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2026-08-02 · General

Life with a Girlfriend with Shrinking Powers

Cover for Life with a Girlfriend with Shrinking Powers

The Two-Tug Rule

At twenty-nine, Miles Arden had learned that adulthood mostly meant putting warning labels on things no reasonable person would mistake for safe. Living with Luz Navarro in their third-floor apartment had merely improved his materials.

On Saturday morning, a yellow strip crossed the unplugged countertop mixer: DO NOT PLUG IN—LUZ WORKING. Another blocked its speed dial. A third marked the bright nonslip mat where Luz, twenty-eight and already wearing the fitted work clothes that changed with her, planted both feet.

“Fifteen centimetres,” she said. “Ten minutes.”

Miles checked the exhaust fan, burner knobs, taps, drain plug, door, and mixer cord. “Air still. Water off. Machines dead. Route clear.” He clipped on his own battery radio and checked hers, snug beneath her sleeve, dry and well under the two-hundred-and-fifty-gram limit for things she could take with her. Both were splash-resistant and nothing more. “Radio check.”

“You are standing half a metre away.”

“Radio check.”

Her voice crackled from his speaker. “Your devotion to procedure remains extremely attractive.”

Luz took one controlled breath to a five-count. Nothing Miles did could start the change or stop it. Over the next five seconds she diminished smoothly until she stood fifteen centimetres tall on the mat, still unmistakably the adult woman who had shared his apartment, bills, and terrible weekend breakfasts for four years.

Below half her height, her body would bring her back up on its own at twenty-four minutes, finished or not. Miles started separate timers for twenty and twenty-three, which could warn her and do nothing else. She planned to be done long before either sounded. He opened the shallow emergency tray: flashlight, glucose gel, utility cord, and a dry towel folded into a ramp.

Luz glanced at the card beside the spool. “One tug, stop. Two, pull steadily. Three, give slack. Did you think we forgot overnight?”

“Redundancy saves lives.”

“Are you labeling gravity next?”

“Only the dangerous direction.”

She laughed and climbed the towel into the dry mixer housing. At that size a short fall worried him less than a moving part or a draft. She weighed next to nothing and went up the internal ribs like a ladder, but climbing well never gave her full-sized torque. Their rule was plain: Miles did not touch, lift, enclose, or carry her without a direct request. He steadied the unplugged housing, never her, while she reset its jammed latch with a screwdriver she had held against bare skin as she changed. Held things came down with her. Loose things stayed full-sized, and so did anything she picked up once she was small, which was the whole point of an ordinary cord in the tray.

Eight minutes later she descended without help and stepped onto the mat.

“Returning,” she said. Three slow breaths, then eight seconds of growth restored her ordinary hundred and sixty-eight centimetres. Only when she had finished did Miles offer a hand.

Her fingers trembled faintly against his.

“Cold?” he asked.

“Hungry.” Luz withdrew her hand and reached for toast. “Which is your fault. You turned breakfast into a safety audit.”

They logged it together, eight minutes, slight tremor, hungry, then added toast, water, and a warm mug, because cold or an empty stomach could stall her next chosen return by as much as twenty seconds. The log was meant to be something they both read. Miles reminded himself of that whenever he was the one holding the pen. There would be no second cycle for six hours; trying one sooner could throw her back to full size without warning and leave her wiped out far longer.

Miles looked at the untouched glucose gel, then at the protocol sheet. Checking its boxes was easier than asking why he had seen that tremor before.


The drip beneath the kitchen sink had learned patience.

It waited through breakfast, then tapped once against the basin while they cleaned. Miles crouched and aimed a flashlight behind the fixed toe-kick. A cold-water branch line vanished into the narrow void. Green-white corrosion furred a bend deeper than either of them could reach, and the wood beneath it was dark with damp.

The apartment stop valve turned grudgingly under his hand. The dripping slowed, but did not stop.

Luz knelt beside him. “There’s a quarter-turn handle behind the bend.”

“I see it.” Miles tried reaching through the toe-kick gap and scraped his knuckles. “Maintenance can’t come until Monday.”

“On a fresh cycle, I could inspect it.”

“No plumbing.”

The words came too fast. Her gaze moved from his face to the protocol sheet taped above the counter.

“You actually wrote that in?” she asked.

After a fan had kicked on during a routine two months earlier, Miles had added three new strips to every fan switch. Luz had been safely on the mat across the room, but the sudden current had knocked her flat. He still sometimes woke hearing her radio clatter.

“Water moves harder at your size,” he said. “Cold hits you faster. Pipes have edges, gaps—”

“I know. So say that to me. Don’t just write it in.” Her voice had gone tight. “When did you even write that?”

“It’s one line.”

“About my body.”

He wanted to say he was only trying to keep her safe.

“The fan was a near miss,” he said instead.

“And we changed the fan protocol together.” Luz rubbed her fingers, then tucked both hands beneath her arms. “This isn’t that.”

He noticed the motion. “Has the shaking happened again?”

“I told you. Hungry.”

“That isn’t an answer.”

“Neither is ‘no plumbing.’”

The drip struck the basin between them.

In the end, they agreed to stop using the sink, leave the basin under the line, and wait for Monday. Neither of them mentioned the line on the sheet again. The repair and the argument could both sit until then.


Rain pressed a grey evening against the windows. Six hours after her morning cycle, warmed, fed, and recovered, Luz prepared for a different job: a dropped hinge pin in the dry cabinet beside the sink.

“Twelve centimetres,” she said. “Fifteen minutes.”

They cleared it together. Sink taps off. Drain plugged. Dishwasher disabled. Exhaust fan dead. Cabinet empty and dry. Both radios tested. The bright mat and open emergency tray stood beside the cabinet.

The basin under the sink had collected a finger of water since lunch. Miles looked at it, and at the solid partition between the two cabinets, and felt the morning’s two words line up behind his teeth. He had already said them once today, and he knew how that had gone. The hinge was in the other cabinet. The stop was as closed as it would turn. He set an electric hotplate across the room, safely beyond the marked work zone, and put soup on low.

Luz changed on the bright mat, five counted seconds from ordinary height to her practiced minimum, and Miles started both warning timers. At twelve centimetres, her voice kept its familiar adult pitch but could barely cross a quiet metre. The radio made conversation easy.

“Pin’s aligned,” she reported from the cabinet. “Tapping it home.”

Miles glanced at his timer and stirred the soup. “Five minutes in. I should label this spoon.”

“Warning: may contain spoon.”

The corroded bend, weakened past endurance by the damp, gave way under ordinary building pressure with a crack like a plate breaking.

Cold water shot out through the toe-kick gap under the sink, struck the opposite wall, and sheeted across the kitchen floor. Miles killed the hotplate, yanked its plug, and lunged toward the cabinets.

Luz stood on the dry mat outside the hinge cabinet. She had climbed clear before the flood reached her.

“Reverse now,” Miles said.

Her expression sharpened. “Facts, Miles.”

He heard the command in his own voice and hated that it had arrived before thought. He forced himself to look.

“Branch line split behind the toe-kick. Apartment stop still isn’t holding. I can see the hidden handle, but I can’t reach it. Water’s moving toward the outlet.” His timer read just over six minutes. “Eighteen minutes.”

“Cut the kitchen breaker.”

He ran to the panel. The kitchen went dark and the refrigerator hum died. When he returned with the flashlight, water had spread halfway across the floor, but Luz remained on the mat.

“I can reach that handle,” she said.

“Luz, I’m afraid.” Water touched the table leg behind him. “That’s it. That’s all I’ve got. I’m afraid.”

She held his gaze for one beat. “Good fact.” Then she pointed at the emergency tray. “I’m going in. Ramp.”

Miles laid the towel from the mat to the open door of the sink cabinet. He set his open palm beside it as the other option, still and uncurled.

Luz chose the ramp.


Inside the sink cabinet, spray came up through a slot at the back, where the cabinet floor stopped short of the wall, and turned the flashlight beam into a field of flying silver. The valve was below that slot, in the dark space behind the toe-kick, where the pipe braces ran down past the split bend to a shallow shelf. From the floor, through the toe-kick gap, Miles could see the shelf and little else. Luz went down the braces on their sheltered side, out of the direct jet. Water that would have been spray against Miles’s wrist could sweep her off them.

“Clip on the handle,” she said over the radio. “Spring clip. Holds it locked.” A scrape, a grunt. “I can push it up.”

Miles rolled towels into a dam between the flood and the dead outlet. With his other hand he called the unit below, warned that water was coming, and then called emergency maintenance. Each glance away from the cabinet felt like a betrayal, but containing the flood was work only his reach and speed allowed.

“Clip’s up. I wedged it,” Luz said. “Handle’s seized. I can’t get the torque.”

Miles pulled the utility cord from the tray. “I can feed this through the toe-kick.”

“Do it.”

He pushed the dry end through the gap. A ricochet struck the cabinet wall and became a sudden sideways sheet. Luz disappeared from the brace.

“Luz!”

Her radio hit something, crackled, and gave him a burst of static. In the flashlight’s spill he saw her land on the shelf, roll, and push upright. Cold water washed around her boots and dragged at her legs.

Miles thrust his hand toward the gap.

“Don’t,” her radio managed.

The word vanished beneath static.

He stopped with his fingers at the toe-kick. Every frantic part of him demanded that he reach in, close his hand, tear wood away until he had her out. But a blind grab could drive her into the pipe, and wrenching the cabinet could split the line farther—or block the only clear route for her forced return.

He had written the steps for losing contact himself, and he made himself follow them: hazards off first, then a route, and his hands out of it.

The breaker was off. He withdrew his hand, fixed the flashlight on the shelf, and laid the cord end within her reach.

For several seconds he saw only water. Then the cord twitched and began sliding into the dark.


Miles knelt in the flood with the cord wet between his fingers. Luz vanished behind the pipe, visible only in fragments: a sleeve, one boot, the brief shine of the radio that no longer worked.

The cord moved around the hidden valve. He waited.

Two distinct tugs reached his hand.

Pull steadily.

He leaned back, building force instead of jerking. The line quivered. The valve handle shifted a fraction—and the wet loop slipped free.

One tug.

Miles stopped instantly.

His twenty-minute alarm sounded. The bright little chime was absurd under the roar of the leak.

Three tugs.

He fed slack into the gap. When Luz crossed the flashlight beam, he saw her hands shaking hard enough to make the cord jump.

“I can tear the toe-kick out,” he called.

One tug: stop.

He closed his eyes for half a second. He could make the opening larger. He could also bring wet wood down across her route and split the line further.

“Luz,” he said toward the gap. “That was the twenty-minute alarm. The way out’s still clear, and I can—” He did not know how that sentence ended.

She came to the edge of the beam, close enough that her own voice could reach him between surges, one hand braced against the pipe.

“Colder,” she said. “Than I said.” A surge took the next words. “—three cycles.” She breathed. “Coming back might be slow.”

Miles’s hands closed on the cord. Slow could mean twenty seconds of breathing with nothing happening, and nothing moved the twenty-four-minute limit. If her body started coming back while she was still in there, the space would close around her before she was halfway up.

“Coming out is safest.” He made himself stop there. “What are you choosing?”

“One more.” She held up the wet loop and pushed her thumb through it, a tuck. “Under the clip.”

The first loop had sat on the outside of the wedged clip and ridden straight off the handle. Tucked under the clip, it would have something to catch on.

He wanted to say no.

“At twenty-three I let go,” he said. “Whatever the valve’s doing. I let go and keep the light on the way out.”

Luz nodded. “Twenty-three.”

She took the cord back into the dark.


The water chilled Miles through his trousers while he waited. He imagined Luz crawling behind the stiff handle, using strength enough to lift her own body many times over but not enough to turn the metal. He imagined the spring clip she had wedged up and the narrow angle only she could see.

The cord moved. Slack vanished one centimetre at a time.

Two deliberate tugs.

Miles leaned back on Luz’s rhythm. The cord tightened. For a breath, nothing yielded. Then the valve handle groaned around its stem.

The changing angle drove the spray harder. White water erased the interior of the cabinet.

One tug snapped through the cord.

Miles froze. The handle stopped moving.

He could not see Luz. His timer counted upward. Twenty-two minutes, thirty-eight seconds.

The cord loosened, shifted, tightened. Luz was changing position before the handle could pin her. Miles supplied no help she had not requested. He barely breathed.

Two tugs.

He pulled.

The cord bit across his palms. Somewhere beyond the spray, Luz kept the loop tucked under the clip. Miles leaned with his full weight, steady, steady, until the handle struck its stop.

The jet died.

Water pattered from the underside of the counter. In the sudden quiet, the twenty-three-minute alarm began to chime.

Miles released the cord. He wanted to reach into the dark so badly his hands hurt. Instead he dragged the sodden dam aside, spread a clean cloth from the toe-kick gap toward the mat, and fixed the flashlight on the gap.

“Exit is lit,” he said. “Ramp is dry.”

Luz came out through the toe-kick gap on hands and knees. She stood once she was clear of it and walked down the cloth, slower than before. At the last wet stretch before the mat she looked up.

“Hand,” she said.

Miles placed his palm flat and still. She crossed it as a bridge, stepped onto the bright mat, and lifted both arms away from her sides.

“Returning.”

She chose three slow breaths.

One.

Two.

On the third, nothing happened.

Miles saw the tremor in her legs. He kept his hands off her. “You’re on the mat. The route is clear. Breathe again.”

Luz inhaled. Five seconds passed, then ten. Her change finally began. Over eight long seconds she rose to ordinary height, her wet clothes and the dead radio under her sleeve changing with her. She was back before the twenty-four-minute limit.

“Blanket?” Miles asked.

“Yes.”

Only then did he wrap it around her shoulders. She accepted glucose gel, water, and the chair he nudged into place. Emergency maintenance was already on the way. The outlet remained dead. The valve remained closed. Across the floor, the water stopped spreading.

Miles crouched beside Luz, close enough for their knees to touch. Above the counter, the protocol sheet had taken spray along one edge. He knew where his own line was on it without reading.


After warmth, soup, and dry clothes, and after emergency maintenance had isolated the branch line, they sat at the kitchen table.

Miles got up, peeled the old sheet off the cupboard, and brought it back. The wet edge had dried stiff and wavy.

“I wrote it Thursday night,” he said. “You were asleep. I wrote it and taped the sheet back up and didn’t tell you it was there.” He pressed the wavy edge flat with his thumb, which did nothing. “It’s a veto. About your body. On the sheet that’s supposed to be both of ours. I’m sorry.”

Luz held a warm glass between both hands and watched the steam for a while instead of him.

“I kept calling it hunger,” she said. “It was the cold. All three times, and worse each time. I thought if I told you, it would turn into permission. Yours to give.”

“It almost did.”

“Yes.” She set the glass down. “And you needed the truth to spot for me. I knew that down there.”

Miles opened his mouth, and she pointed at him.

“If the next thing is a speech, I’m going to bed.”

“It was a short speech.”

“Then write it down.” She pushed a pen across the table to him, and kept one for herself. “On the new one.”

They wrote the next page together. Symptoms got said out loud before a cycle. Decisions about Luz’s body were Luz’s. Either of them could decline their own part in a plan. Until the shutoff had an extension they could work from outside the cabinet, radios that could survive a soaking, and a dry route they had both checked, Luz chose no shrinking around live plumbing.

Days later, with the branch repaired, the water isolated, and the kitchen power off, they installed an external valve pull. Luz chose a twelve-centimetre cycle and inspected the cord routing from the bright mat.

Miles offered his open palm beside the towel ramp.

She grinned and pointed to the towel. “That route.”

He moved his hand away.

At the valve, she checked the seated loop, then gave two tugs. Miles pulled steadily. The handle closed with a smooth, satisfying turn.

When Luz had returned beside him, they taped up the new protocol sheet. Half the lines were in his square handwriting and half in her quick slant. In the middle, in capitals big enough to read from the mat, they had written:

TWO TUGS: PULL STEADILY.