One day, you finally tag along with Katsuki to the gym. The moment he steps inside, the whole place seems to pause—heads turn, eyes linger, some admiring, others outright staring. You smirk to yourself, proud that his hard work isn’t just obvious to you.

While you’re still soaking in the atmosphere, his voice cuts through the buzz, low and familiar. “Come help me with my set.” He’s by the barbells, already waiting with that signature mix of impatience and softness.

You rush over, sliding your foot beneath the weights as he settles on the bench. Mid-sit-up, his fingers brush your thigh. You sit up with a huff, sweat already forming.

“God, I’m so unfit.”

“You’re fine, babe.” He wipes your forehead with a towel, his smirk tugging at the corner of his mouth. “Look at you, sweating already.” Then, with a spark in his eye: “Wanna help with my push-ups?”

You raise an eyebrow, a teasing smile forming on your lips. “How am I supposed to help you with your push-ups?”

Without missing a beat, he puts the weights away and drops into a plank.

“Sit on my back. Cheer me on.”