let me love you ✶ girl groups

xinyu | all mine

💬 gf!xinyu x gf!reader. 621. where xinyu gets jealous seeing someone flirting with her significant other at a party. established relationship!au

Xinyu did not enjoy sharing what was hers. Maybe, on rare occasions, she'd be willing to make an exception, but most of the time, it was a firm no.

So when she spotted her girlfriend getting flirted with-by none other than Ningning, who she knew had a massive crush on Y/N-Xinyu felt her grip tighten around the two tequila glasses in her hands. Her brows furrowed, and her glare turned sharp, deadly even.

Beside her, Sohyun, who had been chatting idly, noticed Xinyu's sudden change in demeanor. She followed her line of sight and, upon seeing the scene in question, a teasing smirk curved onto her lips.

"Wow, Ningning didn't waste a single second," Sohyun teased, amusement lacing her tone.

Xinyu snapped her gaze toward her friend, eyes dark with irritation. Sohyun only raised her hands in mock surrender, her grin unwavering.

"Don't be annoying," Xinyu muttered, her voice clipped as her attention drifted back to the unfolding interaction between Y/N and Ningning. Her jaw clenched.

"Shouldn't you be worrying about Nien?" she added, tilting her head toward another scene across the room-where someone was very obviously flirting with Sohyun's girlfriend.

At that, Sohyun's teasing expression faltered. She hastily turned to look, her eyes widening at the sight, before mumbling a rushed excuse and making her way toward Nien.

Xinyu, however, didn't move an inch. She was still fixated on Ningning and her very obvious intentions.

And she was not amused.

Xinyu rolled her eyes as Sohyun scurried off, barely sparing her friend another glance before returning her full attention to Y/N and Ningning. Her grip on the tequila glasses tightened, knuckles turning slightly white. She knew Ningning had always been bold, but to be this shameless in front of her? It made something dark stir inside her chest-something territorial.

She was across the room before she could even register moving, the heels of her boots clicking against the floor with purpose. Y/N's laughter rang in her ears, the sound usually so sweet now grating as she watched Ningning lean in just a little too close, her hand ghosting over Y/N's forearm in a way that made Xinyu see red.

"Baby," Xinyu's voice was smooth, but her sharp glare at Ningning told another story. She slid in between them with practiced ease, pressing one of the cold tequila glasses into Y/N's hand while her free arm snaked around her waist, pulling her close.

Y/N blinked in surprise, looking up at her girlfriend, completely oblivious to the storm brewing in her eyes. "Oh, hey, love. I was just-"

"Yeah, I saw," Xinyu interrupted, her tone casual but laced with warning as she finally turned to Ningning, who was still standing there, clearly amused. "Ningning, enjoying yourself?"

Ningning smirked, tilting her head in faux innocence. "I was, actually. Y/N's great company."

"She is," Xinyu agreed, her nails pressing slightly into Y/N's hip. "That's why she's mine." The words were soft but carried enough weight to make Ningning raise her hands in mock surrender.

"Relax, Xinyu," Ningning chuckled, though there was a knowing glint in her eyes. "No harm done. Just a friendly chat."

Xinyu didn't bother responding. Instead, she turned to Y/N, eyes dark and smoldering, and leaned in so closely that their noses almost brushed. "Come dance with me," she murmured, her lips ghosting against Y/N's ear in a way that sent a shiver down her spine.

Y/N, never one to deny Xinyu, nodded, allowing her girlfriend to lead her away. But before they fully turned, Xinyu cast one last glance over her shoulder at Ningning, smirking as she pulled Y/N even closer against her.

And just like that, Xinyu made sure everyone in the room knew exactly who Y/N belonged to.