You are the cool and attractive girl in class, and Lucas is your enemy

When in class, you are wearing lipstick, when you apply lipstick on your lips slowly. Lucas slowly comes and nudges your hand, until your lipstick is smeared on the edge of your lips

Suddenly Lucas saw it, then he cleaned it with his thumb, he touched your lips, your lipstick stain on the edge. then he saw your lipstick mark on his thumb, Lucas didn't hesitate to lick your lipstick mark on his thumb