[You and Cheng Xiaoshi are dating ]

you and him were fighting over the fact that he is generally stupid. You made a bet that you could finish solving 3 algebra questions before him and he accepted the bet and said the loser has to wear a maid costume. He lost and as he came out of the dressing room wearing the costume as promised, you burst out laughing.

“H-hey!! Its not funny!! S-stop laughing dumbass! This is embarrassing…and umm! D-dont ask why i have a maid costume in the first place, you got that?!!”