The Beast Within

by Vinyl_Wubs

Rating: mature
Tags: Romance, Fluttershy, Original Character, Sex, Anthro, My Little Pony: Friendship is Magic
Length: 4573

Fluttershy takes a stroll through the woods and stumbles apon an injured wolf. She takes it in and cares for it, but after growing attached can she learn to let go?

TRIGGER WARNING: Content contains Cum Inflation, ATWT.

Fluttershy takes a stroll through the woods and stumbles apon an injured wolf. She takes it in and cares for it, but after growing attached can she learn to let go? Things begin to change once she learns that it might not be just a normal wolf.

Published 2014-03-11 02:00:14 UTC
Last updated 2014-03-11 02:00:14 UTC

Chapter 1: A Whimper

"I'll give you the details later Fluttershy." Twilight said, smiling as she waved me off.

"Okay. Good luck." I waved, returning the smile as I headed off down the road. I passed through the market and saw the everyday trades going on. You know it was good if Pinkie was there, buying everything in sight that could help with a party. Which... Is pretty much anything. I take the road I normally take to get home and spotted my cottage off in the distance. Right as I gripped the handle my heart jumped. I heard a loud howl from deep in the forest. My hands started to shake as I turned my head towards the sound. I stared into the darkening forest as the sun set. I saw a dark figure move through the trees. A surge of panic hit me and I twisted the handle, rushing into my house and locking the door.

"It's okay Fluttershy... It's just a wolf. They won't hurt you." I said to myself. My heart beating out of it's chest, now finally starting to relax within the safety of my own house. I just want to go to sleep...

I was awoken in the middle of the night by the howl from earlier. I closed my eyes again and tried to ignore it... But I couldn't. It's not because I was scared or... Or because it was loud but... Because it wasn't a normal howl. It sounded like it was in pain. And that's what kept me up the most. I was afraid of it earlier but now I was concerned. I... I couldn't sleep while an animal was in pain. I got up and dressed myself, quickly grabbing a coat, a bag of medical supplies, and heading to the door. As I gripped the handle I froze. While I was worried about the injured animal, It was the middle of the night. I don't do very well in these situations during the day... But at night?

"Deep breath... Deeeep breaths..." I chanted to myself. My heart was pounding and my stomach was in a knot, but the thoughts of what could happen to the innocent little creature overthrew any other emotions and fears I had. I twisted the handle and rushed out. I walked into the forest, following the howls. The closer I got, the more the howls turned into whimpers. Every little twig snapping causing my heart to skip a beat. I walked for a few more minutes before I spotted it. Off in front of a large tree was a dark shadowy figure. Lying on the floor. I could see it's red eyes piercing the shroud of darkness as it stared at me. My breathing increased as I stared back at it. I gulped loudly as I slowly approached.

"H... Hello?" I said aloud. I was met with a low growl, causing my body to lock up. I stood there, terror flowing through me. It was then that the moon light shone through the trees. I saw the red eyes disappear, the shadowy mass revealed to be a large wolf. It's leg was bleeding badly.

The wolf stared at me, it's ears folding back in fear. It showed it's teeth, trying to look intimidating and scare me away.

"Oh my goodness..." I gasped. I quickly rushed over. I knelt down next to it and stared at him. I reached a hand out slowly to touch him. He nipped at me, quickly forcing me to jerk my hand away. "Please... I'm not here to hurt you. If you don't let me help then you could die..." I said as soothingly as possible.

The wolf looked at me, the two of us staring into each other's eyes for a long few moments. The wolf went limb, relaxing as it no longer had the strength to fight back. I reached forward and rubbed a hand against it's soft fur. It started to whimper as I did so. I felt it's heartbeat rapidly pounding in it's chest. "You're going to be okay... But I have to stop the bleeding." I said softly. I reached into my bag and pulled out a small bottle of disinfectant. I opened the bottle and brought it near the wound. "This is going to hurt." I said, pouring the liquid across the gash. The wolf yelped in pain and flinched. I quickly placed a hand on it's back.

"I know... I know." I said in a pained tone. I hated seeing any creature in pain, but it made me hurt knowing It had to be done.

The wolf looked up at me pleadingly, causing tears to well up around my eyes. "I'm sorry... It's almost over." I said quietly. What made me cringe was the fact that I was lying. I pulled out a needle and thread... I had to stitch the wound shut. I held the end of the needle close to my face as I attempted to push the thread through it. Right before I threaded it, I saw the wolves pained expression through the small hole. I closed my eyes and took a deep breath in as I pushed the thread through and tied it off. My hand neared the large laceration on his leg, poking the tip to it's skin. He looked up at me with fear in his eyes. More tears fell from my face as my grip on the needle tightened. "I'm so sorry..."

I finished putting the bandage on. He had stopped howling but... It wasn't for another minute that I realized he had passed out. I pulled a blanket out of the bag and placed it over him. I pressed my face into his fur and started sobbing again. It's so cold out, and I'm not going to leave him alone tonight. I crawled under the blanket and nuzzled against him, wrapping an arm around him. I could feel his slow heart beat. Please be alright... Please.

My eyes opened. It was morning and the wolf was still there, asleep. I leaned down and pressed my ear against him. He still had a heart beat. A smile spread onto my face and I jumped up. He'll probably be hungry when he wakes up. I started to walk towards my cottage when something grabbed my pant leg. I looked down and the wolf had bit down on it. He was looking up at me, whimpering.

"I'm just going to get some food. I'll be back... I promise." I said reassuringly. I tried to pull away but he wouldn't let me. He reached forward and placed a paw on my leg. My insides were being torn apart... I didn't want to leave him alone, and I know he didn't want me to either. I kneeled down beside him and placed a hand on him. "Can you walk?" I asked.

The wolf stared at me a moment before letting out a small growl and climbing to it's feet. It's injured leg stood bent and hovering just off the ground. He started limping alongside me as I guided him to my home. When we got there I opened the door and let him in. He walked toward the center of the room and lied down, letting out a small whimper as it hit the floor. I rushed into the kitchen and scrounged what I had lying around in my fridge. I didn't have any meat... I don't really eat it. I hope what I have is good enough. I set the plate down in front of him.

"I don't have any meat... I hope this is good eno-" I stopped as he started to devour everything on the plate quickly. I small smile crept on my face. My head snapped up. "Oh! You're probably thirsty." I said, quickly running into the kitchen and filling a bowl full of water. I rushed back out and placed it next to his food. After he finished the food he started drinking from the bowl, spilling some on the floor. He quickly started mopping up what fell from the bowl.

"Easy... We have plenty." I laughed. I sat next to him and ran a hand across his back as he finished the bowl of water. "You look a little happi-" I was cut off as he pushed me back to the floor and climbed on top of me, quickly proceeding to lick my face. I started giggling. "Okay! I get it you're happy!" I laughed. He crawled forward and lied down on top of me, resting his head on my chest. I smiled as he closed his eyes and drifted to sleep. I ran a hand across his head slowly, closing my own eyes as I fell into the same slumber.

I opened my eyes and the wolf had rolled off of me. He was lying on his back with his legs lazily hanging in the air. The sight made me giggle a little. I got up and took a seat on the couch. I had nothing better to do today so I grabbed a book that Twilight gave me and started reading. After about ten minutes I read well into the second chapter. There was a small rumbling as the couch shifted slightly. I looked to my right and saw the wolf had climbed onto it had sat next to me.

"What?" I said.

The wolf nudged me.

"What do you mean? I'm just reading a book." I shrugged.

The wolf let out a small howl.

"You want a name?" I asked curiously.

The wolf licked me, causing me to laugh a little.

"Okay sure... How about Puma?" I suggested.

He let out a whine.

"It was just a joke." I laughed. I scratched my head, trying to think of something better that isn't the name for a type of cat. "How about... Scout?"

The wolf's ears perked up and he lunged forward, licking my face.

"Okay! You like that name?" I started to laugh, trying to push him away to no avail. "Stop it! That tickles!" I giggled. I let out a squeal as I fell off the couch. Scout stared at me for a moment. "I'm okay." I smiled. Scout jumped off the couch and started licking me again. Well I guess I should get used to this... Not that it's bad at all...

ONE WEEKS LATER:

"Wow you healed quick didn't you?" I asked. I watched Scout walk on all four legs. He seemed perfectly healthy... I'm so happy!

Scout barked a few times.

"Oh... You don't want to leave?" I said a little surprised.

He barked a couple more times.

"You... Want to stay with me?" I asked

He licked my hand a few times.

"If you want... Sure!" I smiled. I was quickly pushed to the ground. He climbed on top of me and started licking my face again. I started to laugh "You really like me don't you?" I asked. My expression changed to surprise when I felt something warm sliding under my shirt. I looked down and blushed brightly. "Oh you... Really... Like me." I stammered quietly.

Scout started to lick my neck softly.

"S... Scout..." I stammered quietly, my blush growing as I pushed him back a little.

He gave me a confused look and let out a small bark.

"I... Don't know if we should have sex..." I said a little reluctantly. I loved animals but... I don't know if I loved them... THAT much... I mean... I don't know.

Scout licked at my breast through my shirt, causing me to let out a small yelp.

"Scout I... I don't know... I need some time to think about this..." I stammered nervously.

Scout gave a small whine, seeming disappointed. He licked my cheek a final time before backing off and sitting down. I smiled and scratched his head. "Thank you..." I said. His tail wagged happily for a few moments before licking my hand. "I have to go see Twilight for something. I'll be back later." I said, petting him on the head. I walked over to the front door and grabbed the handle and opened the door. Right as I was about to step out, Scout pushed himself between my legs and force me onto his back. I stared down at him in surprise, not knowing what to expect. He stared back at me silently.

"Oh... You want to come with?" I asked. He barked once before starting to walk. "Okay. I don't see why not." I giggled.

I knocked on the door and waited. I ran my hand across Scout's fur, feeling the soft coat slide across my hand. I smiled as the door opened.

"Oh hey Flutters- AH!" Twilight screamed. She was staring down at Scout with fear in her eyes.

Scout looked up at Twilight a little confused.

"Easy Twilight... He's not going to hurt you." I said quickly, trying to calm her down. Her attention snapped back to me.

"Why... Are you riding a wolf?" Twilight questioned, still a little taken back by the sudden wild animal in front of her.

"He's my friend. I saved him in the forest when he was hurt... And now I can't get rid of him." I joked, nuzzling my face against the top of his head.

"Um... Alright..." Twilight said, reluctantly motioning us inside. I got off Scout and sat on her couch.

"So what did you need?" I asked.

"Well... Sorry to disappoint but... I already finished what I needed." Twilight said, staring intently at Scout.

"Oh..." I said quietly.

"But there is one thing you can do... If you want." Twilight shrugged.

"What?" I questioned, sounding a little curious.

"I need someone to record this plant and what happens to it during a full moon." Twilight said.

"But... It's a plant... What happens during a full moon?" I asked.

"It blooms of course! I need you to study each phase. Trust me, you'll notice when it's changing." Twilight said, handing me the pot with a small plant growing from the soil. I took it and looking down at it.

"Oh um... That doesn't sound very hard." I said uncertainly. "Is... There a catch?"

"No catch. Just record the results and bring it back to me in the morning." Twilight smiled.

"Sure..." I said. I stood up with the plant, book, and pen in hand and headed to the door. "Is there anything else you needed?"

"Nope. That's about it." Twilight said.

I nodded, quickly being pulled onto Scout's back and giggling again. "Okay Scout... Take me home." I said, pointing out the door. Scout started running and I held on tightly.

I sat there, staring at the plant with my head on the table. Waiting... I glanced up out the window and saw the sun nearly gone just over the horizon. I felt something nudging me. I looked to my right and saw Scout's head on the table, lazily staring at me. I smiled and rubbed my hand across his head. "You're bored too aren't you boy?" I asked with a small sigh.

Scout licked my arm and looked at me.

"I have to watch the plant." I shrugged.

Scout let out a small bark.

"I know... But that doesn't change anything." I said, rolling my eyes before looking back to him.

I let out another sigh as I continued to stare at the plant. I'm a little hungry, and I'm sure Scout is too. I should probably go make someth-

"EEP!" I squealed as I felt something press against my pussy. I quickly looked down and saw Scout's head was under my skirt. "Scout what... What are y- Oh!" I let out a small moan as I felt his tongue slide into my underwear and lap across my labia. My heart started racing. I wanted to push him away but... It felt good...

"S...Scout... Maybe we sh- Oh my..." I moaned loudly. My legs spread out as he continued to lick me. Suddenly he stopped. I looked down at him in confusion and saw he had my panties in his mouth. "Oh..." I said quietly. I stood up and started taking my clothes off. I looked at him and saw he was still staring at me intently. I nervously sat down onto the floor and opened my legs. He walked over and pushed his snout back to my already wet entrance and started to lick it once again. I felt electricity shoot through me as his tongue ran across my clit, only making my moans more passionate. My head fell back to the floor and I started to writhe on the floor erotically, although... Unintentional.

I glanced up at the plant on the table. I spotted the moon out the window just in time to see it's dim light wash into the room. It's time... And I should be watching it to see what ha-

"S... Scout?" I said uncertainly. I heard a stretching sound. I looked down and... He was growing. My eyes widened in horror as I watched him change. I backed up against the wall and stared, my body beginning to shake slightly as panic set in. I saw him shift to his back legs as they grew to look more like feet. His front legs made a sickening cracking as they transformed into arms, his paws growing into clawed hands. His head remained relatively the same, but his teeth seemed to grow... Sharper.

"Scout?" I said, a growing twinge of fear in my voice. His head snapped to me and he burst into a sprint towards me. I screamed and closed my eyes, curling up into a ball as I waited for something to happen... I expected to feel the stabbing pain of his claws pierce my skin, or his teeth sink into me. But I didn't expect to feel a hand on my cheek. I opened my eyes and he was kneeling in front of me, his hand gently caressing the side of my face.

"What... Are you?" I asked shakily.

Scout made a small barking sound.

"You're a werewolf?" I questioned.

Scout nodded.

"But isn't that a human that's half wolf?" I asked.

Scout shook his head and barked.

"Oh... So it can work both ways. You're a wolf that's half human?" I said. My fear was fading and I was actually growing more... Interested.

Scout started licking my face.

I laughed and tried to push him away, but he was too strong. "Stop! I love you too..." I giggled. I tensed up when I felt something slide along the outside of my pussy. I looked down, my eyes widening once again in not horror, but surprise. His dick had grown larger... It looked to be at least 15 inches... And I think it was still growing. Under it I saw that his balls had increased in size too... Substantially.

"Oh my... You... Really love me too... Don't you..." I stammered quietly. He looked at me for a few seconds before he started licking my nipple. I bit my lip as a small spike of pleasure hit me. I stared at him, moaning as he teased the tip against my entrance.

"You... Really want to don't you..." I asked quietly.

He responded by licking me a small lick on the neck.

I smiled. "And... I could say no and you'd be fine with that?" I asked, raising an eyebrow.

He nodded.

"You look really pent up... How long has it been since... You know..." I asked a little curiously.

He barked.

"Oh my... It's really been that long?" I asked in shock. I looked down at his pulsating shaft as he waited there, the tip of it tasting my lower lips. "Okay um... Just... Please go slow... It's been a long time for me too..." I said reluctantly.

Almost immediately I felt a pressure as he started to push. I gritted my teeth as the head stretched me, finally forcing it's way in after what seemed like an hour. I started panting, the pain of him stretching me increasing as he pushed more and more of his length in. His mouth pushed into my breast. I felt his teeth gently bite down on my nipple. I moaned, feeling him start to suckle milk from it. The building pleasure was slowly overthrowing the fading pain as his throbbing member dug deeper into me until it hit a barrier. He moved his hips back and started to thrust.

"Oh god..." I wailed as I felt every inch of him slide out and in... Out and in...

He pulled his head away and started to growl. His thrusts stopped and I felt his hands grab my hips. I looked down at him in confusion as he stared at me.

"What... Are you doi- GOD!" I screamed as he yanked me towards him, thrusting forward at the same time. Our hips noisily slapped together as he pushed and pulled me onto his dick like a cheap fuck toy. My eyes rolled back and my body started to twitch. My pussy was spasming rapidly around him as I felt myself building up to an orgasm. It wasn't for another minute that I realized I was screaming. I grabbed my breasts and squeezed hard.

"Do... Don't... Stop..." I sputtered as he continued to toss me back and forth with his strong arms. That only seemed to drive him more, yanking me back harder as his thrusts increased in ferocity. My eyes shot open as he bottomed out with each thrust. Then suddenly he stopped. I looked down and saw he only had half of his length in me, I could feel it twitching violently. He started pushing forward slowly. I could feel a pressure as the tip of his dick kissing my cervix as the pressure grew and grew. Finally I felt him break through and enter my womb. My eyes shot open as an orgasm crashed through me. My body swayed on the floor as he pulled me closer and closer until I sank to the hilt. Then I felt it... His dick started to grow as his massive balls churned and pumped it's payload into his pulsating member.

"Let... It all out..." I said between pants. I let out a scream as I felt his boiling cum fill my womb past it's limit. My tongue lolled out of my mouth as I watched my stomach lurch forward. "So... Much... Oh god..." I moaned. I stared down as my gut continue to stretch and fill with his long needed release. I panted heavily as he started to pull out. As soon as his dick exited my womb, my cervix locked again, trapping all his seed inside. The moment he was out of me I went limp, breathing heavily as I stared up at the ceiling. I glanced down at Scout and saw him walk over and start drinking from his water dish. I smiled and lied my head back on the floor again.

"If... You're feeling as good... As I am..." I sighed contently, running a hand over my bloated belly. I tried to get up but I was too heavy... "Man... You sure had a lot in there..." I chuckled quietly. I think I'm going to take a nap... Yeah... That sounds good. I closed my eyes to sleep when I felt hands on my hips. I opened my eyes and looked down. Scout's dick was hard again and moving into position.

"Scout no..." I said.

Scout looked at me, tilting his head curiously. He grabbed me and flipped me over onto my hands and knees.

"No Scout... I don't want a new position!" I said quickly. The real fear set in when I felt his throbbing dick press against my ass. "N... No Scout... Wrong... Wrong ho- OH GOD!" I screamed as he shoved it in me. He wasn't holding back, ever thrust tearing me apart. My entire body started shaking.

"Sto... Stop..." I groaned. He let out a small howl and started licking my wings. My nails dug into the floor as I started to feel a building pleasure. The pain was still unbearable...

Scout howled loudly. I felt his shaft start to grow. My mouth shot open and my tongue fell out again. The pain was gone... All I could feel was the pleasure of every vein sliding in and out, roughly scraping my insides as he thrust harder.

"Fa... Faster... Oh god faster..." I moaned loudly. My moans turned screams as the sounds of his balls stirring and spewing however many more gallons into me echoed across the room. I looked down to see my midsection start to swell again. There was a new sensation I felt... Rising through me.

"What... What's happeni- Bllgphg!" I gurgled as his sperm boiled up my esophagus. I started choking as it spewed out my mouth and to the floor in torrents. My entire body started heating up and my eyes rolled back again.

"No... No mo-" I said before another wave exploded from my mouth. My eyes shifted down just enough to see my stomach hit the floor with his last load. He pulled out shortly after and I breathed a sigh of relief. My heart was pounding out of my chest. I was glad it was over but... I was hanging just on the edge, and I couldn't even reach down to pleasure myself. In fact I... Couldn't really move at all. Then I felt his hands on my hips again. My head shot back and I stared at him as he mounted me again, aligning himself up with my quivering pussy.

"Scout... Please wa- BLGPH!" I sputtered as my neck tensed up, vomiting more of his semen as he thrust into me.

THE NEXT DAY: Twilight's POV

I heard a knock on the door and I jumped up excitedly. I rushed over and opened the door. Fluttershy was standing there with the plant in hand along with a small notebook. "So you finished it?" I asked.

"Sorry no... I was kind of uh... Preoccupied all night. Sorry..." She said quietly.

"Oh..." I said, giving a small disappointed sigh. "Well that's fine... There's always next month."

Fluttershy's eyes widened. "Oh my..." She said. Her face turned red slightly.

"What's wrong?" I asked curiously.

She shook her head violently. "Nothing!" She said quickly, doing an immediate 180 before walking away.

I raised an eyebrow and shrugged. "Oh well..." I sighed and closed the door. I suppose whatever she had to do was important. She was probably filled to the brim with stress already, I just added more to it. Anyways... Time to get back to work.

Fluttershy's POV:

I walked into my cottage and spotted Scout right away. I smiled as he rushed over and started licking me. "Good to see you too boy!" I laughed, falling to the floor and wrestling with him. After we played for a few minutes I headed to my room to lie down. I fell onto the bed, my head hitting the pillow. I was so tired and I just wanted to sleep... The bed shook a little as Scout climbed onto it and nuzzled himself against me. I smiled and wrapped my arms around him in a hug. "Good night... Or morning I guess..."