In a famous graffiti tunnel at Sydney University, Penny arms her bladder and makes her own mark... without a can of spray paint! In tight blue shorts, she leans on the colourful wall and lets rip - pee streams down her legs, and tumbles to the ground, splashing the wall on the way. She laughs at the irony of making a non-permanent mark, then shows off her wet panties (with flashes of her hairy pee-soaked pussy). The only remains are a rapidly drying puddle, and a slight pissy odour.