Author's Notes:

A cloptional side-story to Dash of Humanity 2. Occurs after chapter five, and if you haven't read that chapter, this one won't make as much sense. Future chapters will focus on romantic clop, as he goes on dates, and finds true love... with bonus chapters on other wackier things, but for the most part, this story will be more about romantic love then fetish fuel.

Enjoy!

“I’m ready, Dawn.”

I lay on the couch as Twilight trotted over. She was ready to get to the bottom of why I had woken up as a mare today. I had no clue, and thus was about to be dragged down into her lab and experimented upon.

My arousal was so damn distracting that it made my desires physically manifest themselves into a voice in my head. Yep, looks like I had company again.

[Let’s get this show on the road!]

How could you possibly be excited to be a lab rat?

[Because I love restraints!]

Sweet Celestia, you’re like a horny school filly.

I rolled off the sofa and followed Twilight down into her laboratory. Memories of my first trip to her lab flooded back to me. I had been teleported out of a party and strapped down. She had thought that I was some hostile parasite trying to hurt Dash, or a changeling, and it had not been a fun experience.

She had improved the lighting, making it much easier to see. Machines and wires were visible everywhere, and Twilight had added some posters on the wall. She had the periodic table of elements, a conversion table for common weights and measures, and some posters with mathematical equations on them.

I had to laugh as I saw the conversion table. Even in Equestria, they had the Equine and Metric systems. One was full of out-dated units that were still taught to fillies and colts in school, and the other was built on logic and sound-math.

“What’s so funny?” Twilight asked.

“Oh, just reminded me of home.” I pointed to the posters. “Looks like some things never change.”

“Ah, well if you’ll just sit in this chair we’ll get started.” Twilight pointed to a padded chair that looked quite comfortable.

I climbed onto it and sat down. It was too big for me, and the arms and legs were at odd angles. I was about to ask about this when I heard something buckle around my hind legs. “Twilight?”

“Almost done.” She buckled two straps across my forelegs.

“Uh, why are you tying me down?”

“It’s for your own safety.”

[Oh yes, this is gonna be awesome!]

Shut up, Desire.

[Pfft, I know you’re enjoying it. You’re all wet!]

Twilight tightened up the straps and grabbed a set of wires off a table to my right. She tapped the button on one of the machines and began talking to it. “Experiment: unexplained transformation from stallion to mare. Subject age is. . . around twenty-five. Subject created through unusual circumstances. Hypothesis: regression of DNA or contact with magical artifact. Will monitor subject and test for various causes.”

“Uh, Twilight?” I asked. “Why are you talking to your machines?”

“Subject remains intelligent and curious of surroundings; no external signs of damage.” Twilight turned to face me. “I’m going to place EKG leads now to monitor heart activity, and EEG leads to monitor brain activity. I’ll need you to hold still for this.”

“Sure.” She buckled a strap around my head to hold it still regardless. “Hey! I said I’d hold still.”

“You need to remain completely still.”

I huffed, and lay there as she attached sticky leads to my chest and head. I couldn’t help but squirm against the restraints as she did so. Whatever had turned me into a female had also made me incredibly horny.

[Oh yeah, this is just what you desired, isn’t it? Tied up, like a naughty little mare, and used by a sexy unicorn.]

Come on, you need to learn the difference between fantasy and reality, Desire.

[And you need to stop denying that you have these thoughts and want these things, it’s only natural.]

There’s no place for me in Equestria as a horny mare.

“Subject’s brainwaves appear normal with spikes of delta and theta activity. Possible causes: internal monologue or dialogue. Heart Rate elevated, regular rhythm. Changes to P and T wave, however they do not present in more than three leads. Conclusion: artifacts.” Twilight walked around in front of me, eying me up like a slab of meat. “Subject sweating profusely, in the last stages of heat.”

As Twilight reminded me of this fact, I felt my pussy clench and tighten up. It seemed like months ago that I was in Dash’s body, but some things like the desire to get stuffed weren’t so quick to be forgotten.

“Twilight, help me out here… it’s not comfortable.”

“Given the subject’s agitated state it may be prudent to collect various samples and possibly relieve their needs to hold a rational conversation with them.”

“I’m right here, talk to me, not at that damn machine!” I struggled in the straps and felt myself wink, dribbling some fluids onto the cushion of the chair. It was getting worse by the second as the tight straps aroused me more and more.

“Subject agitated.” She turned to look me in the eyes. “It’s okay, I’m just being objective.” Twilight rubbed my foreleg to try and calm me. I was about to thank her when I felt a familiar pinch in my skin as she drew blood. “Samples drawn for analysis; will continue physical examination.”

“Physical analysis?”

The chair shifted, and I fell backwards. I found myself on my back with my hind legs in the air, spread apart. I could barely make out the tip of Twilight’s horn as she got a good look at my marehood.

“Subject’s labia appear pink, slightly leathery, healthy for a mare his—her age. Anus puckered, skin clean and tight.” I felt her rub a hoof down my ass cheek, causing my marehood to wink. “Healthy pink tissue within, clitoris normal size.”

“S-stop, that.” The more she teased me the worse it got, and I can hardly think now.

[Oh yes, this is perfect!]

Twilight took a short break to attach a few more machines to me, then pulled something off a table. I couldn’t see it, but I could hear it and it sounded metal.

A shiver shot up my spine as something cold was inserted into my vagina. The icy metal spread wide open against my inner folds and I struggled against the straps with all my might.

“Subject reacted strongly to the speculum, nerve endings—healthy. The cold metal should heat up quickly. No sign of the cervix yet. . .”

Twilight had a flashlight attached to a headband, and leaned in close to me. I could feel her breath on my marehood. “Whoa! Boundaries, Twilight! I—oooh, mmmm. . .”

“Subject prone to manual stimulation of clitoris. Inserting speculum further—aha! Cervix appears healthy.”

“I. . . I. . .” The manipulation had nearly brought me to orgasm. I was so horny, and she was inadvertently pushing me towards that edge.

I heard the snap of latex as she put gloves on her hooves, and began to poke and prod against my labia. Twilight moved the speculum around as she shone a light inside me and examined each inch. My muscles spasmed and threatened to snap the speculum in half if she kept this up much longer.

“Hmm, subject shows no sign of magical artifact. A thorough analysis of response to stimuli is needed.”

“What’s that mean? Oh Celestia, are you going to let me cum?” I panted and wiggled against the sweaty chair.

“Subject irrational and agitated; will measure response to electrical stimuli first.”

Twilight levitated a rubber gag designed to keep a patient from biting their tongue into my view. “No, wai—mmph!” She strapped it around my head, locking a square of rubber between my teeth and pinning my tongue down.

[Oh yes, this is so hot! Maybe she’ll fuck us with her horn!]

No, I don’t. . . I mean, maybe? Damn this heat, I can’t think straight!

[Who needs to think? Do what feels right!]

“Subject getting increasingly aroused and agitated. Administering low level current to measure brainwave activity.”

I felt every muscle in my body seize. It wasn’t painful, but it was damn uncomfortable to have every muscle contract at the same time. The pulse only lasted a second.

“Interesting.” Twilight scribbled some notes down. “Subject brain waves would suggest she is enjoying the experiment.”

Another jolt paralyzed my body and I felt my pussy lips separate as my inner folds winked out, revealing my clitoris as if it were a cock-magnet.

“Blood samples from quick analysis appear normal; to rule out DNA regression I will need further samples from the affected area.”

Twilight went back down between my legs. My muffled protests didn’t phase her from inserting something else inside of me.

I could tell it was her magic from the tingling, and the unnatural smoothness of it. The conjured phallic object expanded inside of my pussy until I felt it bump against the cervix and spread out.

She continued to increase the pressure until I could feel every inch of the construct inside me. I mumbled my protest between the moans of pleasure.

[Relax, this is what we needed, what you needed. A little sex never hurt anypony.]

But, I want. . . to be with. . . another pony?

[Who? Dash? Fluttershy? Soarin?]

With—

I moaned into the gag and spasmed as the magical cock in my pussy began vibrating. There was a bump in it that was grinding into my clitoris, yet the entire length of it was also sending electric energy through my nerves.

I must have bumped something, because the low voltage current started running through my body again. Every muscle in my body tensed, paralyzed, as Twilight masturbated me.

As the orgasm built I was powerless to move. My joy buzzer was on fire as the vibrations pounded it relentlessly. My pussy had tightened up, clenching the toy mercilessly and transmitting the motions even deeper into my abdomen.

The tips of my hooves tingled and warmth seeped into my legs. Both lungs burnt for lack of air and my vision was blurring as more and more pent up energy built inside of me. Whether she meant it or not, she was overloading every nerve in my body with pleasure.

I couldn’t take anymore. My throbbing pussy tightened up to the point that her magic faltered and vanished, as I exploded in orgasm. I felt the fluid spraying out of my marehood, my cum and urine alike being forced out by the tight muscles.

Twilight shrieked in horror, and I heard the sound of fluid landing in a glass. She had gotten more of a sample than she bargained for.

The low voltage current continued, and I continued to ride wave after wave of orgasm, my paralyzed body unable to resist. My lack of oxygen made the entire experience even better, until I found myself on the verge of blacking out.

Twilight flipped a switch to cut the current, looking around in confusion. “Subject seems to have hit one of the machines. Manual stimulation. . . did not go as planned. Note to self: always wear a face mask when working in close proximity to high pressure fluids. Prostatic fluid sample has been tainted with urine, but can still be tested if centrifuged in the lab. Subject appeared to enjoy the procedure immensely. . .”

She continued to take notes as if I wasn’t there, and most of me wasn’t either. I was already drifting off to take a nap, my body spent and exhausted. That was one of the best orgasms I’d ever had. The innocent little egghead was so focused on the scientific method, she hardly noticed the loopy grin on my face.