High Velocity
Pairing: Lee Heeseung x Fem!Reader (Y/N)
Genre: Fluff, College AU, Established Relationship, Soft/Protective Heeseung
Synopsis: After a draining, stressful day of dealing with uncooperative group projects and campus noise, all Y/N wants to do is drown in her textbooks. But Heeseung, the university’s resident charming troublemaker and her fiercely protective boyfriend, has other plans. Sweeping her away from the stress on the back of his motorcycle, he reminds her exactly why she let him break down her walls in the first place
WC: 1.34k! Or 1,348 words
The steady hum of the neon sign outside the convenience store was usually the loudest thing on campus after 9:00 PM. For Y/N, that hum was a welcome relief from the chaos of finals week. Sitting at one of the plastic outdoor tables, buried behind a fortress of heavy textbooks and highlighted notes, she adjusted her glasses. She was the department’s top student—the quiet, focused overachiever everyone knew of but few actually knew.
Then came the roar of an engine that shattered the quiet night.
A sleek, midnight-black Yamaha pulled up to the curb. The rider cut the engine, kicked down the stand, and slid off his helmet, shaking out a mess of dark hair. It was Lee Heeseung.
Heeseung was the university’s resident paradox: a notorious troublemaker who somehow maintained effortless top grades, an absolute heartthrob, and a guy who lived for adrenaline. He was a few years older, carrying himself with a relaxed, confident maturity that intimidated most people.
But not Y/N. Not anymore.
"Still buried in the books, princess?" Heeseung’s voice carried that familiar, teasing lilt as he sauntered over. He tossed his helmet onto the plastic table, the leather of his jacket creaking softly as he leaned over her shoulder to look at her notes. "You're going to give yourself a headache."
"Some of us actually have to study, Heeseung," Y/N murmured, her cheeks turning a faint pink. Even after months of his relentless teasing and a very public, very persistent courting period that had turned the campus gossip mill upside down, his proximity still made her heart race.
"I study," he protested, a smirk tugging at the corner of his lips. He reached down, his long fingers gently closing her textbook. "I just prefer practical applications. Come on. You’ve been staring at that page for an hour."
"I have not," she lied, though her tired eyes betrayed her.
Heeseung sighed softly, his expression softening from his usual playful arrogance to something deeply attentive. He reached out, his thumb gently brushing against her cheekbone. "You look exhausted. And you've been quiet all day. What's wrong?"
Y/N sighed, leaning into his touch just a fraction. "Just a rough day. The group project members aren't cooperating, the professor changed the exam rubric, and some guys in the lounge were being incredibly loud and rude when I asked them to quiet down."
Heeseung’s eyes darkened instantly, the easygoing posture vanishing. "Rude? Who?"
"It doesn't matter," she said quickly, placing a hand on his leather-clad forearm. She knew how Heeseung was. He was fiercely protective, possessing a sharp temper whenever someone directed negativity toward her. "I handled it. Don't start anything."
He stared at her for a moment, the tension in his jaw tight, before he let out a slow breath, letting her touch calm him down. "Fine. But if they bother you again, you tell me." He knocked his knuckles gently against her forehead. "Pack up your things."
"Why?"
"Because your boyfriend is taking you away from all this," he said, gesturing to the stack of papers. "No arguments."
An hour later, the campus was far behind them. Y/N sat on the back of Heeseung’s heavy bike, her arms wrapped tightly around his waist, her face pressed against the sturdy warmth of his back. The cool night air whipped past them as they cruised down the empty highway overlooking the city lights.
With Heeseung, the speed wasn't terrifying; it was freeing. Every boundary she carefully maintained during the day melted away whenever she was on the back of his bike.
He pulled over at their usual spot—a secluded scenic overlook that gave a panoramic view of the glowing city below. He killed the engine, leaving only the quiet wind and the distant hum of the city.
Heeseung unbuckled his helmet and turned around, catching Y/N as she slid off the seat. His hands rested on her waist, pulling her flush against him. Despite his reputation as the university’s untouchable bad boy, the way he looked at her was entirely soft.
"Better?" he asked, searching her face.
"Much better," Y/N admitted, a genuine smile finally breaking through her fatigue. "Thank you."
"Good." He leaned down, pressing a slow, lingering kiss to her lips. It was warm, comforting, and tasted faintly of mint. When he pulled away, he rested his forehead against hers, a rare, quiet contentment settling over him. "I hate seeing you stressed. You work too hard, Y/N."
"And you don't work hard enough," she countered weakly, though there was no real weight behind it.
Heeseung chuckled, the sound vibrating against her chest. "Hey, I get the job done. I just know when to take a break." He reached into his jacket pocket and pulled out a small, crumpled paper bag, handing it to her. Inside was a warm pastry from the late-night bakery near his apartment. "Here. I know you forgot to eat dinner."
Y/N looked from the bag up to his eyes, touched by the gesture. No matter how chaotic or reckless he seemed to the rest of the world, he never missed the small details when it came to her.
"You're ridiculous, you know that?" she whispered, smiling.
"I'm attentive," Heeseung corrected smoothly, winking as he leaned back against the guardrail, pulling her into his side so they could watch the city together. "There's a difference, princess."
The city lights twinkled below like a scattered handful of diamonds, casting a soft glow over the overlook. Y/N took a bite of the pastry, the sweet warmth a perfect contrast to the crisp night air. She leaned her head against Heeseung’s shoulder, feeling the steady rise and fall of his chest beneath his leather jacket.
"So," Heeseung murmured, his fingers idly playing with the hem of her oversized sweater. "Are you going to let me handle those guys in the lounge tomorrow, or am I going to have to accidentally-on-purpose bump into them?"
Y/N let out a soft laugh, shaking her head. "You are absolutely not bumping into anyone, Lee Heeseung. I told you, it’s fine. They were just being loud. Besides, if you get into another fight, the dean is going to suspend you from the engineering department, top grades or not."
"I don't fight," he said, sounding entirely too innocent. "I just have strong communication skills."
"Right. Like last month when you 'communicated' with that guy from the sports science major?"
Heeseung chuckled, a low, rumbling sound that she could feel against her back. "He was staring at you like you were a piece of meat on a menu. I just reoriented his perspective."
He reached down, gently turning her face toward him so he could look into her eyes. The playful smirk was gone, replaced by that intense, protective gaze that always made her breath hitch. Heeseung was a flirt, an annoying teaser, and a total menace to the rest of the campus, but when it came to her, he was fiercely loyal. He had spent months patiently breaking down her shy walls, showing up at her library tables with iced coffees, waiting out her quiet silences, and defending her when people whispered about the "nerdy girl" catching the attention of the university's ultimate heartthrob.
"Seriously, though," he said softly, his thumb tracing the line of her jaw. "If anyone makes you uncomfortable, you tell me. You don't have to carry everything on your own just because you're the top student."
"I know," she whispered, her heart swelling. "Thank you."
He smiled, the tension melting from his shoulders as he leaned down to press another gentle kiss to her forehead. "Come on. Let's get you home before you fall asleep on my bike. I'll walk you up to your apartment."
As they climbed back onto the heavy motorcycle, Y/N wrapped her arms tightly around his waist again. The engine roared to life, a powerful vibration beneath them, but as they sped down the winding roads back toward the university dorms, she felt entirely safe, completely grounded by the boy who lived his life in the fast lane just to slow down for her.
─ I can't feel my face when I'm with you, but I love it 🎧
