On the Importance of a Good Safe Word

“You wouldn’t!” cried Celestia, struggling against the silky ties that held her to the bed.

“Oh, I, Midnight Glitter, mistress of the dark arts, most certainly will, my little Princess!” declared Twilight Sparkle, with her best attempt at a villainous laugh.

Celestia bit her lip, preparing herself for what was to come.

Midnight hopped onto the bed, straddling her.

“I’ll do just about whatever I want, I think!” Midnight’s riding crop hit the pillow by Celestia’s head with a sharp *pop!* She slid it across the older Princess’s neck, down into her bountiful, largely exposed bosom, and up onto one breast, pushing aside the diaphanous white gossamer that endeavored to hide it. She slapped the toy lightly onto Celestia’s nipple. It perked up at the attention.

“Y-you beast!” Celestia gasped, squirming under her paramour’s hips.

“I’m sorry!” blurted Twilight, recoiling. “Was that too much!?”

…

Celestia sighed.

“Baby, what did we talk about?”

Twilight blinked. “Um. Not breaking…character. Right. But!”

Celestia smiled indulgently.

“It’s just, you really sounded upset! And, ugh,” Twilight sat back. “I’m sorry. I just, I don’t really get all…” she gestured to herself and the ornate lingerie she wore. It was a black, leathery bra under a similar shrug, a scandalously short skirt and bottom of the same material with a matching corset, and a set of thigh-high boots that took as long to put on and tie up by themselves as the entire rest of the outfit. Then there was the hat. It was some kind of flat-topped, wide-brimmed, vaguely military thing she didn’t even know the name of. And the whole ensemble was highlighted with silvery, spiky studs in all the places you wouldn’t normally want spiky things. It made Twilight confused even looking at the costume. All the more, being asked to wear it.

“This. And…”

Her wave of the crop expanded to take in the scene before her. The Princess, specifically. Celestia wore a thin, gauzy bit of white cloth, bound loosely by golden rings into what might be considered a top that barely managed to cover her breasts, and little more than a loincloth below that. Twilight could see through it even in the dim candlelight of the bedroom. And that was all fine. Great even. Twilight loved that little get-up. The problem was that Celestia was also, quite willingly, tied to the banisters of the bed by the same cloth. “I mean, ok, I get that being seduced by a villain could be hot, but I just, I dunno, I always thought of you as so strong, and it just feels weird to, I dunno…”

“Honey, it’s ok. I know this is new for you. Hey, come here.” Celestia reached for her lover, getting caught on her bonds. She smirked at herself, then magically unknotted one and-

The huge double-door to Celestia’s chambers was blasted unceremoniously open. Luna strutted through, reading a stack of documents, already talking.

“Sister! We require your commentary on these latest…”

The Royal Voice tapered off as Luna took in the scene before her.

Then she burst into unabashed laughter.

“LUNA GET OUT WERE YOU RAISED IN A BARN LEARN TO KNOCK!!!”

It was unclear which of the lovers said what exactly, but it didn’t much matter in the end. They were both drowned out by Luna’s raucous cackling.

“And miss this display? Never!” But she had already turned and begun walking away. “What a wonder it is,” she said on the way out, “to see the student become the Mistress!”

The room echoed with the Moon Princess’s laughter for long moments after she’d left.

Celestia stared at the open doors, positively livid with mortification. Twilight gripped both doors in her magic and threw them shut, locking and barring the things, and then sliding an armoire in front of them for good measure.

Celestia thumped her head against her pillow and groaned in frustration. The mood was certainly dead now, if it hadn’t been already.