Slippers For Stroke How Come At The Stroke Of Midnight Cinderella's Glass Slipper Didnt Disappear Too?

How come at the stroke of midnight Cinderella's glass slipper didnt disappear too? - slippers for stroke

Micky said that it was true that if I leave early and was with the prince, who already bare so that night was nothing missing. (their virginity, but you'll lose)