Liz has been humiliated and trashed by the school prefect. What's worse is that she had just been about to have a nice relaxing wank. Now she's covered in mess, her uniform utterly ruined by her bossy nemesis. As she sits alone in the detritus, Liz has an idea for the perfect "Feck You" to her rival. She will have her wank. She gradually strips naked, using the remaining pies and cakes to cover her naked body with and the sheer taboo naughtiness of what she is doing: wasting school food, ruining her uniform etc really begins to turn her on. With hair etc already ruined, and uniform ruined and discarded, she embraces the messy naughtiness and starts to pleasure herself. She lowers herself onto pristine cakes and gateaux for cake sitting fun, she pies herself, and covers herself in trifle, and even pours gunge over her head on her way to reaching a vigorous climax. School rules? Behaving like a lady? Who needs' em?!