Author's Note

The sex starts here, and pretty much goes through the rest of the story. The foalcon starts in the next chapter, but I wanted to "test drive" a personal favorite ship of mine: TwiDash! Hope y'all enjoy!

A New Dash

“You…you…you gave me a dick!” Dash crudely shouted, much to Twilight’s chagrin. She wished that the cyan pony wouldn’t have made such a racket about the entire situation. After all, Princess Celestia had made her swear never to use this particular transformation spell unless it was in a dire situation. As such, the situation seemed dire enough, but she was still unsure of how her mentor would react to it were she to find out about it. If either Starlight or Spike heard Dash’s shriek of disbelief, they might reveal it to her, and then both of the offending parties might be in big trouble.

“Yes, I did, now will you shut up?!” The purple princess whispered harshly.

“But I don’t wanna be a fucking stallion!”

“Will you stop swearing for two seconds?!” Twilight asked, “if you’ll listen, I’ll explain everything. You said you wanted Scootaloo to notice you and, as disgusting as I find your desires to be, I’ve created a way where you’ll be noticed. Both by her, and everypony else!”

Rainbow Dash felt her anger boil against her friend. It seemed as if she had advertently created this magic penis just to get back at her for her own sexual wants and needs. She felt betrayed by Twilight, and her feathers involuntarily ruffled with rage. She gave the purple mare an intense look, one hardened by feelings of mistrust and backhandedness. She suddenly hated Twilight. Yes, she wanted to be noticed, but not by everypony…just by one. The filly she held so close to her heart. With her new appendage, she felt that everypony would be gawking at her. It would dispel her “cool” factor amongst the young ponies of Ponyville, and would make her seem odd at best, and monstrous at worst.

“You…are the worst friend ever!” She erupted, “How DARE you give me this THING!”

“Ah-ah-ah,” Twilight said, putting a hoof over Dash’s lips, “you don’t get to complain. You drug me into this, and all for your lust after a filly!”

“It’s not lust! It’s love, Twilight!” Dash shouted, “all I wanted was for you to make me nicer looking or give me some kind of passionate sex drive that only she would figure out. I never asked for a penis!”

“Well, too bad,” Twilight said firmly, “now, you’ve got one, and you’ve got 48 hours to do whatever you need to do with it. After that, it’s gonna disappear, and I’m not gonna help you again. Just go. Go and get your disgusting, malicious fix.”

“I won’t forget this, Twilight,” Dash growled, “and one day, I’ll make you pay.”

She suddenly grabbed Twilight and shoved her against the wall. Twilight instinctively fired up her horn, ready to defend herself at a moment’s notice. She knew Dash was in heat, she just didn’t know that it was this horrifically bad. She wanted to salvage whatever was left of their friendship, but she was unsure of how to do so. Her mind whirled as Dash licked her lips, noticing the curvature that she held up against the wall.

“I never noticed just how fucking beautiful you are,” she said in a husky voice as her glands went into complete overdrive, pumping out a sweet scent and clogging Twilight’s nasal passages. “Mm…you might be a good appetizer before the main course.”

“Dash, don’t do something you’ll regret,” Twilight warned, “my horn can produce magic that will hurt you. I don’t wanna hurt you!”

“You already have!” Dash said, slamming Twilight down onto the Cutie Map table, “and now I’m gonna take what’s rightfully mine.”

Twilight saw the way Dash was visually scraping up and down her body. She knew that her friend was mentally molesting her, looking into all of her most private orifices and peeling back her layers of defense. She suddenly felt her own heat flare up, and she noticed Dash’s new bodily toy slowly slithering its way out of the sheath. It was the absolutely perfect length, and she couldn’t fight her most primitive feelings. She wanted that inside of her, and logic and love took leave of her. They were replaced by a very powerful lust, and she looked up at Dash.

“If you’ve got the balls to fuck me,” she said as her language turned very dirty, “then go right ahead. Bang that pussy, bitch!”

Dash smiled as the words left the princess’s mouth, and she shoved herself inside Twilight with reckless abandon. Her willing victim screamed as she felt her sturdy girth rip apart her lower lips and plow through her insides. The thrusts were violent and painful, but Twilight loved every single second of it. She thought she was going to burst multiple times, but she held everything in. Dash even began swatting at her vagina with a hoof, causing her to cry out as pain shot through every pore of her body. But she wanted it.

“YES! YES!” She squealed as Dash went faster and faster, “FUCK ME, WHORE! I’VE BEEN SUCH A BAD LITTLE FILLY! I’VE DISOBEYED CELESTIA, AND I NEED TO BE PUNISHED! PLEASE, FUCK ME, DASHIE! FUCK ME!”

Twilight’s screams created a monster inside Dash, and the cyan Pegasus began thrusting harder than she ever had before. She was going to make Twilight hers, and there was nothing the poor purple pony could do. The fact that Twilight had revealed that, for reasons unknown to Dash, she had disobeyed Celestia caused the penetrating pony to become even harder. Her magically created penis ripped Twilight in half, causing a small trickle of blood to flow. Dash saw this and became concerned for her partner’s safety, but when she notified Twilight, she was met with screams for more.

So Dash smiled wickedly and plowed into Twilight all the way up to her hilt, trying desperately to pull every single drop of sweat out of her brow and every last bit of vaginal liquid from her vulva. Twilight’s holes pulsed with every single wonderful thrust, and both ponies shouted and squealed their pleasure to the heavens. Twilight suddenly bent upwards and began smacking Dash on the face, cursing at her and becoming a monster herself. Their masochistic display went on for a few more minutes before they orgasmed simultaneously, blowing all of their liquids into the appropriate places.

Dash yanked herself out of Twilight and collapsed on top of the princess. Both ponies panted heavily, and the Pegasus suddenly became very thankful for her new body part. She was sure that Scootaloo would love it, were the filly to agree to sleep with her. “You’re such a good little bitch, Twily,” Dash cooed as she ran a hoof through her friend’s mane, “I loved every single second of that. But…is your pussy okay?”

Twilight smiled and used her magic to heal herself. “For that dick, I’ll withstand a little pain.”