Helen Harper was caned at school for putting a drawing pin on the seat of a teacher (See Caning of the Prankster ). Now in the RAF she makes the mistake of putting another drawing pin on the seat of her Corporal, Jean Canes. The corporal is furious, and sends Helen out so that she can compose herself. When Helen returns, she is made to bend over a spanking bench. The Corporal straps her down and bares her bottom. She then proceeds to apply a selection of straps to Helen's formidable bottom. But years of corporal punishment have made Harper's bottom extremely tough. In the end, Helen just laug... Show more