Bakugou x Marinette (sister's BFF)

Teasing Tides and Awkward Denials

"Why do I always have to sit in the back?" I grumbled as I slid into the rear seat of the car, shooting a glare at Kanami.

"Because Marinette is my best friend and she will always sit in the front whenever I'm around," Kanami retorted with a smirk as she settled into the driver's seat.

I let out an exasperated groan, feeling the irritation bubbling up within me. It seemed like Marinette's presence always managed to disrupt my peace of mind.

If I want to ignore these damn feelings, I need to stop seeing her altogether. Easier said than done.

God, Marinette... her eyes were always so captivating, even when I tried my damnedest to look away.

"Hey, girl!" Kanami's cheerful voice pulled me out of my thoughts, and I glanced out the window to see that we had arrived at Marinette's apartment building.

"Hey, Kan!" Marinette's enthusiastic greeting filled the car as she bounded over to hug my sister.

"Well, isn't this cute?" I muttered sarcastically, unable to resist kicking the back of Marinette's seat lightly.

"Hey! Bakugou!" Marinette whirled around, her eyes narrowed playfully as she shot me a mock glare.

"What, you gonna do, Blueberry?" I teased, earning a huff of annoyance from Marinette before she turned back around.

"Alright, cut it out, Kat," Kanami admonished from the driver's seat, her tone firm but fond as she steered the car toward my high school.

I sat in the backseat of the car, enduring my sister and Marinette's incessant chatter about whatever nonsense girls talked about. It felt like an eternity as they giggled and reminisced, and I couldn't help but tune out most of their conversation.

"So, Mari? Any new crushes? Actually! You didn't have a crush ever since high school! Remember Adrien?! OMG, you were obsessed with him!" Kanami's voice broke through the noise, and I resisted the urge to roll my eyes.

"Kanami! You don't need to remind me!" Marinette's cheeks flushed bright red, and I shifted uncomfortably in my seat, wishing I could disappear.

"You were obsessed, girl. And he didn't even know!" Kanami teased, her tone light and teasing, but I could sense the tension building in Marinette.

"Stop!" Marinette groaned, her embarrassment palpable.

"Remember how Kat just beat him one day? Why did you do that, by the way, Kat?" Kanami's eyes flicked to me through the rearview mirror, and I scowled, crossing my arms over my chest.

"I didn't do shit, shut up," I snapped, my annoyance boiling over.

"Whatever, jackass," Kanami muttered under her breath, and I shot her a glare.

"Guys," Marinette scolded gently, attempting to diffuse the situation.

I clenched my fists, feeling the weight of the memory crashing down on me like a ton of bricks.

Flashback:

I was 15, in my first year of high school, while my sister and Marinette were in their last year. I couldn't stand watching Marinette pine after Adrien, who was oblivious to her feelings and callously broke her heart time and time again.

So, one day, I snapped.

"Stupid baka," I muttered to Marinette, my heart aching for her as she struggled to hold back her tears.

"Shut up," she muttered, wiping her eyes, and I felt a surge of anger.

I stormed toward Adrien, my fists clenched at my sides, and without a second thought, I punched him square in the face before he could utter a word.

"What the hell?!" Adrien shouted, stumbling backward from the force of my blow.

He was on the ground, a bruise already forming on his cheek, and Marinette rushed to his side, trying to pull me away.

"Stay the fuck away from Marinette!" I growled, kicking him one last time before allowing Marinette to drag me away from the scene.

Even though she was three years older, she was still so much smaller than me.

Flashback over:

"Alright, we're here, Kat," Kanami's voice interrupted my thoughts, and I glanced out the window to see my school looming ahead.

"Thanks," I muttered, my emotions still raw from the memories that lingered.

"Have fun at school!" Marinette's cheerful voice followed me as I stepped out of the car, the reminder of our different paths in life weighing heavily on my mind.

Marinette's POV:

"I can't believe you brought up my dating life in front of your brother, Kan," I muttered, feeling my cheeks flush with embarrassment.

"Why not?" Kanami's voice was teasing, and I shot her a glare.

"Just because—" I started, but she interrupted me before I could finish.

"You have a crush on him?" Kanami's eyes widened in mock surprise, and I sputtered incoherently, my face growing even hotter.

"W-What!? No! What! No, I don't! That's weird!" I stammered, my heart racing in my chest.

"C'mon, Mari! I don't mind you dating my brother—" Kanami continued, undeterred by my protests.

"He's younger than me too, Kanami!?" I interjected, feeling flustered and overwhelmed by her relentless teasing.

"So what? He'll be 18 at the end of the year!" Kanami shrugged as if it were the most natural thing in the world.

"Kanami! He's your brother!?" I exclaimed, unable to comprehend her nonchalant attitude.

"So what!?" Kanami shrugged again, her expression unapologetic.

"He doesn't even like me. He hates me anyway. And I don't like him like that!" I insisted, feeling the need to defend myself against Kanami's teasing.

"Uh-huh...sure. Totally," Kanami smirked, clearly not convinced by my protests.

"Whatever," I huffed, crossing my arms over my chest in frustration. Kanami could be so infuriating sometimes.