Muddy archaelogy

On that rainy day Natalie is out in her black vinyl pants, wellies, bikini and white/black vinyl raincoat. That night she dreamed of finding some gold nuggets and gives it a try. When washing small stones out of the dirt she gets really dirty in her raincoat. Indeed she feels that she likes it and wants to get even dirtier. When she's really muddy she leaves on that muddy raincoat and decides to walk home.