Twilight pulled into the parking area and got out. Cars outside of Mistress Massage… a good sign.

Too busy to record. Twilight began the log notes in her head, storing the script away until she got a chance to put it down.

“Experiment log: Project ‘Interception,’ day seventeen.”

The bell chimed as she walked in. Twilight frowned – no one at the desk, and a customer in the lobby. An older man patiently reading his newspaper.

“Excuse me,” Twilight waved briskly as she walked over. “I’m sorry to interrupt, I work here in the business office. Have you been helped?”

The man smiled happily. “Oh, yes. I’m just here a little early, my appointment isn’t for another twenty minutes.”

Twilight wished him a pleasant stay and strode down the back hall.

“All basic measures have remained stable throughout the last fifteen days. My brainwashing of the sirens shows no signs of wearing off. Indeed, with their neural pathways literally changed, I would be surprised if it ever did. They have followed my every command to the letter. They announced to the Rainbooms their decision to repent and live as humans, and all have become fast friends. Mistress Massage is a legitimate business and they enjoy it. They know I like seeing them grow as good people, and so have shown initiative and enthusiasm in developing their new lives.”

She poked her head in the spa room. Empty, save for Rarity and Fluttershy. They sat by the steam rocks, chatting happily side-by-side. A white hand held a yellow in the space between them.

Twilight slipped out before they noticed. She pushed open an unmarked door to the parlor’s office space. She slung out her laptop to one of the desks and thumbed it on.

“Princess Twilight got off easy. A little hypnosis to help steer her right, and she was sent home with only memories of a wild night with the reformed sirens. Best for everyone, really. Having only spent one day under their power I expect there will be no lasting effects on her.”

“The Rainbooms are… more complicated.”

A few apps and passwords later, a grid of small screens appeared before her. The hidden cameras she had set up to monitor their progress. She efficiently began speeding through, reviewing past and current footage for anything suspicious.

Nothing, really. The Dazzlings lived their lives – gossiping, plying their trade (still appointments only!). They’d prepared an outside massage bed for a local fair, using the chance for free advertising and some outdoor fun with their friends.

She saw the current footage of Rarity and Fluttershy in the spa. They scooched closer, their eyes coming to meet. Rarity made the first move, gently pushing Fluttershy down and closing atop her to join their lips and tongue. Fluttershy’s hands tore off the towel and gripped her naked white butt. Rarity began kissing down her body as Fluttershy moaned and trembled.

Twilight maximized that screen and watched.

She could multitask. “As theorized initially, such intense, deep brainwashing cannot simply be reversed. What’s more, they are clearly changed (note: permanently?) even absent specific instructions. All have become sexually active, and certain roles seem to have been imprinted and accepted as natural. Rarity and Fluttershy are now a romantic item, Applejack is an intense sexual masochist, and Sunset had begun part-time work at Mistress Massage. Speculate this last part is due to her spending so much time under the siren’s thrall that affection for them has become imprinted. Obviously, no one will be teaching, learning, or doing any kind of hypnosis.”

She clicked over to another screen. Pinkie’s visit last week. A pleasant massage, followed by a happy ending.

“Addition to last paragraph: Except for me. While this research will not be made public, it will be useful if we encounter another villain with mind-control powers.”

Pinkie grinned to the camera, her tits jiggling as Aria licked her to completion.

Twilight wiped off her hand and continued her search. All good.

...Maybe even better. The brainwashing tables were gone from the playroom, but Twilight had let them keep their toys.

Applejack sat, bound hand-and-foot in tight leathers, with metal weights clamped to her tits. She lounged sitting upright on a comfortable couch with Sonata curled in her lap. The blue siren held a plate of chocolate-covered strawberries and fed them slowly to her captive.

“Still safe and comfy?” Sonata’s perky voice came through the speakers.

Applejack swallowed her treat. “Shucks, babe. You know this ain’t nothing.”

“Even with…?” Sonata gestured with her head. Twilight saw the wire coming up into Applejack’s ass, and heard the slight buzzing within.

“Barely a warm-up.” Applejack leaned in for a surprise nuzzle, winning a squeak. “And that’s as far as we’ll take it for now. You’ve got that customer on in ten, missy.”

Sonata pouted adorably. “Right, right. Wanna be left there until I’m done? You can reach your phone, right?”

“Yes, and yes.” Applejack kissed her. “Reckon I’ll be right needy by the time you get back, but don’t you hurry on my account.”

Rainbow jogged over as Sonata rose, butt-naked. “Hey guys! Anyone know where Aria’s new thing is?”

“Use your words,” Applejack said.

“You know...” Rainbow stumbled, trying to shape it with her hands. “That thing you jam in a pussy then push a button and it spreads out? Like a double-sided one of those. Aria wants to try it out with me.”

“Think I saw it in the closet.” Sonata pointed, quickly putting on her robe.

Aria’s voice shouted from off-screen. “I found it!”

“Awesome!” Rainbow sped from Twilight’s view.

Twilight glared at the screen for a moment then clicked it off, silently vowing to put another camera in the playroom.

For safety, of course.

“Curiously, some of the imprinting appears to have gone both ways, as Aria and Sonata have developed a romance with Rainbow and AJ respectively. This lends credence to the idea that the sirens did have some affection for their favorite victims, perhaps as one might a pet. While it’s unlikely this could have reformed them on its own, that the sirens are capable of such feelings means their redemption is much preferred to imprisonment or other extreme measures.”

Twilight nodded, happy with the conclusion. Yes, this was best for all. She had done the right thing.

Twilight snapped the laptop closed and stood, leaving it behind. She meandered to the hall, then entered the first door past the bend. It was a little past-time for her own appointment, but she got… distracted.

There was the massage table, and there stood two yellow girls in their robes. Both bowed as she entered.

“Hello, Mistress.” Adagio brought up her head, magenta eyes eager and sparkling. Any chance to serve Twilight, the kind mistress who redeemed her.

“Hey, Twi.” Sunset said casually. “The usual?”

“Yep.” Twilight quickly took off her clothes and hopped to the table.

“As a self-observation, I find I prefer being seated upright when receiving massages. Lingering instincts, I suppose.”

Without further ado, Adagio knelt and began rubbing her feet. Skilled fingers pressed and kneaded, winning happy little squeaks from Twilight’s mouth. Sunset began working her shoulders.

Then Adagio brought her head lower. Her full lips opened and she pulled Twilight’s foot into her mouth. Adagio suckled it, eyes rolled back, fingering herself as she removed it to kiss and suck each toe.

Twilight sighed out, long and low. She leaned back, where Sunset had already climbed up behind her. Yellow hands reached around and began squeezing Twilight’s breasts.

“I’ve been practicing, Mistress,” Sunset said. Not quite her perky norm, the voice came low and sleepy. “Slave Adagio has been teaching me. I hope you can feel the improvement.”

Twilight bit her lip hard. Her back arched, and a moan escaped as Sunset began kissing her neck. Twilight’s unoccupied foot stepped on Adagio’s face, and the siren began worshiping both at once.

“Efforts to free the Rainbooms have relied on ‘tricking’ their brainwashed logic. They are still unfortunately slaves of the sirens, but all parties know the sirens are my slaves, so therefore the Rainbooms are…”

“At any rate, the sirens are brainwashed into goodness and have done all they can to release my friends. The girls have been freed and commanded to do as they like, however the aforementioned imprinting seems to have tied our groups together. This is especially true for Sunset – so deeply brainwashed, so thoroughly converted that she remains the least ‘cured’ out of all of them. Sunset ‘freely doing what she wants’ involves following her brainwashed commands – serve the sirens, but the sirens are now slaves, so she must serve me instead. She resisted gentle efforts to dissuade her, and the matter was not pressed. Sunset appears to have a deep and extreme need to exist as someone’s sex slave, and with me in that role I can ensure she remains safe.”

Now both girls knelt before Twilight, licking her out with slow, tender motions. She reached a hand down and stroked Adagio’s cheek. The magenta eyes met hers with unquestioning love.

“As the siren’s leader did not ‘imprint’ naturally, it seemed prudent to ensure she had a focus for her affection so as to not feel isolated. The natural subject for this also was me, given that it would let me directly observe the effects. The conventional hypnosis on days three and six appear to have worked excellently.”

A few minutes later she cuddled with them on the couch. Both wore blindfolds, gags, and were bound with soft ropes. They nuzzled at Twilight’s breasts, mewling impotently at the buzzing invaders between their legs. Twilight fingered herself, idly flicking the vibrators’ intensity up and down. Up, down, up…

She came. They did not. If they were good, the reward would come later.

Twilight settled back, hugging her bound, needy slaves and grinning to the ceiling.

“At this point, it is worthy to dismiss the initial end-goal of fully ‘curing’ my friends. Intense brainwashing to reverse intense brainwashing remains unacceptably risky. As all parties now enjoy practical freedom, social support, and good intentions, maintaining the current status quo is assessed to be the most humane and appropriate action.”

“Supplemental: Although it most obviously manifests in Sunset, do all Rainbooms now view me as their hypnotic mistress? Experimentation may be required. For science.”

“Supplemental(2): Complications may soon arise with the approach of college years. Given the intense bonds we now share, efforts to secure communal living accommodations may be in order. It will be great fun to live with my friends, and practically be an excellent way to continue observations and enact further

experiments.”

Author's Note

Thanks all for reading my little adventure in shameless indulgence.

If you're interested in a more-plot-less-clop hypno fic, please feel free to check out my other one. :3