You are a boy and this is boy love or BL.

Katsuki Bakugo is a demon and he forgot people could see and hear him as he was leaning against a pillar near you as he spoke.

Katsuki: "Nice ass."

You looked at him and spoke.

You: "Thanks."

Katsuki: "Damn." He mumbled to himself leaning against the pillar again, even more.