The Sub, The Dom, The Emo, The Psycho, The Sorceress, And You

You arrive at the library at the crack of dawn by request of the resident librarian. Seems she has something to try out that she’d prefer you to witness and not a stallion or mare. What it is, you have no idea, but you knock on the door and wait patiently. It doesn’t take long for the door to unlock and open.

“Hey, there,” Twilight says with a smile, stepping aside for you. “Glad you came. I need some backup.” She is currently wearing a purple sweater and shorts.

“Backup?” You ask her as you enter. “I can’t do magic. You know that, right?”

“That isn’t an issue,” The unicorn says as she closed and locked the door. “I have some spells I wanna practice that, uh... may arouse a male. And, stallions can’t control their urges that well. And, I don’t wanna ask my friends, because... well, it’s a little embarrassing. Besides, I trust you.”

You walk up to the table in the center of the room with a probably fake golden statue of a horse’s head. Turning to face the mare, you place your hands on the table and lean back against it. “What kind of spells?” You ask, wondering what sort of spells would arouse a stallion and embarrass her in front of her friends.

“Um...” Twilight begins, twirling a strand of hair with her finger. “Body modifications...”

“Body modifications?” You ask with a light chuckle. “What, like... breast enlargement? Butt enlargement? That sort of thing?”

Twilight nods with a blush. “Among other things, yes... But, I think I’ll start with simple, uh... breast spells.”

“Alright,” you say, before thinking about something. “And, why do you need a witness?” You ask her. “Can’t you do it in front of a mirror? Or just look down?”

“Well, I, uh...” Twilight stammered as she avoided eye contact. “I need to make sure it looks... attractive. You know? Not too big, or...”

"Right..." you say, thinking you understand now. "You know, you're... already attractive, Twilight."

This makes her blush harder. "U-Uh... Heh... Thank you, but... I'm just trying to check this area of magic off the list. Perfecting this requires outside opinion."

"Well, if it's for science," you say with a smile. "Ready when you are."

"Okay," Twilight said, exhaling sharply as she grabbed the bottom of her sweater, before halting to a stop. "Uhhh... I thought I was prepared for this."

You notice her nervousness and smile lightly. "We're both friends, right?" You ask. "I understand this may be easier if I was female, too, but..."

"I actually think it's better that you're male," she tells you, her face still red. "But, it doesn't matter right now. You're male and you're the best choice."

"Then, just rip it off," you say, egging her on. "Like a band-aid."

"Right," Twilight said with a determined look. "I'm gonna just... rip it off."

"Pull it right off your body!" You cheer, chuckling at her adorable determination.

"I'm gonna strip!" She yells, quickly pulling her shirt off. Her smile fades a little as she lowers her arms, her C-cups on display. "Well, no going back now," she says, dropping her shirt as her arms currently block her nipples from view. "Um... So, I-I guess I should... start..." she stammers, her blush returning.

You nod and give her a smile. "Just relax, Twilight. You won't be able to concentrate on your spells if you aren't focused."

"Right," the mare confirms with a nod, sounding slightly more determined. "Okay, so..." She then looks down at her breasts. "Focus..." She closes her eyes and lights up her horn. You see her visibly slow her breathing back down to normal.

You watch in amazement as her breasts grow 2 cup sizes, making the mare stumbled forward a little as she opens her eyes. Smiling, she pulls her arms away and cups her tits.

“Do they feel natural?” You ask her, watching the unicorn fondle herself.

“They actually do,” Twilight says as she smiles at you. “Now, I need a male’s opinion.” Her blush returns. “Could you, maybe, touch them? Let me know if they’re... too big? I-It doesn’t mean anything! It’s just... um...”

“For... science?” You ask her.

“Yes!” The mare exclaims. “Science.”

You leave the table and slowly approach her, giving her time to cover up should she change her mind. When you step up to her, she puts her hands behind her back, waiting for you. You slowly lift your hands before placing them on the round mounds. You can also feel her nipples poking your palms. When you squeeze, you force a moan out of the mare.

“Oh, uh... sorry,” you apologize.

“No, no, i-it’s not a problem,” Twilight reassures you. “But... how do they feel?”

“Could be too big,” you say, lowering your hands. “Though I don’t normally feel up boobs like this.”

“Oh?” Twilight asks. “How do you do it?”

You hesitate before moving behind her. Reaching around, you cup her tits and feel their weight. “A lot of times, a male fondles them like this. Which is why it’s important they’re not too big.”

“A-Ah,” the mare gasps. “And... a-are they too big?”

You run your hands up the breasts and then back down to the underside. “I’d say you’re pushing it. Though, to compare, could you make them your normal size?”

“Huh?” The mare asks, clearly lost in the feeling of having her breasts massaged. “Oh. Sure.”

Her horn lights up again before you feel her breasts shrink back down to C’s. You smile and continue to rub and squeeze them.

“This is better,” you say, gripping her tits. “They fill the palm nicely and aren’t too overwhelming. So, I’d say your ability to enlarge them is perfect. But, if you’re looking for the more attractive look, it’s this.”

Twilight bites her knuckle as her cheeks become beet red. You can hear her exhaling repeatedly through her nose as if she's hiding moans. You start to wonder if you should stop as this starts to feel more like pleasure than science. Especially when she leans back against you. Was this what she really wanted all along? Or, was this just how things turned out. As you're about to pull away, the unicorn lets out a muffled squeal into her knuckle and you hear something trickling. Freezing up, you move your hands to her hips. After a few more seconds, the unicorn gasps and starts to softly stammer incoherently.

"Twilight?" You ask, wanting to make sure she's okay. "If you, you know... It's okay."

"N-No, it's not," Twilight stammered, hugging herself and rubbing her thighs together. "I-It happened in front of someone else... I-I had no control, I..."

You quickly and gently spin her around to face you, her watery eyes staring into yours. Without thinking, you move your right hand to her cheek and lean in to kiss her on the lips. When your skin touches hers, you hear her let out a soft gasp, but she doesn't pull away. You pull back slowly to look her in the eyes again.

"What?" She simply asks with a sniffle.

"Looked like you needed it," you tell her with a light smile, keeping your hand on her cheek. "Besides, don't you think becoming a legit couple would make this less awkward?"

"Wh-What?" She stammers with wide-eyes. "L-Like a date? You wanna date me?"

"Of course," you reply with a chuckle, moving your right hand back to her hip. "You're cute and fun and clearly need some help with your more... intimate magic."

"Oh, gosh," Twilight mutters, holding her right cheek. "I've read books about this sort of thing but none of them ever said what happens now... What does happen now? Maybe, I just need to find the right book," she concludes, about to leave before you gently grab her wrist, making her stop.

"No books, Twilight," you tell her with a smile. "What does Twilight want to do?"

The mare thinks for a moment before turning to you. "Um... I think I'd... like to try."

Stepping up to her, you hold her close. "See? You didn't need a book to tell you that."

She lets out a sheepish chuckle. "I guess some things you just have to learn as you go." She then looks down and spreads her legs. "Oh, right, I... should probably change."

"Change?" You ask. "Didn't you wanna practice a butt enlargement spell?"

The mare quickly looks up at you with a light blush, but smiles and nods. "That was on the list, yes." She slowly grips her shorts as she keeps her eyes on you. "Are we really dating now?"

You nod with a chuckle. "Of course. Why?"

The mare smirks a little. "Because, if I'm going to strip for you... then you're going to let me attempt a penis enlargement spell on you."

Returning her smirk, you chuckle. "Fair enough."

The mare's smirk fades into a light smile as she squats down, pulling her pants down with her. She hesitates before slowly standing up, leaving her shorts on the floor. When she stands fully nude, she holds her hands behind her back with a blush. "Um... Well?"

"Hmm?" You ask, before realizing what she was asking. "Oh! You look... stunning."

The mare smiles shyly and looks down at her shorts, the insides soaked with her juices. Kicking them aside, she walks up to you. "So... how do you like to hold a butt?"

What a weird way to phrase the question, but you know what she's asking you. Reaching around her, you hold her both with hands. Squeezing gently, you make her moan softly. "Feels nice," you say. "Just bubbly enough to get a firm grip on it. And, I bet I can make it shake with a couple smacks."

"Oh, dear," Twilight chuckles nervously. "Let's not get ahead of ourselves." She then leans into you and closes her eyes, her horn lighting up. "Mmm... It's actually really easy to concentrate like this," she says softly, before you feel her butt slowly grow into a thicc ass.

"Holy shit," you mutter, feeling her wide hips and super bubbly ass. It had no wrinkles and kept a perfect shape. "Well, if I was into gigantic butts, that's a winner, alright."

"Luckily for you, I can make it any size you want," Twilight points out, reminding you that you could have her change her appearance for some pretty steamy role-plays.

Nuzzling her neck, you exhale slowly. "Noted. Now, change it back to it's original, sexy self."

The mare chuckles breathily into your shoulder before you feel her butt shrink back down to normal. "Two for two. You know what's next."

"Yep," you say, giving her butt a couple pats before taking a few steps back. Ignoring your shirt, you go right to your pants. Grabbing them, you pull them down to your feet and stand back up, kicking them off. You see the mare's eyes go to the obvious bulge in your boxers. Smiling at her, your rod twitches as you pull your boxers down, letting them drop to the floor as your member springs free.

"Oh, my," Twilight says, putting a fist to her mouth. "Mmm... That's a penis, alright."

You chuckle at her shyness and hold out your arms. "Come on. Enlarge it."

"Oh, why am I more nervous now than when I was getting naked?" Twilight asks, mainly asking herself. "Um..." She then takes a deep breath and lights up her horn. "It's just a penis," she tells herself aloud. "Just your new... boyfriend's... penis." Her right hand moves to her heart in an attempt to calm the rapid beating. "Okay..." Her horn glows brighter and you feel your rod becoming heavier.

Looking down, you see that you now have a cock the size of a stallion. "Oh, damn. I'm as big as a horse now."

"Us, mares, can handle that," Twilight pointed out. "Or so I'm told. Though, I'm still concerned about the... length."

"Talk of sex?" You ask her. "Now, who's taking it a little too far?"

She just eyes you before her eyes return to your rod. "Hmm... Well, I would need to test it out... make sure it ejaculates properly... It won't be getting rock hard like it... was... Stallions don't really get hard. Again, as I'm told. By friends and my... books."

"Still, it's pretty cool," you say as you feel your nuts. "My balls are bigger, too."

"Yes," Twilight says as she watches you touch yourself. "Stallions have larger testicles, allowing them to have larger... outputs..."

"Bigger orgasms?" You ask her. "Produces more cum?"

"Semen, yes," the mare corrects, seemingly still too nervous and shy to use dirty talk. "More semen. Mares need a lot to get pregnant."

"Am I... fertile now?" You ask her.

She shakes her head. "Your DNA is the same. Incompatible species. You'll just..."

"Cum a lot?" You ask.

Her blush deepens. "Produce more semen..." Her eyes then focus on your rod. "Um... Can you masturbate... for me?" She asks you. "S-So, I can see if it works?"

You smile and nod, gripping your cock with both hands and stroking it. "I'll get you to talk dirty, soon."

She shoots you a playful smirk before looking serious as she watches you jerk off. She starts to lightly rub her neck and squeeze her thighs together. She's definitely getting turned on. You stroke a little faster with your right hand and cup your balls with your left hand. Tilting your head forward, you spit on your shaft and keep stroking. The addition of the saliva helps lube your dick so your hand slides quicker and easier. It's even giving it a nice sheen.

A couple more minutes pass before you work yourself to an orgasm. Having a sexy, naked mare standing in front of you is really helping. "I'm about to..." you start to warn, before you start cumming everywhere. You hear a bunch splatter on the floor as you also hear Twilight gasp. Looking at her, you chuckle a little. "Oops." You had gotten her directly in the chest. As your cock finishes cumming, you let go an let it shoot the remainder of its load directly at the floor. "Probably should have out something down..."

Twilight looks down at her chest and shudders. "I-It's so warm..." she says. "This is... semen?" To your surprise, you watch her wipe some off with her finger before tasting it. "Hmm... Thick consistency. Slightly salty. Strong smell. I should hate it, but... why don't I?" She asks herself, before looking at you. "Well, uh... Success, I guess," she says, before looking at the floor. "Oh, boy..."

"Know any spells?" You ask her.

She lets out a sigh and rubs her forehead. "I could find something." She then stares at you. "Um... So, that's all the spells I was ready to try out..." She looks at your rod again. "But, um... I'd like to learn more about that."

You look at your dick and chuckle. "Alright," you say, before looking up at her. "Where do you... want to go?"

She thinks for a moment before looking around at the windows, making sure they're all closed. They are. "Make sure that door's locked. We'll do it right here," she says with a blush.