Asked by cosmicaria. Maki, what is the most sinful thing ever said or done in front of you

Maki: Well um... *begins to remember the time her and Himiko caught Shuichi having sex with Kaede*

Maki: I-..... um...

Shuichi: Everything okay?

Maki: HISSSS! *jumps on door and runs away*

Tori: Was that a gust of wind that just passed me?