Author's Note

This chapter contains Age Regression, Age Progression, Semi Non-con and some foul language, You Have Been Warned

A Change of Roles...

Spike felt more than heard the growl in his throat and chest as he advanced toward Twilight as she hastily backed away from the angry Drake. A flap of his wings, and Spike was airborne and rapidly closing on his Alicorn sister, ramming into her gut as she tried to turn and flee and knocking her to the floor while he sat on her belly.

“Spike, wait! I can fix this! I know I can!” The lavender Alicorn may have been knocked off her hooves by Spike’s charge, but she DID still have Earth Pony strength on her side. Her attempts to get him off of her though were met by a single counter. Spike grabbed her by the mane and throat, snarling in her face. Her body instantly locked into what Spike recognized as both a fear response to a predator, as well as submission to a dominant Stallion’s neck bite. As such, his snarl quickly turned into an amused growl.

“Wow Twi, I cant believe you’re that quick to turn into a submissive little breeding Mare...” the Latex Dragon gave a short tug to her mane to enjoy the look that rolled over her face again. “You know what? I think that since you took advantage of me, I’ll take advantage of you for a bit. Only fair play right?” Spike’s hand moved from Twilight’s throat to the collar of her labcoat, his claws easily tearing through the thin cotton despite being rubber. Ignoring her weak attempts at protest.

“Spike...”

“Shut it! You didnt give me a choice or a say in if I helped you in this harebrained spell of yours, so you don’t get a choice or a say either...” Moments later, the Alicorn’s modest lavender breasts spilled from their cotton prison. Spike didn’t stop there though, his claws kept on parting the fabric, exposing more of his sister’s body to his suddenly hungry gaze, even when he was forced to climb off her belly to keep going. Through it all, he kept a firm grip on the Mare’s mane to keep her docile while his free hand moved to squeeze and massage her right breast, digging his fingers into the soft flesh. Twilight’s whimpers spurred him further, and he felt himself getting hard again. “Yeah, yeah you like that don’t you Twibitch? you’re nothing but a little slut mare who wants to be bred. Well, you’re gonna get your wish alright...and you’re not gonna have any choice about it.”

Twilight shuddered a little as he spoke, the hand not griping her mane moving to drag his claws lightly over her belly while he got into position, his ready and willing rod prodding at her pussy, the scent of her growing arousal at being so thoroughly helpless to stop him driving him to press further. Her petals parting before his Dragonhood and poking at the final barrier. Spike had never known Twilight to stop studying long enough to even have much of a social life, let alone a date, and the evidence of being that much of a shut in was right before his dick, Twilight’s virginity. A single, sharp buck of his hips, and he was in. He largely ignored Twilight’s whinny of pain and loss, as it wasn’t important, what was important though was that he was now deep in Twilight Sparkle’s cunny and ready to take what he wanted from that warm tightness that now surrounded his dick on all sides.

“How’s that feel Twibitch? You feel my dick in you? All deep inside? Oh yeah, take it...take it Bitch! You fucking take it!” Spike only gave her a few moments before he started to move, driving his cock deeper into the Mare’s body and starting to really fuck her, not even giving much thought to what he was saying as it just seemed to flow naturally. Almost instantly, possibly in response to his words, Twilight became a moaning mess as he took his pleasure from her...and more than that, he felt a measure of energy draining into him through his cock in Twilight’s cunt. He greedily drew that energy to his core, allowing his body to grow with his every thrust into the Mare as her own body began to slowly shrink… ‘No, not shrink, Twilight is actually getting younger...I’m stealing her age from her!’ Spike grinned as his body continued to mature the more he fucked his sister, his pleasure only growing at the realization. Twilight, meanwhile, looked as if she was getting close to that bliss he felt before. Her wings were flared, her horn starting to spark, and her hands and hooves were trying to find grip on the castle floor.

As their bodies started to reach equal size, Spike felt a sudden need and lunged forward, locking his jaws around his sister’s horn as she suddenly lost control of her magic. The feeling of even more energy, the magical energy of an Alicorn even, flowing down his throat and into his core to join the rest he was stealing from Twilight drove him to drink even more deeply of her power and fuck her all the harder. She was getting so young now...and so deliciously tight! With a final hard thrust, he felt his balls and gut clench and he emptied himself into her.

Both of them stayed locked in position for several moments before Spike was able to think clearly again and take stock of the situation. Twilight was still impaled on his cock, though now a Filly of maybe ten, her belly swollen with the amount of cum he had packed into her. With a grin, Spike slowly pulled out of her, allowing a flood of fluids to escape as soon as her tiny, but well fucked and stretched, hole was unplugged. The lavender Alicorn Filly letting out noises of discomfort until her belly finally shank back to something that looks a little more normal as Spike admired his new form, at least six feet tall if not more, his wings grown out to an impressive eleven foot wing span, and his over all body being much more muscular and dangerous looking...if still made from shiny Latex rubber.

“Heh, I think I’m gonna like this...”