In the heart of Iowa, two nervous, pretty girls, one plus-sized and the other with an innocent charm, step into the casting couch, their eyes wide with curiosity and apprehension. They're from Cedar Rapids, ready to explore the world of porn for the first time. The casting director, Nebraska Jim, eases them into it, asking them to touch themselves, to finger their wet, virgin pussies. Their shy masturbation fills the room with a new, arousing energy. They're not yet comfortable with their bodies, but the excitement of the first time is palpable.