Tomorrow x Together x Reader

Brother Yeonjun: Amazing Days. . .

Paring: Brother Yeonjun x Sister Reader
Style: brother & sister AU, Fluff, Friendship, close sibling bond, younger sister older brother yeonjun, life diary au
Word count: 3257

.  .  .

Y/N couldn't help but grin as she scrolled through her phone, her fingers dancing over the screen as she navigated through the endless sea of social media. Her older brother, Yeonjun, barged into her room unceremoniously, a mischievous glint in his eyes that she knew spelled trouble.

"Hey, little sis!" Yeonjun announced dramatically, waving his phone in the air like a victorious conqueror. "I've got something to show you."

Y/N raised an eyebrow, curiosity piqued. "What's up?" she asked, setting her phone down to give her brother her full attention.

With a theatrical flourish, Yeonjun thrust his phone in her face, displaying her latest TikTok video with mock indignation. "Explain this," he demanded, a playful smirk tugging at the corners of his lips.

Y/N couldn't help but chuckle at his exaggerated reaction, her shoulders shaking with mirth. "Oh, come on, Yeonjun," she chided, swatting his arm lightly. "You know I can't resist a good dance challenge."

"But you didn't even invite me to join in on the fun!" Yeonjun protested, feigning hurt as he pretended to clutch his heart in mock agony.

"Next time, I promise," Y/N assured him with a grin, her eyes twinkling with amusement.

Yeonjun rolled his eyes dramatically, but a smile tugged at his lips despite his feigned annoyance. "You better," he teased, playfully ruffling her hair before flopping down on her bed with a dramatic sigh.

As Y/N scrolled through her Instagram feed, Yeonjun couldn't help but peer over her shoulder, his curiosity getting the best of him.

"What's this?" he asked, pointing to a recent photo she had posted. "You look like a suburban mom on her way to Target."

Y/N couldn't hold back her laughter at his comment, doubling over with mirth as she tried to catch her breath. "Hey, I'll have you know that I was going for the 'effortlessly chic' look," she retorted, playfully nudging him with her elbow.

Yeonjun smirked, his eyes dancing with mischief. "Well, you definitely nailed the 'mom on a mission' vibe," he teased, earning himself a playful shove from his sister.

"Oh, shush," Y/N replied, swatting at him half-heartedly. "You're just jealous that I can pull off any look."

Yeonjun pretended to pout, dramatically clutching his heart as if wounded by her words. "Ouch, sis," he mock-whimpered, making Y/N giggle even harder.

Another day Yeonjun watched y/n putting make up on as she got ready for a date with Hueningkai. Y/N chuckled as she carefully applied her makeup in front of the mirror, her concentration broken by the sound of her brother's voice.

"Hey, sis," Yeonjun called out, leaning against the doorframe with a smirk. "You got something on your face."

Y/N rolled her eyes, a playful smile tugging at the corners of her lips. "Yeah, duh, it's called makeup," she retorted, swatting at his hand as he reached out to poke her pink-blushed cheeks.

Yeonjun feigned offense, clutching his chest dramatically. "I should be offended that you're going out with one of my best friends," he teased, waggling his eyebrows suggestively.

Y/N laughed, shaking her head at her brother's antics. "Oh, please," she scoffed. "As if you have any room to talk. You practically adopted Soobin as your second brother."

Yeonjun grinned sheepishly, scratching the back of his head. "Yeah, well, that's different," he insisted, though the mischievous glint in his eyes betrayed him.