Struggling was futile. There was no escape, nor even thoughts of escape. Now, there weren’t even thoughts.

The pale yellow earth pony mare had long ceased resisting. The dark dungeon she was in, covered in chains and slime, had no longer invoked fear - or any other emotion. The dark green changeling cocoon that entrapped all of herself - except her head - was no longer worth escaping. All that mattered to her was to stare into her captor’s eyes, to mindlessly sink in and listen to their compelling voice.

“You belong to me,” the changeling said, words set in stone. The changeling’s black carapace shone in what little light was allowed to exist in the dungeon, as did their purple mane. However, their deep blue eyes shone the brightest, glowing powerfully as they gazed into the trapped mare’s unfocused lime green eyes.

Her enlarged pupils almost hid the color of her eyes, taking in the changeling. “I belong to you,” she repeated, completely enraptured and enthralled.

“You shall do everything I command.” The changeling reached up and caressed the mare’s orange, two-toned mane, grinning evilly.

“I shall do everything you command.” Her breath caught, as she shivered slightly. She was completely under the changeling’s control. They could tell her to do, be, or think anything and she would try her hardest to do it. Although trying implied intent on her part.

“You will let me have the last of the ice cream.”

“I will let - hey, no! What are you doing?” The mare’s pupils shrank to normal as she glared at the changeling. Her captor ignored the glare, sashaying towards the stairs - making sure the trapped pony saw every sway of their plot.

“Going to steal your ice cream. You can’t move, after all.”

“Cicada, get back here, don’t ruin this!”

Cicada looked back, evil grin even larger. “You don’t understand. You WILL let me have the rest of the ice cream, Junebug. You have no choice. But don’t worry, I won’t ruin this.” Their horn glowed purple, and Junebug began to squirm. A deep blush started at her cheeks, then spread through her face and into the rest of her now-flushed body.

“N-not again,” she moaned softly. “You can’t… oh fffuuuck…” Her body twitched and shook as much as possible in the confinement of the cocoon. Her whole body heated up, and the scent of a different type of heat filled the air. “Don’t… d-don’t leave,” she begged. “C-come-”

“No, YOU come,” Cicada teased, halfway up the stairs. “At least I’m sure you will, if it is anything like last time. You know, the time that you broke character? Just getting revenge for that~”

===================================================================================================

Cicada had put the finishing touches on Junebug’s basement last night. They couldn’t believe she let them do this! Well, not LET them; this was something both would enjoy. It took about a week, but Junebug’s basement looked like a proper dungeon now. To think they’d only lived here three months, and only dated Junebug for one of them.

Junebug sat in the middle of the ‘dungeon’ encased in a partial changeling cocoon. She struggled and shook back and forth, but to no avail. “You won’t get away with this, changeling,” she growled, though it rang hollow as she could not put any true anger in her voice. “I will escape and then the Resistance will defeat your hive-”

“Silence,” Cicada growled back. “Your pathetic Resistance is doomed!” There actually seemed to be true anger in their voice, despite there being no Resistance, and no hive. At first, Junebug was worried, then remembered Cicada’s acting skills.

“What are you going to do to me,” Junebug asked, half-filled with ‘defiance’, half-filled with ‘fear’, but completely full of nervous excitement.

“I have you where I want to, little mare… struggle all you want, there is no escape. As you grow weaker from exhaustion, I shall use my changeling mind control to make you my completely obedient slave, and then… muahahaha… wait… why did you stop struggling?”

In fact, Junebug had gone completely still, her normally yellow face now tinted with red. “I… um…”

“A-are you okay? Is everything alright? I…” Cicada’s worry ended as soon as they tasted the ‘air’. “...You know I haven’t started the ‘changeling mind control’ part of this, right?”

Junebug nodded and blushed deeper. “S-sorry,” she said with a shiver, breathing more excitedly. “I… I got distracted. I can start squirming now if you want.”

“Oh, you will squirm all right,” Cicada replied half in-character. “You see… I know a few changeling spells that - while not mind control per se - will get you to do exactly as I want you to.” Their horn lit up and…

===================================================================================================

Junebug’s reveries about their first attempt were interrupted by the same feelings from that spell. Her whole body was on fire, and she loved it. Every nerve sent electric tingles of pleasure through them, and every part of her felt loving caresses and lustful massages. Then there was the pleasure between her legs. Her inner thighs felt the magic touch she forgot she craved so much, and her cunt… Sweet Heavenly Sisters, her cunt… the heat, the pressure building inside her, the pulsing pleasure was something only magic could make her feel, and it made her melt. Just like last time, she had no choice but to give Cicada the squirms they were after.

Though the cocoon was not completely transparent, it was translucent enough that she was sure they could see her growing wetness from arousal. She was helpless, unable to escape, and completely vulnerable.

If it weren’t for the fact that Cicada was going to steal her ice cream, this would be Junebug’s perfect moment of bliss.

“H-how,” she tried to ask, but bit her lip to pathetically stifle another moan. As soon as her ragged, excited breathing allowed her to, she tried again. “How did this even…. Mmn… how’d you find out about me wanting this?”

Cicada glanced back, another few steps of the way up the main floor. They slowed down just to tease Junebug. “Weellll….”

As Cicada talked about their arrival into Ponyville and being ‘pen friends’ for a long time, their spell worked its irresistible magic on Junebug’s eager body. While Cicada mentioned the crazy ponies talking about ‘changeling hypnosis’ and vampirism, it continued to transform Junebug into a hot, quaking, aching mess. While Cicada said… something… the trembling, dripping, melting Junebug...

“And that’s how I first thought about dating y- are you listening?”

Of course, Junebug wasn’t listening… at least not all the way. She was more focused on the wetness dripping down her leg in the cocoon, the pleasure hitting every part of her body, and the heat in her cunt. There were, however, bits and pieces that she did hear from Cicada. “You mnhh oh Celestia stop- n-no, d-don’t stop - you thought that on our first meeting?”

“Hey, you’re beautiful,” Cicada responded with a chuckle. “And I thought our months of being pen friends really let us know each other. Wouldn’t you agree?”

“Yes my queen- I mean… Cicada!” The pleasure made it hard to think, and she was slipping back into roleplay for a second.

“You can call me your queen if you’d like, though we didn’t get that far. When did you find out you were interested in the whole ‘evil changeling’ thing?”

“That day! I… um… I didn’t… you brought feelings out that I had to… uh….”

Cicada’s evil grin was getting a workout today. “Explore,” they offered.

“Fff… yes fine! I ‘explored them’ in my room, okay? Aand… mmnh… you...mentionshed hyy… ooommm…. Hypnosis but you nev...nn...never mentioned THIS back then!”

“This isn’t a spell that I’d talk about in the open. I’m not that depraved or perverted. We just met, remember? If you’d like, we can try hypnosis next time to make things more interesting, but I think you like this spell too, don’t you?”

“Yes my queen!” Why not get back into it? It felt good, and any more pleasure like that and Junebug was about to burst.

And then it stopped, as the changeling was gone. “C-Cicada? You… you really are… just going to leave me here to eat my ice cream? But…” At least the cocoon, while tight and restrictive… and binding… and oh so sexy… was also very comfortable. The pleasure started to die down, leaving Junebug to be able to catch her breath.

But only for a moment, as the spell reactivated, twice as strong, twice as penetrating, twice as pleasurable. She thrashed and surged and ached with burning desire. She was lost in the feeling. She was filled with lust and pleasure. She was...she was being fucked without anything ever entering her. And she was about to climax without even being touched. A surge of magic, of power, of intoxicating, irresistible bliss, hit as the feelings grew beyond measure. She trembled and quivered before just giving in, flooding the cocoon from her climax. The gasping, shaky moans could be heard upstairs, and if she listened carefully, she could hear an evil cackle in response.

She was in no condition to listen carefully.

Finally, though, it was over. Junebug could relax, and just bask in the glow. Or let her senses slowly come back, her frustration at being tricked out of ice cream returning little by little.

Until the pulses started again.

Cicada peeked out from the stairs, now with a mostly-empty carton of ice cream next to them. Their horn glowed as they grinned mischievously.

“I wouldn’t forget about you, my pet,” they purred. “Just needed a snack to replenish my energy. We’re both going to need it.”

“...!” responded Junebug, as there were no more words left in her.

Author's Note

The original contest entry had two flashbacks, which (as was pointed out to me) is a little much for this kind of scene, especially since the second one basically dumped a bucket of ice water on the situation. I have reworked that flashback into another chapter.