The room had gone quiet except for the wet sounds of Mara's mouth. Marcia's knees had long since passed pain into a dull, distant burn, the wool of the rug scratching raw patches into her skin that she barely felt. Her hands stayed locked behind her back, knuckles white, fingers laced so tight her nails bit into her own palms. The ache between her legs was worse than her knees—a hollow, weeping hunger that pulsed with every one of her sister's slow, deliberate bobs.

Mara's head moved without hurry, her lips stretched slick and red around Dominic's cock, her jaw working him in a rhythm that seemed almost lazy. She'd stopped being tentative somewhere in the last several minutes. Her hands rested on his thighs, fingers splayed, and she took him deeper with each pass, her throat opening for him in a way that made Marcia's stomach clench with something that was equal parts envy and awe.

Dominic sat on the edge of the bed, legs spread, one hand buried in Mara's hair. His head was tipped back, eyes half-closed, a low, gravelly hum of approval rumbling in his chest. He didn't look at Marcia. He rarely did. When his gaze did drift past her, it was the way a man glances at furniture—acknowledged, catalogued, dismissed.

Marcia was grateful for that too. She was grateful for everything.

A polished heel tapped against her thigh.

Marcia flinched, then stilled. Sienna had moved closer without a sound, standing just to Marcia's right, her shadow falling across the kneeling girl like a physical weight. The sole of her stiletto pressed into the meat of Marcia's upper thigh, not hard enough to hurt, but firm enough to remind.

"Look at her," Sienna said. Her voice was low, velvet over steel. "Really look at her, Marcia."

Marcia's gaze had been fixed on the floor, on the pattern of the rug worn thin by years of feet. She lifted her eyes slowly, obediently, and found her sister.

Mara's cheeks were hollowed, her lips impossibly stretched around Dominic's girth. Her dark hair had come loose from whatever tie she'd worn earlier, spilling across her shoulders and onto Dominic's thighs. Her eyes were closed, lashes dark against her flushed skin, and there was a furrow between her brows—not of pain, but of concentration. Of want.

The sight of it made Marcia's mouth water.

"Tell her," Sienna said, and the heel pressed a fraction deeper into Marcia's thigh. "Tell her how beautiful she looks."

Marcia's throat closed. The words stuck somewhere between her chest and her tongue, heavy and impossible. Her voice had changed when her body had—higher, softer, with a breathiness she still wasn't used to. When she spoke now, it didn't sound like her. It sounded like a stranger wearing her mouth.

"I—" The word cracked. She swallowed, tried again. "She looks…"

"Go on." Sienna's hand settled on the back of Marcia's head, fingers threading through her hair—sandy brown, the same shade it had always been, but longer now, softer, brushing her shoulders. "You have a voice. Use it."

Marcia's eyes stayed on her sister. On the way Mara's lips stretched and released, the glisten of saliva running down Dominic's shaft, the way her throat worked when she took him deep.

"She looks," Marcia whispered, and the words came out like they were being pulled from her one by one, "like a woman made for… for worship."

Sienna's fingers tightened in her hair. Not a yank—a squeeze. Approval.

"Good girl."

The praise hit Marcia like a physical blow. Warmth flooded her chest, spread down through her stomach, settled into that empty, aching place between her legs. Her cunt clenched around nothing, wet and useless, and she pressed her thighs together just to feel some kind of pressure, any kind of relief.

She wasn't allowed to touch herself. She knew that. The rules had been clear from the beginning, and they hadn't changed just because her body had.

She was allowed to watch. She was allowed to praise. She was allowed to ache.

She was not allowed to touch.

Mara's rhythm slowed. Her head rose, lips sliding up Dominic's length until only the head remained in her mouth, and her eyes fluttered open.

She looked at Marcia.

It was the first time their eyes had met since Mara had lowered herself between Dominic's legs. Marcia's sister looked different from this angle—flushed, lips swollen and slick, chin wet with spit and pre-cum. There was something in her gaze that Marcia couldn't name. Not pity. Not judgment. Something rawer, something that made Marcia's breath catch in her throat.

Mara held her eyes, and then she moaned.

It was a low, throaty sound, muffled by the cock still resting on her tongue. It vibrated through Dominic's shaft, made his hips twitch, made his hand tighten in her hair until her knuckles went white against his thigh.

The sound went through Marcia like a current. Her own lips parted. Her tongue darted out to wet them, and she tasted nothing but the stale air of the room, but her mouth still watered, still ached to be full.

She wanted that. She wanted to be the one on her knees with her lips stretched, wanted to feel Dominic's hand in her hair, wanted to taste the salt of his skin and feel him pulse against her tongue. She had begged for it earlier—begged Sienna with tears running down her face, her new breasts heavy and her cunt dripping and her whole body trembling with need.

Sienna had denied her.

Not cruelly. Not with anger. Just with that calm, clinical certainty that made Marcia's devotion burn even hotter. *Not yet*, she had said, stroking Marcia's hair like she was soothing a child. *You're not ready.*

Marcia had believed her. She believed everything Sienna said.

"Good girl," Sienna breathed now, and Marcia wasn't sure if she was talking to her or to Mara. Maybe both. Maybe it didn't matter. The praise landed on her skin like a whip anyway, leaving welts of warmth that made her shiver.

Mara's eyes stayed on Marcia's as she took Dominic deeper again, her throat opening to take him all the way to the root. Her nose pressed into the dark hair at his base, and she held there, eyes watering, gaze locked on her brother's—her sister's—face.

Marcia's hands clenched harder behind her back. Her nails broke skin. She felt the thin trickle of blood run down her palm and didn't care.

"You see how she takes him?" Sienna's voice came from just above Marcia's ear, low and intimate, meant only for her. Her fingers were still in Marcia's hair, stroking now, slow and soothing. "How her throat opens for him? That's what it looks like when a woman gives herself completely."

Marcia made a sound. It wasn't a word. It was barely a whimper, high and desperate, escaping through her parted lips without permission.

"She's learning," Sienna continued, and the heel on Marcia's thigh shifted, sliding higher, closer to the hem of her dress. "She's discovering what you already know. What it feels like to be filled, to be used, to be exactly what a man needs."

Marcia's cunt clenched so hard it hurt. She could feel her own wetness soaking through the thin fabric of her panties, a damp heat that made her thighs slick when she pressed them together. Her nipples had gone hard, aching against the inside of the dress Sienna had picked out for her—a soft, floral thing that made her look younger, softer, more like a girl than she'd ever felt as a man.

"Does it make you wet?" Sienna asked, and her voice had dropped to a whisper, rough with something that might have been arousal. "Watching your sister take your man?"

He wasn't Marcia's man. He had never been Marcia's man. Dominic was Sienna's. He had always been Sienna's, and Marcia had only ever been allowed to watch, to worship, to serve.

But Sienna's words still hit her like a fist to the gut.

"Yes," Marcia breathed. The word came out broken, barely audible. "Yes, Sienna."

"Good." Sienna's hand left her hair, trailed down her cheek, her jaw, her neck. Her fingers were cool against Marcia's overheated skin, and Marcia leaned into the touch like a starving thing, chasing it when Sienna pulled away.

Mara's head moved faster now, finding a rhythm that made wet, obscene sounds fill the room. Dominic's hand tightened in her hair, guiding her, and his hips began to move, small thrusts that made Mara's throat bulge and her eyes water.

"That's it," Dominic said, his voice a low growl that made Marcia's spine tingle. "Take it. Take all of it."

Mara moaned around him, a sound of pure need, and Marcia watched her sister's hand slide down between her own thighs. She watched Mara's fingers press against the front of her jeans, rubbing herself through the denim, chasing friction she couldn't quite get.

Marcia's mouth opened. A sound came out—not a word, just a breath, a whine of longing that she couldn't hold back.

She wanted that. She wanted to be allowed to touch. She wanted to slide her own fingers into her soaked, aching cunt and feel herself clench around them, even if it wasn't the same. Even if it wasn't Dominic. Even if it would never, ever be enough.

But her hands were locked behind her back, and the rules were the rules, and she was a good girl. She was Sienna's good girl.

"Tell her," Sienna said again, and Marcia realized her heel had lifted from her thigh. She felt the absence like a loss. "Tell her how beautiful she is when she's full."

Marcia's voice cracked when she spoke. "You're beautiful," she said, and the words felt like they were being dragged out of her throat, raw and bleeding. "You're so beautiful, Mara. You look like… like a woman made for his cock. Like you were born to take him."

Mara's eyes met hers again. There was something in them—heat, confusion, a flicker of something that might have been recognition. She pulled off Dominic's cock with a wet pop, her lips swollen and slick, and she looked at Marcia with her mouth open, panting.

"Is that what you want?" Mara asked, and her voice was hoarse, roughened by the cock that had been in her throat. "To look like that?"

Marcia's breath caught. She didn't know how to answer. She didn't know if there was an answer that wouldn't break her.

"She wants to be you," Sienna said, answering for her. Her voice was calm, matter-of-fact, like she was explaining a simple fact of nature. "She wants to be the one on her knees. She wants to be the one filled. She wants to be the one who matters."

Marcia's eyes burned. Tears spilled over, running down her cheeks, and she didn't wipe them away. Her hands were locked behind her back. She couldn't have wiped them away even if she'd wanted to.

"But she can't," Sienna continued. She stepped closer, her shadow falling over Marcia completely. Her hand came to rest on Marcia's head again, stroking her hair with a tenderness that made Marcia's chest ache. "She can't be you, Mara. She's something else now. She's something smaller."

Marcia sobbed. It was a small, broken sound, torn from somewhere deep in her chest. She was grateful. She was so, so grateful. But the gratitude didn't stop the ache. It didn't stop the hunger. It didn't stop the desperate, useless want that pulsed in her cunt like a second heartbeat.

Mara's gaze softened. Her hand, still resting on Dominic's thigh, moved to his cock, stroking it slowly, almost absently, while she looked at her sister—her brother—kneeling on the rug.

"She looks beautiful when she cries," Mara said, and her voice was strange, distant, like she was realizing it for the first time. "She looks like she's exactly where she belongs."

Sienna smiled. It was a slow, satisfied curve of her lips that made Marcia's stomach flip.

"Yes," she said. "She does."

The word settled over Marcia like a blanket she couldn't shrug off—warm and heavy and smothering all at once. She belonged here. On this rug. In this dress. Beneath Sienna's approving gaze and Dominic's indifference and her sister's strange, searching eyes. The truth of it didn't hurt anymore. It felt like the only solid thing in a room that had gone soft and strange around the edges.

Mara's hand kept moving on Dominic's cock, slow and stroking, and she didn't look away from Marcia. There was a question building behind her eyes, something she was working up to asking, and Marcia could feel it coming like she could feel the ache in her knees—inevitable, growing, impossible to ignore for much longer.

"You really want this," Mara said finally. It wasn't a question. Her voice had a wondering edge, like she was turning a stone over in her hands and finding it heavier than she'd expected. "You really want to stay like this. Small. Kneeling. Watching."

Marcia's throat worked. The answer sat there, obvious and enormous, and she couldn't find a way to make it small enough to say out loud.

"She does," Sienna answered for her again. Her hand had stilled on Marcia's head, fingers resting heavy in the sandy strands. "And she'll tell you herself, when she's ready. When she's earned the words."

Mara's brow furrowed. Her hand slowed on Dominic, and he made a low sound of complaint, but she didn't speed back up. She was looking at Sienna now, really looking, and there was something sharp in her gaze that hadn't been there before.

"You like this," Mara said. "Watching her beg. Watching her cry. Keeping her hungry."

Sienna's smile didn't waver. It deepened, a slow curve that made Marcia's stomach tighten with something that wasn't fear. "I like giving her exactly what she needs. What she asks for. What she begs for, on her knees, with tears running down her face." She paused, letting the words settle. "You've seen her beg. You've heard her. Does that sound like a woman being kept from what she wants?"

Mara's jaw worked. She looked at Marcia again, at the tear tracks still wet on her cheeks, at the way she knelt so still and patient, hands locked behind her back, chest rising and falling with shallow, desperate breaths.

"She looks like she's starving," Mara said quietly.

"She is," Sienna agreed. "And she's never been happier."

The words hit Marcia in a place she didn't have a name for. She wanted to deny it, wanted to explain that happy wasn't the right word, that it was too small and too simple for the thing she felt whenever Sienna looked at her like this. But her mouth wouldn't cooperate. Her tongue lay heavy and useless, and all she could do was kneel there and feel the truth of it pressing against her ribs.

Mara's hand had stopped moving entirely. Dominic's fingers tightened in her hair, a warning, and she startled like she'd forgotten he was there. She looked down at his cock, slick and hard in her hand, and something flickered across her face—embarrassment, maybe, or the first stirring of that same hunger Marcia knew so well.

"I'm sorry," Mara muttered, and lowered her head again.

Dominic's grip gentled as her lips closed around him. He let out a long breath, his head tipping back, and Marcia watched her sister's cheeks hollow as she took him deep. There was something different in the way Mara moved now—less hesitant, more deliberate. Like she'd stopped fighting whatever was pulling her down and had decided to follow it instead.

Sienna's heel tapped against Marcia's thigh again, a soft, insistent rhythm. Marcia felt each tap like a small electric pulse, waking nerves she'd thought were numb. Her cunt throbbed in time with it, a dull, aching pulse that made her press her thighs together so hard she felt the muscles strain.

"You did well," Sienna said, and her voice had dropped to that low, intimate register that made Marcia's skin prickle. "Praising her like that. Telling her what you see. It takes a certain kind of woman to speak beauty into another woman's mouth while her own stays empty."

Marcia's breath caught. The words were praise, but they landed like a blade—sharp and precise, cutting exactly where Sienna meant them to. Her empty mouth. Her aching, useless cunt. The distance between what she could give and what she could receive.

"Thank you," she whispered, because she didn't know what else to say. Because thank you was the only currency she had left.

Sienna's fingers traced down her cheek, featherlight, and Marcia leaned into the touch without thinking. Her eyes fluttered closed. For a moment, there was nothing but the warmth of Sienna's hand and the wet sounds of Mara's mouth and the low, rumbling pleasure in Dominic's chest.

Then Sienna's hand withdrew, and the cold rushed back in.

Marcia opened her eyes. Sienna had stepped back, creating a small distance between them, and she was looking at Marcia with that clinical appraisal that made her feel like a specimen under glass. Beautiful. Fascinating. Not quite real.

"You want to touch yourself," Sienna said. It wasn't a question.

Marcia's face flushed. The heat crawled up her neck, burned in her cheeks, and she couldn't meet Sienna's eyes. Her hands ached behind her back, fingers twitching with the urge to reach down, to press, to find some kind of relief from the pressure building between her legs.

"I—" She swallowed. Her voice came out small and ashamed. "Yes."

"I know." Sienna's voice was gentle, almost kind, which made it worse. "And you won't. Because you're mine. Because you trust me. Because you know that what I give you will be better than anything you could take for yourself."

Marcia nodded. The motion sent tears spilling down her cheeks again, and she didn't understand why she was crying. She wasn't sad. She wasn't hurt. She was full, so full it felt like she might burst, and her body didn't know what to do with the overflow except let it leak out of her eyes.

Mara made a sound around Dominic's cock—a muffled moan that vibrated through the air. Her hand had slid down between her own thighs again, pressing against the denim of her jeans, and her hips were moving in small, unconscious circles against her own fingers.

Dominic noticed. His hand tightened in her hair, pulling her off his cock with a wet sound that made Marcia's stomach flip. Mara gasped, lips swollen and slick, a thin string of saliva connecting her mouth to the head of his cock.

"None of that," Dominic said. His voice was low and rough, and his eyes were dark as he looked down at her. "You don't get to touch yourself either. Not until I say so."

Mara's breath came in short, sharp gasps. Her hand had frozen on her thigh, and she was looking up at Dominic with wide eyes, caught between defiance and obedience.

"I wasn't—" she started.

"You were." He cut her off without heat, matter-of-fact. "I felt you moving. I know what you were doing." He leaned forward, and his voice dropped to something almost intimate. "You want to come so badly you can taste it. But you're going to wait. You're going to watch your sister kneel there and ache, and you're going to learn what patience feels like."

Mara's mouth opened. Closed. Opened again, but no sound came out. Her eyes flicked to Marcia, and Marcia saw something in them that she recognized—the first real understanding of what this was. What it meant to want something so badly that the wanting itself became a kind of worship.

"She's learning," Sienna murmured, and there was satisfaction in her voice. She had moved to the edge of the bed, settling onto it beside Dominic, her hand coming to rest on his thigh. "She's starting to understand."

Marcia watched her sister's face as the realization sank in. Watched the confusion war with the heat, the resistance crumbling against the weight of her own desire. Mara's hand was still frozen on her thigh, and Marcia could see the fine tremor in her fingers, the effort it took to keep them still.

"It's easier if you stop fighting," Marcia said, and her voice surprised her—steady, sure, like she'd found something solid to stand on. "The ache doesn't go away. But it gets… softer. When you stop trying to make it stop."

Mara's eyes met hers. There was something raw in them, something that made Marcia's chest ache with recognition. She knew that look. She'd worn it herself, in the weeks before she'd finally knelt down and told Sienna everything.

"How do you—" Mara's voice cracked. She started again, quieter. "How do you live like this?"

Marcia thought about it. The question deserved a real answer, and she wanted to give one. She wanted her sister to understand, the way Sienna had made her understand.

"I stopped asking for what I want," she said slowly. "And I started asking for what I need. And Sienna gives me that. She gives me exactly that, every time, even when it hurts. Especially when it hurts."

Mara's breath shuddered out of her. Her hand fell away from her thigh, dropping to rest on her knee, and she looked down at the floor like she was seeing it for the first time.

Sienna's hand found Marcia's hair again, stroking slow and soothing. "That's my good girl," she murmured, and Marcia felt the praise settle into her bones. "That's my beautiful, patient girl."

Marcia closed her eyes. The ache was still there, throbbing between her legs, and her hands still burned with the urge to reach for herself. But the praise was warmer than the ache, and she let herself sink into it, let it carry her through the hunger.

She was Sienna's. She was patient. She was good.

And when the time came, Sienna would give her what she needed. She always did.