Twilight's Sexy Little Experiment

by Dreadnought

Rating: mature
Tags: Sex, Twilight Sparkle, Big Macintosh, Slice of Life, My Little Pony: Friendship is Magic, Romance, Rainbow Dash, Comedy, Rarity
Length: 1591

Twilight tries to figure out what she is. To solve this problem, she devises a little experiement.

Twilight tries to figure out if she's attracted to stallions or mares. She decides an experiment is in order. This won't turn out well....
***
My Little Pony: Friendship is Magic and all related content is owned by Hasbro.

Published 2017-09-24 20:30:07 UTC
Last updated 2017-09-24 20:30:07 UTC

Story

Author's Note

Thanks for checking out my story! I've mostly written stories rated Everyone, with a few rated Teen. And most of the genres have been tagged with Random, Comedy, Romance, or Drama. I decided a good way to improve as a writer is to expand my range. So, this is my first Mature story and, truth be told, likely the only one for a while. (I've got a lot of irons in my fire, and there's also 2nd Person, Anthro, Equestira Girls, etc. I still have to address) Hope you enjoy it!

I know it's not long, but it's about as much as I can write in my condition. Now I'm going to lie down and rest my eyes.

Dreadnought

Story

Twilight’s Sexy Little Experiment

Lyra and Bon Bon sat together on a park bench. The two mares gave each other a loving smile. They leaned in, then shared a long passionate kiss....

Whomp! Twilight slammed face-first into a cloud. She climbed out of the pony-shaped hole and flew to a nearby cloud.

“Twilight, what’s with you! I thought we were going for a nice flight!” said Rainbow Dash as she landed next to her friend.

“I was just a little distracted.”

“If you don’t watch where you’re flying, you’re going to get hurt. What was so important that you didn’t see the cloud in front of you?”

“I saw Lyra and Bon Bon down there kissing,” she explained embarrassed, pointing at the still pair below still in a romantic embrace.

“So?”

“Well, it takes some getting used to. Who knew they were – a couple?”

“Yeah. Nopony saw that coming,” her voice dripping with sarcasm.

“I’m sorry. I just don’t understand it.”

“What’s not to understand?”

“As part of my studies, I’ve spent time analyzing biology. Evolution led to two distinct sexes, with each a part to play in reproduction. It takes a mare and stallion to make a foal. But what is the point of a mare-mare pairing, or a stallion-stallion relationship for that matter?”

“This isn’t really my area. But they seem happy. Isn’t that good enough?”

“It’s just not something I’ve ever thought about before. I just always assumed that it would always be mares and stallions.”

***

Twilight lay in bed that night, thinking things over. She had always thought she would find a nice stallion someday. But Lyra and Bon Bon’s relationship had shaken her faith in that prediction. If mares could form a partnership with other mares, maybe she wasn’t meant to be with a stallion. Maybe she was meant to be with a mare. But how did know what she liked or who she was? This was all so new to her. Then, a thought struck her: Time for an experiment!

***

“Darling, is everything alright?”

“Sorry Rarity, I’m just a little distracted. I was just thinking about my new experiment,” apologized Twilight. She had been invited to Rarity’s boutique for tea, and instead had found her mind constantly returning to the previous day’s events.

“Oh, what is that? A new spell?” Rarity took a sip of her tea.

“No. I’m going to determine my sexual orientation.”

Pfffft! Rarity spit out her tea. Twilight sat, dripping with Rarity’s tea. “Sorry dear. But what did you say?”

Wiping her self off, Twilight explained, “I’m devising an experiment to help me understand my sexual preferences.”

“Oh. You’re serious.”

“Of course I’m serious.”

“Twilight, what is this all about?” asked Rarity.

“It started with Lyra and Bon Bon.”

“They do seem happy.”

“That’s just it. I always thought males and females were supposed to be together. This has shattered all my preconceived notions and assumptions I’ve been running off of. Maybe I’m not heterosexual. Maybe I’m really attracted to mares.”

“I’m not sure an experiment is the best route. But, tell me what you had in mind.”

“I’m going to find a stallion and have sex with him. Then I’m going to have sex with a mare. Finally, after comparing my notes and the data, I’ll determine whether I’m hetero or a lesbian.”

“Well, that’s – certainly one way to proceed.”

“I’m getting everything set up.”

Though not convinced about Twilight’s plan, Rarity offered, “Well, if you are looking for a mare, I can volunteer.”

“Rarity! You’re a lesbian!” said a shocked Twilight Sparkle.

Rarity laughed. “Of course not Twilight.” Twilight let out a sigh of relief that she hadn’t offended her friend. “I’m bisexual.”

“Bisexual?”

“Of course.”

“So, you can’t decide what you are?”

Rarity laughed again. “I don’t see why one should be limited to one gender or another. Sometimes I see stallions – sometimes mares. It’s the best of both worlds.”

“So, you wanted to volunteer?”

“I can imagine how uncomfortable this could be for you. It might help if the partners were friends.”

***

“Ya said ya wanted to talk to me?” came a familiar drawl. Big Mac stood with Twilight Sparkle alone in the barn of Sweet Apple Acres. “Twilight?” he prodded.

“Yes. Are you sure we’re alone? It’s rather – sensitive.”

“Applejack’s in town sellin’ apples, Apple Bloom is at school, an’ Granny is takin’ her nap. Only ones around are the pigs out in their pen.”

“Okay. It’s just, what I’m about to ask may be a bit – unusual.”

“’Kay?” he replied, hoping Twilight would get to the point. He did have fields to plow, and a lot of other chores to do, after all.

“I’m creating an experiment, and I need test subjects.”

“What kind of experiment?” he asked.

“It’s designed to help me understand my sexual orientation,” she stated matter-of-factly.

Big Mac stood there, not sure what to say. “Ah’m sorry, Ah don’t think Ah heard ya right. What was this experiment you were talkin’ ’bout?”

“It’s to help me determine whether I’m homo or heterosexual.”

Though he was pretty sure he knew the answer already, he still wanted clarification to make sure he wasn’t missing something, “And ya want me to?”

“I want you, as a male, to have sex with me.”

Big Mac stood there. Mare’s often teased males by playing hard to get. Even when females took the initiative, it often involved just asking for a date. Never had a mare been so – forward. It made him feel a little uncomfortable.

With the silence growing longer, Twilight tried to make him feel better about the offer. “If you’re worried about it taking time away from your work at Sweet Apple Acres, I am prepared to offer compensation.”

Just when he thought he had heard everything, Twilight had managed to surprise him yet again and lowered the bar. “What?”

“I’m willing to pay you for your participation.”

“Are ya sayin’ that Ah’ll be – yer prostitute?”

Twilight’s face went red. “No, no, no. It’s not like that at all. I’m just paying for your services.”

“Let me get this straight. You want me to have sex with you. Then you’re going to pay me for it?”

“Exactly.”

“Maybe Ah should get a dictionary.”

***

Big Mac sat uncomfortably on a couch. He didn’t know how he had let Twilight talk him into it. He refused payment, but that still didn’t make him feel any better about this whole “experiment.” Across from him sat Rarity, the other participant. Twilight stood and explained the process, “So, first I’m going to have sex with Big Mac. Then I’m going to have sex with Rarity. That should make things a lot clearer.”

“An’ if it doesn’t?” asked Big Mac, before he had thoroughly thought out his question. Why didn’t he keep his mouth shut?

“Well, we might need to perform multiple tests. If that doesn’t work, I’ll have to get more data points.”

“‘More data points?’” asked Rarity.

“I’ll have to increase the pool of test subjects. I already have scores of potential mares and a dozen stallions I can enlist. But I’m hoping the answer will be self-evident. So, shall we begin?” asked Twilight.

“Twilight!” yelled Starlight as she burst into the room.

“What Starlight?”

“I was teaching Trixie some new magic, and there’s been an accident. We need your help!”

Twilight turned to her test subjects. “Wait here. I’ll be back.”

Rarity and Big Mac gave each other uneasy glances.

***

Twilight climbed the long spiral staircase. Nopony was injured, but it took hours to clean up the mess. She was tired, and frustrated. Maybe she should postpone the experiment until the next day? She opened the door and froze.

Rarity and Big Mac were on the couch, in the middle of sex.

During her studies, Twilight had studied relationships. These included ancient manuscripts and Eastern texts. These often had images, some graphic. But nothing had prepared her for this. Maybe it was being real-life, or it being in motion. Or maybe the smell of sex filling the air. Or the sounds.

Rarity yelled, “Eeyup! Eeyup! Eeyup!”

Big Mac paused and looked at Rarity, “Darling.” His affection returned with a passionate kiss.

Suddenly snapping back to the moment, Twilight stepped back and closed the door to give the pair some privacy. She realized that, having witnessed such a display, she felt intensely warm and, in fact, turned on. Well, that answered that question: Heterosexual.

Though it did not go as planned, she smiled knowing her experiment yielded an acceptable answer. But then, a terrible thought entered her mind: Heterosexual what? A heterosexual mare? Or a heterosexual stallion? Time for another experiment! Twilight headed to the library, determined to study gender-bending magic.