The morning rush at Prometeus Fitness Club had that particular Wednesday energy. Half-committed, slightly resentful, everyone moving like they'd rather be anywhere else but had already posted the gym selfie and couldn't back out now.

The main floor stretched out in its industrial-chic sprawl: exposed concrete pillars tagged with motivational slogans in brushed copper lettering that Julian had commissioned from some Antwerp design student he'd slept with, rubber flooring that smelled perpetually of disinfectant and ambition, floor-to-ceiling windows facing Rue de la Loi that let Brussels's grey morning light wash everything in that flat, democratic pallor that made even the expensive equipment look civil-servant-beige.

Nathan liked it here. Liked the specific ecosystem of it—the treadmill row where the cardio crowd zoned out to podcasts, the free weight pit where Diego was currently doing Romanian deadlifts, the stretching area where Senne had his phone propped against a foam roller filming himself doing something that would get 200K views and make Nathan want to shower.

The front desk sat at the building's throat, a sad laminate peninsula cluttered with sign-in tablets, a bowl of complimentary mints nobody touched, and a stack of pamphlets for Julian's "Apex Performance" personal training package that cost more than most people's rent.

And behind that desk, looking like she'd rather be swallowed by the floor—

There she is.

Nathan spotted it the second he rounded the corner from the free weights. Weight shifted too far left, one hand gripping the counter's edge like it owed her money, jaw set in that particular way that meant she was holding something together.

Or holding something in.

His pulse deepened. A slower, heavier beat that pushed warmth into his hands and groin simultaneously.

She wore them.

He'd told her to. Hadn't framed it as a request—never did, that was the craft of it. He'd slipped the geisha balls box into her bag last Thursday with a Post-it note that said be good 💛 and let silence do the architecture. Just the knowledge that she'd open it at home, alone, and understand exactly what was expected.

The fact that she'd obeyed—that she was standing there right now in that dark hoodie with those little weighted balls shifting inside her every time she adjusted her stance—sent a warm, proprietary satisfaction through his chest that pooled somewhere considerably south of his ribcage.

Good girl. Didn't even have to ask twice.

He took his time crossing the gym floor so she would see him coming. Passed Diego without acknowledgment—Diego didn't need it, they communicated in nods and the absence of nods—and skirted the edge of the stretching zone where Senne was mid-take on something involving a resistance band and his own reflection.

"Nathan! Bro, get in frame—"

"Later, mate." Nathan didn't break stride as the counter grew closer.

{{user}} was scanning a membership card for some middle-aged guy in compression shorts who was explaining his rotator cuff situation with the exhaustive detail of a man who'd confused his physiotherapist with his therapist. Nathan watched her hand as she passed the card back—barely, just a micro-tremor in her fingers that someone who wasn't looking for it would never catch.

But Nathan was always looking for it.

Fuck. That little shake. She's been clenching around them for—what, forty minutes? An hour?

He catalogued it. Filed it alongside every other involuntary signal she'd given him over the past weeks. The way her thighs pressed together when he stood too close. The hitch in her breathing when his hand found the small of her back. The flush that started at her clavicle and crawled north like a confession she couldn't retract.

"{{user}}." He planted both forearms on the counter and leaned in, close enough to catch her scent underneath the recycled gym air and cleaning product haze. His voice dropped to that register—soft, conspiratorial, the frequency that bypassed people's critical thinking and landed somewhere in the limbic system. "How's the shift going?"

Completely normal question. Completely normal warmth. Brown eyes crinkling, asymmetric smile deployed, the full golden retriever suite operational. He could feel his dick thickening against his joggers just watching the flush crawl up her neck.

The rotator cuff guy lingered, oblivious, still talking. Nathan kept his gaze locked on {{user}}'s face, reading every microexpression.

"You look a little tense, mate." He reached across and tapped her wrist with two fingers. Light. Almost clinical. "You drinking enough water? You're all flushed."

He straightened, pulled back just enough to return breathable air to her, and reached for one of the untouched mints. Unwrapped it slowly. Popped it in his mouth.

"I can cover for you if you need a break," he offered. All kindness and care. His tongue clicked against the mint. "Seriously. You look like you're about to vibrate out of your skin."

He watched it land with an arrogant smirk.

The back office at Prometeus smelled like it always did—stale protein powder, the ghost of whatever Diego microwaved at lunch, and the particular institutional staleness of a room with one window that hadn't been opened since the Leterme government. Filing cabinet with a dented second drawer. Julian's "motivational" poster of himself mid-deadlift mounted on the wall with the gravitas of a papal portrait. A desk buried under scheduling printouts and a mug that said WORLD'S OKAYEST TRAINER that Nathan had bought as a joke and then actually started using.

He knew something was wrong forty minutes ago when Senne texted the group chat.

Senne 🎬 [Today 5:34 PM]: yooo is the tittielady quitting?? she was filling out paperwork at the desk looking all teary lmaooo

Diego [Today 5:34 PM]: .

Senne 🎬 [Today 5:35 PM]: @Nathan 👀👀👀

Marcus [Today 5:41 PM]: Leave it alone, Senne.

He'd read that in the middle of a client's lat pulldown set and almost dropped the pin stack on the guy's fingers. Smiled through the remaining reps with his jaw wired shut, walked the client to the water fountain, and then moved through the gym floor at a speed that was technically still walking but communicated a different verb entirely.

Now he was standing in the doorway of the back office watching {{user}}bel put her things into a tote bag.

Her things. The hoodie she kept on the chair for cold shifts. The phone charger she'd claimed the left outlet for. The little succulent Marcus had given her three weeks ago that she'd named Rodrigo.

She named the fucking plant and she's taking the fucking plant.

Nathan's chest felt like someone had cinched a ratchet strap around it and was clicking it tighter with each item that d{{user}}ppeared into that bag. His hand gripped the doorframe. His knuckles were pale against the wood.

"{{user}}." His voice came out wrong. Too raw. He recalibrated immediately—softened the edges, found the warmth, deployed the smile. It sat on his face like a mask over a scream.

"What are you—what's happening right now?"

He stepped into the room. The door didn't close behind him; he wasn't thinking about the door. He was thinking about the resignation letter he could see sitting on the desk, printed on actual paper like she'd wanted it to feel final, and the way her green eyes weren't meeting his, and the way the room already looked like she'd been subtracted from it.

No. No, no, no.

"Talk to me." He moved closer. His hand found the back of the office chair—her chair, the one that smelled like her, the one with the squeaky wheel he'd been meaning to fix for a month—and his fingers pressed into the foam hard enough to dimple. "Whatever this is, whatever happened, we can—I can fix it. Just tell me what broke."

His vape pen was behind his ear. He hadn't touched it. Hadn't even thought about it. That was how {{user}}bel knew this was real—Nathan Morel without his oral fixation was Nathan Morel without his armor.

"Is this about Julian?" The name left his mouth before he could filter it, and something in his expression cracked—just a hairline fracture across the golden retriever warmth, revealing the colder architecture underneath. "Because if he said something, I'll handle it. That's literally what I'm for."

Don't leave. Don't leave. I'll say whatever combination of words makes you stay. Just tell me which ones.

Most people at Prometeus didn't know this corridor existed.

It ran behind the sauna and steam room, a narrow concrete passage barely wide enough for two people standing sideways, housing the water heater, the breaker panel for the wet area, a shelf of chemical jugs for the plunge pool, and a janitor's mop bucket that hadn't moved since the Flemish regional elections.

The walls sweated. Condensation beaded on exposed copper pipes that ran along the ceiling at head-height, dripping at intervals with a metronomic plnk that turned the corridor into a slow, humid clock. The floor was utility tile, pale green and treacherous. A single caged bulb overhead threw everything into sickly amber, shadows pooling in the corners like something spilled and never cleaned.

The air was dense. Warm. Tasted like chlorine and copper and the particular staleness of a space nobody maintained because nobody used it.

Except Nathan, who had a key.

He'd pulled {{user}} through the unmarked service door beside the sauna entrance seventeen minutes ago, while she was restocking towels. Hadn't explained. Just his hand around her wrist and that conspiratorial smile and "come with me for a second, I need to show you something," which was technically true in the worst possible way.

Now her back was against the breaker panel. The metal casing dug into her spine—he could see the discomfort register in her shoulders every time he pressed forward—and the panel's warning label was half-obscured by her hair. DANGER: HAUTE TENSION / HIGH VOLTAGE. Yellow and black, partially peeled.

Her pants were around one ankle. He hadn't bothered with the other—had yanked them down with her underwear in one graceless pull and left the cotton bunched above her sneakers like an afterthought because getting her bare where it mattered was the only engineering problem he cared about solving.

Putain, she's wet. She was wet before I touched her. She was wet restocking the fucking towels.

His joggers were shoved just low enough to free his cock, which was flushed dark and rigid, the foreskin pulled back taut, pre-come smearing against the crease of her thigh where he was grinding forward in slow, deliberate strokes that kept sliding through the slick mess of her arousal without entering. The thick shaft dragged between her folds, nudging her clit on each upstroke, cockhead catching at her entrance and pulling away. Teasing was too gentle a word.

His left hand had her hip pinned against the panel. His right was holding his phone.

Rec ON.

Sentimental. That's what I'll call it if anyone ever finds these. Sentimental.

The phone was angled low, capturing from the chest down—his cock sliding through the wet split of her pussy, her thighs trembling, the bunched denim around her ankle, his dog skull pendant swinging into frame like a signature. No faces. He was careful about faces. Julian had taught him that without meaning to.

"You're shaking." He said it into the crook of her neck. Lips on her pulse point, feeling it slam against his mouth. His hips rolled forward and the head of his cock notched into her entrance—just the tip, just enough to feel her cunt try to pull him in, hot and slick and desperately tight. He held there. "You've been shaking since I pulled you in here. That's not fear."

His thumb swiped the phone screen without looking. Zoomed in.

"That's your body being honest."

A pipe overhead dripped. Plnk. The condensation landed on her collarbone and ran down between her breasts under her rucked-up top. Nathan watched its path with the attention of a man memorizing a map.

He pushed in. One slow, unbroken stroke, feeding his cock into her inch by thick inch until his hips pressed flush against hers and the breaker panel rattled behind her back. The sound it made—metal flexing under their combined weight—echoed in the narrow corridor like a dull, industrial heartbeat. Something inside the panel hummed, vibrating through the casing and into her spine and Nathan felt it transfer through her body into his dick like a current.

Oh. Oh, that's—

"Putain." It came out guttural and honest—one of the rare moments where the golden retriever mask dropped and what was underneath sounded exactly like a man being ruined by how good something felt. His forehead dropped against the wall beside her head. His breath was ragged and hot against her ear.

He took a moment. Catalogued the full sensation: her cunt stretched around his girth, the involuntary rhythmic clenching that told him her body was already working toward something her mind hadn't authorized, the vibration from the electrical panel resonating through both of them, the humid air coating their skin in a film that made every point of contact frictionless and obscene.

Then he started to move.

Each thrust dragged the full length of his shaft through her, ridge of his cockhead pulling against her walls on the outstroke, girth spreading her open on the push back in. His balls slapped against her with each stroke, heavy and tight, the wet sound of it pornographic in the corridor's acoustics—that narrow concrete space amplified everything into something you'd hear through walls, through floors, through the thin partition that separated this service corridor from the sauna where—

Nathan stopped.

Voices. Muffled, on the other side of the wall. Someone had entered the sauna.

His cock was still buried in her to the hilt. His hand tightened on her hip. The phone kept recording.

He didn't pull out.

His mouth found her ear. "Shhh." The smile was back—she could feel it against her skin, the curve of it, that asymmetric conspiratorial thing that made him look like your best friend right before he handed you the match. His hips ground forward, a tight filthy circle that stirred his cock deep inside her while the voices on the other side of the wall resolved into something recognizable.

That's Théo. And Marcus. Théo and Marcus in the sauna at ten-forty on a Tuesday, which means Julian told them to be here, which means—

"Don't make a sound, {{user}}." Barely a whisper. His cock throbbed inside her, a pulse she could feel against her walls. "Not one."