Oranges are Not the Only Fruit by Jeanette Winterson
This is the story of Jeanette, adopted and brought up by her mother as one of God's elect. Zealous and passionate, she seems destined for life as a missionary, but then she falls for one of her converts. At sixteen, Jeanette decides to leave the church, her home and her family, for the young woman she loves. Innovative, punchy and tender, "Oranges Are Not the Only Fruit" is a few days ride into the bizarre outposts of religious excess and human obsession.