Trial Reps

Jade adjusted the Bluetooth speaker on the gym floor, her thumb hovering over the play button. The studio space she'd reserved for Leanna's private session felt different today. Smaller. More intimate. The overhead fluorescents were dimmed to half power, and the early morning light filtering through the floor-to-ceiling windows cast long shadows across the padded mats. She'd spent three weeks refining these audio tracks, tweaking frequencies and embedding subliminal patterns beneath layers of ambient music. The app's beta testers reported incredible focus. What they hadn't reported, what Jade hadn't told anyone, was what else the tracks contained.

"You ready?" Jade called out, masking the flutter in her chest with a professional smile.

Leanna emerged from the changing room, towel slung over one shoulder, water bottle in hand. She was already warmed up from the light jog she'd done on the treadmill. Her dark hair was pulled back in a tight ponytail, and her compression leggings hugged the curves of her hips and thighs. She'd been training with Jade for four months now, and her progress was visible in every defined line of her body.

"Born ready," Leanna said, stretching her arms above her head. "What's with the speaker? We usually just use your phone for the timer."

"New audio tracks. Part of the app's focus enhancement module." Jade kept her voice casual, her posture relaxed. "The frequencies are supposed to help with concentration during holds. Figured we'd test them in a real session."

"Hypnotic beats?" Leanna grinned. "What's it gonna do, make me think I love burpees?"

"Something like that."

Jade pressed play.

The track began with a low hum, almost imperceptible beneath a layer of soft instrumentation. Wind chimes. Rain. A pulse that matched a resting heartbeat. She watched Leanna's shoulders drop slightly as the sound filled the room, watched her breathing slow and deepen. The subliminal layer was working already, threading beneath conscious awareness.

"Okay," Jade said, falling into her coaching voice, "let's start with some dynamic warm-ups. Twenty bodyweight squats, slow tempo."

Leanna dropped into the first squat, her form impeccable. Jade counted along silently, watching for any change. By rep ten, Leanna's movements had grown smoother, more fluid. By rep fifteen, her eyes had taken on a slightly glassy quality. Not enough that anyone else would notice. Just enough that Jade's pulse quickened.

"Good. Now hold at the bottom of the next one."

Leanna sank into the squat and froze, thighs parallel to the floor. Her lips parted. A soft exhale escaped her.

"How does that feel?" Jade asked.

"Good," Leanna murmured. "Really good. Like my muscles know exactly what to do."

Jade noted the dreamy quality in her voice. The first trigger phrase had played twice now, buried in the audio. She hadn't noticed. Perfect.

"Stand up. We're moving to planks."

Leanna rose and walked to the mat, her movements unhurried. Almost languid. She lowered herself onto her forearms, extending her legs behind her, body straight and strong. The compression fabric stretched across her backside as she settled into position, the curve of her spine dipping slightly before she corrected it.

"Tighten your core," Jade instructed. "Squeeze everything. Glutes, thighs, abs. Hold it."

"Mmhm." The sound Leanna made was barely a word. Her eyes were half-closed now, fixed on a point on the mat beneath her.

The audio track shifted. A new layer emerged, a rhythmic pulse beneath the ambient sounds. Jade recognized it immediately. She'd designed it herself. The frequency was calibrated to induce a state of heightened physical sensitivity, to make every nerve ending more responsive. More awake. She'd tested it on herself once, alone in her apartment, and had ended up touching herself for an hour before she managed to turn it off.

Now she watched it work on someone else.

Leanna's shoulders trembled. Not from strain. The tremor was different, more subtle. It traveled down her spine in a wave, making her hips shift almost imperceptibly. Her fingers curled against the mat, pressing into the padded surface.

"You're doing great," Jade said, keeping her voice steady. "Breathe through it. Let the music help you focus."

"It's... yeah." Leanna's voice had dropped lower. Softer. "It feels really intense."

"Intense how?"

"I don't know. Like every muscle is... awake." A small shudder ran through Leanna's body. Her head dipped forward, ponytail falling over one shoulder. "It's weird. It feels good."

Jade's throat tightened. She circled slowly around Leanna's prone form, observing from different angles. The girl's body was taut, every muscle engaged, but there was something else happening beneath the surface. Something the audio was drawing out. Leanna's breathing had changed. It was deeper, more deliberate, each inhale lifting her ribcage visibly. Each exhale came with a faint sound that could have been effort or could have been something else entirely.

"Hold it right there," Jade said. "Don't move."

"Yes," Leanna whispered. The word carried a weight that made Jade's stomach flip.

Thirty seconds passed. Then a minute. Leanna held the plank perfectly, her form locked in place, but her body was betraying her in other ways. A flush had crept up the back of her neck, blooming across her shoulders. Sweat had begun to bead along her hairline, rolling down her temples. Her lips were parted, and her breath came in short, soft bursts.

"How's your core?" Jade asked.

"Tight. So tight." Leanna's hips shifted again, a tiny roll that pressed her pelvis into the mat. "I can feel everything."

The second trigger phrase was playing now. Jade heard it beneath the music, a whispered command that Leanna's conscious mind couldn't parse. Her subconscious, however, was absorbing every syllable. The phrase was designed to associate the physical strain of holding a position with pleasure. To blur the line between muscle fatigue and arousal until they became indistinguishable.

It was working.

Leanna's arms were trembling now, and the tremor had nothing to do with muscle exhaustion. She'd held planks for twice this long in previous sessions without breaking a sweat. But now her thighs were pressed together, her core pulsing with tiny contractions that had nothing to do with stability. Her head dropped forward again, and when she exhaled, the sound that escaped her was unmistakable.

A moan.

Soft. Barely audible. But Jade caught it, and it sent a jolt of electricity straight through her core.

"Leanna?"

"I'm fine," Leanna breathed. "Don't stop. Please don't stop."

Jade's mouth went dry. She knew what she was hearing. She knew what she was seeing. And she knew she should turn off the audio. She should break the hold, end the session, pretend this had never happened. But she didn't move. She stood there, watching Leanna's body tremble on the mat, watching the flush spread down her chest, watching her hips make those tiny, involuntary movements against the padded surface. And she felt something she hadn't expected.

Power.

Not the power of a trainer over a client. Something deeper. She had done this. She had designed the audio, crafted the triggers, and now she was watching another person's body respond to her creation. Leanna was lost in the sensation, lost in the hold, lost in whatever the subliminal layer was telling her nervous system to feel. And Jade was the one in control.

It was intoxicating.

"Two minutes," Jade said, her voice coming out huskier than she intended. "You're doing so well. Hold it for me."

Another moan. Louder this time. Leanna's back arched slightly, her shoulder blades drawing together. The position pushed her chest toward the mat while her hips stayed elevated, and the sound she made was raw. Needy. Her fingers had gone white-knuckled against the mat, and her thighs were squeezed so tightly together that Jade could see the muscles jumping beneath the fabric.

"Good girl."

The words slipped out before Jade could stop them. Leanna's entire body shuddered at the phrase, a full-torso convulsion that made her gasp. Her eyes flew open, wide and unfocused, and for a moment she looked almost confused. Then her expression softened, melted, and she sank back into the hold with a long, shuddering exhale.

"Thank you," she whispered. "Thank you, thank you."

Jade's heart was hammering. She glanced toward the main gym floor visible through the glass partition. The studio was semi-private, separated from the open weight area by a wall of windows. At this hour, there were only a handful of people on the floor. But two of them had stopped their workouts. A man near the dumbbell rack was staring openly, his mouth slightly agape. A woman on a treadmill had slowed her pace, her gaze fixed on the studio.

They could see Leanna. They could hear her, if they were close enough. They could see her flushed skin, her trembling body, the way her hips moved against the mat. They could see her lips parted in sounds that had nothing to do with exercise.

Jade should have felt embarrassed. She should have felt exposed. Instead, a hot wave of arousal crashed through her, so intense that her knees nearly buckled. They were watching. Strangers were watching what she was doing to Leanna, watching her client moan and writhe on the mat, and they didn't understand what they were seeing. They could look, but only Jade knew. Only Jade knew that the audio was rewiring Leanna's nervous system in real time, turning physical exertion into sexual pleasure, and that every sound escaping her lips was genuine.

Three minutes. Four. Leanna was shaking continuously now, her body locked in the plank but vibrating with contained sensation. Sweat had soaked through the back of her sports bra, darkening the fabric. Her breath came in sharp little bursts, each one carrying a soft whimper. Her hips had found a rhythm, tiny circles pressed against the mat, seeking friction that the position couldn't quite provide.

"You can feel it building, can't you?" Jade murmured. She moved closer, crouching near Leanna's head. "The pressure. The heat."

"Yes." Leanna's voice was barely a breath. "God, yes."

"Don't fight it. Let it build."

A keening sound escaped Leanna's throat. Her arms were trembling violently now, but she didn't collapse. She held the position, held it like her life depended on it, like the audio was commanding her to. Her thighs were clamped together so hard that the muscles in her legs stood out in stark relief. The flush had spread across her entire body, visible even through her tan skin.

Five minutes.

Jade stood and walked to the glass partition. The man at the dumbbell rack was still watching. He met her eyes, and Jade held his gaze. Let him watch. Let him wonder. She turned back to Leanna, feeling the man's attention on her back like a physical touch.

"Six minutes. You're incredible." Jade's voice was steady, but her hands were trembling. She pressed them against her thighs to hide it. "Keep holding. Keep feeling."

"I can't... I can't..." Leanna was panting now, her body oscillating between rigid tension and trembling release. "It's too much."

"You can. You will. Hold for me."

Another full-body shudder. Leanna's head dropped, her forehead nearly touching the mat. A long, low moan rolled out of her, so loud that it definitely carried beyond the glass. Jade glanced at the partition. The woman on the treadmill had stopped entirely, her feet planted on the side rails, staring. A second man had appeared, leaning against a pillar, his arms crossed. They were all watching.

They were all watching Leanna fall apart.

Seven minutes. Eight. Leanna's body was a live wire, every muscle firing and releasing in waves that looked almost like contractions. Her hips had stopped trying to be subtle, rolling openly against the mat now, seeking any contact, any friction. The sounds she made were continuous, a stream of moans and whimpers and gasped words that might have been Jade's name or might have been a prayer.

Jade's own arousal was a heavy, throbbing ache between her legs. She squeezed her thighs together, feeling the wetness that had soaked through her own workout shorts. This was more than she'd anticipated. The audio was working too well, or exactly as well as she'd designed it to. She'd created something that could turn the human body into an instrument of pleasure, that could make a simple plank exercise into an act of sustained, denied ecstasy. And she was watching it happen in real time, in a glass-walled room, in front of strangers.

Nine minutes.

"Leanna." Jade's voice was thick. "When I tell you to release, you're going to let everything go. Do you understand?"

"Please." The word was a sob. "Please, I need..."

"I know what you need. Hold for ten more seconds."

Leanna made a sound that was almost a scream, muffled against the mat. Her body was rigid, trembling, every muscle locked in place. Her hips had ground to a halt, pressed hard against the mat, her thighs squeezed together so tight that Jade could see the fabric of her leggings pulled taut across them.

"Five."

A whimper.

"Four."

A moan.

"Three."

Leanna's whole body shook.

"Two."

"Please," she gasped.

"One. Release."

Leanna collapsed onto the mat. Her body hit the padded surface and immediately curled inward, her knees drawing up to her chest, her arms wrapping around herself. But the release wasn't just physical. Jade watched as a wave of sensation crashed through Leanna's body, visible in the way her back arched, her legs kicked out straight, her hands flew to cover her mouth. A muffled scream escaped between her fingers. Her hips bucked once, twice, three times against nothing, against the empty air, and then she lay still, panting, trembling, her face buried in the mat.

Jade stood frozen, her own body thrumming with sympathetic arousal. She could feel her heartbeat in her clit, could feel the wetness cooling against her skin. She watched Leanna's back rise and fall with ragged breaths, watched the aftershocks ripple through her body in tiny tremors.

Slowly, Leanna uncurled. She rolled onto her back, one arm draped over her eyes. Her chest was heaving, her sports bra dark with sweat, her skin flushed from her hairline to her waist. Her lips were swollen and parted, and her legs were still pressed together, still trembling.

"What the hell," Leanna breathed. "What the actual hell was that?"

Jade reached over and stopped the audio. The sudden silence felt heavy, oppressive. "The new tracks. They're designed to enhance physical sensation during holds."

"Enhance?" Leanna let out a breathless laugh. "I almost... I think I..." She trailed off, her face flushing an even deeper red. "That was the hardest plank I've ever done. And the best I've ever felt after one."

Jade noted the careful phrasing. Leanna knew what had happened. Or at least, she knew what her body had done. But she wasn't naming it. She wasn't saying the words. The audio had blurred the lines enough that she could pretend it was just exercise, just endorphins, just the intensity of a long hold.

"You held for ten minutes," Jade said. "That's a personal record."

"Ten minutes?" Leanna sat up, her eyes wide. "It felt like... I don't know what it felt like." She pressed her palm against her stomach, her fingers splaying across her abs. "I feel amazing. Like I just ran a marathon and had a massage and slept for twelve hours."

Or had an orgasm, Jade thought. But she didn't say it.

"Same time Thursday?" Jade asked, keeping her voice light.

Leanna looked up at her. There was something new in her eyes. Something hungry. "Sooner, if you can fit me in."

Jade smiled. "I'll check the schedule."

Leanna gathered her things and headed for the changing room, walking on slightly unsteady legs. Jade watched her go, then turned back to the glass partition. The man at the dumbbell rack had resumed his workout, but he glanced up as Jade looked his way. She held his gaze for a moment, then turned away.

Her hands were still trembling.

She picked up the Bluetooth speaker and her phone, her mind racing. The audio had worked. Better than worked. It had done exactly what she'd designed it to do, and then some. Leanna's body had responded like a perfectly tuned instrument, every nerve firing in the exact pattern Jade had programmed. And the pleasure had been real. She'd seen it, heard it, felt it radiating off Leanna in waves.

And she'd felt it too. Not the same way, not through the audio, but through the watching. Through the control. Through the knowledge that she had made it happen.

She wanted to do it again.

The realization settled into her gut like a hot coal. Not a passing thought, not a casual interest. A want. A need. She wanted to see it again, wanted to watch another person's body transform under her direction, wanted to feel that rush of power and pleasure and control.

She glanced at her phone. The app's interface glowed on the screen, the new audio module marked as "Beta Testing." She had three more tracks to test. Each one was different, calibrated for different exercises, different positions, different intensities.

She couldn't wait.

Across the gym, Leanna emerged from the changing room, her hair damp, her face still flushed. She caught Jade's eye and smiled, a small, private smile that held a question Jade wasn't ready to answer.

"See you Thursday," Leanna called.

"Thursday," Jade confirmed.

She watched Leanna walk out of the gym, then sat down on the mat where Leanna had just been. The surface was still warm, still damp with sweat. Jade pressed her palm flat against it, feeling the residual heat, and closed her eyes.

Her own body was still aching. The arousal hadn't faded. If anything, it had intensified, settling into a deep, persistent throb that made it hard to think about anything else. She'd have to take care of it before her next client arrived. A quick trip to the bathroom, a few minutes alone with her hand and her imagination.

But even as she planned it, she knew it wouldn't be enough. Not anymore. Not after what she'd just seen. Not after what she'd just felt.

The app was going to change everything.

She just hadn't decided yet whether that was a good thing.