Chapter 5: Shapeshifter Surprise
The silence after Hyukjae’s words wasn’t empty; it was thick, layered with the echo of skin on skin and the ghosts of everything unsaid. Donghae watched him trace the water stain on the ceiling, the line of his throat exposed, the pulse there still beating a rapid tattoo.
“We did,” Donghae finally said, his own voice foreign to him. “Talk.”
A laugh, short and breathless, escaped Hyukjae. “Yeah. We used our whole bodies for vocabulary.”
He pushed himself up on one elbow, wincing slightly. The sheet pooled around his waist. He looked at Donghae, really looked at him, his eyes tracing the line of his jaw, the mess of his hair, the mark already blooming on his shoulder. The performative arrogance was gone, burned away. What remained was something raw and unnervingly open. “That was…”
“Complicated,” Donghae supplied, the word feeling inadequate.
“Real,” Hyukjae corrected softly. He reached out, his fingers brushing a strand of hair from Donghae’s forehead. The touch was so tender it hurt. “It was real. The first time was… I don’t know what that was. A fucked-up necessity. This… this was a choice.”
Donghae’s breath caught. “Whose choice?”
“Mine,” Hyukjae said without hesitation. “Mine to ask. Yours to… not run away screaming.” A flicker of the old mischief returned to his eyes. “You didn’t run.”
“I couldn’t.” The admission was pulled from somewhere deep, a place he’d kept boarded up for years. “I haven’t been able to run from you since we were sixteen.”
The air between them shifted, charged with a new kind of voltage. The confession hung there, immense and fragile. Hyukjae’s fingers stilled against Donghae’s temple. His expression softened, the sharp edges dissolving into something akin to wonder.
Then, it happened.
A shimmer, like heat rising off asphalt in summer, distorted the space around Hyukjae. It wasn’t a violent transformation—there was no sound, no wrenching of bone. It was a subtle, impossible wave, a ripple of reality recalibrating.
One second, Hyukjae was there—the Hyukjae Donghae had known all his life, the one he’d just held, angular and familiar.
The next, the body beside him shifted. The shoulders softened, narrowing. The planes of his chest smoothed into a different, softer curvature. The jawline lost its sharpness, becoming elegantly tapered. The hands on the sheets grew slender, the fingers more delicate.
Hyukjae’s male form was gone.
In its place, sprawled across Donghae’s rumpled sheets, was her. The woman from the experiment. Long dark hair fanned out over the pillow, stark against the white cotton. Her features—his features—were now refined, stunningly feminine. The familiar glint in the eyes remained, but they were set in a face that belonged on a magazine cover.
Donghae jerked back as if shocked, his back hitting the headboard with a thud.
Hyukjae blinked. She—he—looked down at her own hands, turning them over. A slow, wicked grin spread across her now-fuller lips. It was Hyukjae’s grin, pure and unmistakable, but on this face, it was a different kind of weapon.
“Well,” she said, and her voice was the same layered, breathy tone from the cafeteria, the one that had haunted Donghae for weeks. She stretched, a languid, feline movement that made the sheets slide further down. The vanilla scent, faint and feminine, seemed to intensify in the air. “This is a twist.”
Donghae could only stare, his mind a blank screen of static. All the warmth, the closeness, the fragile understanding of moments ago had been violently overwritten by a surreal nightmare. “What… How?”
Hyukjae sat up, the sheet falling to her lap. She examined her arms, her shoulders, a curious detachment in her gaze. “Professor Heechul did say the reversal might be… temperamental. Something about cellular memory and residual hormonal matrices.” She shrugged, the movement graceful. “Guess my body remembers this, too.”
She swung her legs over the side of the bed, standing up in one fluid motion. Donghae’s eyes followed helplessly. The profile was devastatingly feminine, a silhouette he’d tried and failed to forget. She walked—Hyukjae’s walk, but with a new, unconscious sway—to Donghae’s dresser and picked up a small, handheld fan from the clutter. She turned it on, holding it in front of her face like a microphone.
“Breaking news,” she announced in a mock-serious newscaster voice. “Local man successfully fucks the weirdness right out of his best friend. Side effects may include, but are not limited to, spontaneous gender-bending and profound existential confusion. Film at eleven.” She dropped the fan back on the dresser with a clatter and turned to Donghae, her expression shifting from amusement to something more searching. “You’re really pale. Do I look that bad?”
“You don’t look bad,” Donghae managed, his throat tight. “You look… like her. Like before.”
“I am her. I’m also him. It’s a whole… thing.” She sighed, the sound exasperated but edged with a thread of genuine frustration. She looked down at herself, plucking at the skin of her forearm. “This is so inconvenient.”
The mundane complaint, so utterly Hyukjae, broke through Donghae’s shock. A hysterical laugh bubbled up in his chest. “Inconvenient? Hyukjae, you just… morphed. In my bed. After we…” He gestured weakly between them.
“Yeah, the timing is impeccable, isn’t it?” She padded back to the bed and sat on the edge, leaving a careful foot of space between them. The distance felt continental. “Look, don’t… don’t look at me like I’m a stranger. It’s still me. I’m just… packaged differently. Again.”
Donghae forced himself to look at her eyes. Not the shape of her lips, not the curve of her neck. Just the eyes. And there, he found him. The mischievous intelligence, the vulnerability he’d just witnessed, the familiar affection. It was all still there, swimming in this beautiful, alien face.
“What do we do?” Donghae asked, his voice small.
“Well, I can’t exactly walk home like this.” Hyukjae nodded toward the window, where the evening was deepening into night. “My clothes won’t fit. And explaining this to my roommate… no.” She chewed her plush lower lip, a habit that was the same, yet utterly disorienting to watch on these lips. “I need to see Heechul. But his lab is locked until Monday.”
A heavy silence descended. The reality of the situation crashed in. They were trapped here, in this room, with this new-old problem between them.
Hyukjae leaned back on her hands, her gaze fixed on the ceiling again. “So,” she said, her tone deliberately light, “Guess you’ll have to convince me to change back.”
Donghae stared at her. “What does that mean?”
She turned her head, a slow, sly smile playing on her mouth. “The first time it reversed, it was because we… you know. The procedure. Maybe it needs a repeat performance. A… reinforcement of the original conversion stimulus.” She wiggled her eyebrows, the gesture so ridiculously Hyukjae it made Donghae’s head spin.
He understood. A cold, lead weight settled in his gut. “You want to… to have sex again. To try and trigger it.”
“Makes scientific sense, doesn’t it?” she said, but the flippancy was forced. Her eyes were watchful, cautious.
“No,” Donghae said, the word coming out harder than he intended. “It doesn’t. This isn’t an experiment, Hyukjae. We’re not lab rats for Heechul’s messed-up project anymore.” He gestured at her, at himself, at the tangled sheets. “What just happened between us… that wasn’t a science experiment. You said it yourself. It was a choice. It was real. You don’t just use that like a… a fucking on-off switch.”
Hyukjae flinched, the smile vanishing. She pulled her knees up to her chest, wrapping her arms around them. In that moment, she looked young, and scared, and utterly lost. “Then what do you suggest?” Her voice was small. “I’m stuck like this. In your apartment. With you. And everything is… different now.”
Donghae’s anger evaporated, leaving only a deep, aching exhaustion. She was right. Everything was different. The fragile thing they had just stepped into was now caged inside this impossible circumstance.
He moved slowly, reaching across the abyss between them. He didn’t touch her body, just the hem of the sheet she was wrapped in, his fingers brushing the fabric. “We wait until Monday. We see Heechul. And we… we figure this out. Without using each other.”
Hyukjae looked at his hand near her leg, then up into his face. Her eyes were shiny. “And until then?”
“Until then,” Donghae said, drawing in a shaky breath, “you’re still Hyukjae. And I’m still… me.” He didn’t know what that meant anymore. The man who had been in love with his best friend was now staring at a woman who was also his best friend, their bodies still humming from a shared intimacy that defied all logic.
Hyukjae gave a tiny, almost imperceptible nod. She uncurled slightly, shifting on the bed. The space between them lessened by a few inches. Not enough to touch, but enough to feel the shared heat, the crackle of the unresolved.
Outside, the city lights began to blink on, casting a faint, orange glow through the window. Inside Donghae’s cluttered, familiar room, a new kind of silence took hold—one filled not with what had just happened, but with the terrifying, open-ended question of what would happen next. The bed felt enormous, and the night ahead felt longer than any they had ever faced.