Ruby is an innocent white lass, who has a fantasy about a black man who works in her local supermarket. She sets out to seduce him, and gets more than she bargained for. She had heard that black men were big, but she never imagined it could be that big. The line between pain and pleasure is blurred, as Ruby gets herself stretched to the limit. At last, she understands the meaning of the saying "when you go black, you can never go back"