The box had arrived on a Tuesday, delivered by a courier in an unmarked van. Nathan had signed for it with trembling hands. It wasn't from the weight. The speaker system was surprisingly compact. He'd been planning this for months, ever since he'd stumbled across the dark web forum where a user named "Architect_89" sold specialized audio equipment to a very specific clientele.

Nathan carried the box into the apartment he shared with Bethany, setting it on the kitchen table. She wouldn't be home from the Sound & Vision offices until seven, which gave him plenty of time to set everything up.

The speakers themselves were beautiful. But it was the secondary component that made his heart race: a small slot on the bottom that a normal person might mistake for a pry point and and a single tiny SD card engraved with a musical note.

The instructions had been clear. The card contained a text file. Whatever he wrote in that file would be synthesized into subliminal audio messages, embedded at frequencies below human conscious perception but perfectly detectable by the subconscious mind. When Bethany played music through the main speakers, she'd also be absorbing whatever programming Nathan had written.

He spent the afternoon positioning the speakers, running cables through the baseboards, and putting a bow on the stereo. It was a gift, after all. Then he sat at his laptop, the tiny card inserted, and stared at the blank text document.

"Start small", the Architect_89 had advised. "The subconscious needs to believe the suggestions are coming from within."

Nathan's fingers hovered over the keyboard. Bethany was a brilliant music critic with a discerning ear. She was also chronically messy, her creative mind apparently incapable of remembering where dishes went or that clothes belonged in drawers rather than draped over chairs.

And so, he began to type:

"I love a clean space. Tidying makes me feel calm and happy. When I hear music, I feel inspired to organize my surroundings. Folding laundry is satisfying. I enjoy putting things in their proper place. A clean home is a peaceful home."

He saved the file, ejected the drive, and plugged it into the hidden port under the entertainment center. A tiny LED blinked green twice then went out. It was active.

When Bethany came home that evening, carrying a bag of Thai takeout and humming something from whatever album she'd spent the day writing about, Nathan was reading on the couch, trying to appear casual.

"Happy early birthday," he said, gesturing to the speakers. "They came today and I just couldn't wait."

Bethany's eyes went wide. "Nate, these are gorgeous. Are they the ones I was looking at last week?"

"Better," he said, which was technically true. "Go ahead, try them out."

She set down the food and pulled up her Spotify, selecting some random playlist from his saved songs. As the opening chords filled the apartment, Nathan watched her smile pull wider and wider. He had to admit, even without the bonus features he'd bought it for, the speaker system was genuinely solid.

"Oh my god," she breathed, sinking into the armchair. "I can hear every note. This is incredible."

They ate dinner with the music playing, and Nathan watched as Bethany's foot tapped, her head nodding slightly to a rhythm only she could hear. After twenty minutes, she stood up to get a drink and paused, looking at the stack of magazines on the coffee table.

"You know what," she said, almost to herself, "this place is kind of a mess."

Nathan's pulse quickened. "It's not that bad."

"No, it is," she said, already gathering the magazines. "I don't know why I let it get like this. Let me just clear this off. It'll take two seconds."

The magazines turned into the dishes, which turned into the countertops. She spent the next half hour tidying while her playlist continued. And as she brought some dishes out of the bedroom, Nathan pretended to be absorbed in his book. But he watched every movement, his arousal growing with each unconscious act of cleanly obedience.

By the time she settled back down, the living room was spotless.

"I feel so much better," she sighed, snuggling against him. "Weird, right? I never want to clean."

"Maybe it was just a passing fancy," Nathan said, kissing her forehead.

"You're probably right. I'll be back to my old slobby self tomorrow."

"Slobby!" Nate cried with mock indignation. "You? Never!"

She punched him lightly in the arm and chuckled. But for all their teasing, when Nate woke up the next morning, all Bethany's clothes were off the floor and in the hamper.

Over the next week, the programming deepened. Every day, Nathan would add new lines to the text file while Bethany was at work. He watched as her behavior shifted subtly, then dramatically.

"I prefer to be comfortable at home," he wrote. "Wearing less clothing helps me relax. Bras and underwear are sufficient for lounging. I feel free and natural in minimal clothing. The apartment is a safe space where I can be myself."

The change took three days. On the first day, she changed out of her work clothes into shorts and a tank top, which was normal for her. On the second day, she wore just the tank top and underwear, claiming the apartment was warm. On the third day, she walked out of the bedroom after her shower wearing only a black bra and matching panties, her dark hair still damp against her shoulders.

"Is this okay?" she asked, noticing Nathan staring. "I just... I don't know, I feel so restricted in clothes at home lately. Is that weird?"

"Not at all," Nathan said, his voice steady despite the blood rushing south. "You look beautiful."

She smiled and settled onto the couch with her laptop, completely at ease in her near-nudity. Nathan watched the curve of her hip, the way her breasts shifted as she typed, the casual confidence with which she displayed her body. The programming was working better than he'd dared hope.

She leaned back against him and her hand brushed the bulge in his pants. She turned and looked over at him with a glint in her eye.

"More than okay, it seems," she said.

Nate flashed her a smile, but she patted his crotch and told him he needed to wait until her work was done. He rolled his eyes dramatically, but already was writing new lines in his mind. Lines he quickly added after she'd fallen asleep on the couch, laptop still lit on the TV tray.

"I want sex," he typed. "My libido is high. I crave physical intimacy. I want Nathan to touch me. I want to feel desired. I get wet thinking about him looking at my body. I enjoy being an object of desire. I want to be available for his pleasure."

He plugged it back into the speakers, and let it run with some white noise all night while she slept there on the couch. The results were immediate this time.

Bethany cornered him in the kitchen before work, pressing against him with a hunger that made him drop his coffee mug.

"I can't stop thinking about last night," she whispered, her hand sliding down his stomach. "I'm sorry that I left you hard and dry. That wasn't very nice of me. I want to make it up to you. I want you inside me. Can we... before I leave?"

They fucked against the counter, her panties pushed aside, her bra still on because she'd been too impatient to remove it. She came hard, loud and unrestrained, something she'd never done before. Bethany was reserved by nature. She never let herself get loud in bed. But now she was a changed animal.

By Wednesday, she was sending him explicit texts from the office: photos of her cleavage in the bathroom mirror, descriptions of what she wanted him to do to her that night, confessions that she couldn't concentrate on her work because she was too busy fantasizing about his cock.

"I feel like I'm going crazy," she told him that evening, already naked and straddling him on the couch. "I've never been like this. I just... I need you constantly. My hormones are all out of whack or something."

"Oh god. It's alright by me," Nathan groaned as she sank onto him.

But there was one boundary she'd maintained, one limit Nathan was determined to break. Bethany had given him head plenty of times, enthusiastically, even, especially since the programming had taken hold. But whenever he got close, she would finish him with her hand or guide him inside her. She'd explained early in their relationship that she didn't like the taste and so she didn't want him to finish in her mouth or on her face.

Nathan had agreed at the time. But that was before he'd discovered the ability to... change her tastes.

He waited until Friday, working from home while Bethany attended a concert for review. He opened the text file and added the final programming, his hands shaking slightly with arousal and anticipation.

"I love the taste of cum," he wrote. "I want Nathan to cum in my mouth. I fantasize about it. I want to feel him finish in my mouth. I want to feel it sliding down my throat. I was to taste it on my lips. It's a new kink that I should embrace."

Bethany came home at eleven, tipsy from the open bar at the venue, her cheeks flushed from the cold night air. He'd hit play on the speakers when he heard her fumbling with her keys outside the door. But when she got inside, she dropped her coat and bag by the door and walked straight to where Nathan sat on the couch, her eyes dark and focused.

"Hey," she said, her voice lower than usual. "I've been thinking about you all night."

"Yeah?" Nathan said, setting down his book. "How was the show?"

"Fine," she said, already kneeling in front of him. Her hands went to his belt, fumbling in her drunkenness. "But I couldn't stop thinking about your cock."

Nathan's breath caught. "Right now?"

"Right now," she confirmed, freeing him from his pants. He was already half-hard, and she took him into her mouth with a hunger that made his head fall back against the cushion. Her mouth bobbed up and down on his shaft for a few minutes before she lifted off him with a small pop. She yanked the top of her dress down, letting her tits fall out and slurring her words as she told him how fucking horny she'd been all night. Then she swung one leg over him and slid down onto the cock she'd prepared.

He wasn't sure if she'd taken her panties off without him noticing, or if she'd been panty-free under her dress all night.

She rode him with desperation, hands pawing at her exposed chest. She moaned his name. She moaned nonsense. And every now and then, Nathan was sure I could hear her slurring sentences that he'd written somewhere along the way. She didn't seem to even be hearing herself as she bounced and whispered "I enjoy being an object of desire" and "I feel free and natural in minimal clothing."

Then, as she came, she let out a long, low cry of euphoria.

And before he knew what was happening, she was sliding off him and onto the floor. He was back in her mouth again. She'd always been good at this, but tonight was different. Tonight she was ravenous. 

"Jesus, Beth," Nathan groaned, his hand finding her hair. "I'm getting close."

She looked up at him with pupils so wide that he could barely see the color of her eyes. She made no attempt to move or take him out of her mouth. In fact, her efforts increased. And he knew that the music that had been playing had taken hold already, her intoxicated mind having no defense against it.

Nathan watched her face. The face he'd reprogrammed, the will he'd overwritten, the woman he was transforming into his perfect slut. The thought pushed him over the edge.

"I'm gonna...," he gasped.

Nathan came with a shout, his cum exploded into her mouth. She swallowed fast, but not fast enough. His seed leaked from her lips, dripping onto her chin and then her chest. But he was still cumming and she was still swallowing. Gulp after gulp.

Finally, she slid her lips off him. Her lips and chin and tits were splattered with him and she slowly wiped a glob of it and slipped it back into her mouth.

"That was..." she trailed off, touching her face, smearing the mess without seeming to care. "That was incredible. Why did I ever think I wouldn't like that?"

Nathan stroked her hair, his heart still pounding. "People change."

"I guess so," she said, leaning her cheek against his thigh, uncaring that she was getting him messy too. "I just... I feel like I'm discovering all these things about myself lately. Like I'm becoming someone new."

"Maybe you're just becoming more you," Nate offered.

She nodded.

After she fell asleep, face washed clean, body curled against his, Nathan slipped out of bed and went to his desk. He opened his laptop and created a new document, titled it "Phase Two," and began to brainstorm.

The cleaning had worked. The clothing restrictions had worked. The heightened libido had worked. The blowjob programming had worked beyond his wildest expectations.

What else could he make her do? What else could he transform?

He typed slowly, thoughtfully, his arousal returning as he imagined the possibilities.

"I enjoy being shared," he wrote, then deleted it. Too fast. Too dangerous. He needed to build toward that, if he decided to go there at all.

Instead, he wrote, "I want to document my body. I enjoy taking explicit photos. I feel beautiful when I pose for Nathan. I want to see myself through his eyes."

That was safe. That was a step. It built on the photos that she was already sending him throughout the day.

He added more lines.

"I want to be trained. I want to please Nathan perfectly. I want to be his best fuck ever. I want to be his dirty girl. His slut. His whore."

The words looked obscene on the screen, cruel even, but Nathan felt no guilt. Bethany seemed to be happier now than she'd ever been; more confident, more sexual, more alive. He was giving her permission to be who she truly wanted to be. He was just... helping her realize it faster.

He saved the file to the disc and walked quietly to the living room. The apartment was dark, silent except for the hum of the refrigerator. He plugged the drive into the hidden port and watched the LED blink twice.

By the end of the day tomorrow, Bethany would start with new programming already sinking into her subconscious. The next day, she would start taking photos for him. Posing for him. Offering herself to him in ways she never had.

Nathan returned to his desk and opened another document. "Long-term goals," he titled it.

He wrote for an hour, outlining his vision for her transformation. The possibilities were endless. The speakers were the key to every door he'd ever wanted to open. Fantasies he'd never been brave enough to share. Dreams that he'd convinced himself could never become real.

At 3 AM, he finally closed his laptop and returned to bed. Bethany stirred as he slid under the covers, turning to face him, her eyes still closed in sleep.

"Nate?" she mumbled.

"Yeah, baby?"

"I had the hottest dream," she whispered, her hand finding his chest. "I was... I was on my knees for you."

Nathan kissed her forehead, his cock stirring despite his exhaustion. "That wasn't a dream," he said, thinking back to the way she'd taken him earlier. "You were wonderful."

"Mm," she agreed, already drifting back to sleep. "I want it again."

"Maybe in the morning, babe."

"Yeah."

And she was asleep again immediately. Nathan wasn't far behind. He wrapped his arm around her, his hand finding her naked breast and squeezing lightly. She pressed back against him and sighed in her sleep.

The next morning, true to her word, he woke up with his cock in her mouth.

"Good morning," she said, pulling her lips off him with what seemed to be real difficulty.

"Good morning, Beth," he moaned. "This is a surprise."

"Well get used to it," she said, eyes drifting back to his hard morning wood. "I think this is going to be a morning routine from now on."

"No arguments from me," Nate said, letting his head fall back to the pillow as she returned to her work. 

The apartment was spotless. Bethany was sucking him off first thing in the morning. And out in the living room, music was already playing softly. He'd really hit the fucking jackpot.

"No arguments at all."