Trixie quickly stumbled back out into the room, giddy with delight, the thick two-headed dildo clutched in her hand. However, she froze the moment she looked up.

Starlight… or what had been Starlight… knelt in the middle of the room with enormous tits, a huge ass, extra-wide hips… and an enormous cock!

“Starlight! What did you—“

Her words stoped with a yelp when the large plant seed at her feet speared into her pussy with a perfect cock-shaped tendril.

Trixie just squeaked as it drove straight through her panties. Before she could think, it was pumping inside her deepest reaches with abandon.

“You’re going to get so slutty from this… we blessed it with an old spell,” Starlight said in an odd voice.

“Who’s… who’s… mmmmm…. Who’s we?” Trixie gasped as she staggered, only for two more vines to snap out and steady her feet. She could feel it begin to thicken inside of her.

Trixie knew she should be freaking out… shouldn’t she?

“Oh, Rarity from another plane,” Starlight hummed as she stroked that huge dick. “She’s possessed me and now I’m turning into some sex-crazed demoness.”

“You’re… ahhh… is that why… ahhhh… you… have a cock?” Trixie squeaked as a few more tendrils shot out around the doorframe, making the thickening pod even more stable.

“Yup! I coated that wind-vine in our new cum and now it’s going to corrupt you.”

“I… don’t think… this… this…” The pumping was going faster now. “T-this is a good idea…”

Despite her words, she couldn’t stop her hips from bucking with the thrusts of the wonderful plant.

“I have complete control over Starlight, darling,” Starlight said in a voice that was almost Rarity’s. “You don’t have much choice… and you’ll be changing your mind shortly…”

Trixie glanced down at the pod, only to see that the enormous cock-like protrusion currently buried in her pussy had a large bulge in it. And that bulge was quickly approaching Trixie.

“Starlight… I don’t… think I want to do this…” Trixie said hesitantly as tendrils slipped from the plant cock down the inside of the panties and up her stomach.

Starlight giggled. She sounded almost vapid! “I thought like that too! Then Rarity put a cock on me and it sorta just changed me… this will change you too!”

“No, really, I don’t want to be changed…” Trixie moaned as the thrusting became a vibration that sent shockwaves through her whole body.

Before Trixie knew it, she was suspended in the air in the doorframe, her legs and arms bound by tendrils of the corrupted wind-vine seed as that thick bulge crept even closer to her helpless sex.

“You will as soon as it happens, cutie!” Starlight giggled. “Then we’re gonna help corrupt the whole town into demon sluts! Won’t that be fun?”

Trixie gaped at Starlight, at the faintly glowing pink eyes and wondered if there was anything left of the girl she’d fallen in love with in there. Maybe there was some way—

The bulge hit and something exploded in her pussy. Seconds later, she realized what had exploded. First, her inhibitions had been destroyed. Second, her libido had been sent so high she could barely think about anything but fucking.

“You might be thinking of trying to save me,” Starlight’s sexy voice said from somewhere as Trixie’s body writhed in an orgasm that threatened to shatter her mind. “Silly Trixie, I’m way too corrupted by this hot demoness that controls me to be purified now! Nope! She’s completely rewritten me! I even talk different! Isn’t that great!?”

Trixie gurgled as she felt the plant continue to gush into her with fluids that were… were doing… things to her…

“By the Queen, it’s hot to see you being corrupted by that plant. I dunno exactly what she did to it, but she’s whispering all the naughty things we’ll be doing as soon as you’re done… oooh! She programmed me to love huge tits…”

Trixie thrashed in her bindings, her eyes rolling back in her head as her chest began to heat up. She felt vines and threads work under her little pink top and bra. She’d always been on the smaller size, but she’d never minded since—

She groaned loudly as the tits she’d always wanted—right?—finally came in. Enormous knockers bigger than her head. Perfect things that could do anything from sway before some hot mare’s eyes as Trixie tempted them to take her home to enjoy a thick cock between them to feed half of Ponyville. Her perfect enormous tits.

“No… wait…” she mumbled. “I don’t have… enormous…”

“Now, tell the truth, Trixie,” Starlight commanded.

“I have enormous tits,” Trixie said instantly, like the words leapt out of her mouth before she could think them.

“What do you think of your enormous tits?” Starlight cooed.

“I love my enormous tits!” Trixie cried. “They make me feel so slutty and hot!”

Trixie gasped, trying to sort her thoughts through the never-ending pounding on her pussy and the heat in her new tits.

“Do you like feeling slutty and hot, pet?”

Trixie tried to say no, but instead said, “Yes! So much! I can’t stop myself. I need to be a sex toy. I need cocks and pussies!”

“So you’re just like me!” Starlight cooed.

Trixie managed to focus on her girlfriend for a second. Where her tits even bigger? Was that fantastic-looking cock even thicker?

“Yes…” Trixie moaned as she felt the vines and tendrils get smaller and smaller as they covered her coat.

“Now, Trixie?” Starlight cooed. “This part’s important!”

Then Starlight was right in front of her. She leaned forward and all Trixie could do was not to explode right there with the feel of the huge cock, her huge tits, her thick lips and everything else that she loved about her girlfriend but seemed oddly new.

Starlight leaned forward and kissed Trixie hard. Their tongues intertwined and Starlight’s tongue was far longer than it should have been. It could wrap around her own tongue twice. In fact, she even tasted—

Starlight broke off and smiled. “There we go. That should help your corruption. Everything you just said is completely and totally true and you believe every word!”

Trixie came hard, the orgasm starting in her pussy and sending shockwaves of heat through her entire body. Until it reached her brain. When that happened, her body seemed to vanish. She was barely even Trixie. She was… just the pleasure. And pleasure didn’t care if she was being rewritten a little bit. It just wanted more. She got more with each rewrite of her memories and her mind as the words reshaped her thoughts and her past.

The Trixie that eventually came back to her body smiled lustily at Starlight.

“How do you feel, Trix?” Starlight cooed, her hands clapping in delight, obviously already knowing the answer.

“Like I always do, horny as hell and desperate for a cock or pussy!” Trixie said with a giggle. “This fuck plant you got me is amazing, but not as good as the real thing.”

“That’s okay!” Starlight replied. “It’s not done with you yet!”

“Oh, what’s it gonna do next?”

“Fuck you into a plantgirl made for sex.”

Trixie giggled again. “Yeah right. Really, what’s it gonna do?”

Starlight pointed down at the enormous seed. Trixie looked and gaped as the whole thing approached her naked pussy while it continued to fuck her.

“I’m just going to jerk off while you turn into a plant-based sex toy, okay?” Starlight asked.

“Sounds great…” Trixie replied dreamily.

The plant lowered her to the ground, but instead of fleeing, Trixie quickly ripped off what was left of her clothes, leaving herself naked with her plant lover. She spread her legs wide and smiled.

“You were right! I totally want this now!” Trixie cooed.

“Told you!”

Whatever response Trixie had was cut off when another thick cock buried itself between her lips. Trixie moaned and began to caress it as she felt her lips plump. Then her eyes crossed briefly as another cock took her from behind.

Starlight already looked ready to cum. Trixie looked down at her cock and reached for it like she’d done so many times before. She adored Starlight’s tasty cock. Their first date, it had been nearly impossible to keep her lips off of it!

Starlight happily provided her tool to Trixie, and Trixie, with years of experience with Starlight’s dick, expertly began to stroke her off. In seconds, Starlight was gasping and the cock was bursting over Trixie. Trixie groaned, feeling sexier than ever just as the seed reached her pussy.

Starlight giggled. “This is where you stop being a pony.”

Every single cock began to pour nectar into Trixie’s aching sex-corrupted body. Her eyes went wide as they changed from purple to green. Her mane quickly transformed from silver-blue to silver-green. She opened herself up to the nectar of the corrupted seed. Some part of her knew she was being corrupted. That part was drowned in images of sucking Starlight off.

It lasted only a few seconds before joining the rest of her in bliss.

She felt the plant begin to grow inside of her, through her body and coat, even though her mind and her breasts. Orgasm after orgasm crashed through her, memories shifted again and she felt herself melt away, only to grow into something perfect.

Author's Note

Trixie had some doubts, but that's okay~! Starlight and Rarity are there to help out~!