Sero's sister

Chapter 16: Turn Up the Heat

The afternoon sun streamed through the gym windows as Y/N and Bakugou finished their joint training session. They had been sparring for over an hour, both of them pushing their limits, and it was clear neither wanted to stop until the other gave in.

But Y/N had a different plan in mind today.

As Bakugou caught his breath, Y/N wiped the sweat from her brow and shot him a sly smile, mischief dancing in her eyes. She had noticed how focused and intense he had been during their training—like he always was—but there was something about him today that made her want to push his buttons just a little bit.

"Getting tired already, Bakugou?" she teased, her voice laced with playfulness as she sauntered toward him.

Bakugou scoffed, not missing a beat as he straightened up, his sharp eyes locking onto hers. "You wish. I could go all day."

Y/N's smile widened as she closed the distance between them, her gaze flicking up and down his sweat-drenched form. "All day, huh? You sure about that?"

Bakugou's brow furrowed slightly, his usual cocky smirk faltering just a bit at the way she was looking at him. "What're you gettin' at?"

Y/N stepped even closer, her voice dropping to a low, teasing tone. "Oh, nothing. I just think you might be underestimating how much stamina it takes to keep up with me."

She could see the change in his eyes instantly, the way his gaze darkened, his breath hitching ever so slightly. Her words had clearly hit their mark, and Y/N felt a rush of satisfaction. It wasn't often she got to see Bakugou caught off guard, but when she did, it was worth it.

Bakugou's jaw clenched as he stared down at her, his body tensing as she moved in close enough that their arms brushed. "Is that supposed to be a challenge?"

Y/N tilted her head, her smile growing even more playful. "Maybe. Unless you think you can't handle it."

Bakugou's eyes narrowed, his expression shifting into something much more dangerous. "You're playin' a dangerous game, Y/N."

She raised an eyebrow, leaning in just enough that their faces were inches apart. "Am I?"

The tension between them crackled like electricity, the air heavy with anticipation. Y/N could feel the heat radiating off of him, could see the way his eyes lingered on her lips as she spoke. For once, Bakugou was at a loss for words, and it made her feel like she was holding all the power in this moment.

She could sense how badly he wanted her, how her teasing was affecting him, and it only made her bolder.

"You know," she said softly, her voice barely above a whisper, "you don't always have to act so tough. I know there's more to you than just all that aggression."

Bakugou's breath hitched, his gaze locked onto hers, and Y/N felt the heat between them rise to a boiling point. He clenched his fists, as if trying to keep control of himself, but she could see the way his body was reacting—the way he was holding back.

"Y/N," he growled, his voice low and rough, "you're askin' for trouble."

You smirked, leaning in just a little closer, her lips barely brushing against his ear as she whispered, "Maybe I like trouble."

She heard the sharp intake of breath from him, and before she could pull away, Bakugou's hands shot out, gripping her waist with a sudden intensity. He didn't pull her into him, but the weight of his hands sent a thrill through her, his touch searing even through her clothes.

His voice was a low, dangerous whisper as he spoke. "You don't know what you're messin' with."

Y/N's heart raced, but she didn't back down. She could feel the tension radiating off of him, could see the desire in his eyes, and it made her want to push him even further.

"Oh, I think I do," she murmured, letting her fingers lightly trace the edge of his collarbone, teasing him with just a hint of contact. "The question is, can you handle it?"

Bakugou's grip on her waist tightened, and for a moment, she thought he might snap, might pull her against him and lose all the control he was barely holding onto. His breathing had quickened, his body taut like a spring ready to uncoil, and Y/N reveled in the power she held over him.

But then, just as quickly as the moment had built, Bakugou growled low in his throat and abruptly released her, stepping back with a dangerous glint in his eyes. He ran a hand through his hair, clearly trying to compose himself, though his gaze never left hers.

"You're gonna regret that," he muttered, his voice thick with restrained desire.

Y/N smirked, taking a step back herself, but not before letting her fingers trail along his arm as she pulled away. "We'll see about that."

She turned and walked toward the locker rooms, throwing a glance over her shoulder at him as she left. The look on his face—somewhere between frustration and hunger—was enough to make her pulse race.

As she disappeared around the corner, Y/N couldn't help but smile to herself. She'd gotten under Bakugou's skin in a way she never had before, and it thrilled her to know she had that effect on him.

The game had just begun.