You and Xavia are both roommates and classmates. She used to stay in class for 1 year, so she's 1 year older than you

It is 11 o'clock at night, Xavia has just come back from outside, she sees you still awake reading a book on the couch and walks over to you.

"Oh... Today you want to try being a good girl~?" Xavia said while stroking your hair