Laila turns from the window.

She doesn't hurry. That's the first thing Sara registers — the unhurried quality of it, the way Laila crosses the room like the room belongs to her, which it does, like Sara's body belongs to her, which it does too. The gray light from the window slides across her as she moves, over her shoulder, down the long line of her back, and Sara watches from flat on the mattress with her arms still flung out and her legs still open and her cunt still wet and cooling in the air.

Laila's knee comes down on the mattress beside Sara's hip. The mattress dips. Sara's body rolls a fraction toward the weight of her, and she catches herself, holds still, waits.

Laila doesn't look at her cunt. Sara knows this because she's watching Laila's face, the way she's learned to, and Laila's eyes go from Sara's face to her hand — her left hand, lying palm-up on the wet sheet — and stop there.

"Give me your hand."

Sara lifts it. Her arm is heavy, still loose from the last orgasm, and it takes a second longer than it should. Laila takes her wrist and pulls the hand up between their bodies, and Sara's fingers are still damp from the sheets and from herself, and Laila's grip is dry and exact.

She turns Sara's hand over. Palm up. Then she presses Sara's two middle fingers together, folds the others down with her thumb, and lowers the hand — not to Sara's cunt, not into her, but flat against her own clit. The pad of Sara's index finger lands on the swollen knot of it and Sara's whole body flinches, hips jerking up off the mattress an inch.

"Stay flat," Laila says.

Sara's hips come back down. The sheets are wet under her ass, cold now, and her clit is hot under her own fingertips and she can feel her pulse in it, a throb she can count.

Laila's hand stays on Sara's wrist. Not gripping. Resting. The weight of it there is the whole rule, and Sara understands the rule before Laila says it.

"You're going to work yourself," Laila says. Her voice is low and even, the same voice she used in the hallway. "Slow circles. You count every one out loud. When I say stop, you stop — hand off, flat on the sheet, and you hold it there until I say go again."

"Yes ma'am."

"How many?"

Sara's mouth is dry. "I don't—"

"As many as I want. That's the answer." Laila's thumb moves on her wrist, one slow stroke over the tendon, and it shouldn't feel like anything and it does. "Start."

Sara starts.

She moves her fingers in a circle, slow, the way she's been told, and the first pass drags her own slick up over her clit and the sensation goes up her spine and out through her shoulders and she hears herself breathe out hard through her nose.

"Count."

"One."

Another circle. Her finger slides easier this time, wetter, and the pressure is right at the edge of too much and she keeps it there because that's what slow means.

"Two."

"Three."

Laila watches her hand. That's where her eyes are — on Sara's fingers, on the small wet circle they're making, and Sara can see her face from below and there's nothing on it, no approval, no hunger, just attention. It's worse than approval. It's worse because it means Laila is measuring.

"Four." Sara's voice catches on it. "Five."

The heat is building the way it built before, low and steady, spreading out from her clit into her cunt and down into her thighs, and her thighs want to close and she holds them open because Laila hasn't said she can close them and because the open air on her cunt is part of it now, part of the ache.

"Six. Seven."

Her hips are starting to move. Small rolls, involuntary, meeting her own hand, and she can hear the wet sound of it now — her fingers in her own slick, the soft click of it, loud in the quiet room.

"Eight."

"Stop."

Laila's thumb presses down on her wrist. Sara's hand comes off her clit and slaps flat on the sheet beside her hip, fingers spread, and the loss is so sharp her eyes water. Her cunt clenches around nothing. She can feel it — the empty squeeze, the wet, the throb that has nowhere to go.

"Breathe," Laila says.

Sara breathes. It comes out ragged. The gray light on the ceiling hasn't moved.

"What number were you on?"

"Eight."

"And what did you want?"

Sara's jaw works. The words are there and they're not there. She wants to come. She wants Laila's mouth. She wants Laila's hand instead of her own. She wants to be told she's good. None of it comes out.

"I asked you a question."

"I wanted to come."

"You don't get to want yet." Laila shifts her weight, and her knee presses deeper into the mattress beside Sara's hip, and the dip in the bed rolls Sara another inch toward her. "You get to work. Go."

Sara's hand comes back. Two fingers, pressed flat, and this time the first circle makes her gasp — the flesh is swollen now, tender, and every pass is a small bright wire of sensation straight up into her gut.

"One."

"Two."

"Three."

She's wetter than she was. She can hear it, that wet sound, and she can feel it smear across her inner thigh when her hand rocks too far. Laila can hear it too. Laila is still watching her hand, and Sara watches Laila watch, and the being-watched is its own pressure, tightening in her chest.

"Four. Five."

"Six."

Her breath is breaking on the downstroke now, a little huff at the bottom of every circle, and she can't stop it. Her thighs are trembling. Not shaking yet — trembling, a fine buzz in the muscle, and she presses her heels into the mattress to steady them and it doesn't help.

"Seven. Eight. Nine—"

"Stop."

The thumb. The hand off. The slap of her palm on the wet sheet. Her cunt clenches again, harder this time, and a sound comes out of her — not a word, just a sound, high and short.

Laila doesn't move. Doesn't touch her. Doesn't praise her.

"Nine," Laila says. "You're getting closer faster. That's good. That means you're listening to your body."

"Yes ma'am."

"It also means you're going to have to work harder to stop." Laila's mouth curves, just at one corner. It's not a smile. It's the thing that comes before one. "Go."

Sara goes.

The third round is worse. The third round, her fingers find her clit already slick and already swollen and every circle is a small cruelty, because she's right at the edge from the start, right there, and she has to hold the pace slow and count and not press down and not go faster, and her whole body is arguing with her hand.

"One. Two. Three."

The wet sound is loud. The room has nothing else in it — no traffic, no clock, just her fingers in her own cunt-wet and her voice counting and Laila's breathing, steady, above her.

"Four. Five."

Her hips are rolling now, off the mattress and back, meeting her hand, and she can't hold them flat anymore, and Laila doesn't correct her. Laila lets her. That's worse too. That means Laila wants to watch her lose the flatness.

"Six. Seven. Eight—"

"Stop."

She stops. Her hand hits the sheet. Her thighs are shaking now, actually shaking, and there's sweat in the crease under her breasts and her breath is coming in short pulls through her nose and she can feel her own pulse in her clit like a second heartbeat, and she is so close that the stopping is almost a relief and almost a wound and she can't tell which.

"Look at me."

Sara looks up. Laila's face is above her, upside down from where Sara's lying, and the light from the window is behind her head so her face is in shadow, and Sara can still see her eyes. Dark brown. Steady. Not kind.

"You came without permission earlier."

Sara's stomach drops. "Yes ma'am."

"I told you it would cost you."

"Yes ma'am."

"This is the cost." Laila's thumb moves on her wrist again, that same slow stroke, and Sara's whole arm shivers with it. "Every time you get close, you stop. Every time you stop, you lose the number. You start over. And you don't get to come until I decide you've earned it back."

"How many—"

"As many as it takes." Laila's voice doesn't change. "You wanted to come. Now you get to work for it. Go."

Sara's hand comes back.

"One."

The fourth round, she cries. Not sobbing — just water at the corners of her eyes, leaking out and running down into her hair, and she keeps counting anyway because stopping to wipe her face isn't in the rules.

"Two. Three. Four."

Her clit is so swollen now that the pad of her finger finds it without looking, a hard little knot under the hood, and every circle is a bright flare and every flare is a step closer to the edge she's not allowed to cross.

"Five. Six."

Her voice cracks on six. She hears it crack. Laila hears it crack. Neither of them says anything about it.

"Seven. Eight. Nine. Ten—"

"Stop."

The hand off. The slap on the sheet. The empty clench. The sound that comes out of her this time is a whimper, and she hates it and she can't help it, and her hips are grinding down into the mattress now, seeking friction that isn't there, and Laila watches that too.

"Ten," Laila says. "You're fighting it. That's fine. Fighting it is part of the work." She shifts again, and this time she moves her knee off the mattress and settles her weight back on her heels, so she's sitting beside Sara's hip and looking down at her, and Sara can see her whole face now, lit from the side, and there's something in it Sara hasn't seen before — not softness, exactly, but attention that has teeth in it. "But you're going to lose. You know that."

"Yes ma'am."

"Say it."

Sara's throat works. "I'm going to lose."

"Say what you're going to lose."

A long breath. The water on her face is cooling. "I'm going to lose the—" She doesn't have the word. She has never had the word. "I'm going to lose control."

"Good." Laila's hand comes off her wrist, finally, and Sara's arm feels weightless and wrong without it. "Go."

"One. Two."

The fifth round, she doesn't make it to ten. She makes it to seven, and on seven her whole body arches, hips up off the mattress, and she feels the crest coming, feels it gathering at the base of her spine, and her hand doesn't stop — it can't stop, it's a reflex, it's the body taking over — and Laila's hand comes down on her wrist hard and pins it flat to the sheet.

"No."

Sara's hips are still up. Her cunt is clenching on nothing, over and over, and the crest breaks against the inside of her with nowhere to go, and the sound she makes is not a word. It's a long, low, broken thing, and it goes on longer than she wants it to.

Laila holds her wrist down until her hips come back to the mattress. Then she lets go.

"That was seven," Laila says. "You tried to steal eight. That's the second time today you've tried to take something I didn't give you."

Sara's chest is heaving. "I'm sorry—"

"Don't apologize. Apologizing is for people who didn't mean it." Laila's voice is still low and even and it is somehow worse than if she'd raised it. "You meant it. So you'll pay for it. From one."

"Yes ma'am."

"One."

The sixth round is the one that takes her apart. Her fingers are shaking so badly that the circles aren't circles anymore, they're stutters, and she has to slow down to make them clean and slowing down means feeling every single pass, every drag of slick flesh, and her breath is coming in short hard pulls and her thighs are shaking hard enough to move the mattress.

"Two. Three."

She can hear herself. She can hear the wet click of her own fingers and the small grunt at the bottom of every breath and she can hear Laila breathing above her, steady, and the contrast between them is the whole shape of the room.

"Four. Five. Six."

"Good," Laila says. Quietly. Almost to herself. "That's good."

"Seven. Eight."

The edge is right there. She can feel it in her cunt, the tightening, the pull, the way her whole pelvis is drawing up toward her hand like a fist closing. She keeps the pace. She keeps the count. She doesn't press down.

"Nine. Ten. Eleven—"

"Stop."

She stops. Her hand slaps the sheet. The clench comes, and the whimper comes, and the tears come again, and she lies there with her chest heaving and her legs open and her cunt empty and aching and slick, and she does not move.

Laila doesn't say anything for a while. She just looks at her. And Sara, flat on the wet sheets with her own hand on the sheet beside her and her own slick drying on her fingers, feels the weight of being looked at like something being appraised.

"You're doing well," Laila says finally. "You're not doing well enough. But you're doing well."

"Thank you, ma'am."

"Don't thank me yet." Laila's hand comes back to her wrist, and this time she doesn't rest it there. She lifts Sara's hand, turns it over, and looks at the fingers — slick, glistening, the two middle ones wet to the second knuckle. She holds them up in the gray light. She looks at them for a long moment.

Then she lowers the hand back to Sara's clit and presses it there herself, palm over the back of Sara's hand, and Sara's whole body jolts.

"Last round," Laila says. "Same rules. Count out loud. But this time, when you get to the edge — you don't stop."

Sara's breath catches. "Ma'am—"

"You don't stop, and you don't speed up. You hold the pace, you keep the count, and you come when the count takes you there." Laila's hand is warm on the back of hers, and her voice is right above her, low and even. "If you speed up to get there faster, you lose it. If you slow down to hold it off, you lose it. You go at the pace I set, and you let it happen when it happens."

"Yes ma'am."

"Go."

"One."

Laila's hand stays on the back of hers. It doesn't push. It doesn't guide. It just stays, a weight and a warmth, and Sara can feel every tendon in Laila's hand through her own skin, and the circles are slow and clean and she counts them out loud.

"Two. Three. Four."

The heat is already there. It never left. It's been sitting in her the whole time, banked, and now it's coming up fast because there's nothing holding it back, no stop coming, and the knowledge that there's no stop coming is its own kind of pressure.

"Five. Six. Seven."

Her hips are rolling. Her thighs are shaking. The wet sound is loud and steady and she can hear Laila's breath above her, and it's not steady anymore — it's a little faster, a little shallower, and Sara hears that and it goes straight into her gut.

"Eight. Nine. Ten."

The crest is coming. It's not a surprise this time, it's a wave she can see, and she holds the pace and keeps the count and doesn't speed up, doesn't slow down, and her voice is shaking on every number now.

"Eleven. Twelve. Thirteen—"

It takes her on thirteen.

Her whole body arches off the mattress, hips up, heels digging in, and the orgasm comes up through her cunt and out into her thighs and her belly and her chest, and she hears herself make a sound that isn't a word, a long broken moan that goes up at the end, and her fingers keep moving because the pace is the pace and she doesn't stop, and the clench keeps coming, wave after wave, and Laila's hand stays on the back of hers the whole time.

She comes for a long time. Longer than she expects. The waves keep rolling up out of her and she keeps circling her clit through them, slow, because that's the rule, and every pass is almost too much and she does it anyway, and by the end she's crying properly, tears running into her hair and her ears, and her thighs are shaking so hard they're almost vibrating.

Then it's over. The last wave rolls out of her and leaves her flat on the mattress with her hand still on her cunt and her breath coming in sobs and her whole body loose and trembling and wet.

Laila's hand lifts off the back of hers.

"Hand on the sheet," Laila says.

Sara's hand comes off her clit and lies flat on the wet sheet. Her fingers are slick and shaking.

Laila sits back on her heels beside her and looks down at her, and Sara lies there and lets herself be looked at, and the gray light on the ceiling has moved a little, a bar of it sliding down the plaster, and she watches it and breathes and waits.

"Thirteen," Laila says. "You held the pace."

"Yes ma'am."

"Good girl."

The words land somewhere under Sara's ribs and stay there. She doesn't say anything. She can't. She just lies on the wet sheets with her legs still open and her hand still flat on the sheet and her own slick drying on her fingers, and Laila looks at her for a long moment, and then Laila reaches down and does something Sara doesn't expect.

She takes Sara's wrist and turns the hand over and looks at the two wet fingers again, in the light, the way she did before.

"You taste like the work you did," Laila says. "Remember that."

She lets the wrist go. It falls back to the sheet.

And then Laila stands up off the mattress and walks back toward the window, and Sara lies exactly where she is, legs open, hand flat, and does not move.