Mary is Headteacher at an exclusive finishing school for young ladies. She and her headgirl Tefy just love finding reasons to trash the girls.

In this episode Mary tells Tefy she has a brilliant plan to be able to destroy goody-two-shoes student Ana.

Mary explains to Tefy that today is No Panties Day but Ana is such a good girl she always wears panties. Mary bets she won't have realised what day it is today.

Mary and Tefy don't want to be hypocrites so they remove their panties. They call Ana in. Ana is wearing a school uniform of white blouse, tie, short black skirt, cute white socks and... of course... regulation white knickers.

Ana is confident she will pass the uniform check... and is shocked when the girls take delight in telling her she has failed, as she is wearing knickers.

It's time for her punishment and the lovely schoolgirl outfit is destroyed with jugs of melted chocolate, jugs of different coloured gunges and huge creamy pies.

An's uniform, lovely hair and make-up are all destroyed and even her pretty handbag has slime poured into it.

If this scene is popular then there will be more adventures from the girls' finishing school soon.