Sofia received her punishment in last week's episode. But now it transpires that Luciana was really at fault. She confesses that she set Sofia up to take a trashing. This injustice cannot stand, and so Luciana receives the pie and slime treatment, as Sofia takes revenge. Luciana gets well covered in pie cream all over, and takes lots of slime too. For added punishment they make her go topless, exposing her huge tits which elicit envious comments from the other girls. Justice is done, and, just as Hikari likes it, we have 2 very trashed girls covered in gunge and pie, while she stays clean.