Over the next days, Jungkook became a shadow. At breakfast, Tae reached for the coffee carafe. His hand covered hers, lingering a fraction too long as he poured. "Careful," he murmured, low and intimate. "Hot things burn." His thumb brushed her wrist. Minjun laughed, oblivious. "Hyung’s always looking out for people!"

Later, in the sun-drenched conservatory crowded with relatives, Tae bent to retrieve a fallen napkin. Jungkook passed behind her, his palm landing a sharp, stinging slap on her ass through the thin silk of her dress.

She gasped, jerking upright. He paused, turning slightly. "Problem?" he asked innocently, his eyes glinting with dark amusement.

Minjun glanced over from his conversation. "Everything okay, jagiya?"

Tae forced a smile, her cheeks flaming. "Just… startled me."

Jungkook smirked, leaning close as he walked by. "Such a jumpy little slut," he breathed against her hair.

***

The library was empty, thick afternoon light filtering through dusty shelves. Tae pretended to browse titles, her pulse hammering.

Jungkook materialized silently beside her, trapping her against a bookcase. His hand slid possessively over her hip, squeezing hard.

"Thinking about me?" His voice was a rough caress. "Or just pretending to read?" His other hand cupped her breast, thumb circling her nipple through the flimsy fabric.

She whimpered, arching into the touch despite herself. "Stop… someone will see."

He pinched her nipple sharply, making her gasp. "Let them," he growled. "Let them see how wet you get for your fiancé’s brother." He squeezed her ass, fingers digging in. "Tell me you want it."

"I don't—" she started weakly.

"Liar," he hissed, grinding his hardening cock against her hip. "You’re soaked. I can smell it." He released her abruptly, leaving her breathless and aching against the shelves.

***

The hall was dim, deserted after dinner. Tae hurried towards the stairs, desperate for solitude. A hand shot out from a shadowed alcove, yanking her violently off her feet. Jungkook spun her, slamming her back against the cold wall.

"Running?" he snarled, his body caging hers, his heat enveloping her. Before she could protest, his hand plunged down the front of her skirt. Fabric tore. His fingers shoved aside her thong, thrusting deep into her slick heat.

"Oh God!" she cried out, her legs buckling. He held her up effortlessly, fingers pistoning ruthlessly inside her, his thumb grinding her clit.

"Quiet, slut," he commanded, his breath hot on her neck. "Cum for me. Now."

Her hips jerked against his hand, a strangled sob escaping her as the orgasm ripped through her, sharp and shattering. He kept fingering her, prolonging the spasms until she trembled violently. Only then did he withdraw, his fingers coated in her release. He held them up, glistening in the low light. "See?" he whispered, smearing her wetness across her trembling lips. "Mine."