“So this is it?” Fluttershy asked, skeptical.

“This is it,” Twilight said, eager and breathless.

They were in Twilight’s bedroom, looking at the spread out pile of purple latex and sex toys spread out on the sheets. To Fluttershy, it looked rather complicated. There were straps and hoses, and she could see at least three sets of lightly glowing runes in various spots.

“I can guide you through the process, don’t worry,” Twilight said, looking worried at Fluttershy’s expression. But Fluttershy shook her head.

“Not quite yet. This is about education, right? Trying new things? I want to know the story here. What…exactly is it? How does it work? And how did you discover… this?”

“It’s a deprivation suit,” Twilight said. “Custom made for my alicorn body.” Her voice dropped to a whisper. “I’ve never used it.”

“Never?” Fluttershy asked.

“Not this one. I had one when I was living in Canterlot. When I was still only a unicorn.” Twilight snorted with amusement. “Before I came here. And before Cadance caught me.”

“W-wait, what?” Fluttershy gasped. “Tell me about it.”

“I discovered sensory deprivation on accident,” Twilight said. “While studying at Celestia’s school. Sometimes things would get so…so overwhelming. Sensory overload, you know? So it started with earmuffs while I was studying. And I found… I really liked the sensation of silence. Not all the time, of course. So I took it the next step. Darkness. Then a blindfold. Then a hood. There was a peace to it. I could meditate, and be alone with my thoughts. It was really useful if I had a problem I needed to work through. And then…”

She blushed.

“I made the mistake of doing it while I was in heat.” She ducked her head, ears pinning back, as her eyes glazed over in memory, even as Twilight’s face blazed red. “It was the strongest orgasm I’d ever had. And that was when I bought my first suit. Of course, I had no idea what I was doing, and I…well, it’s embarrassing. But I got myself stuck one day.”

Fluttershy gasped, but Twilight laughed. “It could have been a lot worse. But I was supposed to meet Cadance for lunch that day, and she got worried and came looking for me. I was lucky she found me, and not my mom. Or Shiny. Could you imagine? Cadance still gave me a hard tongue-lashing.”

“She didn’t approve?”

“What?” Twilight blinked. “No, Cadance is plenty kinky. She owns that sex club you and Rarity went to in Manehatten, did you know? That’s how I was sure it was reputable. No, she didn’t mind the kink stuff, just that I was doing self-bondage without any sort of safety protocol.”

Fluttershy was still trying to digest what Twilight had just casually revealed about Cadance. “Princess Cadance is… kinky?”

Twilight rolled her eyes. “Yes. She and Shiny have a devoted but open relationship, and both of them really enjoy group sex based fetishes and secret orgies, and I have now said out loud more about my brother’s sex life than I ever wanted to even think about. If you want to know more you can write either one of them, I’m sure they’d be more than happy to tell you. Or invite you.”

Fluttershy’s mind flashed to an image of the Princess of Love, the most beautiful pony alive, and her rather studly husband. Her tail lashed, and Twilight shook her head.

“Anyways, she made me promise I wouldn’t ‘play’ with deprivation or self-bondage any longer unless I had somepony to watch over me. She offered, but…” Twilight shuddered. “That’s just…weird. She was like family. And now she is family, so hard no. And then the craziness with Nightmare Moon happened, and moving to Ponyville, and becoming Princess…” She sighed. “I just haven’t had any time for personal pursuits. Like personal pleasure.”

“And now you can keep your promise to Princess Cadance.” Fluttershy reached out a hoof, to brush Twilight’s cheek. Twilight smiled and blushed. “Twilight, I’ll watch you, whenever you like. Besides, I’m really curious.”

“Oh?” Twilight said, her eagerness coming back. “Should we get started, then?”

The first step, it turned out, was a series of straps. Fluttershy was sure the bondage wasn’t exactly necessary to the process, but Twilight assured her that it was important for her. The first strap went around Twilight’s barrel, pinning her wings to her sides. Fluttershy was terrified that she would hurt them, but Twilight reassured her.

“It’s tight enough that I can’t move, but my wings aren’t hurt. Besides…” she blushed. “...maybe you can be sure, after, and we can do some preening? Just so you can make sure they’re okay, of course.”

Fluttershy liked that idea.

Next was Twilight’s beautiful tail had to be dealt with. Fluttershy wrapped a band around the base, before folding the rest in half into a tight bob. It left Twilight’s marehood exposed.

She was already wet and winking.

Then came her forehooves, wrapped tightly in front of Twilight’s barrel with two bands.

“Next is the p-panties. I haven’t tried these yet,” Twilight admitted, motioning with her head. Next to her on the bed rested one of the strangest pairs of panties Fluttershy had ever seen. They were made of the same purple latex, but on the insides were two phallic-shaped plugs, lined up perfectly to match Twilight’s holes. “I-I’ll need your help.”

“Lube?”

“Oh! Bedside dresser, second drawer.”

Fluttershy quickly opened the drawer, eyes widening at the contents. A bottle of lube, a long, tapered vibrator and an… illustrated anatomy textbook?

She looked at Twilight with a raised eyebrow. Twilight gulped. “What? I like to learn while I get off.”

Fluttershy giggled, fetching the lube. She opened the bottle and inhaled. Rose scented. It reminded her of the flowers around her cottage. She smiled as she poured some of the lube onto the phalluses, as Twilight twisted to watch her with anticipation. She made sure each one was well lubricated. They were soft, but firm.

Fluttershy would have to find a pair for herself, she thought with a suddenly dry mouth.

“Done?” Twilight asked impatiently, and Fluttershy giggled again.

“Done,” Fluttershy said, and moved to Twilight’s hindhooves. Carefully she slid the panties up her friend until the two points were lined up with Twilight’s holes.

“Deep breath,” she said cheerfully, then pulled them up. Twilight gasped, and Fluttershy smoothed the glossy latex around the curve of Twilight’s rump, making sure to press her hoof firmly against Twilight’s crotch, rubbing and grinding while Twilight moaned. “Comfy?”

“Y-yes. They’re in. Great! Don’t forget the remote. It’s on the bed.”

“Now?”

“N-no. Not until I’m in the suit.”

Now that Twilight was stuffed and squirming on the bed, next was a strap around her hindhooves. As Fluttershy tightened this one, Twilight clenched her eyes shut and let out a whimper of anticipation.

“Okay, the last part before the suit is the muzzle, so I won’t be able to help much. Once I’m muzzled, I’ll lay out on the suit. Guide it up my hooves and legs, and zip me up. Once I’m zipped all the way, pull the hood over my eyes, making sure my horn sticks out of the hole. Once that’s done tap the rune on the collar, and it’ll activate the vacuum spell. The suit will seal tightly and I’ll be completely helpless, except for my horn.”

“Usual color signals?” Fluttershy asked. Twilight nodded.

“Keep me inside for one hour, or until I signal. I’ll signal green once the suit seals, so you can be sure I’m safe and comfortable. And then, you can turn the toys on.”

She shuddered.

“Or not. You’ve got all the control.”

Fluttershy gulped at that, nervously, but she quickly followed Twilight’s instructions, starting with the muzzle, a binding that went around Twilight’s own muzzle and behind her head. Then there was the suit. The suit started at her hooves, sealing Twilight’s hindhooves into a single glossy purple limb. Then she did the same with her forehooves, before pulling the zipper up her back and releasing Twilight's bound tail through a hole cut just for it. Twilight was already breathing hard with arousal.

Finally Fluttershy faced Twilight. “Ready?”

Twilight nodded, and Fluttershy pulled the hood up over Twilight’s head letting her horn poke through the hole.

Fluttershy found the runes at the collar, just like Twilight had said, and reached out a hoof nervously to tap them once. There was a flash of enchantment, a magenta light the same as Twilight’s magic, and every wrinkle, every gap, every bit of slack in the suit suddenly disappeared in a hiss of air as the latex sucked in, skin-tight, to Twilight’s flesh. Every curve, every line of her body was emphasized in stark relief. Fluttershy could even see the lining of her panties, and the slight bulge of the two toys. Twilight squirmed and moaned, and her horn flashed with a green light.

“Oh, good. You’re comfortable then?”

There was no response. Fluttershy blinked, remembering the hood that now covered Twilight’s ears. “Oh. You can’t hear me.”

Fluttershy rested a hoof on Twilight’s barrel, just between her bound wings, and she squirmed a little at the touch. “Touch is the only sense you have right now, hmm? Or can you smell, too? I guess you can. I wonder if there’s a way to block that without messing with your ability to breathe? I wonder if it even matters?”

She blinked, and laughed. “And you still can’t hear me. I’m babbling, aren’t I? Lemme get the remote.”

The remote for Twilight’s panties was right next to where they’d been sitting on the bed. Fluttershy picked it up. There was two dials; one of them for the anal plug, the other for her cunt.

Fluttershy took a long look at Twilight, her hoof sliding up and down the perfect curve of her rump, before quickly twisting both nobs to full power.

Twilight thrashed violently on the bed, her bound form jerking this way and that while Fluttershy watched. After a moment she turned the dials back down to about forty percent. Twilight continued to jerk about, but it was less drastic now.

“I know you can’t hear me. So maybe it’s a little silly to talk. To babble,” Fluttershy said softly as she started touching Twilight again. There was something addictive about the perfect smoothness of the suit; something she couldn’t keep her hooves off. Or her wingtips. “Maybe it’s totally pointless. But maybe I can talk about things now I’m afraid to talk about when you can hear me. Maybe…just maybe… I can work some stuff out in my head.”

She paused. The things she was saying felt right. Talking felt right. She sidled up to Twilight on the bed, adjusting the bound mare so that she was the little spoon as Fluttershy wrapped her in hoof and wing, pulling her into a tight snuggle. Twilight clearly realized what was happening, leaning her head back for a nuzzle, which Fluttershy happily gave.

“Yesterday was intense. In a good way. Watching Flash Magnus dom Rarity was incredible. But you and I both know why I didn’t participate. I was too afraid to be the sub for a scene like that yet, though maybe someday. And as a domme?”

She shuddered.

“It would have been like that one Nightmare Night all over again. I couldn’t…I just couldn’t be cruel like he was to Rarity, even if I knew she’d enjoy it. But this morning, before my train ride back, he and I talked, and I realized some stuff.”

She stroked Twilight up and down her flank with one wing.

“Flash Magnus explained some things, and cleared up some misconceptions for me. Being a dom isn’t about cruelty or control. It’s not about power. At least, it’s not about that for him. It’s about duty.”

She laughed.

“He’s a good stallion, but yes, he really does see the world in terms of duty and protection. And that’s what it is to him. He’s enjoying himself, sure, but he was really keyed into the responsibility he’d taken upon himself to make sure his subs, Rarity and I…”

For she had been a sub in that scene, even if she’d only been observing.

“...Rarity and I had a spectacular time. And he made sure we were safe during the entire scene. All of the cruelty and violence? That was what Rarity asked for. He not only made sure she got what she wanted, he also ensured it was all safe. And he did all of the same for me. We gave him trust, and he took that seriously.”

Twilight’s wiggles were slowing down. Fluttershy lifted the remote and turned each knob up a single notch. Twilight clearly noticed, making an inquisitive squeak before settling back into the cuddle.

“Maybe you didn’t think about it this way, but…trust is a gift that we gave to him. And you gave your trust to me.”

She hadn’t thought about that part, she realized. Not until she’d verbalized it out loud.

“You gave your trust to me,” she repeated in a whisper, leaning forward to kiss Twilight gently on the cheek. “Thank you. I promise I’ll take it seriously.”

She still didn’t understand the intersection between the heady feeling she was experiencing right now, the enormous rush of responsibility and obligation she felt, and the inherent lust of the entire situation. Looking at the helpless body before her, Fluttershy wanted to lose herself to the desire she felt. She wanted to roll on top of Twilight, to grind herself against the helpless mare, to kiss her so hard she’d feel it through the latex. She wanted to grab the toy from Twilight’s dresser and wedge it between Twilight’s hindhooves, using her as a stand as she pleasured herself to screaming climax.

Maybe an experienced domme could do stuff like that and keep the scene safe, keep it going. Flash Magnus certainly could. Fluttershy didn’t know how.

So for now she would focus on her duty, and the strange, wonderful feelings she felt doing so.

“There are all kinds of dommes,” she told Twilight. “At least, that’s what Flash Magnus said. All kinds. The kinds who like to spank and humiliate, to make a sub crawl. To make them serve. Then there are those who enjoy a softer kind of domination.”

She giggled softly. “Flash said they’re sometimes called ‘dommy mommies’. I’m not sure I like the implication of relation, but I do see the appeal. I enjoy protecting others. Why couldn’t that extend to sexual exploration?”

It would now. She was sure of it. As sure that she would explore the other side of things, the helplessness and loss of control.

“So thank you for trusting me. Thank you for letting me do this. And I really hope I’ll have a chance to do this again. I’ll probably take a more active role next time.”

Fluttershy would, too. She lifted the dial and cranked it up again. Seventy percent. Twilight was groaning into the muzzle. Gradually, Twilight began to thrust her hips back into Fluttershy. She felt Twilight’s bound tail tickling against her stomach, and she laughed.

“Feeling a little needy? Okay, Twilight. Let’s see what we can do about that.”

Once again she turned both dials up to the maximum. As Twilight struggled, Fluttershy stroked her hips with her hoof, while leaning forward to kiss at Twilight’s neck. “You try so hard for everypony. You work much. And still you took so much time to help me. You are the nervous system of my entire plan, Twilight. I’d be lost without your hard work, your genius, and your creativity. I owe you so much. Even though we’re just at the beginning you’ve already done amazing things.”

She continued to kiss, nibbling at Twilight’s ear just hard enough that she was sure Twilight could feel. Her hooves gripped Twilight’s hips, and her wings tickled at her sides.

It didn’t take long. Twilight’s climax was obvious; she held her breath and arched her spine, and Fluttershy felt her wings straining in her bondage as she spasmed. It lasted a very long time, so long that Fluttershy started to worry. Then she started to pant again, heavy breaths through her nostrils as she slumped limply into the bed.

Fluttershy politely turned the dials back down. Twenty percent.

“That was beautiful, Twilight. I hope you enjoyed yourself.”

She sat up just enough to see the time. It had only been fifteen minutes. Forty five to go. She cuddled back down, stroking Twilight’s head.

“I think we’ll cuddle for a bit, hmm? Then in a while I’ll turn it back up again and you can cum. Goodness, I’m sure you’re quite wet by now.”

She smiled.

“What should we talk about next?”

In the end, Twilight came seven times. Fluttershy took the bondage off three minutes early because she was worried about dehydration.

Twilight, though flushed and sweaty, looked ecstatic.

“Fluttershy… this is…”

“Shh,” Fluttershy said. “Drink.”

She remembered how dazed she’d been coming out of the Box. She kept Twilight on her side, laying down, while she made Twilight take sips from a cup of apple juice. Twilight drank obediently. Fluttershy felt another rush. A princess, and alicorn, following her orders.

This feeling would bear more investigation, she thought with a smile.

“You’re safe here with me. You’re safe, and comfortable.”

“Mmhmm. Yeah I am,” Twilight cooed, leaning into Fluttershy’s hoof as Fluttershy stroked her sweat-soaked mane. “Very much yes. Thank you.”

“It was absolutely my pleasure,” Fluttershy said gently.

Author's Note

This one was a lot of fun. I was oddly amused by the idea of Fluttershy getting all introspective in the middle of kinky sex.