"Oh, why did he have to wander off to the Everfree Forest of all places?"

Fluttershy was swiftly flying towards this big and scary area that any sane pony would avoid at all cost. The Everfree was very dangerous, but despite Fluttershy's timid looks and behavior, the soft-spoken pegasus was far from helpless, especially when one of her animal friends was in danger. Nearby birds confirmed that Mr. Tweetums had gone this way a short while ago, so he couldn't be far, considering he couldn't fly very well with his misshapen wing.

After a few minutes of flying through a labyrinth of trees, Fluttershy spotted something blue among a sea of greens and browns. She quickly made her way to a vine-entangled tree, landing on a thick branch, startling a blue jay perched nearby.

"There you are! I'm very disappointed with you, mister. I have half a mind to start calling you just 'Tweetums' from now on."
"..."
"This is not a good reason to wander off and you know it!"
"...!!"
"Huh, what's that? There is someth..."

"EEEEP!"

A group of twisted green vines quickly wrapped around the pegasus' body and flipped her on her back, then bound all her limbs, wings included. Another group gripped her hind legs, lifting them skyward. The vines were supple, but strong and effectively restricted their captive's movements. Fluttershy fought to escape, but the harder she struggled, the tighter the strange plant constricted around her. She cried, panicked:

"Mr. Tweetums, get back to the cottage, find Angel!"

The frightened pegasus caught a glimpse of her friend flying away. At least he's safe. She struggled to break free from her living prison once more, but strength quickly left her and she slumped in her bindings.

At this moment, Fluttershy realized that vines wrapped around her hindquarters were gently massaging her butt and cutie mark, eliciting an involuntary sound of pleasure from the trapped pony.

Mmm, this actually feels really nice...

This kind of treatment was unexpected from something originating from the Everfree Forest. Fluttershy was confused, but felt her mind and body slowly relaxing, despite this highly unusual situation. However, the unexpected moment of reverie came to an abrupt stop, when a small vine creeped up her body, going between her hoisted legs.

"Huh?"

The vine reached its goal and started rubbing Fluttershy's exposed pussy, teasingly brushing against her clit.

"O...oh my..."

A flurry of emotions overcame the trapped pony. Shame and embarrassment appeared among them, once she realized what compromising position she was in, but these emotions were quickly replaced by arousal. It didn't take long before the pegasus started feeling quite restless, wings fighting against their bindings, trying to spread wide open. This was bad. The agitated pony was at the mercy of this alien predator.

Suddenly, Fluttershy felt something slimy poke at her second most private place. She was mortified and blushed furiously, trying to move her tail or wiggle her legs, but to no avail. The pegasus was helpless against this intrusion. In her panicked state, she stammered:

"What... what are you doing? This is not...!"

To her horror, the pressure steadily increased and she felt her butt giving in to the intruder, which was slipping inside and quickly pushing deeper and deeper.

"EEEEEEEEP!"

It had to be just a thick vine, but felt more like a slimy tentacle covered in bumps. It moved around Fluttershy's insides, poking and prodding at its surroundings, stimulating the pegasus in a way she had never felt before. Being violated in such a perverse way, unable to do anything, it felt strangely... exciting? The mare shut her eyes to focus on these new feelings. Her pussy started winking rapidly, yearning for more stimulation. A fireplace burning between her legs became a roaring furnace. The immobilized pony began shaking uncontrollably in her restraints.

Fluttershy came hard, her sphincter clenching tightly around the thick vine and her wing muscles painfully struggling against their bindings, trying to break free. She threw her head back, eyes closed tightly, and let out an ear-piercing scream. A short distance away, a flock of birds erupted skyward in a chaos of beating wings and panicked screeches.

Now slumped against her restraints, Fluttershy felt that the thick vine's wiggling had finally stopped, replaced by slow pulsing. The mare sensed some strange prickling in her insides, not exactly pleasant, but not painful either. The vine moved back a bit and the prickling sensation occurred once again. The process repeated a few times, until the vine fully retracted from the mellow pony's butt. Likewise, other vines released Fluttershy's tired body from their green prison.

Feeling a bit dizzy, the pegasus took a few deep breaths to steady herself and tried getting back on her hooves. Her legs felt a bit wobbly, so she quickly spread her wings and flew away. Thankfully, they weren't too stiff to fly, although quite sore from being bound so tightly.

Oh my, I should get back to the safety of my cottage as quickly as possible. Thank Celestia, Mr. Tweetums is fine.

What... was this... thing? Could a plant move this deliberately? I wonder if Zecora knows anything about it.

Various thoughts swirled around Fluttershy's head as she was flying back towards the safety of her cottage. She wasn't going to forget her peculiar experience anytime soon.

~~~~~~~~~~

Excerpt from "The Everfree Forest's Flora and Fauna" by Lavender Bloom
Wildlife Research Society of Canterlot

Cradlevine (Flagelliana vivipara)
(flagellum = whip, liana = vine, vivipara = live-bearing)

Cradlevine is a rare plant, native to the Everfree Forest, adapted to its moist and dark habitat. Cradlevine starts as an inconspicuous shrub below a tree. Gradually, it grows upwards, wrapping its vines around a tree and using it as a scaffolding. It can live for many years and reach massive sizes.

Reproduction

This plant has a highly unusual method of reproduction. During the initial research, one of our pegasus colleagues (who wishes to remain anonymous) got too close to the plant and was swiftly captured. Any attempts to rescue her were met with the plant's retaliation, which shows that it is capable of defending its prey.

We have observed that cradlevine uses its thinner, highly flexible vines to wrap around and bind captured creature's extremities, then seek out and stimulate the prey's genital area, guided by heat and moisture. This stimulation makes the prey more receptive to the plant's invasive reproduction procedure. After a while, a specialized, thicker vine (likely a modified flower stem) is inserted into captive's rectum. Our colleague reported that this vine felt slimy and was covered in bumps. As we have found out later, these bumps are being used to implant cradlevine's spores into rectum's walls, where they are able to develop using surrounding heat and moisture.

Fortunately, cradlevine seems to release its prey unharmed once the reproduction process is done. Since we were unable to remove the spores using simple methods and more drastic ones were too risky, our colleague reluctantly agreed to be a test subject in order to research cradlevine's reproductive cycle, hoping it does not involve any harm to the host.

As it turns out, spores are expelled with feces after a few days, once they are sufficiently developed and no longer cling to host's rectal walls. In a natural environment, these feces provide nutrients to developing cradlevines, as well as protect them from herbivores.