[0:53]*Pet Princess Luna curses in a very un-princess tone under her breathe as she trots outside. It's dawn and the sun is irritating to her, and she cannot yet go to bed. No no, She simply couldn't resist making bets with Celestia. And now where had that got her? It had gotten her watering Celestia's weird plants that she got from only the stars could know where. Luna gave her horn a sharp spark of magic and watched water shoot from it, filling up a small watering can. Magically raising the can, Luna turned towards Celestia's greenhouses and opened the door, stepping inside and closing it as she took stock of her sister's undoubtedly strange collection.
[0:54]Stellar Flux: (oh, anthro form, right? or pony form?)
[0:54]Pet Princess Luna: (Anthro is fine if you prefer that.)
[0:55]Stellar Flux: (it would, anthro to feral would be more interesting)
[0:55]Pet Princess Luna: (https://static.f-list.net/images/charimage/7193161.png )
[0:57]*Stellar Flux called out suddenly, "Oh, hello there. I see that you're the one that was promised to us by the large white pony." The speaker was hidden from the alicorn, but all the plants were shivering like they were alive.

"Yes... finally, she has offered the third that she promises us. Now we can become complete," said another voice, a more raspy one compared to the first.
[0:58]*Pet Princess Luna drops the watering can and scrambles to catch it with her hands. She manages to spill part of the water onto the ground, but keeps most of it inside. Plants don't talk. Surely-- surely she was-- she was being absolutely too jumpy for this room. Nevertheless...

"Present Thyself, S-speaker."
[1:01]*Stellar Flux walked out of the bushes, showing a nude, mare, albeit instead of a normal mare, it was one where its head was an open purple lily with a needle in the center, on a blue nude body that appeared to be made out of some kind of plant fiber. From Luna's other side, another mare walked out, this one being of similar form, except having a dark purple coat and a lily of blue and silver petals.

"No need to be anxious, we mean you no harm," the blue plant girl stated.
[1:04]*Pet Princess Luna drops the watering can. "Aiee!"

Princess Luna jumps, glancing between the two nude mares. How absolutely -- how absolutely lewd! But not only that, -- "What manner of ponies /art/ thou?" Luna stares at the mares, looking at their plant fiber bodies, to their flowers. They weren't bad looking, but why naked? Even Luna had the sense to wear /some/ clothing, even if she had little on indeed.
[1:06]*Stellar Flux The purple mare chuckled as she answered, "We are plant ponies, a special breed of ponies that is normally created when a normal pony eats a very special fruit," as she walked over to a rather colorful tree, plucking some kind of oval fruit that was unlike anything Luna has ever seen. "Want to try some? It feels so good to be a plant, to feel your head open to the air."
[1:08]*Pet Princess Luna Luna accepts the fruit, glancing at it with a raised eyebrow before looking back up at the plant pony.
"Truly, my sister hath planned this as a prank? A plant pony?"

Luna trusted Celestia enough to believe this all a practical joke. She'd also become accostomed to these kinds of tricks. If she /didn't/ eat the fruit, then something bad was going to happen. But Luna was smarter than that.
[1:09]*Pet Princess Luna takes a big bite out of the fruit, checking for it's taste.
[1:10]*Stellar Flux leaned over, her petals shivering as Luna's body started to heat up with arousal suddenly. The purple one, on the other hoof, said, "You may want to strip your clothes, it would only get in the way," as Luna's body start to stiffen a bit, starting with the legs first.
[1:10]Nightmare Dizty Doo connected.
[1:12]*Pet Princess Luna finishes off the fruit, dropping whatever pit or stem is left on the ground and trying to give her legs a move before looking down at them-- a little worried.
"Is it supposed to make my muscles feel so stiff?" Luna is hesitant to remove her clothes, and takes time to consider if she should or not. It didn't seem like a good idea, but the plant mare didn't seem to have any ill will, either.
[1:14]*Stellar Flux laughed as she said, "It's because your body is converting to a form similar to ours," as the effects run up her body, her bones in her legs feeling like they have disappeared, when in reality her legs have instead converted into a cross with a tree branch and a vine tentacle, though still in the form of legs with her coloration still present.
[1:16]Blue Angel connected.
[1:16]*Pet Princess Luna feels her body give strong tinges of arousal as the changes creep towards her upper thighs and hips. Luna's heart is beating fast now as she looks down, trying to move her legs around as best she can.
Almost in spite of herself. she unties lace on her panties, letting them fall to the ground as she inspects her lower body...

Half in horror, half in... well, she wasn't truly sure.
[1:18]*Stellar Flux walked over to the alicorn, presses her nude body against Luna's right side as she groped one of Luna's breasts, causing her pleasure as she felt her inwards turning into just pure plant fibers, as she said, "Relax, you'll love this. Trust us, we enjoy it so far already," as her companion came over, hugging Luna's left in turn.
[1:20]*Pet Princess Luna tries to wiggle out from between the two of them, feeling her bra slipping off as they hug onto her sides.

"W-Wait, but I can't be a plant! I'm the Princess of the Night! I-- Oh-- oh stars--"

Luna looks down at her body and sees her hips and belly become nice, strong plant fiber. There aren't any nerves to feel it, but Luna intueitively knows her systems are changing. Pretty soon she won't even have a heartbeat or a pulse as a pony would-- no, she'll be more like a plant, circulating nutrients, sunlight, and carbon dioxide!
[1:20]*Pet Princess Luna lets out a yelp "H-Help!"