As the song goes, "Girls will be boys and boys will be girls." "Cock: A Novelette" is the story of a woman who grows a fully functional penis. "Bull: A Farce" is the story of a man who acquires a vagina and all its companion parts.

There are, however, complications.

Cock & Bull is plain evidence that Will Self is an enfant terrible of English letters in the tradition of Martin Amis and Julian Barnes.