I looked at Fluttershy, who was sweating and breathing madly with a huge blush on her face.

"So there's more to this experiment?" She asked.

I nodded with a warm smile on my face. "Yes. And it's the best part."

"Really?"

"Of course," I reached in and hugged her, both of our naked bodies sharing warmth. "Because this time, both of us will feel that wonderful pleasure," I told.

She tilted her head, which looked so cute and hot because of the sweat and some droplets of our sex fluids on her face. "But I felt good when I... drank your cum."

I chuckled a bit. I guess that could also be described as pleasure. "That's different. I'm talking about the sensitivity and sensations from me touching you on your mare parts."

"Oh," Fluttershy put a hoof to her chin and looked down in thought.

While she did so, I looked down at her dripping dark mare parts. I took my finger and tapped the little nub sticking out, making her gasp in bless.

"You ready?" I asked.

She looked at me in the eyes and nodded. "Yes."

"Alright." I was up on my knees, letting my hard dick hang and drip excess cum onto the bed. I pushed off the sheets that got rustled, so now there was only the pillows and mattress cover. I looked back at Fluttershy to see her rubbing herself... down there.

I looked at her with a surprised and amused expression. That must've made her thought she did something wrong, because she withdrew her hoof in an instant, flushed madly, and started to apologize rapidly.

I told her it was alright with a warm smile, and that it was perfectly normal. This seemed to calm her down enough to ask and make her lay on her back.

Her hind legs spread out like I instructed, and her forelegs curled up to her chest. That was probably a fetish of mine when a pony curled their forelegs to their chest like that. It made them so cute and adorable.

Getting back to the greatness that was about to commence, I went on my knees to hover over her. I started to stroke my boner as I explained to her, "This might hurt a bit at the start, but I pinkie promise it would get a lot better."

"H-hurt?" She was trembling.

I had to explain in another way. "Like a needle. It will pinch at first but you won't feel anything after that."

She still looked hesitant.

"I know you're a stronger mare you put yourself to be Flutters. You can handle this, and if it hurts more than you think you can take, just tell me, alright?"

I grinned when she looked up at me and nodded. She closely stared as I went into the correct angle to fuck her from above. I first teased her and myself when I braced the shaft of my dick on her pussy. She started to moan softly and I started to grunt quietly when I slid my cock up and down her patch. I leaned into her face and gave one peck on the cheek, pressing my dick between our bodies for a mere second.

Fluttershy squirmed the more I rubbed my cock on her pussy. She was close, I could tell.

So that was when I turned it up a notch.

I took my dick off of her winking pussy, making her actually whimper. But that whining went away as soon as the tip of my cock went inside her, replacing it with a long inhale of breath.

She gasped. "Mike..."

"Does it hurt?" I asked, already knowing the answer.

"No. Not yet at least."

"Well then..." I pushed more of my manly meat into her, making her squirm. It wasn't until she took about three inches of my cock inside when her cries of pleasure turned into slight pain.

"Shh..." I cooed as I stroked her mane. When she calmed down enough I slid more of my cock inside, making her shudder and grasp the mattress cover. It wasn't long until my whole dick was inside of her.

She breathed heavily. She looked down to see that my cock disappeared inside of her. "H-how...?" She asked.

"Hm?"

"How did that all fit? I thought maybe you'd go halfway, or..."

I smiled when she was lost in thought, still with me inside of her. I placed my hand on her lower belly and started to rub in circles. "It may not seem like it, but your mare part can stretch a lot," I explained as simply as I could.

She didn't have time to nod or reply as I began pulling back.

"What are you- ah!" She moaned when I pushed back in softly.

I did the process, pumping my dick using her insides. Her walls wrapped around my cock perfectly, turning on all the sensations my dick could possibly activate.

I grunted and moaned myself as I started to go a little faster with my thrusts.

It felt amazing! I milked my dick inside of this sweet mare, feeling the insides and how her tight pussy was constricting my penis. I kept my eyes closed, mostly because I wanted to take in this sensation. But for a brief moment, I opened them to look at Fluttershy.

It was hot as hell.

She moaned and squirmed under my movements. Every time I thrust she bounced up with a gasp. I knew she loved this, she had to. And the next thing that happened proved it.

"Faster..." I couldn't quite hear from her.

I grunted then replied. "What was that Flutters?"

She moaned. "I-I said..." She gasped. "Faster!"

I smirked, about to tease her. "Faster?"

She looked at me pleading.

"Are you sure about that Fluttershy? You might not be able to-"

"I said faster! Harder!" She yelled, giving me The Stare.

Despite her using the stare on me, the pleasure I was receiving blocked that out and made me comply to her words.

So right there on top of her, I started to work harder. Every second I pushed faster and with more force. And every time I did, she moaned louder and louder. I wasn't long until she started to scream on the top of her lungs, yelling at me to go harder even though I was at my limit, slamming her to the moon. Thank god she was living on the outskirts of Ponyville.

"M-Mike..." She soon let out. "I-I'm about to-"

"Yeah! Me too!" I pulled out.

I wasn't afraid that I would get her pregnant, I doubt we could cross-breed anyways. In fact, I would love to give her my babies. But when I pulled out, it was to make some changes.

Fluttershy looked at me like she lost her favourite pet. She was about to say something until I cut in.

"Stand on all four of your hooves Flutters," I said between breaths of air.

It didn't surprise me she didn't hesitate, she was way into the moment to be shy. Nothing wrong with that.

Once she was on all fours and was looking towards the bedpost, I crawled my way over behind her and slammed my dick in immediately, beginning the process once again.

She moaned and yelled, still in her cute vocals. I pumped and rocked her wildly. We were both living in heaven that's for sure.

Soon I felt myself coming close, no doubt Fluttershy was as well.

I drew my humps to lower speeds, making Fluttershy quiet her moans. I looked down to see my throbbing dick disappear inside her, holding it in place. I squinted my eyes one final time before going for the finish. I picked up the pace, and thrust faster into her, milking my cock like never before.

Fluttershy squeaked and came, her fluids covering my dick. She went silent as I slowed my pumps, soon orgasming myself.

She moaned sweetly when my cum warmed her insides. I bet it felt so wonderful in there. The sticky substance combined with my moving dick and her love juices.

I took my cock out of her with a pop, and when I did she collapsed on the bed, me following her by laying down on top, snuggling into her. Our love juices were pressed between our bodies as we lay there, making little sounds from sudden movements.

The next thing I heard was Fluttershy snoring musically.

I leaned in and kissed her cheek. "Goodnight, Flutters." Our two naked bodies huddling slept the night with peaceful dreams on Fluttershy's wet bed.

I opened my eyes slowly, Celestia's sun burning my eyes when they did. Once I struggled and managed to open my eyes, I looked at my surroundings.

Fluttershy was still sleeping I thought. She was still in my embrace with a warm smile plastered on her face.

I noticed I was still naked and my cock freely hung with no clothes to restrain it. It bobbed happily against the yellow body it braced upon.

I closed my eyes, about to take a nap with Fluttershy. They immediately opened when I felt something on my dick.

It was Fluttershy.

"Morning sleepyhead." She said in her cute voice, licking my cock afterwards.

I grunted then replied, "Says the mare that fell asleep first."

She giggled, then leaned in and nuzzled her cheek against my chest. "I really enjoyed last night Mike. Thank you so much."

I rubbed her mane softly, hugging her gently.

Soon enough, after my quick blowjob and a quick shower with Fluttershy, we went downstairs. I had my clothes on and we stepped out of the cottage. The bunny "Angle" was mad at me for some reason. I laughed out loud when I thought of sticking my dick up his ass.

Fluttershy questioned me and I said it was nothing. I then asked her, "So, did you enjoy the experiment?" It was a stupid question, don't judge me.

"Are you kidding?" Fluttershy sure did. "It was wonderful Mikey!" She said with a bright smile.

I smiled down at her. "Would you recommend your other friends to do it too?" I asked.

She beamed. "Of course! They would love it!"

I smiled at her warmly, soon turning into a straight face. "But Flutters,"

She looked up at me, her smile fading when she saw my serious look. "Yes, Mike?"

I sighed. "This is something special that two ponies... and humans, do when they love each other. You can't just go up to somepony, and be like, 'Can we have sex?'. It's just... wrong. You catch my drift?"

She nodded. "So... does that mean me and my friends-"

"No! Unless you two are in love. Not family, not friends. Sex is something special that can only be special if both ponies are loving it. If you do it too much it won't be as special anymore."

Fluttershy nodded, her smile returning. "I understand. It's like food. If you eat it too much you'll grow tired of it, and you won't be as excited when eating it."

I smiled. "Exactly, except, more delicious."

She beamed.

We went through the Ponyville streets. The pony folk were not paying much attention to us.

Very soon, we arrived at Twilight's castle. We let ourselves in and called out "Twilight!" for a couple of seconds. The alicorn came walking from one of the halls on the right.

"Oh hey, you two! How did the experiment go?"

After 12 hours, Fluttershy finally went back to being shy. She blushed and hid her face behind her mane, all with a tiny smile on her face.

"It went great, Twi!" I said for the both of us. "Fluttershy even thinks I should do it with all of you."

"Oh?" Twilight looked at Fluttershy. "Is that true Flutters?"

I'm guessing the nickname brought the flush to her face, seeing that I said it more than her real name last night. "Y-you definitely should Twilight. I think you'd enjoy it." She said.

Twilight smiled. "I see." She turned to me. "Well, are you ready to work?"

I blinked. "Wait..." I looked around for a clock. Not seeing one, I turned back to Twilight. "It's noon already?!"

Twilight giggled. "Yup. You can take the day off if you want to. Spike would be more than happy to fully assist me."

I shook my head. "I'll still work, just let me eat break- lunch first."

"Alright. I'll be in the library if you need me." With that, Twilight walked off.

I turned and looked down at Fluttershy. "You want to come with me to Sugarcube Corner?"

"Oh, I would, but I need to tend to the animals. How about later in the afternoon?"

"Sure."

We both exited the building and went on different paths. As I walked towards Sugarcube Corner a thought came to my mind. "So these ponies can have pleasure by having sex. Interesting, I can't believe they never found this out." I looked forward, noticing my destination. "Now, who should be next? I still need to see if a stallion can get a boner." I shivered at the thought of having a stallion mount me. "But maybe I should get used to this with mares before any of that. It's been a long time since I've had sex, excluding Fluttershy." I held my chin in thought. "Maybe both... at the same time."

Author's Notes:

Suggestions are still open! Right now I'm still doing to mane six but soon we'll be going to others, so you can still recommend them as well!