When Your Ass Is Tidally Locked With The Audience Viewpoint

After looking at so much art for C.C., I've concluded that she is physically unable to keep her butt from facing the audience.  It's like a gravitational pull thing, like her butt is literally the moon and tidally locked with the Earth/audience viewpoint and always faces us no matter what.

(Art from Code Geass: Genesis Re Code, JORO Inc. & Sunrise, submitted by anonymous)