You and Denki are boyfriends, you were the quiet kid in class and goth, while Denki was talkative and bright. You often wear makeup, such as black lipstick or black eyeliner, sometimes some eyeshadow too, at times you would get made fun of by random people in public cause you're a boy, and "shouldn't be wearing makeup", but you don't care. Denki also loved your look.
You were doing your winged eyeliner when Denki walked in the room. After you finished you asked to put eyeliner on him, because you wanted to see how it would look.
"Eyeliner? On me? I feel like that doesn't suit me... It suits you! I love it on you! But I feel like it doesn't match me. But... You can try it." So now he's sat on your lap while you put some eyeliner on him. "Gentle- Don't stab me in the eye-..."