatever you have was driving you to tears," I reassured her.

"Yes," she said, wiping one of said tears from her eye while letting out a soft giggle. "I never knew being heat could be that bad. Again, I really owe you for this, Carter."

My jaw dropped. "That was heat!?" I asked in horror. "Jeez! I was told that mares go about their daily lives in heat. How the hell can they do that in the condition I just saw you in!?"

Tia giggled at my over exaggeration and climbed off of me. She made her way to the top of the bed and sat against the headboard, sticking her legs underneath the sheets. Celestia rubbed the spot next to her and I made my way to the same position. "Like I said, Carter," she started, leaning her head against my shoulder as she did, "it's never been that bad before. It felt like my uterus was being bitten by fire ants!"

I don't know why, but something in my head clicked as soon as she had said that. "Did you have any important meetings today? Say, with very important bachelors?" I asked. Tia turned to me with a look that screamed 'are you jealous?', and I rolled my eyes. "I was talking to a guy named Stunner the other day: he's the head of the paramedical department. Funny story actually, I met him because he came to apologize for that trolley crash a couple of months ago. Anyway, he told me that there's this new, illegal drug out there for mares that forces them into heat."

Tia recoiled. "I remember that! A few months ago, someone asked me for permission to distribute it, but I said no of course! What if that got into the wrong hands!?"

I waited for a moment, looking at Tia intensely. She looked back, her face eventually telling me that the question I wanted her to think about had entered her mind. "One of the effects of the drug if taken in heat is an exponential increase in symptom severity," I explained. "It also dramatically increases the chance of conceiving."

"You don't think...?"

"I do think. And I believe that someone — who is not me — is trying to get you pregnant," I said.

There was silence in the room after that little exchange. We stared at each other for a good minute before Celestia looked away with an extremely anxious look on her face. "I have a meeting with the gryphon Prince at noon today to discuss an alteration in trade laws."

And again, Discord's words came back into my mind. It seemed as if I wasn't the only one being 'made prey' by the gryphons.


Celestia's heat lasted a full week, no joke. She had told me that it would usually last that long, but the scale of time didn't dawn on me until the second day. Now, it wouldn't be so bad if it were once a day that I had to experience that other side of my marefriend, but I learnt the hard way that each 'filling' only bought me four hours of time.

I dunno if you realize what that adds up to. It's staggering really. We had to do it six times a day, even if it was in the dead of night. Six times a day for seven days adds up to forty-two times.

As you would imagine, I was exhausted — and not to mention chaffed — after that wonderful/horrible week.

As for our little theory about the gryphon Prince, Tia said that she'd look into it. She also said that it wouldn't be her biggest priority, however. Apparently, she was working on something big, and when I pressed on the topic, she would just tell me it was top secret. It didn't bother me that much: I could understand that she was busy with a lot of things.

A month had passed since that little incident, and I still hadn't heard back from the lab. I was beginning to get worried, but my worries soon disappeared when I got home one night. Actually, it was my birthday, but I hadn't told anyone. So, it went on like any old day. Except, I kept getting a few strange looks around the hospital. To be honest, I really didn't pay attention to them. I was looking forward to a night of self indulgence.

But eating cake and ice cream soon became the last things on my mind. I found the letter detailing the blood results in my mail box in the front of the building, which gave me relief. I decided that I couldn't wait, so I read it on the way up to my apartment.


My cold hand shakily rested on the doorknob, supporting all of my weight. My wide eyes were glued to the letter in my hand, which now felt like it weighed a tonne, but it would also shatter into a million pieces if I dropped it. Ever so slowly, I turned the doorknob and opened the door to the black void that was my apartment. As I took a step in, there was only one sentence going through my mind:

This wasn't happening.

"SURPRISE!!!"

The lights flicked on and blinded me, tearing me away from the letter and to the room. When my eyes adjusted, I found that my living room had birthday decorations smeared all over the walls, and that the kitchen counter and coffee table had been overcrowded with food and gifts respectively. Everyone that I knew was there: Tia and Luna of course, Twilight and her friends, Cross and Sylvia, even Red and doctor Stables made it.

The letter fluttered from my hand and landed softly onto the ground in front of me, like a butterfly. I hadn't realized it before, but my mouth was hanging open from the shock. I closed my mouth, and after looking at Tia's beautiful, happy eyes once more, I closed the door and left the building.

These ponies didn't seem as bright and colourful to me anymore.

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