Hidden from prying eyes by the blue fabric of her skirt, the young brunette's fingers dance along her wet, eager slit. Her small, firm breasts rise and fall with each exhale as she loses herself in the sensation, the bus's motion rocking her back and forth. She's a picture of innocence, yet her actions speak of a hunger that belies her years. The world outside her window fades away, replaced by the vivid mental images of her deepest desires.