Her sister called on the twelfth day.

“You missed Mom’s thing.”

Lea was at her desk with the Hadley disclosure schedules spread across it, and she looked at the calendar on her second monitor and saw it — Mom 68 — Dana’s — 1pm — on Sunday, in a block of time she had spent in Abby’s back room with her hands on the sink.

“I’m sorry. Work.”

“On a Sunday.”

“It’s Hadley. It’s bad.” That was even true. “I’ll call her.”

“She asked if you were seeing someone.” Dana laughed a little. “I said God, I hope so, she’s been a nun since Craig.”

Lea’s thighs tightened under the desk. The plate shifted. Somewhere in a stone house on a bluff above the river, a line ticked up on a screen.

“I’m not,” she said. “I’ll call Mom.”

That night, in her report, she wrote: My sister called about Mom’s birthday. I’d forgotten it because I was with you. She said I’d been a nun since Craig. I laughed, but I thought about the fact that I am more celibate now than I’ve ever been and I’ve never been less like a nun. I wanted to three times during the call.

Abby’s reply took longer than usual.

Abby You should have told me about the birthday. I’d have let you go. I don’t want you losing your family over this.

And then, a minute later:

Abby Though I notice you didn’t want to go.

Lea read that one a lot of times. She did not reply to it. Abby didn’t ask her to. But a third message came anyway, ten minutes later, while Lea was still sitting on the edge of the bed with the phone in her lap.

Abby She called you a nun. Your own sister. Think about that. Nineteen months, and the only thing she’s ever said about your body is a joke at your expense. Has she once asked you what you want? Has anyone, before me?

Lea started to type That’s not fair, Dana’s — and stopped, because she was trying to remember a time Dana had asked, and she couldn’t. She was sure there had been one. She couldn’t find it.

I’m the only one who asks, Abby wrote. Goodnight.

Two weeks later, when Dana texted about Thanksgiving, Lea looked at the message for a long time and then wrote back that work was impossible this year, she was so sorry, she’d make it up at Christmas. She sent it and felt — she examined the feeling carefully, the way she’d been trained to examine everything now — relieved. Lighter. As if she’d decided something for herself, for once, instead of for her family.

It did not occur to her until much later that she had never in her life skipped Thanksgiving, or that she had not mentioned the invitation to Abby at all, and had not needed to.

The haptic came when it was inconvenient. Abby had promised that and Abby kept her promises.

It came in the elevator with three partners. It came while she was on the phone with opposing counsel, a single soft tap at the exact moment she said “my client’s position,” so that the word position cracked in the middle and she had to pretend she’d coughed. It came in bursts: twenty minutes of nothing, then a slow pulse, then another, then a rolling patter like fingertips drumming, building, building, until her knuckles were white on the armrest and her breath was coming in short controlled sips through her nose — and then nothing. Silence. She would sit there on the cliff edge of it with her eyes shut, and the phone would buzz on the desk, and she knew without looking what it would say.

Abby Good girl.

Or once: Your colleague just walked past your door. You held your breath. Did he notice?

She stopped being able to wear certain skirts — the slim grey ones — because she could not trust what her face would do in them. She started keeping a cardigan on her chair to tie around her waist. She started, on bad days, going back to the disabled stall on twenty-nine where nobody went, and standing there with her forehead against the cool partition and her hand pressed flat over the shield through her skirt, pressing, not because it helped — it did not help, the shield was designed so that pressing did nothing but remind — but because she had nowhere else to put it.

And she started, without ever deciding to, waiting for it. Listening for it. Every quiet moment at her desk had a held breath in it now. When it didn’t come for a whole morning she felt something that was almost loneliness.

She put that in a report. She hadn’t meant to. It came out of her fingers at 10:14 p.m. and she looked at it and couldn’t make herself delete it.

Lea It didn’t happen today and I missed it.

Abby’s answer: I know. I was watching. You checked your phone forty-one times.

The next night, she tried to take it back.

It had been a bad day — the haptic during a call with the general counsel at Brennan, a tap at the worst possible syllable, her face flaming in front of a junior associate — and she sat on her bed at ten with her jaw tight and typed, for the first time, something that was simply true.

Lea I didn’t want it today. It was humiliating. I didn’t like it and I don’t want it at work again.

The reply came in under a minute. It was an image: a screenshot of her own telemetry, 2:47 to 2:53 p.m., the call. Her heart rate climbing. Her skin conductance going vertical. And a small, sharp spike in the middle of it that Lea recognized, now, the way she recognized her own signature — the shape her body made when it was very close.

Under it, Abby had written: Try again. Honestly this time.

Lea looked at the graph for a long time. I was embarrassed, she thought. That’s what embarrassment looks like. That’s adrenaline. That’s — But she knew what adrenaline looked like on the graph. Abby had taught her. This wasn’t that. Or it was that too. Or it had started as that and turned into the other thing while she was busy being embarrassed, and she hadn’t noticed, and the sensor had.

She deleted what she’d written. She typed: I was humiliated, and I was close. Both. I’m sorry.

Better, Abby wrote.

After that, she found she had begun opening the app before she wrote her reports. Just to check. Just to make sure she didn’t get anything wrong. It was a week before she noticed she was doing it, and by then she couldn’t remember how she used to know what she’d felt without looking.

On the third Saturday, Abby said: “Stay the weekend.”

They were on the terrace. It was October now, and colder, and Abby had brought out blankets. Lea had come straight from the office in the grey wool trousers that were the only ones that didn’t show anything, with a bag she’d packed that morning without letting herself think about why.

“Okay.”

“I want to try something. You can say no.”

“You keep saying that.”

“I keep meaning it.” Abby turned her glass. “That’s what makes it count when you don’t.”

The bedroom was the one room in Abby’s house Lea had still never been in. It was spare: a low wide bed with a dark wood frame, a dresser, a chair. On the bed were four leather cuffs, laid out in a neat row, with short chains clipped to their D-rings. They had no buckles. Where a buckle would be, each had a small steel hasp, and beside each one, open, lay a tiny brass padlock. Lea stopped in the doorway.

“You had these,” she said. “Before.”

“For a while.” Abby stepped past her and picked up one of the cuffs and turned it over in her hands. “I didn’t know if I’d ever use them on you. I bought them the week of your divorce.”

Lea looked at her.

“That’s not the romantic thing it sounds like,” Abby said. She lifted the chain from around her own neck — the one that held the key to the shield — and Lea saw that there was a second key on it now, smaller, brass. “Same chain,” Abby said. “Everything that locks on you, I keep in one place. Take your clothes off.”

Lea undressed. Abby didn’t. She stood there in her cashmere and her good wool trousers, her watch still on, and watched, and that was the first thing Lea understood about how the night would go: one of them would be naked, and it would not be Abby.

She was spread on her back. Wrists to the two upper corners of the frame, ankles to the two lower, the chains short enough that she could move a few inches in any direction and no more. Abby had done it with the same unhurried efficiency she did everything — testing each cuff with two fingers under the leather, checking her hands for color, asking too tight? and accepting the answer and then drawing the left wrist one hole tighter anyway before she closed the hasp. Then the padlock. A small, distinct, final sound, four times over, one at each corner of the bed. Lea had heard the shield lock a dozen times now. It was different hearing it at her wrists.

And then, last, Abby had held up a soft black blindfold where Lea could see it.

“There’s a hood in the back room,” she said. “Leather. Laces. You’d hear your own breathing in it and nothing else.” She smoothed the blindfold between her fingers. “Not tonight. You’re not ready for what you’d hear in it.”

She put the blindfold over Lea’s eyes, and the world shrank to the shield and the locks and Abby’s voice.

“Pull.”

Lea pulled. The chains rang softly against the frame. Nothing gave.

“Good. Now I want you to understand something.” The mattress dipped beside her. Lea felt wool against her bare hip — Abby’s trousers — and the cool band of a watch against her ribs. Abby’s fingers traced a line from her collarbone down between her breasts, across her stomach, and stopped at the top edge of the shield. “Until now, you’ve had a choice every single time. You could have called me and said stop. You could have broken the lock and paid for it. You could have walked out of the back room. You didn’t. But you could have.” The fingers moved down over the plate and pressed, and Lea arched. “Tonight you can’t. Tonight it’s just me. Do you understand?”

“Yes.”

“If you want out — really out — you say ‘Brennan.’ That’s the only word that works. Anything else I’ll ignore. ‘Stop’ I’ll ignore. ‘Please’ I’ll definitely ignore.” A pause. “Say it back.”

“Brennan.”

“Good. Now forget it.”

The click of the key. The electronic second click. The shield lifted away — the plug she left exactly where it was — and Lea, blind, felt the bedroom air hit her and her hips came up off the mattress as far as the chains would let them.

Abby did not touch her for a long time.

That was the first thing, and it was the worst thing, and it went on and on. Lea lay spread and open and soaked with nothing on her at all, and she could hear Abby moving around the room — a drawer, the chair creaking, a glass set down — and every sound made her flinch toward it. Her clit pulsed in the air. She could feel her own wetness running down, slowly, to the sheet. Minutes went by. She lost count of them. She began to shake from nothing.

“Abby.”

No answer. The chair creaked.

“Abby, please—”

“I’m watching,” Abby said, from across the room. “I’m sitting here watching you. You’re very beautiful like this. You’re dripping on my sheets.” A sip of something. “Your hips keep moving. Did you know? Little circles. Like you’re trying to fuck the air.”

Lea’s face burned under the blindfold and she made herself stop. A minute later she realized she was doing it again.

When Abby finally touched her, it was with something cold and hard and rounded — the head of a wand, pressed flat against the inside of her knee. Then it switched on.

It went up her thigh slowly. Not even on its lowest setting, Lea thought, through the roar; it could not possibly be on its lowest setting, it was a thunderstorm against her skin, and it came up the inside of her leg one inch at a time over what felt like a geological age, and she pulled at the cuffs and the chains rang and she heard herself making noises she would not have believed. It reached the crease of her thigh. It stopped. It sat there, a half-inch from her, buzzing into the tendon.

“Ask.”

“Please. Please, God, please put it on me, please, Abby—”

It moved. A half-inch. Onto her.

She came apart almost instantly — not coming, not yet, but everything below the waist became one hot climbing scream — and she was there, there, in four seconds, five, the wave gathering —

“Close,” she gasped. “Close—”

It was gone.

She thrashed. She actually thrashed; the cuffs bit her wrists and the bedframe knocked against the wall and she heard herself sob no no no no as the edge hung over her and then, slowly, slowly, pulled back.

“That’s one,” Abby said.

Lea would remember that night only in pieces, afterward. She could not have put it in order for a report.

The wand on the lowest setting for what felt like an hour, never quite enough, never moving, a slow simmer that kept her suspended on the edge without tipping her over or letting her down, until she was begging for Abby to take it away, please, please, I can’t, take it off — and Abby saying I thought you wanted it on you.

Abby’s mouth. Once. Her tongue flat and slow, from the bottom to the top, one stroke, and Lea screaming into the dark, and Abby lifting her head and saying that’s seven into the inside of her thigh.

Ice. She had no idea where Abby had gotten ice. A cube drawn down her stomach and pressed, briefly, horribly, directly against her clit, so that the edge she’d been riding collapsed in a shocked gasp and then — worse — came roaring back as soon as the cold was gone.

Abby’s fingers inside her, and her voice very close to Lea’s ear, asking, Who do you belong to, and Lea not answering, and the fingers stopping, and Abby waiting — patient, patient, motionless, buried in her — until Lea said you, you, you in a voice like a broken thing, and the fingers starting again.

Somewhere after the tenth, she tried to say the word. Lea would remember that, too. She got as far as the first consonant of it — Br— and stopped. Not because she was afraid to. Because she knew, lying there blind and chained and wrecked, that if she said it Abby would stop, would unchain her and hold her and be kind, and it would be over, and she would go home. And she found that she could not bear that more than she could not bear this.

Abby heard it. The first consonant. Lea knew she’d heard it because everything went still.

“Say it,” Abby said quietly, “or don’t.”

Lea didn’t.

“Good girl.” Something in Abby’s voice that hadn’t been there before — low and private and satisfied, the sound of a lock catching. “Then you won’t be needing it.”

Something pressed against Lea’s lips. Rubber, round, smelling faintly of the drawer it had been kept in. “Open.”

She didn’t. Abby pinched her nose shut — calmly, without hurry — and waited, and when Lea finally gasped, the ball was behind her teeth and the strap was being buckled at the back of her skull, tight, tighter. Then Abby’s fingers pried open her right fist, chained above her head, and pressed something small and cold into it. Metal. Round. It made a tiny bright sound as her fingers closed.

“A bell,” Abby said. “Drop it, and everything stops. Instantly. I’ll hear it from anywhere in the room.” She closed Lea’s fingers around it, one by one. “Hold it, and nothing does. Do you understand? Nod.”

Lea nodded. The bell rang faintly in her fist.

“Good. Now you don’t have to decide anything with your mouth anymore. Just your hand.” Abby’s breath was warm at her ear. “Let’s see how long you hold on.”

She lost count after fourteen. Abby didn’t. The last one, Abby held her on the very edge with two fingers barely moving, so slowly, so exactly, for a minute that went on and on, and Lea was not breathing, and her whole body was a bowstring, and Abby said into her ear, Do you want to come? and Lea sobbed something wordless and desperate around the gag, and the bell shivered in her fist and did not fall, and Abby said I know, and took her hand away.

She was locked again before the blindfold came off. She felt it go on — the plug first, worked back into her with slow relentless pressure while she sobbed around the gag, then the cool plate against her, the click, the second click — while she was still chained and blind and shaking, and something in her that had been holding on all evening let go at the sound and she wept the way she had not wept since the divorce, great ugly gulping sobs that the gag turned into wet animal noises.

Abby unbuckled the gag. Then the padlocks, one by one, the small brass key turning four times, and the cuffs falling open, and Abby checking each wrist for color the way she’d check a weld. Then the blindfold.

She did not gather Lea up. She sat on the edge of the bed, a foot away, and let her cry, and looked at her phone.

“Your pulse is still a hundred and eight,” she said eventually. “It’ll be a while.”

“I hate you,” Lea said into the pillow.

“That’s fine.” Abby didn’t look up. “It doesn’t change Wednesday.”

Lea lay there and shook. After a long time — she didn’t decide to; her body did it without her — she crawled the foot of mattress between them and pressed her wet face against Abby’s hip — against wool; Abby was still fully dressed, had been dressed the entire time, had not so much as pushed up her sleeves — and Abby let her. She put one hand on Lea’s head, not stroking, just resting there, heavy, the way you’d rest a hand on a dog that had come to you after being scolded.

“You almost said it,” Abby said. “Brennan.”

“I know.”

“Next time you will. And I’ll stop. And that’ll be the last time, Lea, because I don’t play with people who stop.” Her fingers tightened slightly in Lea’s hair. “So you’d better be very sure, when you say it, what you’re choosing instead.”

Lea closed her eyes. She understood that it was a threat. She understood that the word was still real — that if she said it, everything would stop, the cuffs and the shield and the plug and the back room on Wednesdays, all of it, gone — and that this was precisely what made it unsayable.

She fell asleep against Abby’s hip. Abby didn’t move her. When she woke at four, alone, her hands were cuffed together in front of her and tethered to the headboard, and she had no memory of Abby doing it.

In the morning, on her phone, there was a single notification from Halo — the first one it had ever sent her directly. It was a number, white on black, nothing else.

23.

It was the number of days she had been locked. She understood, looking at it, that Abby had wanted her to see it. That it would be there every morning now.

She understood, too, that she had stopped wondering how high it would go.

HALO BIOMETRIC — PARTICIPANT NOTES (PRIVATE)

Subject: L.
Day: 23.
Entry by: A.M.

First full restraint session. Bed, four-point, padlocked. Blindfold. Gag from edge 11. Bell held throughout.

Sixteen edges. Responds more strongly to withdrawal than to stimulus — peak HR consistently 3–4 seconds after I stop, not before. She comes closest at the moment it’s taken away. Increase withdrawals. Shorten intervals.

At edge 10 she began the safeword. One consonant. Stopped herself. HR at that moment 141 — higher than any edge. The decision not to say it aroused her more than anything I did with my hands. Note for future design: the exit is the instrument. Never remove it. Make it cost more.

She came to me afterward on her own. Allowed it. Did not hold her. Hand on head only.

She said “I hate you.” Conductance rose as she said it.

Reports: first attempt at an honest refusal on day 19 (“I didn’t want it today”). Sent her the trace. She rewrote it herself within four minutes. She now opens the app before she writes. She believes the data over her own recollection. Do not point this out to her.

Sister: Thanksgiving declined. I didn’t mention it. Neither did she.

Increase.