Chapter 5: The ultimate confession
The week blurred into a haze of stolen moments and half-truths.
Robin moved through the days like a man underwater, going through the motions of patrol and training and team dinners while his mind lived somewhere else entirely. In the dark hours, when the tower slept and the guilt gnawed at him like a living thing, he found himself outside her door. Every. Single. Night.
He told himself it was the bond. Told himself he had no control over the pull, that it was some Tamaranean trick he couldn't fight. But when he sank into her heat, when she wrapped those long legs around his waist and whispered filthy praise against his ear, he knew the truth.
He wasn't a victim of some cosmic force. He was an addict, plain and simple.
She was everywhere. In the way his skin remembered her touch. In the scent of ozone and burnt sage that clung to his clothes no matter how many times he washed them. In the satisfied little smirk she shot him across the training room while Starfire was mid-sentence, completely oblivious.
It was reckless. It was stupid. It was the most alive he'd felt in years.
Today, the tower was quiet. Beast Boy had dragged Cyborg to some gaming convention downtown, and Raven had locked herself in her room with a stack of ancient tomes and a scowl that promised violence if disturbed. That left just the three of them—Robin, Starfire, and the elephant in the room that Blackfire had become.
They were in the common room, the afternoon sun streaming through the floor-to-ceiling windows. Starfire sat beside him on the couch, close enough that her knee pressed against his thigh. Her warmth was familiar, comforting, and it made his stomach twist with something between guilt and nostalgia.
"I have been thinking," Starfire said, her voice bright and melodic, "about the customs of my people. You have asked me so many questions lately about Tameran, and I realized I have not shared nearly enough."
Robin's heart stuttered. He'd been careful—so careful—but she'd noticed. Of course she had. He'd peppered her with questions over the past few days, desperate for information about bonding, about the connection that hummed in his chest, about what in the hell he was supposed to do to break it.
"That's great," he said, forcing a smile. "I'd love to hear more."
Starfire beamed, the expression so open and trusting that it made his teeth ache. She launched into a description of Tamaranean marriage ceremonies, her hands fluttering as she painted a picture of floating lanterns and songs that could be heard from orbit. He nodded along, absorbing the words without really hearing them.
"And then there is the bond of the soul," she continued, her eyes going dreamy. "That is the most sacred. When two hearts choose each other for eternity, they are joined in a way that transcends physical connection. It is said that you can feel your love's heartbeat even from across galaxies."
"Right," he said, his throat dry. "And what about—what about the other bonds? The, uh, less sacred ones?"
Starfire's expression flickered, something shuttering behind her eyes. It was subtle, barely there, but he caught it. "Why do you ask, Robin?"
Because I'm fucking your sister. Because I can't stop. Because there's a thread tied around my soul that's pulling me apart.
"No reason," he said. "Just curious."
She studied him for a long moment, her emerald eyes searching his face. Then, slowly, she began to speak again—and this time, her voice was different. Quieter. Heavier.
"There is a bond that is not spoken of often," she said. "It is forbidden, considered a weapon rather than a union. We call it the vrek'nar." The word was harsh and guttural, nothing like her usual lilting speech. "The sexual enslavement bond."
Robin's blood ran cold. "What is it?"
Starfire looked down at her hands, her fingers twisting together. "It is a mind-breaking orgasm. A connection formed through the most intimate of acts, engineered by a Tameran who is skilled in the old arts. The one who channels it is able to... wrap the receiver's desire around themselves, like a chain. The man who is bonded in this way cannot desire anyone else. He cannot resist the pull of his enslaver. He becomes utterly and completely theirs."
The words hit him like a physical blow.
He couldn't breathe. His chest was tight, his heart hammering against his ribs. The bond inside him pulsed, hot and hungry, as if responding to Starfire's description.
"That doesn't sound real," he managed. "That's—that's not how attraction works."
"On Tameran, it is not so different." Starfire's voice was flat now, hollow. "We are a passionate people. Our emotions are intertwined with our biology. A skilled channeler can weaponize that. They can turn pleasure into a cage."
Robin's mind raced, throwing up memories like accusations. The first night. The way she'd seemed to know exactly how to move, exactly how to touch him. The intensity of his orgasm, so overwhelming he'd blacked out for a split second. The bond that had snapped into place before his vision had even cleared.
It hadn't been an accident. It hadn't been fate.
It had been her.
The door slid open behind them.
Robin turned, his body tensing with recognition before his brain even caught up. Blackfire stood in the doorway, leaning against the frame with a casual grace that was anything but innocent. She wore a thin silk robe, loosely tied, revealing the hint of bare skin beneath. Her wet hair clung to her shoulders, and there was a knowing smirk playing at the corners of her lips.
"Am I interrupting?" she asked, her voice smooth as smoke.
Starfire froze.
The emerald glow of her eyes flickered, dimming like a dying star. She looked at Blackfire. Then at Robin. Then at the space between them, where the air itself seemed to thrum with the secret they'd been keeping.
"He asked about the vrek'nar," Blackfire said, pushing off the doorframe and walking toward them. She was utterly unconcerned, her violet eyes glittering with amusement. "And you explained it to him. How thorough of you, sister."
"Komand'r," Starfire said, and her voice cracked on the name. "Why would you—"
"Why not?" Blackfire shrugged. "He wanted to know about Tameran customs. I simply gave him a demonstration."
The silence that followed was deafening.
Starfire stood, her movements jerky, uncoordinated. She looked smaller than Robin had ever seen her, as if the revelation had stripped away something vital, leaving only the hollow shell behind.
"Star—" he started, reaching for her.
"Matching passions," Starfire said, cutting him off. Her voice was barely a whisper. "You once asked me if Tameranians believe in soulmates. I told you that we do. I said that when two people share a bond, the universe itself sings with their love."
She turned to look at him, and the pain in her eyes was a blade.
"But I did not tell you that the vrek'nar mimics that song. It calls to the blood, the heart, the very core of a man's being. It makes him think he is in love." A single tear slipped down her cheek. "It makes him forget what is real."
"Starfire, please—"
"Did you love me?" she asked, and the question was so raw, so naked, that it stole the breath from his lungs. "Even for a moment? Or was I simply the door to my sister?"
He didn't answer. He couldn't.
The silence was answer enough.
Starfire turned and walked away. Her steps were slow, measured, as if she was holding herself together by sheer force of will. The door slid shut behind her, and the sound was like a tomb sealing.
Robin sat frozen, the weight of what he'd done pressing down on him like a collapsing building. He'd known—god, he'd known it would hurt her. But he hadn't imagined this. The betrayal, the emptiness in her voice. It was worse than any physical blow.
Blackfire moved behind him, and he felt her arms wrap around his shoulders from behind. Her lips brushed his ear, warm and teasing.
"Don't look so tragic," she murmured. "She'll get over it. They always do."
"You used me," he said, his voice flat. "You bonded me. On purpose."
"I gave you pleasure," she corrected, her hands sliding down his chest. "I gave you something to feel. Is that so terrible?"
"You made me choose you."
"I made you want me." She pressed a kiss to the side of his neck, lingering. "There's a difference."
He should push her away. He should run after Starfire, try to explain, try to fix the mess he'd made. But his body stayed rooted to the couch, and his heart—his traitorous, treacherous heart—still hummed with the bond she'd forged.
She moved in front of him, sliding onto his lap with practiced ease. Her robe fell open, revealing the perfect curve of her breasts, the flat expanse of her stomach. She took his face in her hands, tilting his head up to meet her gaze.
"Look at me," she commanded.
He did.
"You belong to me now," she said, her voice low and certain. "You'll always belong to me. And eventually, you'll realize that's not a curse. It's a gift."
She kissed him.
The press of her lips was soft at first, almost tender. Then it deepened, her tongue sliding against his, demanding and possessive. The bond in his chest flared, burning with a heat that was all-consuming, and he knew—with a clarity that cut through the fog of his guilt—that he was lost.
He kissed her back.
And somewhere in the tower, a heart broke beyond repair.