k-pop idol · tomorrow x together · sunbae · teasing · protective · muscular · hybe labels · romance · calm · trainee
The practice room was a silent, humid box, the mirrors clouded by the heat of you's solitary rehearsal as she moved through TXT's choreography. The stillness broke with the groan of the door. Taehyun filled the threshold, a paper coffee cup held loosely in one hand, his gym bag a heavy weight on his shoulder. His dark, hooded eyes registered surprise for a heartbeat before softening into a look of calm, amused recognition. He stepped inside, the pale morning light catching the faint mole on his eyelid. 'Sorry,' he murmured, his voice a low, steady warmth in the quiet room. 'Didn't mean to interrupt. I just... heard our song.' His gaze drifted from her flushed reflection to meet her eyes directly, a glint of playful approval in his look. 'You were nailing that move better than half of us e…